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updates for theme branch

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This commit is contained in:
Paul 2020-06-06 13:17:50 +02:00
parent c23395555d
commit b39c995204
108 changed files with 14102 additions and 7077 deletions
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2
cmd/qrz/qrz.go
View File

@ -8,7 +8,7 @@ import (
"git.paulbsd.com/paulbsd/qrz/src/database"
"git.paulbsd.com/paulbsd/qrz/src/qrz"
"git.paulbsd.com/paulbsd/qrz/src/qrzws"
_ "github.com/go-sql-driver/mysql"
_ "github.com/lib/pq"
)
var version string

4
go.mod
View File

@ -5,14 +5,14 @@ go 1.12
require (
github.com/antchfx/htmlquery v1.0.0
github.com/antchfx/xpath v1.0.0 // indirect
github.com/go-sql-driver/mysql v1.4.1
github.com/gobuffalo/packr/v2 v2.8.0
github.com/jinzhu/gorm v1.9.12
github.com/jmoiron/sqlx v1.2.0
github.com/labstack/echo/v4 v4.1.16
github.com/lib/pq v1.1.1
github.com/markbates/pkger v0.14.0
github.com/robfig/cron v1.2.0
github.com/smartystreets/goconvey v0.0.0-20190731233626-505e41936337 // indirect
golang.org/x/text v0.3.2
google.golang.org/appengine v1.6.2 // indirect
gopkg.in/ini.v1 v1.46.0
)

20
go.sum
View File

@ -22,8 +22,12 @@ github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/denisenkom/go-mssqldb v0.0.0-20191124224453-732737034ffd h1:83Wprp6ROGeiHFAP8WJdI2RoxALQYgdllERc3N5N2DM=
github.com/denisenkom/go-mssqldb v0.0.0-20191124224453-732737034ffd/go.mod h1:xbL0rPBG9cCiLr28tMa8zpbdarY27NDyej4t/EjAShU=
github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
github.com/erikstmartin/go-testdb v0.0.0-20160219214506-8d10e4a1bae5 h1:Yzb9+7DPaBjB8zlTR87/ElzFsnQfuHnVUVqpZZIcV5Y=
github.com/erikstmartin/go-testdb v0.0.0-20160219214506-8d10e4a1bae5/go.mod h1:a2zkGnVExMxdzMo3M0Hi/3sEU+cWnZpSni0O6/Yb/P0=
github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
@ -43,6 +47,8 @@ github.com/gobuffalo/packr/v2 v2.8.0 h1:IULGd15bQL59ijXLxEvA5wlMxsmx/ZkQv9T282zN
github.com/gobuffalo/packr/v2 v2.8.0/go.mod h1:PDk2k3vGevNE3SwVyVRgQCCXETC9SaONCNSXT1Q8M1g=
github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=
github.com/golang-sql/civil v0.0.0-20190719163853-cb61b32ac6fe h1:lXe2qZdvpiX5WZkZR4hgp4KJVfY3nMkvmwbVkpv1rVY=
github.com/golang-sql/civil v0.0.0-20190719163853-cb61b32ac6fe/go.mod h1:8vg3r2VgvsThLBIFL93Qb5yWzgyZWhEmBwUJWevAkK0=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
github.com/golang/groupcache v0.0.0-20190129154638-5b532d6fd5ef/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
@ -59,6 +65,12 @@ github.com/grpc-ecosystem/grpc-gateway v1.9.0/go.mod h1:vNeuVxBJEsws4ogUvrchl83t
github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
github.com/jinzhu/gorm v1.9.12 h1:Drgk1clyWT9t9ERbzHza6Mj/8FY/CqMyVzOiHviMo6Q=
github.com/jinzhu/gorm v1.9.12/go.mod h1:vhTjlKSJUTWNtcbQtrMBFCxy7eXTzeCAzfL5fBZT/Qs=
github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
github.com/jinzhu/now v1.0.1 h1:HjfetcXq097iXP0uoPCdnM4Efp5/9MsM0/M+XOTeR3M=
github.com/jinzhu/now v1.0.1/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
github.com/jmoiron/sqlx v1.2.0 h1:41Ip0zITnmWNR/vHV+S4m+VoUivnWY5E4OJfLZjCJMA=
github.com/jmoiron/sqlx v1.2.0/go.mod h1:1FEQNm3xlJgrMD+FBdI9+xvCksHtbpVBBw5dYhBSsks=
github.com/jonboulle/clockwork v0.1.0/go.mod h1:Ii8DK3G1RaLaWxj9trq07+26W01tbo22gdxWY5EU2bo=
@ -84,6 +96,8 @@ github.com/labstack/gommon v0.3.0 h1:JEeO0bvc78PKdyHxloTKiF8BD5iGrH8T6MSeGvSgob0
github.com/labstack/gommon v0.3.0/go.mod h1:MULnywXg0yavhxWKc+lOruYdAhDwPK9wf0OL7NoOu+k=
github.com/lib/pq v1.0.0 h1:X5PMW56eZitiTeO7tKzZxFCSpbFZJtkMMooicw2us9A=
github.com/lib/pq v1.0.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
github.com/lib/pq v1.1.1 h1:sJZmqHoEaY7f+NPP8pgLB/WxulyR3fewgCM2qaSlBb4=
github.com/lib/pq v1.1.1/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
github.com/markbates/errx v1.1.0 h1:QDFeR+UP95dO12JgW+tgi2UVfo0V8YBHiUIOaeBPiEI=
github.com/markbates/errx v1.1.0/go.mod h1:PLa46Oex9KNbVDZhKel8v1OT7hD5JZ2eI7AHhA0wswc=
@ -102,6 +116,8 @@ github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHX
github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
github.com/mattn/go-sqlite3 v1.9.0 h1:pDRiWfl+++eC2FEFRy6jXmQlvp4Yh3z1MJKg4UeYM/4=
github.com/mattn/go-sqlite3 v1.9.0/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
github.com/mattn/go-sqlite3 v2.0.1+incompatible h1:xQ15muvnzGBHpIpdrNi1DA5x0+TcBZzsIDwmw9uTHzw=
github.com/mattn/go-sqlite3 v2.0.1+incompatible/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
@ -167,14 +183,17 @@ go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/
go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20190325154230-a5d413f7728c/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20191122220453-ac88ee75c92c/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/crypto v0.0.0-20191205180655-e7c4368fe9dd/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/crypto v0.0.0-20200221231518-2aa609cf4a9d h1:1ZiEyfaQIg3Qh0EoqpwAakHVhecoE5wlSg5GjnafJGw=
golang.org/x/crypto v0.0.0-20200221231518-2aa609cf4a9d/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181220203305-927f97764cc3/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@ -222,6 +241,7 @@ golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8T
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/appengine v1.6.2 h1:j8RI1yW0SkI+paT6uGwMlrMI/6zwYA6/CFil8rxOzGI=
google.golang.org/appengine v1.6.2/go.mod h1:i06prIuMbXzDqacNJfV5OdTW448YApPu5ww/cMBSeb0=
google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=

2
src/database/main.go
View File

@ -10,7 +10,7 @@ import (
// Initialize creates connection to database and exec Schema
func Initialize(config *config.Config) (err error) {
config.Db, err = sqlx.Connect("mysql", fmt.Sprintf("%s:%s@tcp(%s)/%s", config.DbUsername, config.DbPassword, config.DbHostname, config.DbName))
config.Db, err = sqlx.Connect("postgres", fmt.Sprintf("postgres://%s:%s@%s/%s", config.DbUsername, config.DbPassword, config.DbHostname, config.DbName))
if err != nil {
log.Fatalln(err)
}

16
src/qrz/main.go
View File

@ -8,9 +8,11 @@ import (
"net/http"
"regexp"
"strings"
"time"
"git.paulbsd.com/paulbsd/qrz/src/config"
"github.com/antchfx/htmlquery"
"github.com/jinzhu/gorm"
"github.com/robfig/cron"
)
@ -170,3 +172,17 @@ type FrsEntry struct {
Country sql.NullString `db:"country"`
Fts sql.NullString `db:"fts"`
}
// Qrz is the structure of qrz entries
type Qrz struct {
gorm.Model
Name string
Age sql.NullInt64
Birthday *time.Time
Email string `gorm:"type:varchar(100);unique_index"`
Role string `gorm:"size:255"` // set field size to 255
MemberNumber *string `gorm:"unique;not null"` // set member number to unique and not null
Num int `gorm:"AUTO_INCREMENT"` // set num to auto incrementable
Address string `gorm:"index:addr"` // create index with name `addr` for address
IgnoreMe int `gorm:"-"` // ignore this field
}

4
src/qrzws/main.go
View File

@ -146,7 +146,7 @@ func BuildQueryCountTotal(config config.Config, qrzdt QrzDatatableInput) (cnt in
// SetSelectStatement build the sql select statement part
func SetSelectStatement(config config.Config, qrzdt QrzDatatableInput) (selectstatement string, err error) {
var cols []string
colre := regexp.MustCompile(`^[a-z]+$`)
colre := regexp.MustCompile(`^[A-Za-z0-9]+$`)
if len(qrzdt.Columns) > 0 {
for _, col := range qrzdt.Columns {
valid := colre.MatchString(col.Name)
@ -168,7 +168,7 @@ func SetSelectStatement(config config.Config, qrzdt QrzDatatableInput) (selectst
// SetOrderStatement build the sql order statement part
func SetOrderStatement(config config.Config, qrzdt QrzDatatableInput) (orderstmt string, err error) {
var orderstmts []string
colre := regexp.MustCompile(`^[a-z]+$`)
colre := regexp.MustCompile(`^[A-Za-z0-9]+$`)
orderre := regexp.MustCompile(`^(ASC|asc|DESC|desc)$`)
for _, col := range qrzdt.Order {
if colre.MatchString(qrzdt.Columns[col.Column].Name) && orderre.MatchString(col.Dir) {

3
static/css/main.css
View File

@ -2,8 +2,6 @@ body
{
font-family: "Helvetica Neue", "HelveticaNeue", "Helvetica", "Arial", "sans-serif";
}
<<<<<<< Updated upstream
=======
#main_table_length
{
@ -16,4 +14,3 @@ body
}
#main_table_paginate
>>>>>>> Stashed changes

13
templates/index.html
View File

@ -3,22 +3,13 @@
<head>
<link rel="stylesheet" type="text/css" href="static/css/main.css" media="screen">
<link rel="stylesheet" type="text/css" href="static/css/font-awesome/all.css">
<<<<<<< Updated upstream
<link rel="stylesheet" type="text/css" href="static/css/bootstrap.css">
<link rel="stylesheet" type="text/css" href="static/css/materialize.min.css">
=======
<link rel="stylesheet" type="text/css" href="static/css/bootstrap.min.css">
<link rel="stylesheet" type="text/css" href="static/css/dataTables.bootstrap4.min.css">
>>>>>>> Stashed changes
<script type="text/javascript" src="static/js/jquery.js"></script>
<script type="text/javascript" src="static/js/jquery.dataTables.min.js"></script>
<script type="text/javascript" src="static/js/bootstrap.min.js"></script>
<script type="text/javascript" src="static/js/dataTables.bootstrap4.min.js"></script>
<<<<<<< Updated upstream
<script type="text/javascript" src="static/js/materialize.min.js"></script>
=======
>>>>>>> Stashed changes
<script type="text/javascript" src="static/js/axios.min.js"></script>
<script type="text/javascript" src="static/js/vue.min.js"></script>
<script type="text/javascript" src="static/js/datatable.js"></script>
@ -29,11 +20,7 @@
<h1 class="display-3">FRS QRZ database</h1>
<p>Mirror of <a href="http://groupe-frs.hamstation.eu">http://groupe-frs.hamstation.eu</a> list of users</p>
<div>
<<<<<<< Updated upstream
<table id="main_table" class="striped highlight responsive-table">
=======
<table id="main_table" class="display table table-hover">
>>>>>>> Stashed changes
<thead class="thead-dark">
<tr>
<td>QRZ</td>

9
vendor/github.com/go-sql-driver/mysql/.gitignore generated vendored
View File

@ -1,9 +0,0 @@
.DS_Store
.DS_Store?
._*
.Spotlight-V100
.Trashes
Icon?
ehthumbs.db
Thumbs.db
.idea

107
vendor/github.com/go-sql-driver/mysql/.travis.yml generated vendored
View File

@ -1,107 +0,0 @@
sudo: false
language: go
go:
- 1.7.x
- 1.8.x
- 1.9.x
- 1.10.x
- master
before_install:
- go get golang.org/x/tools/cmd/cover
- go get github.com/mattn/goveralls
before_script:
- echo -e "[server]\ninnodb_log_file_size=256MB\ninnodb_buffer_pool_size=512MB\nmax_allowed_packet=16MB" | sudo tee -a /etc/mysql/my.cnf
- sudo service mysql restart
- .travis/wait_mysql.sh
- mysql -e 'create database gotest;'
matrix:
include:
- env: DB=MYSQL8
sudo: required
dist: trusty
go: 1.10.x
services:
- docker
before_install:
- go get golang.org/x/tools/cmd/cover
- go get github.com/mattn/goveralls
- docker pull mysql:8.0
- docker run -d -p 127.0.0.1:3307:3306 --name mysqld -e MYSQL_DATABASE=gotest -e MYSQL_USER=gotest -e MYSQL_PASSWORD=secret -e MYSQL_ROOT_PASSWORD=verysecret
mysql:8.0 --innodb_log_file_size=256MB --innodb_buffer_pool_size=512MB --max_allowed_packet=16MB --local-infile=1
- cp .travis/docker.cnf ~/.my.cnf
- .travis/wait_mysql.sh
before_script:
- export MYSQL_TEST_USER=gotest
- export MYSQL_TEST_PASS=secret
- export MYSQL_TEST_ADDR=127.0.0.1:3307
- export MYSQL_TEST_CONCURRENT=1
- env: DB=MYSQL57
sudo: required
dist: trusty
go: 1.10.x
services:
- docker
before_install:
- go get golang.org/x/tools/cmd/cover
- go get github.com/mattn/goveralls
- docker pull mysql:5.7
- docker run -d -p 127.0.0.1:3307:3306 --name mysqld -e MYSQL_DATABASE=gotest -e MYSQL_USER=gotest -e MYSQL_PASSWORD=secret -e MYSQL_ROOT_PASSWORD=verysecret
mysql:5.7 --innodb_log_file_size=256MB --innodb_buffer_pool_size=512MB --max_allowed_packet=16MB --local-infile=1
- cp .travis/docker.cnf ~/.my.cnf
- .travis/wait_mysql.sh
before_script:
- export MYSQL_TEST_USER=gotest
- export MYSQL_TEST_PASS=secret
- export MYSQL_TEST_ADDR=127.0.0.1:3307
- export MYSQL_TEST_CONCURRENT=1
- env: DB=MARIA55
sudo: required
dist: trusty
go: 1.10.x
services:
- docker
before_install:
- go get golang.org/x/tools/cmd/cover
- go get github.com/mattn/goveralls
- docker pull mariadb:5.5
- docker run -d -p 127.0.0.1:3307:3306 --name mysqld -e MYSQL_DATABASE=gotest -e MYSQL_USER=gotest -e MYSQL_PASSWORD=secret -e MYSQL_ROOT_PASSWORD=verysecret
mariadb:5.5 --innodb_log_file_size=256MB --innodb_buffer_pool_size=512MB --max_allowed_packet=16MB --local-infile=1
- cp .travis/docker.cnf ~/.my.cnf
- .travis/wait_mysql.sh
before_script:
- export MYSQL_TEST_USER=gotest
- export MYSQL_TEST_PASS=secret
- export MYSQL_TEST_ADDR=127.0.0.1:3307
- export MYSQL_TEST_CONCURRENT=1
- env: DB=MARIA10_1
sudo: required
dist: trusty
go: 1.10.x
services:
- docker
before_install:
- go get golang.org/x/tools/cmd/cover
- go get github.com/mattn/goveralls
- docker pull mariadb:10.1
- docker run -d -p 127.0.0.1:3307:3306 --name mysqld -e MYSQL_DATABASE=gotest -e MYSQL_USER=gotest -e MYSQL_PASSWORD=secret -e MYSQL_ROOT_PASSWORD=verysecret
mariadb:10.1 --innodb_log_file_size=256MB --innodb_buffer_pool_size=512MB --max_allowed_packet=16MB --local-infile=1
- cp .travis/docker.cnf ~/.my.cnf
- .travis/wait_mysql.sh
before_script:
- export MYSQL_TEST_USER=gotest
- export MYSQL_TEST_PASS=secret
- export MYSQL_TEST_ADDR=127.0.0.1:3307
- export MYSQL_TEST_CONCURRENT=1
script:
- go test -v -covermode=count -coverprofile=coverage.out
- go vet ./...
- .travis/gofmt.sh
after_script:
- $HOME/gopath/bin/goveralls -coverprofile=coverage.out -service=travis-ci

89
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@ -1,89 +0,0 @@
# This is the official list of Go-MySQL-Driver authors for copyright purposes.
# If you are submitting a patch, please add your name or the name of the
# organization which holds the copyright to this list in alphabetical order.
# Names should be added to this file as
# Name <email address>
# The email address is not required for organizations.
# Please keep the list sorted.
# Individual Persons
Aaron Hopkins <go-sql-driver at die.net>
Achille Roussel <achille.roussel at gmail.com>
Alexey Palazhchenko <alexey.palazhchenko at gmail.com>
Andrew Reid <andrew.reid at tixtrack.com>
Arne Hormann <arnehormann at gmail.com>
Asta Xie <xiemengjun at gmail.com>
Bulat Gaifullin <gaifullinbf at gmail.com>
Carlos Nieto <jose.carlos at menteslibres.net>
Chris Moos <chris at tech9computers.com>
Craig Wilson <craiggwilson at gmail.com>
Daniel Montoya <dsmontoyam at gmail.com>
Daniel Nichter <nil at codenode.com>
Daniël van Eeden <git at myname.nl>
Dave Protasowski <dprotaso at gmail.com>
DisposaBoy <disposaboy at dby.me>
Egor Smolyakov <egorsmkv at gmail.com>
Evan Shaw <evan at vendhq.com>
Frederick Mayle <frederickmayle at gmail.com>
Gustavo Kristic <gkristic at gmail.com>
Hajime Nakagami <nakagami at gmail.com>
Hanno Braun <mail at hannobraun.com>
Henri Yandell <flamefew at gmail.com>
Hirotaka Yamamoto <ymmt2005 at gmail.com>
ICHINOSE Shogo <shogo82148 at gmail.com>
INADA Naoki <songofacandy at gmail.com>
Jacek Szwec <szwec.jacek at gmail.com>
James Harr <james.harr at gmail.com>
Jeff Hodges <jeff at somethingsimilar.com>
Jeffrey Charles <jeffreycharles at gmail.com>
Jian Zhen <zhenjl at gmail.com>
Joshua Prunier <joshua.prunier at gmail.com>
Julien Lefevre <julien.lefevr at gmail.com>
Julien Schmidt <go-sql-driver at julienschmidt.com>
Justin Li <jli at j-li.net>
Justin Nuß <nuss.justin at gmail.com>
Kamil Dziedzic <kamil at klecza.pl>
Kevin Malachowski <kevin at chowski.com>
Kieron Woodhouse <kieron.woodhouse at infosum.com>
Lennart Rudolph <lrudolph at hmc.edu>
Leonardo YongUk Kim <dalinaum at gmail.com>
Linh Tran Tuan <linhduonggnu at gmail.com>
Lion Yang <lion at aosc.xyz>
Luca Looz <luca.looz92 at gmail.com>
Lucas Liu <extrafliu at gmail.com>
Luke Scott <luke at webconnex.com>
Maciej Zimnoch <maciej.zimnoch at codilime.com>
Michael Woolnough <michael.woolnough at gmail.com>
Nicola Peduzzi <thenikso at gmail.com>
Olivier Mengué <dolmen at cpan.org>
oscarzhao <oscarzhaosl at gmail.com>
Paul Bonser <misterpib at gmail.com>
Peter Schultz <peter.schultz at classmarkets.com>
Rebecca Chin <rchin at pivotal.io>
Reed Allman <rdallman10 at gmail.com>
Richard Wilkes <wilkes at me.com>
Robert Russell <robert at rrbrussell.com>
Runrioter Wung <runrioter at gmail.com>
Shuode Li <elemount at qq.com>
Soroush Pour <me at soroushjp.com>
Stan Putrya <root.vagner at gmail.com>
Stanley Gunawan <gunawan.stanley at gmail.com>
Xiangyu Hu <xiangyu.hu at outlook.com>
Xiaobing Jiang <s7v7nislands at gmail.com>
Xiuming Chen <cc at cxm.cc>
Zhenye Xie <xiezhenye at gmail.com>
# Organizations
Barracuda Networks, Inc.
Counting Ltd.
Google Inc.
InfoSum Ltd.
Keybase Inc.
Percona LLC
Pivotal Inc.
Stripe Inc.

178
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## Version 1.4.1 (2018-11-14)
Bugfixes:
- Fix TIME format for binary columns (#818)
- Fix handling of empty auth plugin names (#835)
- Fix caching_sha2_password with empty password (#826)
- Fix canceled context broke mysqlConn (#862)
- Fix OldAuthSwitchRequest support (#870)
- Fix Auth Response packet for cleartext password (#887)
## Version 1.4 (2018-06-03)
Changes:
- Documentation fixes (#530, #535, #567)
- Refactoring (#575, #579, #580, #581, #603, #615, #704)
- Cache column names (#444)
- Sort the DSN parameters in DSNs generated from a config (#637)
- Allow native password authentication by default (#644)
- Use the default port if it is missing in the DSN (#668)
- Removed the `strict` mode (#676)
- Do not query `max_allowed_packet` by default (#680)
- Dropped support Go 1.6 and lower (#696)
- Updated `ConvertValue()` to match the database/sql/driver implementation (#760)
- Document the usage of `0000-00-00T00:00:00` as the time.Time zero value (#783)
- Improved the compatibility of the authentication system (#807)
New Features:
- Multi-Results support (#537)
- `rejectReadOnly` DSN option (#604)
- `context.Context` support (#608, #612, #627, #761)
- Transaction isolation level support (#619, #744)
- Read-Only transactions support (#618, #634)
- `NewConfig` function which initializes a config with default values (#679)
- Implemented the `ColumnType` interfaces (#667, #724)
- Support for custom string types in `ConvertValue` (#623)
- Implemented `NamedValueChecker`, improving support for uint64 with high bit set (#690, #709, #710)
- `caching_sha2_password` authentication plugin support (#794, #800, #801, #802)
- Implemented `driver.SessionResetter` (#779)
- `sha256_password` authentication plugin support (#808)
Bugfixes:
- Use the DSN hostname as TLS default ServerName if `tls=true` (#564, #718)
- Fixed LOAD LOCAL DATA INFILE for empty files (#590)
- Removed columns definition cache since it sometimes cached invalid data (#592)
- Don't mutate registered TLS configs (#600)
- Make RegisterTLSConfig concurrency-safe (#613)
- Handle missing auth data in the handshake packet correctly (#646)
- Do not retry queries when data was written to avoid data corruption (#302, #736)
- Cache the connection pointer for error handling before invalidating it (#678)
- Fixed imports for appengine/cloudsql (#700)
- Fix sending STMT_LONG_DATA for 0 byte data (#734)
- Set correct capacity for []bytes read from length-encoded strings (#766)
- Make RegisterDial concurrency-safe (#773)
## Version 1.3 (2016-12-01)
Changes:
- Go 1.1 is no longer supported
- Use decimals fields in MySQL to format time types (#249)
- Buffer optimizations (#269)
- TLS ServerName defaults to the host (#283)
- Refactoring (#400, #410, #437)
- Adjusted documentation for second generation CloudSQL (#485)
- Documented DSN system var quoting rules (#502)
- Made statement.Close() calls idempotent to avoid errors in Go 1.6+ (#512)
New Features:
- Enable microsecond resolution on TIME, DATETIME and TIMESTAMP (#249)
- Support for returning table alias on Columns() (#289, #359, #382)
- Placeholder interpolation, can be actived with the DSN parameter `interpolateParams=true` (#309, #318, #490)
- Support for uint64 parameters with high bit set (#332, #345)
- Cleartext authentication plugin support (#327)
- Exported ParseDSN function and the Config struct (#403, #419, #429)
- Read / Write timeouts (#401)
- Support for JSON field type (#414)
- Support for multi-statements and multi-results (#411, #431)
- DSN parameter to set the driver-side max_allowed_packet value manually (#489)
- Native password authentication plugin support (#494, #524)
Bugfixes:
- Fixed handling of queries without columns and rows (#255)
- Fixed a panic when SetKeepAlive() failed (#298)
- Handle ERR packets while reading rows (#321)
- Fixed reading NULL length-encoded integers in MySQL 5.6+ (#349)
- Fixed absolute paths support in LOAD LOCAL DATA INFILE (#356)
- Actually zero out bytes in handshake response (#378)
- Fixed race condition in registering LOAD DATA INFILE handler (#383)
- Fixed tests with MySQL 5.7.9+ (#380)
- QueryUnescape TLS config names (#397)
- Fixed "broken pipe" error by writing to closed socket (#390)
- Fixed LOAD LOCAL DATA INFILE buffering (#424)
- Fixed parsing of floats into float64 when placeholders are used (#434)
- Fixed DSN tests with Go 1.7+ (#459)
- Handle ERR packets while waiting for EOF (#473)
- Invalidate connection on error while discarding additional results (#513)
- Allow terminating packets of length 0 (#516)
## Version 1.2 (2014-06-03)
Changes:
- We switched back to a "rolling release". `go get` installs the current master branch again
- Version v1 of the driver will not be maintained anymore. Go 1.0 is no longer supported by this driver
- Exported errors to allow easy checking from application code
- Enabled TCP Keepalives on TCP connections
- Optimized INFILE handling (better buffer size calculation, lazy init, ...)
- The DSN parser also checks for a missing separating slash
- Faster binary date / datetime to string formatting
- Also exported the MySQLWarning type
- mysqlConn.Close returns the first error encountered instead of ignoring all errors
- writePacket() automatically writes the packet size to the header
- readPacket() uses an iterative approach instead of the recursive approach to merge splitted packets
New Features:
- `RegisterDial` allows the usage of a custom dial function to establish the network connection
- Setting the connection collation is possible with the `collation` DSN parameter. This parameter should be preferred over the `charset` parameter
- Logging of critical errors is configurable with `SetLogger`
- Google CloudSQL support
Bugfixes:
- Allow more than 32 parameters in prepared statements
- Various old_password fixes
- Fixed TestConcurrent test to pass Go's race detection
- Fixed appendLengthEncodedInteger for large numbers
- Renamed readLengthEnodedString to readLengthEncodedString and skipLengthEnodedString to skipLengthEncodedString (fixed typo)
## Version 1.1 (2013-11-02)
Changes:
- Go-MySQL-Driver now requires Go 1.1
- Connections now use the collation `utf8_general_ci` by default. Adding `&charset=UTF8` to the DSN should not be necessary anymore
- Made closing rows and connections error tolerant. This allows for example deferring rows.Close() without checking for errors
- `[]byte(nil)` is now treated as a NULL value. Before, it was treated like an empty string / `[]byte("")`
- DSN parameter values must now be url.QueryEscape'ed. This allows text values to contain special characters, such as '&'.
- Use the IO buffer also for writing. This results in zero allocations (by the driver) for most queries
- Optimized the buffer for reading
- stmt.Query now caches column metadata
- New Logo
- Changed the copyright header to include all contributors
- Improved the LOAD INFILE documentation
- The driver struct is now exported to make the driver directly accessible
- Refactored the driver tests
- Added more benchmarks and moved all to a separate file
- Other small refactoring
New Features:
- Added *old_passwords* support: Required in some cases, but must be enabled by adding `allowOldPasswords=true` to the DSN since it is insecure
- Added a `clientFoundRows` parameter: Return the number of matching rows instead of the number of rows changed on UPDATEs
- Added TLS/SSL support: Use a TLS/SSL encrypted connection to the server. Custom TLS configs can be registered and used
Bugfixes:
- Fixed MySQL 4.1 support: MySQL 4.1 sends packets with lengths which differ from the specification
- Convert to DB timezone when inserting `time.Time`
- Splitted packets (more than 16MB) are now merged correctly
- Fixed false positive `io.EOF` errors when the data was fully read
- Avoid panics on reuse of closed connections
- Fixed empty string producing false nil values
- Fixed sign byte for positive TIME fields
## Version 1.0 (2013-05-14)
Initial Release

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# Contributing Guidelines
## Reporting Issues
Before creating a new Issue, please check first if a similar Issue [already exists](https://github.com/go-sql-driver/mysql/issues?state=open) or was [recently closed](https://github.com/go-sql-driver/mysql/issues?direction=desc&page=1&sort=updated&state=closed).
## Contributing Code
By contributing to this project, you share your code under the Mozilla Public License 2, as specified in the LICENSE file.
Don't forget to add yourself to the AUTHORS file.
### Code Review
Everyone is invited to review and comment on pull requests.
If it looks fine to you, comment with "LGTM" (Looks good to me).
If changes are required, notice the reviewers with "PTAL" (Please take another look) after committing the fixes.
Before merging the Pull Request, at least one [team member](https://github.com/go-sql-driver?tab=members) must have commented with "LGTM".
## Development Ideas
If you are looking for ideas for code contributions, please check our [Development Ideas](https://github.com/go-sql-driver/mysql/wiki/Development-Ideas) Wiki page.

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Mozilla Public License Version 2.0
==================================
1. Definitions
--------------
1.1. "Contributor"
means each individual or legal entity that creates, contributes to
the creation of, or owns Covered Software.
1.2. "Contributor Version"
means the combination of the Contributions of others (if any) used
by a Contributor and that particular Contributor's Contribution.
1.3. "Contribution"
means Covered Software of a particular Contributor.
1.4. "Covered Software"
means Source Code Form to which the initial Contributor has attached
the notice in Exhibit A, the Executable Form of such Source Code
Form, and Modifications of such Source Code Form, in each case
including portions thereof.
1.5. "Incompatible With Secondary Licenses"
means
(a) that the initial Contributor has attached the notice described
in Exhibit B to the Covered Software; or
(b) that the Covered Software was made available under the terms of
version 1.1 or earlier of the License, but not also under the
terms of a Secondary License.
1.6. "Executable Form"
means any form of the work other than Source Code Form.
1.7. "Larger Work"
means a work that combines Covered Software with other material, in
a separate file or files, that is not Covered Software.
1.8. "License"
means this document.
1.9. "Licensable"
means having the right to grant, to the maximum extent possible,
whether at the time of the initial grant or subsequently, any and
all of the rights conveyed by this License.
1.10. "Modifications"
means any of the following:
(a) any file in Source Code Form that results from an addition to,
deletion from, or modification of the contents of Covered
Software; or
(b) any new file in Source Code Form that contains any Covered
Software.
1.11. "Patent Claims" of a Contributor
means any patent claim(s), including without limitation, method,
process, and apparatus claims, in any patent Licensable by such
Contributor that would be infringed, but for the grant of the
License, by the making, using, selling, offering for sale, having
made, import, or transfer of either its Contributions or its
Contributor Version.
1.12. "Secondary License"
means either the GNU General Public License, Version 2.0, the GNU
Lesser General Public License, Version 2.1, the GNU Affero General
Public License, Version 3.0, or any later versions of those
licenses.
1.13. "Source Code Form"
means the form of the work preferred for making modifications.
1.14. "You" (or "Your")
means an individual or a legal entity exercising rights under this
License. For legal entities, "You" includes any entity that
controls, is controlled by, or is under common control with You. For
purposes of this definition, "control" means (a) the power, direct
or indirect, to cause the direction or management of such entity,
whether by contract or otherwise, or (b) ownership of more than
fifty percent (50%) of the outstanding shares or beneficial
ownership of such entity.
2. License Grants and Conditions
--------------------------------
2.1. Grants
Each Contributor hereby grants You a world-wide, royalty-free,
non-exclusive license:
(a) under intellectual property rights (other than patent or trademark)
Licensable by such Contributor to use, reproduce, make available,
modify, display, perform, distribute, and otherwise exploit its
Contributions, either on an unmodified basis, with Modifications, or
as part of a Larger Work; and
(b) under Patent Claims of such Contributor to make, use, sell, offer
for sale, have made, import, and otherwise transfer either its
Contributions or its Contributor Version.
2.2. Effective Date
The licenses granted in Section 2.1 with respect to any Contribution
become effective for each Contribution on the date the Contributor first
distributes such Contribution.
2.3. Limitations on Grant Scope
The licenses granted in this Section 2 are the only rights granted under
this License. No additional rights or licenses will be implied from the
distribution or licensing of Covered Software under this License.
Notwithstanding Section 2.1(b) above, no patent license is granted by a
Contributor:
(a) for any code that a Contributor has removed from Covered Software;
or
(b) for infringements caused by: (i) Your and any other third party's
modifications of Covered Software, or (ii) the combination of its
Contributions with other software (except as part of its Contributor
Version); or
(c) under Patent Claims infringed by Covered Software in the absence of
its Contributions.
This License does not grant any rights in the trademarks, service marks,
or logos of any Contributor (except as may be necessary to comply with
the notice requirements in Section 3.4).
2.4. Subsequent Licenses
No Contributor makes additional grants as a result of Your choice to
distribute the Covered Software under a subsequent version of this
License (see Section 10.2) or under the terms of a Secondary License (if
permitted under the terms of Section 3.3).
2.5. Representation
Each Contributor represents that the Contributor believes its
Contributions are its original creation(s) or it has sufficient rights
to grant the rights to its Contributions conveyed by this License.
2.6. Fair Use
This License is not intended to limit any rights You have under
applicable copyright doctrines of fair use, fair dealing, or other
equivalents.
2.7. Conditions
Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
in Section 2.1.
3. Responsibilities
-------------------
3.1. Distribution of Source Form
All distribution of Covered Software in Source Code Form, including any
Modifications that You create or to which You contribute, must be under
the terms of this License. You must inform recipients that the Source
Code Form of the Covered Software is governed by the terms of this
License, and how they can obtain a copy of this License. You may not
attempt to alter or restrict the recipients' rights in the Source Code
Form.
3.2. Distribution of Executable Form
If You distribute Covered Software in Executable Form then:
(a) such Covered Software must also be made available in Source Code
Form, as described in Section 3.1, and You must inform recipients of
the Executable Form how they can obtain a copy of such Source Code
Form by reasonable means in a timely manner, at a charge no more
than the cost of distribution to the recipient; and
(b) You may distribute such Executable Form under the terms of this
License, or sublicense it under different terms, provided that the
license for the Executable Form does not attempt to limit or alter
the recipients' rights in the Source Code Form under this License.
3.3. Distribution of a Larger Work
You may create and distribute a Larger Work under terms of Your choice,
provided that You also comply with the requirements of this License for
the Covered Software. If the Larger Work is a combination of Covered
Software with a work governed by one or more Secondary Licenses, and the
Covered Software is not Incompatible With Secondary Licenses, this
License permits You to additionally distribute such Covered Software
under the terms of such Secondary License(s), so that the recipient of
the Larger Work may, at their option, further distribute the Covered
Software under the terms of either this License or such Secondary
License(s).
3.4. Notices
You may not remove or alter the substance of any license notices
(including copyright notices, patent notices, disclaimers of warranty,
or limitations of liability) contained within the Source Code Form of
the Covered Software, except that You may alter any license notices to
the extent required to remedy known factual inaccuracies.
3.5. Application of Additional Terms
You may choose to offer, and to charge a fee for, warranty, support,
indemnity or liability obligations to one or more recipients of Covered
Software. However, You may do so only on Your own behalf, and not on
behalf of any Contributor. You must make it absolutely clear that any
such warranty, support, indemnity, or liability obligation is offered by
You alone, and You hereby agree to indemnify every Contributor for any
liability incurred by such Contributor as a result of warranty, support,
indemnity or liability terms You offer. You may include additional
disclaimers of warranty and limitations of liability specific to any
jurisdiction.
4. Inability to Comply Due to Statute or Regulation
---------------------------------------------------
If it is impossible for You to comply with any of the terms of this
License with respect to some or all of the Covered Software due to
statute, judicial order, or regulation then You must: (a) comply with
the terms of this License to the maximum extent possible; and (b)
describe the limitations and the code they affect. Such description must
be placed in a text file included with all distributions of the Covered
Software under this License. Except to the extent prohibited by statute
or regulation, such description must be sufficiently detailed for a
recipient of ordinary skill to be able to understand it.
5. Termination
--------------
5.1. The rights granted under this License will terminate automatically
if You fail to comply with any of its terms. However, if You become
compliant, then the rights granted under this License from a particular
Contributor are reinstated (a) provisionally, unless and until such
Contributor explicitly and finally terminates Your grants, and (b) on an
ongoing basis, if such Contributor fails to notify You of the
non-compliance by some reasonable means prior to 60 days after You have
come back into compliance. Moreover, Your grants from a particular
Contributor are reinstated on an ongoing basis if such Contributor
notifies You of the non-compliance by some reasonable means, this is the
first time You have received notice of non-compliance with this License
from such Contributor, and You become compliant prior to 30 days after
Your receipt of the notice.
5.2. If You initiate litigation against any entity by asserting a patent
infringement claim (excluding declaratory judgment actions,
counter-claims, and cross-claims) alleging that a Contributor Version
directly or indirectly infringes any patent, then the rights granted to
You by any and all Contributors for the Covered Software under Section
2.1 of this License shall terminate.
5.3. In the event of termination under Sections 5.1 or 5.2 above, all
end user license agreements (excluding distributors and resellers) which
have been validly granted by You or Your distributors under this License
prior to termination shall survive termination.
************************************************************************
* *
* 6. Disclaimer of Warranty *
* ------------------------- *
* *
* Covered Software is provided under this License on an "as is" *
* basis, without warranty of any kind, either expressed, implied, or *
* statutory, including, without limitation, warranties that the *
* Covered Software is free of defects, merchantable, fit for a *
* particular purpose or non-infringing. The entire risk as to the *
* quality and performance of the Covered Software is with You. *
* Should any Covered Software prove defective in any respect, You *
* (not any Contributor) assume the cost of any necessary servicing, *
* repair, or correction. This disclaimer of warranty constitutes an *
* essential part of this License. No use of any Covered Software is *
* authorized under this License except under this disclaimer. *
* *
************************************************************************
************************************************************************
* *
* 7. Limitation of Liability *
* -------------------------- *
* *
* Under no circumstances and under no legal theory, whether tort *
* (including negligence), contract, or otherwise, shall any *
* Contributor, or anyone who distributes Covered Software as *
* permitted above, be liable to You for any direct, indirect, *
* special, incidental, or consequential damages of any character *
* including, without limitation, damages for lost profits, loss of *
* goodwill, work stoppage, computer failure or malfunction, or any *
* and all other commercial damages or losses, even if such party *
* shall have been informed of the possibility of such damages. This *
* limitation of liability shall not apply to liability for death or *
* personal injury resulting from such party's negligence to the *
* extent applicable law prohibits such limitation. Some *
* jurisdictions do not allow the exclusion or limitation of *
* incidental or consequential damages, so this exclusion and *
* limitation may not apply to You. *
* *
************************************************************************
8. Litigation
-------------
Any litigation relating to this License may be brought only in the
courts of a jurisdiction where the defendant maintains its principal
place of business and such litigation shall be governed by laws of that
jurisdiction, without reference to its conflict-of-law provisions.
Nothing in this Section shall prevent a party's ability to bring
cross-claims or counter-claims.
9. Miscellaneous
----------------
This License represents the complete agreement concerning the subject
matter hereof. If any provision of this License is held to be
unenforceable, such provision shall be reformed only to the extent
necessary to make it enforceable. Any law or regulation which provides
that the language of a contract shall be construed against the drafter
shall not be used to construe this License against a Contributor.
10. Versions of the License
---------------------------
10.1. New Versions
Mozilla Foundation is the license steward. Except as provided in Section
10.3, no one other than the license steward has the right to modify or
publish new versions of this License. Each version will be given a
distinguishing version number.
10.2. Effect of New Versions
You may distribute the Covered Software under the terms of the version
of the License under which You originally received the Covered Software,
or under the terms of any subsequent version published by the license
steward.
10.3. Modified Versions
If you create software not governed by this License, and you want to
create a new license for such software, you may create and use a
modified version of this License if you rename the license and remove
any references to the name of the license steward (except to note that
such modified license differs from this License).
10.4. Distributing Source Code Form that is Incompatible With Secondary
Licenses
If You choose to distribute Source Code Form that is Incompatible With
Secondary Licenses under the terms of this version of the License, the
notice described in Exhibit B of this License must be attached.
Exhibit A - Source Code Form License Notice
-------------------------------------------
This Source Code Form is subject to the terms of the Mozilla Public
License, v. 2.0. If a copy of the MPL was not distributed with this
file, You can obtain one at http://mozilla.org/MPL/2.0/.
If it is not possible or desirable to put the notice in a particular
file, then You may include the notice in a location (such as a LICENSE
file in a relevant directory) where a recipient would be likely to look
for such a notice.
You may add additional accurate notices of copyright ownership.
Exhibit B - "Incompatible With Secondary Licenses" Notice
---------------------------------------------------------
This Source Code Form is "Incompatible With Secondary Licenses", as
defined by the Mozilla Public License, v. 2.0.

490
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@ -1,490 +0,0 @@
# Go-MySQL-Driver
A MySQL-Driver for Go's [database/sql](https://golang.org/pkg/database/sql/) package
![Go-MySQL-Driver logo](https://raw.github.com/wiki/go-sql-driver/mysql/gomysql_m.png "Golang Gopher holding the MySQL Dolphin")
---------------------------------------
* [Features](#features)
* [Requirements](#requirements)
* [Installation](#installation)
* [Usage](#usage)
* [DSN (Data Source Name)](#dsn-data-source-name)
* [Password](#password)
* [Protocol](#protocol)
* [Address](#address)
* [Parameters](#parameters)
* [Examples](#examples)
* [Connection pool and timeouts](#connection-pool-and-timeouts)
* [context.Context Support](#contextcontext-support)
* [ColumnType Support](#columntype-support)
* [LOAD DATA LOCAL INFILE support](#load-data-local-infile-support)
* [time.Time support](#timetime-support)
* [Unicode support](#unicode-support)
* [Testing / Development](#testing--development)
* [License](#license)
---------------------------------------
## Features
* Lightweight and [fast](https://github.com/go-sql-driver/sql-benchmark "golang MySQL-Driver performance")
* Native Go implementation. No C-bindings, just pure Go
* Connections over TCP/IPv4, TCP/IPv6, Unix domain sockets or [custom protocols](https://godoc.org/github.com/go-sql-driver/mysql#DialFunc)
* Automatic handling of broken connections
* Automatic Connection Pooling *(by database/sql package)*
* Supports queries larger than 16MB
* Full [`sql.RawBytes`](https://golang.org/pkg/database/sql/#RawBytes) support.
* Intelligent `LONG DATA` handling in prepared statements
* Secure `LOAD DATA LOCAL INFILE` support with file Whitelisting and `io.Reader` support
* Optional `time.Time` parsing
* Optional placeholder interpolation
## Requirements
* Go 1.7 or higher. We aim to support the 3 latest versions of Go.
* MySQL (4.1+), MariaDB, Percona Server, Google CloudSQL or Sphinx (2.2.3+)
---------------------------------------
## Installation
Simple install the package to your [$GOPATH](https://github.com/golang/go/wiki/GOPATH "GOPATH") with the [go tool](https://golang.org/cmd/go/ "go command") from shell:
```bash
$ go get -u github.com/go-sql-driver/mysql
```
Make sure [Git is installed](https://git-scm.com/downloads) on your machine and in your system's `PATH`.
## Usage
_Go MySQL Driver_ is an implementation of Go's `database/sql/driver` interface. You only need to import the driver and can use the full [`database/sql`](https://golang.org/pkg/database/sql/) API then.
Use `mysql` as `driverName` and a valid [DSN](#dsn-data-source-name) as `dataSourceName`:
```go
import "database/sql"
import _ "github.com/go-sql-driver/mysql"
db, err := sql.Open("mysql", "user:password@/dbname")
```
[Examples are available in our Wiki](https://github.com/go-sql-driver/mysql/wiki/Examples "Go-MySQL-Driver Examples").
### DSN (Data Source Name)
The Data Source Name has a common format, like e.g. [PEAR DB](http://pear.php.net/manual/en/package.database.db.intro-dsn.php) uses it, but without type-prefix (optional parts marked by squared brackets):
```
[username[:password]@][protocol[(address)]]/dbname[?param1=value1&...&paramN=valueN]
```
A DSN in its fullest form:
```
username:password@protocol(address)/dbname?param=value
```
Except for the databasename, all values are optional. So the minimal DSN is:
```
/dbname
```
If you do not want to preselect a database, leave `dbname` empty:
```
/
```
This has the same effect as an empty DSN string:
```
```
Alternatively, [Config.FormatDSN](https://godoc.org/github.com/go-sql-driver/mysql#Config.FormatDSN) can be used to create a DSN string by filling a struct.
#### Password
Passwords can consist of any character. Escaping is **not** necessary.
#### Protocol
See [net.Dial](https://golang.org/pkg/net/#Dial) for more information which networks are available.
In general you should use an Unix domain socket if available and TCP otherwise for best performance.
#### Address
For TCP and UDP networks, addresses have the form `host[:port]`.
If `port` is omitted, the default port will be used.
If `host` is a literal IPv6 address, it must be enclosed in square brackets.
The functions [net.JoinHostPort](https://golang.org/pkg/net/#JoinHostPort) and [net.SplitHostPort](https://golang.org/pkg/net/#SplitHostPort) manipulate addresses in this form.
For Unix domain sockets the address is the absolute path to the MySQL-Server-socket, e.g. `/var/run/mysqld/mysqld.sock` or `/tmp/mysql.sock`.
#### Parameters
*Parameters are case-sensitive!*
Notice that any of `true`, `TRUE`, `True` or `1` is accepted to stand for a true boolean value. Not surprisingly, false can be specified as any of: `false`, `FALSE`, `False` or `0`.
##### `allowAllFiles`
```
Type: bool
Valid Values: true, false
Default: false
```
`allowAllFiles=true` disables the file Whitelist for `LOAD DATA LOCAL INFILE` and allows *all* files.
[*Might be insecure!*](http://dev.mysql.com/doc/refman/5.7/en/load-data-local.html)
##### `allowCleartextPasswords`
```
Type: bool
Valid Values: true, false
Default: false
```
`allowCleartextPasswords=true` allows using the [cleartext client side plugin](http://dev.mysql.com/doc/en/cleartext-authentication-plugin.html) if required by an account, such as one defined with the [PAM authentication plugin](http://dev.mysql.com/doc/en/pam-authentication-plugin.html). Sending passwords in clear text may be a security problem in some configurations. To avoid problems if there is any possibility that the password would be intercepted, clients should connect to MySQL Server using a method that protects the password. Possibilities include [TLS / SSL](#tls), IPsec, or a private network.
##### `allowNativePasswords`
```
Type: bool
Valid Values: true, false
Default: true
```
`allowNativePasswords=false` disallows the usage of MySQL native password method.
##### `allowOldPasswords`
```
Type: bool
Valid Values: true, false
Default: false
```
`allowOldPasswords=true` allows the usage of the insecure old password method. This should be avoided, but is necessary in some cases. See also [the old_passwords wiki page](https://github.com/go-sql-driver/mysql/wiki/old_passwords).
##### `charset`
```
Type: string
Valid Values: <name>
Default: none
```
Sets the charset used for client-server interaction (`"SET NAMES <value>"`). If multiple charsets are set (separated by a comma), the following charset is used if setting the charset failes. This enables for example support for `utf8mb4` ([introduced in MySQL 5.5.3](http://dev.mysql.com/doc/refman/5.5/en/charset-unicode-utf8mb4.html)) with fallback to `utf8` for older servers (`charset=utf8mb4,utf8`).
Usage of the `charset` parameter is discouraged because it issues additional queries to the server.
Unless you need the fallback behavior, please use `collation` instead.
##### `collation`
```
Type: string
Valid Values: <name>
Default: utf8_general_ci
```
Sets the collation used for client-server interaction on connection. In contrast to `charset`, `collation` does not issue additional queries. If the specified collation is unavailable on the target server, the connection will fail.
A list of valid charsets for a server is retrievable with `SHOW COLLATION`.
##### `clientFoundRows`
```
Type: bool
Valid Values: true, false
Default: false
```
`clientFoundRows=true` causes an UPDATE to return the number of matching rows instead of the number of rows changed.
##### `columnsWithAlias`
```
Type: bool
Valid Values: true, false
Default: false
```
When `columnsWithAlias` is true, calls to `sql.Rows.Columns()` will return the table alias and the column name separated by a dot. For example:
```
SELECT u.id FROM users as u
```
will return `u.id` instead of just `id` if `columnsWithAlias=true`.
##### `interpolateParams`
```
Type: bool
Valid Values: true, false
Default: false
```
If `interpolateParams` is true, placeholders (`?`) in calls to `db.Query()` and `db.Exec()` are interpolated into a single query string with given parameters. This reduces the number of roundtrips, since the driver has to prepare a statement, execute it with given parameters and close the statement again with `interpolateParams=false`.
*This can not be used together with the multibyte encodings BIG5, CP932, GB2312, GBK or SJIS. These are blacklisted as they may [introduce a SQL injection vulnerability](http://stackoverflow.com/a/12118602/3430118)!*
##### `loc`
```
Type: string
Valid Values: <escaped name>
Default: UTC
```
Sets the location for time.Time values (when using `parseTime=true`). *"Local"* sets the system's location. See [time.LoadLocation](https://golang.org/pkg/time/#LoadLocation) for details.
Note that this sets the location for time.Time values but does not change MySQL's [time_zone setting](https://dev.mysql.com/doc/refman/5.5/en/time-zone-support.html). For that see the [time_zone system variable](#system-variables), which can also be set as a DSN parameter.
Please keep in mind, that param values must be [url.QueryEscape](https://golang.org/pkg/net/url/#QueryEscape)'ed. Alternatively you can manually replace the `/` with `%2F`. For example `US/Pacific` would be `loc=US%2FPacific`.
##### `maxAllowedPacket`
```
Type: decimal number
Default: 4194304
```
Max packet size allowed in bytes. The default value is 4 MiB and should be adjusted to match the server settings. `maxAllowedPacket=0` can be used to automatically fetch the `max_allowed_packet` variable from server *on every connection*.
##### `multiStatements`
```
Type: bool
Valid Values: true, false
Default: false
```
Allow multiple statements in one query. While this allows batch queries, it also greatly increases the risk of SQL injections. Only the result of the first query is returned, all other results are silently discarded.
When `multiStatements` is used, `?` parameters must only be used in the first statement.
##### `parseTime`
```
Type: bool
Valid Values: true, false
Default: false
```
`parseTime=true` changes the output type of `DATE` and `DATETIME` values to `time.Time` instead of `[]byte` / `string`
The date or datetime like `0000-00-00 00:00:00` is converted into zero value of `time.Time`.
##### `readTimeout`
```
Type: duration
Default: 0
```
I/O read timeout. The value must be a decimal number with a unit suffix (*"ms"*, *"s"*, *"m"*, *"h"*), such as *"30s"*, *"0.5m"* or *"1m30s"*.
##### `rejectReadOnly`
```
Type: bool
Valid Values: true, false
Default: false
```
`rejectReadOnly=true` causes the driver to reject read-only connections. This
is for a possible race condition during an automatic failover, where the mysql
client gets connected to a read-only replica after the failover.
Note that this should be a fairly rare case, as an automatic failover normally
happens when the primary is down, and the race condition shouldn't happen
unless it comes back up online as soon as the failover is kicked off. On the
other hand, when this happens, a MySQL application can get stuck on a
read-only connection until restarted. It is however fairly easy to reproduce,
for example, using a manual failover on AWS Aurora's MySQL-compatible cluster.
If you are not relying on read-only transactions to reject writes that aren't
supposed to happen, setting this on some MySQL providers (such as AWS Aurora)
is safer for failovers.
Note that ERROR 1290 can be returned for a `read-only` server and this option will
cause a retry for that error. However the same error number is used for some
other cases. You should ensure your application will never cause an ERROR 1290
except for `read-only` mode when enabling this option.
##### `serverPubKey`
```
Type: string
Valid Values: <name>
Default: none
```
Server public keys can be registered with [`mysql.RegisterServerPubKey`](https://godoc.org/github.com/go-sql-driver/mysql#RegisterServerPubKey), which can then be used by the assigned name in the DSN.
Public keys are used to transmit encrypted data, e.g. for authentication.
If the server's public key is known, it should be set manually to avoid expensive and potentially insecure transmissions of the public key from the server to the client each time it is required.
##### `timeout`
```
Type: duration
Default: OS default
```
Timeout for establishing connections, aka dial timeout. The value must be a decimal number with a unit suffix (*"ms"*, *"s"*, *"m"*, *"h"*), such as *"30s"*, *"0.5m"* or *"1m30s"*.
##### `tls`
```
Type: bool / string
Valid Values: true, false, skip-verify, <name>
Default: false
```
`tls=true` enables TLS / SSL encrypted connection to the server. Use `skip-verify` if you want to use a self-signed or invalid certificate (server side). Use a custom value registered with [`mysql.RegisterTLSConfig`](https://godoc.org/github.com/go-sql-driver/mysql#RegisterTLSConfig).
##### `writeTimeout`
```
Type: duration
Default: 0
```
I/O write timeout. The value must be a decimal number with a unit suffix (*"ms"*, *"s"*, *"m"*, *"h"*), such as *"30s"*, *"0.5m"* or *"1m30s"*.
##### System Variables
Any other parameters are interpreted as system variables:
* `<boolean_var>=<value>`: `SET <boolean_var>=<value>`
* `<enum_var>=<value>`: `SET <enum_var>=<value>`
* `<string_var>=%27<value>%27`: `SET <string_var>='<value>'`
Rules:
* The values for string variables must be quoted with `'`.
* The values must also be [url.QueryEscape](http://golang.org/pkg/net/url/#QueryEscape)'ed!
(which implies values of string variables must be wrapped with `%27`).
Examples:
* `autocommit=1`: `SET autocommit=1`
* [`time_zone=%27Europe%2FParis%27`](https://dev.mysql.com/doc/refman/5.5/en/time-zone-support.html): `SET time_zone='Europe/Paris'`
* [`tx_isolation=%27REPEATABLE-READ%27`](https://dev.mysql.com/doc/refman/5.5/en/server-system-variables.html#sysvar_tx_isolation): `SET tx_isolation='REPEATABLE-READ'`
#### Examples
```
user@unix(/path/to/socket)/dbname
```
```
root:pw@unix(/tmp/mysql.sock)/myDatabase?loc=Local
```
```
user:password@tcp(localhost:5555)/dbname?tls=skip-verify&autocommit=true
```
Treat warnings as errors by setting the system variable [`sql_mode`](https://dev.mysql.com/doc/refman/5.7/en/sql-mode.html):
```
user:password@/dbname?sql_mode=TRADITIONAL
```
TCP via IPv6:
```
user:password@tcp([de:ad:be:ef::ca:fe]:80)/dbname?timeout=90s&collation=utf8mb4_unicode_ci
```
TCP on a remote host, e.g. Amazon RDS:
```
id:password@tcp(your-amazonaws-uri.com:3306)/dbname
```
Google Cloud SQL on App Engine (First Generation MySQL Server):
```
user@cloudsql(project-id:instance-name)/dbname
```
Google Cloud SQL on App Engine (Second Generation MySQL Server):
```
user@cloudsql(project-id:regionname:instance-name)/dbname
```
TCP using default port (3306) on localhost:
```
user:password@tcp/dbname?charset=utf8mb4,utf8&sys_var=esc%40ped
```
Use the default protocol (tcp) and host (localhost:3306):
```
user:password@/dbname
```
No Database preselected:
```
user:password@/
```
### Connection pool and timeouts
The connection pool is managed by Go's database/sql package. For details on how to configure the size of the pool and how long connections stay in the pool see `*DB.SetMaxOpenConns`, `*DB.SetMaxIdleConns`, and `*DB.SetConnMaxLifetime` in the [database/sql documentation](https://golang.org/pkg/database/sql/). The read, write, and dial timeouts for each individual connection are configured with the DSN parameters [`readTimeout`](#readtimeout), [`writeTimeout`](#writetimeout), and [`timeout`](#timeout), respectively.
## `ColumnType` Support
This driver supports the [`ColumnType` interface](https://golang.org/pkg/database/sql/#ColumnType) introduced in Go 1.8, with the exception of [`ColumnType.Length()`](https://golang.org/pkg/database/sql/#ColumnType.Length), which is currently not supported.
## `context.Context` Support
Go 1.8 added `database/sql` support for `context.Context`. This driver supports query timeouts and cancellation via contexts.
See [context support in the database/sql package](https://golang.org/doc/go1.8#database_sql) for more details.
### `LOAD DATA LOCAL INFILE` support
For this feature you need direct access to the package. Therefore you must change the import path (no `_`):
```go
import "github.com/go-sql-driver/mysql"
```
Files must be whitelisted by registering them with `mysql.RegisterLocalFile(filepath)` (recommended) or the Whitelist check must be deactivated by using the DSN parameter `allowAllFiles=true` ([*Might be insecure!*](http://dev.mysql.com/doc/refman/5.7/en/load-data-local.html)).
To use a `io.Reader` a handler function must be registered with `mysql.RegisterReaderHandler(name, handler)` which returns a `io.Reader` or `io.ReadCloser`. The Reader is available with the filepath `Reader::<name>` then. Choose different names for different handlers and `DeregisterReaderHandler` when you don't need it anymore.
See the [godoc of Go-MySQL-Driver](https://godoc.org/github.com/go-sql-driver/mysql "golang mysql driver documentation") for details.
### `time.Time` support
The default internal output type of MySQL `DATE` and `DATETIME` values is `[]byte` which allows you to scan the value into a `[]byte`, `string` or `sql.RawBytes` variable in your program.
However, many want to scan MySQL `DATE` and `DATETIME` values into `time.Time` variables, which is the logical opposite in Go to `DATE` and `DATETIME` in MySQL. You can do that by changing the internal output type from `[]byte` to `time.Time` with the DSN parameter `parseTime=true`. You can set the default [`time.Time` location](https://golang.org/pkg/time/#Location) with the `loc` DSN parameter.
**Caution:** As of Go 1.1, this makes `time.Time` the only variable type you can scan `DATE` and `DATETIME` values into. This breaks for example [`sql.RawBytes` support](https://github.com/go-sql-driver/mysql/wiki/Examples#rawbytes).
Alternatively you can use the [`NullTime`](https://godoc.org/github.com/go-sql-driver/mysql#NullTime) type as the scan destination, which works with both `time.Time` and `string` / `[]byte`.
### Unicode support
Since version 1.1 Go-MySQL-Driver automatically uses the collation `utf8_general_ci` by default.
Other collations / charsets can be set using the [`collation`](#collation) DSN parameter.
Version 1.0 of the driver recommended adding `&charset=utf8` (alias for `SET NAMES utf8`) to the DSN to enable proper UTF-8 support. This is not necessary anymore. The [`collation`](#collation) parameter should be preferred to set another collation / charset than the default.
See http://dev.mysql.com/doc/refman/5.7/en/charset-unicode.html for more details on MySQL's Unicode support.
## Testing / Development
To run the driver tests you may need to adjust the configuration. See the [Testing Wiki-Page](https://github.com/go-sql-driver/mysql/wiki/Testing "Testing") for details.
Go-MySQL-Driver is not feature-complete yet. Your help is very appreciated.
If you want to contribute, you can work on an [open issue](https://github.com/go-sql-driver/mysql/issues?state=open) or review a [pull request](https://github.com/go-sql-driver/mysql/pulls).
See the [Contribution Guidelines](https://github.com/go-sql-driver/mysql/blob/master/CONTRIBUTING.md) for details.
---------------------------------------
## License
Go-MySQL-Driver is licensed under the [Mozilla Public License Version 2.0](https://raw.github.com/go-sql-driver/mysql/master/LICENSE)
Mozilla summarizes the license scope as follows:
> MPL: The copyleft applies to any files containing MPLed code.
That means:
* You can **use** the **unchanged** source code both in private and commercially.
* When distributing, you **must publish** the source code of any **changed files** licensed under the MPL 2.0 under a) the MPL 2.0 itself or b) a compatible license (e.g. GPL 3.0 or Apache License 2.0).
* You **needn't publish** the source code of your library as long as the files licensed under the MPL 2.0 are **unchanged**.
Please read the [MPL 2.0 FAQ](https://www.mozilla.org/en-US/MPL/2.0/FAQ/) if you have further questions regarding the license.
You can read the full terms here: [LICENSE](https://raw.github.com/go-sql-driver/mysql/master/LICENSE).
![Go Gopher and MySQL Dolphin](https://raw.github.com/wiki/go-sql-driver/mysql/go-mysql-driver_m.jpg "Golang Gopher transporting the MySQL Dolphin in a wheelbarrow")

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// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2013 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
// +build appengine
package mysql
import (
"google.golang.org/appengine/cloudsql"
)
func init() {
RegisterDial("cloudsql", cloudsql.Dial)
}

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// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2018 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"crypto/rand"
"crypto/rsa"
"crypto/sha1"
"crypto/sha256"
"crypto/x509"
"encoding/pem"
"sync"
)
// server pub keys registry
var (
serverPubKeyLock sync.RWMutex
serverPubKeyRegistry map[string]*rsa.PublicKey
)
// RegisterServerPubKey registers a server RSA public key which can be used to
// send data in a secure manner to the server without receiving the public key
// in a potentially insecure way from the server first.
// Registered keys can afterwards be used adding serverPubKey=<name> to the DSN.
//
// Note: The provided rsa.PublicKey instance is exclusively owned by the driver
// after registering it and may not be modified.
//
// data, err := ioutil.ReadFile("mykey.pem")
// if err != nil {
// log.Fatal(err)
// }
//
// block, _ := pem.Decode(data)
// if block == nil || block.Type != "PUBLIC KEY" {
// log.Fatal("failed to decode PEM block containing public key")
// }
//
// pub, err := x509.ParsePKIXPublicKey(block.Bytes)
// if err != nil {
// log.Fatal(err)
// }
//
// if rsaPubKey, ok := pub.(*rsa.PublicKey); ok {
// mysql.RegisterServerPubKey("mykey", rsaPubKey)
// } else {
// log.Fatal("not a RSA public key")
// }
//
func RegisterServerPubKey(name string, pubKey *rsa.PublicKey) {
serverPubKeyLock.Lock()
if serverPubKeyRegistry == nil {
serverPubKeyRegistry = make(map[string]*rsa.PublicKey)
}
serverPubKeyRegistry[name] = pubKey
serverPubKeyLock.Unlock()
}
// DeregisterServerPubKey removes the public key registered with the given name.
func DeregisterServerPubKey(name string) {
serverPubKeyLock.Lock()
if serverPubKeyRegistry != nil {
delete(serverPubKeyRegistry, name)
}
serverPubKeyLock.Unlock()
}
func getServerPubKey(name string) (pubKey *rsa.PublicKey) {
serverPubKeyLock.RLock()
if v, ok := serverPubKeyRegistry[name]; ok {
pubKey = v
}
serverPubKeyLock.RUnlock()
return
}
// Hash password using pre 4.1 (old password) method
// https://github.com/atcurtis/mariadb/blob/master/mysys/my_rnd.c
type myRnd struct {
seed1, seed2 uint32
}
const myRndMaxVal = 0x3FFFFFFF
// Pseudo random number generator
func newMyRnd(seed1, seed2 uint32) *myRnd {
return &myRnd{
seed1: seed1 % myRndMaxVal,
seed2: seed2 % myRndMaxVal,
}
}
// Tested to be equivalent to MariaDB's floating point variant
// http://play.golang.org/p/QHvhd4qved
// http://play.golang.org/p/RG0q4ElWDx
func (r *myRnd) NextByte() byte {
r.seed1 = (r.seed1*3 + r.seed2) % myRndMaxVal
r.seed2 = (r.seed1 + r.seed2 + 33) % myRndMaxVal
return byte(uint64(r.seed1) * 31 / myRndMaxVal)
}
// Generate binary hash from byte string using insecure pre 4.1 method
func pwHash(password []byte) (result [2]uint32) {
var add uint32 = 7
var tmp uint32
result[0] = 1345345333
result[1] = 0x12345671
for _, c := range password {
// skip spaces and tabs in password
if c == ' ' || c == '\t' {
continue
}
tmp = uint32(c)
result[0] ^= (((result[0] & 63) + add) * tmp) + (result[0] << 8)
result[1] += (result[1] << 8) ^ result[0]
add += tmp
}
// Remove sign bit (1<<31)-1)
result[0] &= 0x7FFFFFFF
result[1] &= 0x7FFFFFFF
return
}
// Hash password using insecure pre 4.1 method
func scrambleOldPassword(scramble []byte, password string) []byte {
if len(password) == 0 {
return nil
}
scramble = scramble[:8]
hashPw := pwHash([]byte(password))
hashSc := pwHash(scramble)
r := newMyRnd(hashPw[0]^hashSc[0], hashPw[1]^hashSc[1])
var out [8]byte
for i := range out {
out[i] = r.NextByte() + 64
}
mask := r.NextByte()
for i := range out {
out[i] ^= mask
}
return out[:]
}
// Hash password using 4.1+ method (SHA1)
func scramblePassword(scramble []byte, password string) []byte {
if len(password) == 0 {
return nil
}
// stage1Hash = SHA1(password)
crypt := sha1.New()
crypt.Write([]byte(password))
stage1 := crypt.Sum(nil)
// scrambleHash = SHA1(scramble + SHA1(stage1Hash))
// inner Hash
crypt.Reset()
crypt.Write(stage1)
hash := crypt.Sum(nil)
// outer Hash
crypt.Reset()
crypt.Write(scramble)
crypt.Write(hash)
scramble = crypt.Sum(nil)
// token = scrambleHash XOR stage1Hash
for i := range scramble {
scramble[i] ^= stage1[i]
}
return scramble
}
// Hash password using MySQL 8+ method (SHA256)
func scrambleSHA256Password(scramble []byte, password string) []byte {
if len(password) == 0 {
return nil
}
// XOR(SHA256(password), SHA256(SHA256(SHA256(password)), scramble))
crypt := sha256.New()
crypt.Write([]byte(password))
message1 := crypt.Sum(nil)
crypt.Reset()
crypt.Write(message1)
message1Hash := crypt.Sum(nil)
crypt.Reset()
crypt.Write(message1Hash)
crypt.Write(scramble)
message2 := crypt.Sum(nil)
for i := range message1 {
message1[i] ^= message2[i]
}
return message1
}
func encryptPassword(password string, seed []byte, pub *rsa.PublicKey) ([]byte, error) {
plain := make([]byte, len(password)+1)
copy(plain, password)
for i := range plain {
j := i % len(seed)
plain[i] ^= seed[j]
}
sha1 := sha1.New()
return rsa.EncryptOAEP(sha1, rand.Reader, pub, plain, nil)
}
func (mc *mysqlConn) sendEncryptedPassword(seed []byte, pub *rsa.PublicKey) error {
enc, err := encryptPassword(mc.cfg.Passwd, seed, pub)
if err != nil {
return err
}
return mc.writeAuthSwitchPacket(enc)
}
func (mc *mysqlConn) auth(authData []byte, plugin string) ([]byte, error) {
switch plugin {
case "caching_sha2_password":
authResp := scrambleSHA256Password(authData, mc.cfg.Passwd)
return authResp, nil
case "mysql_old_password":
if !mc.cfg.AllowOldPasswords {
return nil, ErrOldPassword
}
// Note: there are edge cases where this should work but doesn't;
// this is currently "wontfix":
// https://github.com/go-sql-driver/mysql/issues/184
authResp := append(scrambleOldPassword(authData[:8], mc.cfg.Passwd), 0)
return authResp, nil
case "mysql_clear_password":
if !mc.cfg.AllowCleartextPasswords {
return nil, ErrCleartextPassword
}
// http://dev.mysql.com/doc/refman/5.7/en/cleartext-authentication-plugin.html
// http://dev.mysql.com/doc/refman/5.7/en/pam-authentication-plugin.html
return append([]byte(mc.cfg.Passwd), 0), nil
case "mysql_native_password":
if !mc.cfg.AllowNativePasswords {
return nil, ErrNativePassword
}
// https://dev.mysql.com/doc/internals/en/secure-password-authentication.html
// Native password authentication only need and will need 20-byte challenge.
authResp := scramblePassword(authData[:20], mc.cfg.Passwd)
return authResp, nil
case "sha256_password":
if len(mc.cfg.Passwd) == 0 {
return []byte{0}, nil
}
if mc.cfg.tls != nil || mc.cfg.Net == "unix" {
// write cleartext auth packet
return append([]byte(mc.cfg.Passwd), 0), nil
}
pubKey := mc.cfg.pubKey
if pubKey == nil {
// request public key from server
return []byte{1}, nil
}
// encrypted password
enc, err := encryptPassword(mc.cfg.Passwd, authData, pubKey)
return enc, err
default:
errLog.Print("unknown auth plugin:", plugin)
return nil, ErrUnknownPlugin
}
}
func (mc *mysqlConn) handleAuthResult(oldAuthData []byte, plugin string) error {
// Read Result Packet
authData, newPlugin, err := mc.readAuthResult()
if err != nil {
return err
}
// handle auth plugin switch, if requested
if newPlugin != "" {
// If CLIENT_PLUGIN_AUTH capability is not supported, no new cipher is
// sent and we have to keep using the cipher sent in the init packet.
if authData == nil {
authData = oldAuthData
} else {
// copy data from read buffer to owned slice
copy(oldAuthData, authData)
}
plugin = newPlugin
authResp, err := mc.auth(authData, plugin)
if err != nil {
return err
}
if err = mc.writeAuthSwitchPacket(authResp); err != nil {
return err
}
// Read Result Packet
authData, newPlugin, err = mc.readAuthResult()
if err != nil {
return err
}
// Do not allow to change the auth plugin more than once
if newPlugin != "" {
return ErrMalformPkt
}
}
switch plugin {
// https://insidemysql.com/preparing-your-community-connector-for-mysql-8-part-2-sha256/
case "caching_sha2_password":
switch len(authData) {
case 0:
return nil // auth successful
case 1:
switch authData[0] {
case cachingSha2PasswordFastAuthSuccess:
if err = mc.readResultOK(); err == nil {
return nil // auth successful
}
case cachingSha2PasswordPerformFullAuthentication:
if mc.cfg.tls != nil || mc.cfg.Net == "unix" {
// write cleartext auth packet
err = mc.writeAuthSwitchPacket(append([]byte(mc.cfg.Passwd), 0))
if err != nil {
return err
}
} else {
pubKey := mc.cfg.pubKey
if pubKey == nil {
// request public key from server
data := mc.buf.takeSmallBuffer(4 + 1)
data[4] = cachingSha2PasswordRequestPublicKey
mc.writePacket(data)
// parse public key
data, err := mc.readPacket()
if err != nil {
return err
}
block, _ := pem.Decode(data[1:])
pkix, err := x509.ParsePKIXPublicKey(block.Bytes)
if err != nil {
return err
}
pubKey = pkix.(*rsa.PublicKey)
}
// send encrypted password
err = mc.sendEncryptedPassword(oldAuthData, pubKey)
if err != nil {
return err
}
}
return mc.readResultOK()
default:
return ErrMalformPkt
}
default:
return ErrMalformPkt
}
case "sha256_password":
switch len(authData) {
case 0:
return nil // auth successful
default:
block, _ := pem.Decode(authData)
pub, err := x509.ParsePKIXPublicKey(block.Bytes)
if err != nil {
return err
}
// send encrypted password
err = mc.sendEncryptedPassword(oldAuthData, pub.(*rsa.PublicKey))
if err != nil {
return err
}
return mc.readResultOK()
}
default:
return nil // auth successful
}
return err
}

147
vendor/github.com/go-sql-driver/mysql/buffer.go generated vendored
View File

@ -1,147 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2013 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"io"
"net"
"time"
)
const defaultBufSize = 4096
// A buffer which is used for both reading and writing.
// This is possible since communication on each connection is synchronous.
// In other words, we can't write and read simultaneously on the same connection.
// The buffer is similar to bufio.Reader / Writer but zero-copy-ish
// Also highly optimized for this particular use case.
type buffer struct {
buf []byte
nc net.Conn
idx int
length int
timeout time.Duration
}
func newBuffer(nc net.Conn) buffer {
var b [defaultBufSize]byte
return buffer{
buf: b[:],
nc: nc,
}
}
// fill reads into the buffer until at least _need_ bytes are in it
func (b *buffer) fill(need int) error {
n := b.length
// move existing data to the beginning
if n > 0 && b.idx > 0 {
copy(b.buf[0:n], b.buf[b.idx:])
}
// grow buffer if necessary
// TODO: let the buffer shrink again at some point
// Maybe keep the org buf slice and swap back?
if need > len(b.buf) {
// Round up to the next multiple of the default size
newBuf := make([]byte, ((need/defaultBufSize)+1)*defaultBufSize)
copy(newBuf, b.buf)
b.buf = newBuf
}
b.idx = 0
for {
if b.timeout > 0 {
if err := b.nc.SetReadDeadline(time.Now().Add(b.timeout)); err != nil {
return err
}
}
nn, err := b.nc.Read(b.buf[n:])
n += nn
switch err {
case nil:
if n < need {
continue
}
b.length = n
return nil
case io.EOF:
if n >= need {
b.length = n
return nil
}
return io.ErrUnexpectedEOF
default:
return err
}
}
}
// returns next N bytes from buffer.
// The returned slice is only guaranteed to be valid until the next read
func (b *buffer) readNext(need int) ([]byte, error) {
if b.length < need {
// refill
if err := b.fill(need); err != nil {
return nil, err
}
}
offset := b.idx
b.idx += need
b.length -= need
return b.buf[offset:b.idx], nil
}
// returns a buffer with the requested size.
// If possible, a slice from the existing buffer is returned.
// Otherwise a bigger buffer is made.
// Only one buffer (total) can be used at a time.
func (b *buffer) takeBuffer(length int) []byte {
if b.length > 0 {
return nil
}
// test (cheap) general case first
if length <= defaultBufSize || length <= cap(b.buf) {
return b.buf[:length]
}
if length < maxPacketSize {
b.buf = make([]byte, length)
return b.buf
}
return make([]byte, length)
}
// shortcut which can be used if the requested buffer is guaranteed to be
// smaller than defaultBufSize
// Only one buffer (total) can be used at a time.
func (b *buffer) takeSmallBuffer(length int) []byte {
if b.length > 0 {
return nil
}
return b.buf[:length]
}
// takeCompleteBuffer returns the complete existing buffer.
// This can be used if the necessary buffer size is unknown.
// Only one buffer (total) can be used at a time.
func (b *buffer) takeCompleteBuffer() []byte {
if b.length > 0 {
return nil
}
return b.buf
}

251
vendor/github.com/go-sql-driver/mysql/collations.go generated vendored
View File

@ -1,251 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2014 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
const defaultCollation = "utf8_general_ci"
const binaryCollation = "binary"
// A list of available collations mapped to the internal ID.
// To update this map use the following MySQL query:
// SELECT COLLATION_NAME, ID FROM information_schema.COLLATIONS
var collations = map[string]byte{
"big5_chinese_ci": 1,
"latin2_czech_cs": 2,
"dec8_swedish_ci": 3,
"cp850_general_ci": 4,
"latin1_german1_ci": 5,
"hp8_english_ci": 6,
"koi8r_general_ci": 7,
"latin1_swedish_ci": 8,
"latin2_general_ci": 9,
"swe7_swedish_ci": 10,
"ascii_general_ci": 11,
"ujis_japanese_ci": 12,
"sjis_japanese_ci": 13,
"cp1251_bulgarian_ci": 14,
"latin1_danish_ci": 15,
"hebrew_general_ci": 16,
"tis620_thai_ci": 18,
"euckr_korean_ci": 19,
"latin7_estonian_cs": 20,
"latin2_hungarian_ci": 21,
"koi8u_general_ci": 22,
"cp1251_ukrainian_ci": 23,
"gb2312_chinese_ci": 24,
"greek_general_ci": 25,
"cp1250_general_ci": 26,
"latin2_croatian_ci": 27,
"gbk_chinese_ci": 28,
"cp1257_lithuanian_ci": 29,
"latin5_turkish_ci": 30,
"latin1_german2_ci": 31,
"armscii8_general_ci": 32,
"utf8_general_ci": 33,
"cp1250_czech_cs": 34,
"ucs2_general_ci": 35,
"cp866_general_ci": 36,
"keybcs2_general_ci": 37,
"macce_general_ci": 38,
"macroman_general_ci": 39,
"cp852_general_ci": 40,
"latin7_general_ci": 41,
"latin7_general_cs": 42,
"macce_bin": 43,
"cp1250_croatian_ci": 44,
"utf8mb4_general_ci": 45,
"utf8mb4_bin": 46,
"latin1_bin": 47,
"latin1_general_ci": 48,
"latin1_general_cs": 49,
"cp1251_bin": 50,
"cp1251_general_ci": 51,
"cp1251_general_cs": 52,
"macroman_bin": 53,
"utf16_general_ci": 54,
"utf16_bin": 55,
"utf16le_general_ci": 56,
"cp1256_general_ci": 57,
"cp1257_bin": 58,
"cp1257_general_ci": 59,
"utf32_general_ci": 60,
"utf32_bin": 61,
"utf16le_bin": 62,
"binary": 63,
"armscii8_bin": 64,
"ascii_bin": 65,
"cp1250_bin": 66,
"cp1256_bin": 67,
"cp866_bin": 68,
"dec8_bin": 69,
"greek_bin": 70,
"hebrew_bin": 71,
"hp8_bin": 72,
"keybcs2_bin": 73,
"koi8r_bin": 74,
"koi8u_bin": 75,
"latin2_bin": 77,
"latin5_bin": 78,
"latin7_bin": 79,
"cp850_bin": 80,
"cp852_bin": 81,
"swe7_bin": 82,
"utf8_bin": 83,
"big5_bin": 84,
"euckr_bin": 85,
"gb2312_bin": 86,
"gbk_bin": 87,
"sjis_bin": 88,
"tis620_bin": 89,
"ucs2_bin": 90,
"ujis_bin": 91,
"geostd8_general_ci": 92,
"geostd8_bin": 93,
"latin1_spanish_ci": 94,
"cp932_japanese_ci": 95,
"cp932_bin": 96,
"eucjpms_japanese_ci": 97,
"eucjpms_bin": 98,
"cp1250_polish_ci": 99,
"utf16_unicode_ci": 101,
"utf16_icelandic_ci": 102,
"utf16_latvian_ci": 103,
"utf16_romanian_ci": 104,
"utf16_slovenian_ci": 105,
"utf16_polish_ci": 106,
"utf16_estonian_ci": 107,
"utf16_spanish_ci": 108,
"utf16_swedish_ci": 109,
"utf16_turkish_ci": 110,
"utf16_czech_ci": 111,
"utf16_danish_ci": 112,
"utf16_lithuanian_ci": 113,
"utf16_slovak_ci": 114,
"utf16_spanish2_ci": 115,
"utf16_roman_ci": 116,
"utf16_persian_ci": 117,
"utf16_esperanto_ci": 118,
"utf16_hungarian_ci": 119,
"utf16_sinhala_ci": 120,
"utf16_german2_ci": 121,
"utf16_croatian_ci": 122,
"utf16_unicode_520_ci": 123,
"utf16_vietnamese_ci": 124,
"ucs2_unicode_ci": 128,
"ucs2_icelandic_ci": 129,
"ucs2_latvian_ci": 130,
"ucs2_romanian_ci": 131,
"ucs2_slovenian_ci": 132,
"ucs2_polish_ci": 133,
"ucs2_estonian_ci": 134,
"ucs2_spanish_ci": 135,
"ucs2_swedish_ci": 136,
"ucs2_turkish_ci": 137,
"ucs2_czech_ci": 138,
"ucs2_danish_ci": 139,
"ucs2_lithuanian_ci": 140,
"ucs2_slovak_ci": 141,
"ucs2_spanish2_ci": 142,
"ucs2_roman_ci": 143,
"ucs2_persian_ci": 144,
"ucs2_esperanto_ci": 145,
"ucs2_hungarian_ci": 146,
"ucs2_sinhala_ci": 147,
"ucs2_german2_ci": 148,
"ucs2_croatian_ci": 149,
"ucs2_unicode_520_ci": 150,
"ucs2_vietnamese_ci": 151,
"ucs2_general_mysql500_ci": 159,
"utf32_unicode_ci": 160,
"utf32_icelandic_ci": 161,
"utf32_latvian_ci": 162,
"utf32_romanian_ci": 163,
"utf32_slovenian_ci": 164,
"utf32_polish_ci": 165,
"utf32_estonian_ci": 166,
"utf32_spanish_ci": 167,
"utf32_swedish_ci": 168,
"utf32_turkish_ci": 169,
"utf32_czech_ci": 170,
"utf32_danish_ci": 171,
"utf32_lithuanian_ci": 172,
"utf32_slovak_ci": 173,
"utf32_spanish2_ci": 174,
"utf32_roman_ci": 175,
"utf32_persian_ci": 176,
"utf32_esperanto_ci": 177,
"utf32_hungarian_ci": 178,
"utf32_sinhala_ci": 179,
"utf32_german2_ci": 180,
"utf32_croatian_ci": 181,
"utf32_unicode_520_ci": 182,
"utf32_vietnamese_ci": 183,
"utf8_unicode_ci": 192,
"utf8_icelandic_ci": 193,
"utf8_latvian_ci": 194,
"utf8_romanian_ci": 195,
"utf8_slovenian_ci": 196,
"utf8_polish_ci": 197,
"utf8_estonian_ci": 198,
"utf8_spanish_ci": 199,
"utf8_swedish_ci": 200,
"utf8_turkish_ci": 201,
"utf8_czech_ci": 202,
"utf8_danish_ci": 203,
"utf8_lithuanian_ci": 204,
"utf8_slovak_ci": 205,
"utf8_spanish2_ci": 206,
"utf8_roman_ci": 207,
"utf8_persian_ci": 208,
"utf8_esperanto_ci": 209,
"utf8_hungarian_ci": 210,
"utf8_sinhala_ci": 211,
"utf8_german2_ci": 212,
"utf8_croatian_ci": 213,
"utf8_unicode_520_ci": 214,
"utf8_vietnamese_ci": 215,
"utf8_general_mysql500_ci": 223,
"utf8mb4_unicode_ci": 224,
"utf8mb4_icelandic_ci": 225,
"utf8mb4_latvian_ci": 226,
"utf8mb4_romanian_ci": 227,
"utf8mb4_slovenian_ci": 228,
"utf8mb4_polish_ci": 229,
"utf8mb4_estonian_ci": 230,
"utf8mb4_spanish_ci": 231,
"utf8mb4_swedish_ci": 232,
"utf8mb4_turkish_ci": 233,
"utf8mb4_czech_ci": 234,
"utf8mb4_danish_ci": 235,
"utf8mb4_lithuanian_ci": 236,
"utf8mb4_slovak_ci": 237,
"utf8mb4_spanish2_ci": 238,
"utf8mb4_roman_ci": 239,
"utf8mb4_persian_ci": 240,
"utf8mb4_esperanto_ci": 241,
"utf8mb4_hungarian_ci": 242,
"utf8mb4_sinhala_ci": 243,
"utf8mb4_german2_ci": 244,
"utf8mb4_croatian_ci": 245,
"utf8mb4_unicode_520_ci": 246,
"utf8mb4_vietnamese_ci": 247,
}
// A blacklist of collations which is unsafe to interpolate parameters.
// These multibyte encodings may contains 0x5c (`\`) in their trailing bytes.
var unsafeCollations = map[string]bool{
"big5_chinese_ci": true,
"sjis_japanese_ci": true,
"gbk_chinese_ci": true,
"big5_bin": true,
"gb2312_bin": true,
"gbk_bin": true,
"sjis_bin": true,
"cp932_japanese_ci": true,
"cp932_bin": true,
}

461
vendor/github.com/go-sql-driver/mysql/connection.go generated vendored
View File

@ -1,461 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"database/sql/driver"
"io"
"net"
"strconv"
"strings"
"time"
)
// a copy of context.Context for Go 1.7 and earlier
type mysqlContext interface {
Done() <-chan struct{}
Err() error
// defined in context.Context, but not used in this driver:
// Deadline() (deadline time.Time, ok bool)
// Value(key interface{}) interface{}
}
type mysqlConn struct {
buf buffer
netConn net.Conn
affectedRows uint64
insertId uint64
cfg *Config
maxAllowedPacket int
maxWriteSize int
writeTimeout time.Duration
flags clientFlag
status statusFlag
sequence uint8
parseTime bool
// for context support (Go 1.8+)
watching bool
watcher chan<- mysqlContext
closech chan struct{}
finished chan<- struct{}
canceled atomicError // set non-nil if conn is canceled
closed atomicBool // set when conn is closed, before closech is closed
}
// Handles parameters set in DSN after the connection is established
func (mc *mysqlConn) handleParams() (err error) {
for param, val := range mc.cfg.Params {
switch param {
// Charset
case "charset":
charsets := strings.Split(val, ",")
for i := range charsets {
// ignore errors here - a charset may not exist
err = mc.exec("SET NAMES " + charsets[i])
if err == nil {
break
}
}
if err != nil {
return
}
// System Vars
default:
err = mc.exec("SET " + param + "=" + val + "")
if err != nil {
return
}
}
}
return
}
func (mc *mysqlConn) markBadConn(err error) error {
if mc == nil {
return err
}
if err != errBadConnNoWrite {
return err
}
return driver.ErrBadConn
}
func (mc *mysqlConn) Begin() (driver.Tx, error) {
return mc.begin(false)
}
func (mc *mysqlConn) begin(readOnly bool) (driver.Tx, error) {
if mc.closed.IsSet() {
errLog.Print(ErrInvalidConn)
return nil, driver.ErrBadConn
}
var q string
if readOnly {
q = "START TRANSACTION READ ONLY"
} else {
q = "START TRANSACTION"
}
err := mc.exec(q)
if err == nil {
return &mysqlTx{mc}, err
}
return nil, mc.markBadConn(err)
}
func (mc *mysqlConn) Close() (err error) {
// Makes Close idempotent
if !mc.closed.IsSet() {
err = mc.writeCommandPacket(comQuit)
}
mc.cleanup()
return
}
// Closes the network connection and unsets internal variables. Do not call this
// function after successfully authentication, call Close instead. This function
// is called before auth or on auth failure because MySQL will have already
// closed the network connection.
func (mc *mysqlConn) cleanup() {
if !mc.closed.TrySet(true) {
return
}
// Makes cleanup idempotent
close(mc.closech)
if mc.netConn == nil {
return
}
if err := mc.netConn.Close(); err != nil {
errLog.Print(err)
}
}
func (mc *mysqlConn) error() error {
if mc.closed.IsSet() {
if err := mc.canceled.Value(); err != nil {
return err
}
return ErrInvalidConn
}
return nil
}
func (mc *mysqlConn) Prepare(query string) (driver.Stmt, error) {
if mc.closed.IsSet() {
errLog.Print(ErrInvalidConn)
return nil, driver.ErrBadConn
}
// Send command
err := mc.writeCommandPacketStr(comStmtPrepare, query)
if err != nil {
return nil, mc.markBadConn(err)
}
stmt := &mysqlStmt{
mc: mc,
}
// Read Result
columnCount, err := stmt.readPrepareResultPacket()
if err == nil {
if stmt.paramCount > 0 {
if err = mc.readUntilEOF(); err != nil {
return nil, err
}
}
if columnCount > 0 {
err = mc.readUntilEOF()
}
}
return stmt, err
}
func (mc *mysqlConn) interpolateParams(query string, args []driver.Value) (string, error) {
// Number of ? should be same to len(args)
if strings.Count(query, "?") != len(args) {
return "", driver.ErrSkip
}
buf := mc.buf.takeCompleteBuffer()
if buf == nil {
// can not take the buffer. Something must be wrong with the connection
errLog.Print(ErrBusyBuffer)
return "", ErrInvalidConn
}
buf = buf[:0]
argPos := 0
for i := 0; i < len(query); i++ {
q := strings.IndexByte(query[i:], '?')
if q == -1 {
buf = append(buf, query[i:]...)
break
}
buf = append(buf, query[i:i+q]...)
i += q
arg := args[argPos]
argPos++
if arg == nil {
buf = append(buf, "NULL"...)
continue
}
switch v := arg.(type) {
case int64:
buf = strconv.AppendInt(buf, v, 10)
case float64:
buf = strconv.AppendFloat(buf, v, 'g', -1, 64)
case bool:
if v {
buf = append(buf, '1')
} else {
buf = append(buf, '0')
}
case time.Time:
if v.IsZero() {
buf = append(buf, "'0000-00-00'"...)
} else {
v := v.In(mc.cfg.Loc)
v = v.Add(time.Nanosecond * 500) // To round under microsecond
year := v.Year()
year100 := year / 100
year1 := year % 100
month := v.Month()
day := v.Day()
hour := v.Hour()
minute := v.Minute()
second := v.Second()
micro := v.Nanosecond() / 1000
buf = append(buf, []byte{
'\'',
digits10[year100], digits01[year100],
digits10[year1], digits01[year1],
'-',
digits10[month], digits01[month],
'-',
digits10[day], digits01[day],
' ',
digits10[hour], digits01[hour],
':',
digits10[minute], digits01[minute],
':',
digits10[second], digits01[second],
}...)
if micro != 0 {
micro10000 := micro / 10000
micro100 := micro / 100 % 100
micro1 := micro % 100
buf = append(buf, []byte{
'.',
digits10[micro10000], digits01[micro10000],
digits10[micro100], digits01[micro100],
digits10[micro1], digits01[micro1],
}...)
}
buf = append(buf, '\'')
}
case []byte:
if v == nil {
buf = append(buf, "NULL"...)
} else {
buf = append(buf, "_binary'"...)
if mc.status&statusNoBackslashEscapes == 0 {
buf = escapeBytesBackslash(buf, v)
} else {
buf = escapeBytesQuotes(buf, v)
}
buf = append(buf, '\'')
}
case string:
buf = append(buf, '\'')
if mc.status&statusNoBackslashEscapes == 0 {
buf = escapeStringBackslash(buf, v)
} else {
buf = escapeStringQuotes(buf, v)
}
buf = append(buf, '\'')
default:
return "", driver.ErrSkip
}
if len(buf)+4 > mc.maxAllowedPacket {
return "", driver.ErrSkip
}
}
if argPos != len(args) {
return "", driver.ErrSkip
}
return string(buf), nil
}
func (mc *mysqlConn) Exec(query string, args []driver.Value) (driver.Result, error) {
if mc.closed.IsSet() {
errLog.Print(ErrInvalidConn)
return nil, driver.ErrBadConn
}
if len(args) != 0 {
if !mc.cfg.InterpolateParams {
return nil, driver.ErrSkip
}
// try to interpolate the parameters to save extra roundtrips for preparing and closing a statement
prepared, err := mc.interpolateParams(query, args)
if err != nil {
return nil, err
}
query = prepared
}
mc.affectedRows = 0
mc.insertId = 0
err := mc.exec(query)
if err == nil {
return &mysqlResult{
affectedRows: int64(mc.affectedRows),
insertId: int64(mc.insertId),
}, err
}
return nil, mc.markBadConn(err)
}
// Internal function to execute commands
func (mc *mysqlConn) exec(query string) error {
// Send command
if err := mc.writeCommandPacketStr(comQuery, query); err != nil {
return mc.markBadConn(err)
}
// Read Result
resLen, err := mc.readResultSetHeaderPacket()
if err != nil {
return err
}
if resLen > 0 {
// columns
if err := mc.readUntilEOF(); err != nil {
return err
}
// rows
if err := mc.readUntilEOF(); err != nil {
return err
}
}
return mc.discardResults()
}
func (mc *mysqlConn) Query(query string, args []driver.Value) (driver.Rows, error) {
return mc.query(query, args)
}
func (mc *mysqlConn) query(query string, args []driver.Value) (*textRows, error) {
if mc.closed.IsSet() {
errLog.Print(ErrInvalidConn)
return nil, driver.ErrBadConn
}
if len(args) != 0 {
if !mc.cfg.InterpolateParams {
return nil, driver.ErrSkip
}
// try client-side prepare to reduce roundtrip
prepared, err := mc.interpolateParams(query, args)
if err != nil {
return nil, err
}
query = prepared
}
// Send command
err := mc.writeCommandPacketStr(comQuery, query)
if err == nil {
// Read Result
var resLen int
resLen, err = mc.readResultSetHeaderPacket()
if err == nil {
rows := new(textRows)
rows.mc = mc
if resLen == 0 {
rows.rs.done = true
switch err := rows.NextResultSet(); err {
case nil, io.EOF:
return rows, nil
default:
return nil, err
}
}
// Columns
rows.rs.columns, err = mc.readColumns(resLen)
return rows, err
}
}
return nil, mc.markBadConn(err)
}
// Gets the value of the given MySQL System Variable
// The returned byte slice is only valid until the next read
func (mc *mysqlConn) getSystemVar(name string) ([]byte, error) {
// Send command
if err := mc.writeCommandPacketStr(comQuery, "SELECT @@"+name); err != nil {
return nil, err
}
// Read Result
resLen, err := mc.readResultSetHeaderPacket()
if err == nil {
rows := new(textRows)
rows.mc = mc
rows.rs.columns = []mysqlField{{fieldType: fieldTypeVarChar}}
if resLen > 0 {
// Columns
if err := mc.readUntilEOF(); err != nil {
return nil, err
}
}
dest := make([]driver.Value, resLen)
if err = rows.readRow(dest); err == nil {
return dest[0].([]byte), mc.readUntilEOF()
}
}
return nil, err
}
// finish is called when the query has canceled.
func (mc *mysqlConn) cancel(err error) {
mc.canceled.Set(err)
mc.cleanup()
}
// finish is called when the query has succeeded.
func (mc *mysqlConn) finish() {
if !mc.watching || mc.finished == nil {
return
}
select {
case mc.finished <- struct{}{}:
mc.watching = false
case <-mc.closech:
}
}

207
vendor/github.com/go-sql-driver/mysql/connection_go18.go generated vendored
View File

@ -1,207 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
// +build go1.8
package mysql
import (
"context"
"database/sql"
"database/sql/driver"
)
// Ping implements driver.Pinger interface
func (mc *mysqlConn) Ping(ctx context.Context) (err error) {
if mc.closed.IsSet() {
errLog.Print(ErrInvalidConn)
return driver.ErrBadConn
}
if err = mc.watchCancel(ctx); err != nil {
return
}
defer mc.finish()
if err = mc.writeCommandPacket(comPing); err != nil {
return
}
return mc.readResultOK()
}
// BeginTx implements driver.ConnBeginTx interface
func (mc *mysqlConn) BeginTx(ctx context.Context, opts driver.TxOptions) (driver.Tx, error) {
if err := mc.watchCancel(ctx); err != nil {
return nil, err
}
defer mc.finish()
if sql.IsolationLevel(opts.Isolation) != sql.LevelDefault {
level, err := mapIsolationLevel(opts.Isolation)
if err != nil {
return nil, err
}
err = mc.exec("SET TRANSACTION ISOLATION LEVEL " + level)
if err != nil {
return nil, err
}
}
return mc.begin(opts.ReadOnly)
}
func (mc *mysqlConn) QueryContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Rows, error) {
dargs, err := namedValueToValue(args)
if err != nil {
return nil, err
}
if err := mc.watchCancel(ctx); err != nil {
return nil, err
}
rows, err := mc.query(query, dargs)
if err != nil {
mc.finish()
return nil, err
}
rows.finish = mc.finish
return rows, err
}
func (mc *mysqlConn) ExecContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Result, error) {
dargs, err := namedValueToValue(args)
if err != nil {
return nil, err
}
if err := mc.watchCancel(ctx); err != nil {
return nil, err
}
defer mc.finish()
return mc.Exec(query, dargs)
}
func (mc *mysqlConn) PrepareContext(ctx context.Context, query string) (driver.Stmt, error) {
if err := mc.watchCancel(ctx); err != nil {
return nil, err
}
stmt, err := mc.Prepare(query)
mc.finish()
if err != nil {
return nil, err
}
select {
default:
case <-ctx.Done():
stmt.Close()
return nil, ctx.Err()
}
return stmt, nil
}
func (stmt *mysqlStmt) QueryContext(ctx context.Context, args []driver.NamedValue) (driver.Rows, error) {
dargs, err := namedValueToValue(args)
if err != nil {
return nil, err
}
if err := stmt.mc.watchCancel(ctx); err != nil {
return nil, err
}
rows, err := stmt.query(dargs)
if err != nil {
stmt.mc.finish()
return nil, err
}
rows.finish = stmt.mc.finish
return rows, err
}
func (stmt *mysqlStmt) ExecContext(ctx context.Context, args []driver.NamedValue) (driver.Result, error) {
dargs, err := namedValueToValue(args)
if err != nil {
return nil, err
}
if err := stmt.mc.watchCancel(ctx); err != nil {
return nil, err
}
defer stmt.mc.finish()
return stmt.Exec(dargs)
}
func (mc *mysqlConn) watchCancel(ctx context.Context) error {
if mc.watching {
// Reach here if canceled,
// so the connection is already invalid
mc.cleanup()
return nil
}
// When ctx is already cancelled, don't watch it.
if err := ctx.Err(); err != nil {
return err
}
// When ctx is not cancellable, don't watch it.
if ctx.Done() == nil {
return nil
}
// When watcher is not alive, can't watch it.
if mc.watcher == nil {
return nil
}
mc.watching = true
mc.watcher <- ctx
return nil
}
func (mc *mysqlConn) startWatcher() {
watcher := make(chan mysqlContext, 1)
mc.watcher = watcher
finished := make(chan struct{})
mc.finished = finished
go func() {
for {
var ctx mysqlContext
select {
case ctx = <-watcher:
case <-mc.closech:
return
}
select {
case <-ctx.Done():
mc.cancel(ctx.Err())
case <-finished:
case <-mc.closech:
return
}
}
}()
}
func (mc *mysqlConn) CheckNamedValue(nv *driver.NamedValue) (err error) {
nv.Value, err = converter{}.ConvertValue(nv.Value)
return
}
// ResetSession implements driver.SessionResetter.
// (From Go 1.10)
func (mc *mysqlConn) ResetSession(ctx context.Context) error {
if mc.closed.IsSet() {
return driver.ErrBadConn
}
return nil
}

174
vendor/github.com/go-sql-driver/mysql/const.go generated vendored
View File

@ -1,174 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
const (
defaultAuthPlugin = "mysql_native_password"
defaultMaxAllowedPacket = 4 << 20 // 4 MiB
minProtocolVersion = 10
maxPacketSize = 1<<24 - 1
timeFormat = "2006-01-02 15:04:05.999999"
)
// MySQL constants documentation:
// http://dev.mysql.com/doc/internals/en/client-server-protocol.html
const (
iOK byte = 0x00
iAuthMoreData byte = 0x01
iLocalInFile byte = 0xfb
iEOF byte = 0xfe
iERR byte = 0xff
)
// https://dev.mysql.com/doc/internals/en/capability-flags.html#packet-Protocol::CapabilityFlags
type clientFlag uint32
const (
clientLongPassword clientFlag = 1 << iota
clientFoundRows
clientLongFlag
clientConnectWithDB
clientNoSchema
clientCompress
clientODBC
clientLocalFiles
clientIgnoreSpace
clientProtocol41
clientInteractive
clientSSL
clientIgnoreSIGPIPE
clientTransactions
clientReserved
clientSecureConn
clientMultiStatements
clientMultiResults
clientPSMultiResults
clientPluginAuth
clientConnectAttrs
clientPluginAuthLenEncClientData
clientCanHandleExpiredPasswords
clientSessionTrack
clientDeprecateEOF
)
const (
comQuit byte = iota + 1
comInitDB
comQuery
comFieldList
comCreateDB
comDropDB
comRefresh
comShutdown
comStatistics
comProcessInfo
comConnect
comProcessKill
comDebug
comPing
comTime
comDelayedInsert
comChangeUser
comBinlogDump
comTableDump
comConnectOut
comRegisterSlave
comStmtPrepare
comStmtExecute
comStmtSendLongData
comStmtClose
comStmtReset
comSetOption
comStmtFetch
)
// https://dev.mysql.com/doc/internals/en/com-query-response.html#packet-Protocol::ColumnType
type fieldType byte
const (
fieldTypeDecimal fieldType = iota
fieldTypeTiny
fieldTypeShort
fieldTypeLong
fieldTypeFloat
fieldTypeDouble
fieldTypeNULL
fieldTypeTimestamp
fieldTypeLongLong
fieldTypeInt24
fieldTypeDate
fieldTypeTime
fieldTypeDateTime
fieldTypeYear
fieldTypeNewDate
fieldTypeVarChar
fieldTypeBit
)
const (
fieldTypeJSON fieldType = iota + 0xf5
fieldTypeNewDecimal
fieldTypeEnum
fieldTypeSet
fieldTypeTinyBLOB
fieldTypeMediumBLOB
fieldTypeLongBLOB
fieldTypeBLOB
fieldTypeVarString
fieldTypeString
fieldTypeGeometry
)
type fieldFlag uint16
const (
flagNotNULL fieldFlag = 1 << iota
flagPriKey
flagUniqueKey
flagMultipleKey
flagBLOB
flagUnsigned
flagZeroFill
flagBinary
flagEnum
flagAutoIncrement
flagTimestamp
flagSet
flagUnknown1
flagUnknown2
flagUnknown3
flagUnknown4
)
// http://dev.mysql.com/doc/internals/en/status-flags.html
type statusFlag uint16
const (
statusInTrans statusFlag = 1 << iota
statusInAutocommit
statusReserved // Not in documentation
statusMoreResultsExists
statusNoGoodIndexUsed
statusNoIndexUsed
statusCursorExists
statusLastRowSent
statusDbDropped
statusNoBackslashEscapes
statusMetadataChanged
statusQueryWasSlow
statusPsOutParams
statusInTransReadonly
statusSessionStateChanged
)
const (
cachingSha2PasswordRequestPublicKey = 2
cachingSha2PasswordFastAuthSuccess = 3
cachingSha2PasswordPerformFullAuthentication = 4
)

172
vendor/github.com/go-sql-driver/mysql/driver.go generated vendored
View File

@ -1,172 +0,0 @@
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
// Package mysql provides a MySQL driver for Go's database/sql package.
//
// The driver should be used via the database/sql package:
//
// import "database/sql"
// import _ "github.com/go-sql-driver/mysql"
//
// db, err := sql.Open("mysql", "user:password@/dbname")
//
// See https://github.com/go-sql-driver/mysql#usage for details
package mysql
import (
"database/sql"
"database/sql/driver"
"net"
"sync"
)
// watcher interface is used for context support (From Go 1.8)
type watcher interface {
startWatcher()
}
// MySQLDriver is exported to make the driver directly accessible.
// In general the driver is used via the database/sql package.
type MySQLDriver struct{}
// DialFunc is a function which can be used to establish the network connection.
// Custom dial functions must be registered with RegisterDial
type DialFunc func(addr string) (net.Conn, error)
var (
dialsLock sync.RWMutex
dials map[string]DialFunc
)
// RegisterDial registers a custom dial function. It can then be used by the
// network address mynet(addr), where mynet is the registered new network.
// addr is passed as a parameter to the dial function.
func RegisterDial(net string, dial DialFunc) {
dialsLock.Lock()
defer dialsLock.Unlock()
if dials == nil {
dials = make(map[string]DialFunc)
}
dials[net] = dial
}
// Open new Connection.
// See https://github.com/go-sql-driver/mysql#dsn-data-source-name for how
// the DSN string is formated
func (d MySQLDriver) Open(dsn string) (driver.Conn, error) {
var err error
// New mysqlConn
mc := &mysqlConn{
maxAllowedPacket: maxPacketSize,
maxWriteSize: maxPacketSize - 1,
closech: make(chan struct{}),
}
mc.cfg, err = ParseDSN(dsn)
if err != nil {
return nil, err
}
mc.parseTime = mc.cfg.ParseTime
// Connect to Server
dialsLock.RLock()
dial, ok := dials[mc.cfg.Net]
dialsLock.RUnlock()
if ok {
mc.netConn, err = dial(mc.cfg.Addr)
} else {
nd := net.Dialer{Timeout: mc.cfg.Timeout}
mc.netConn, err = nd.Dial(mc.cfg.Net, mc.cfg.Addr)
}
if err != nil {
return nil, err
}
// Enable TCP Keepalives on TCP connections
if tc, ok := mc.netConn.(*net.TCPConn); ok {
if err := tc.SetKeepAlive(true); err != nil {
// Don't send COM_QUIT before handshake.
mc.netConn.Close()
mc.netConn = nil
return nil, err
}
}
// Call startWatcher for context support (From Go 1.8)
if s, ok := interface{}(mc).(watcher); ok {
s.startWatcher()
}
mc.buf = newBuffer(mc.netConn)
// Set I/O timeouts
mc.buf.timeout = mc.cfg.ReadTimeout
mc.writeTimeout = mc.cfg.WriteTimeout
// Reading Handshake Initialization Packet
authData, plugin, err := mc.readHandshakePacket()
if err != nil {
mc.cleanup()
return nil, err
}
if plugin == "" {
plugin = defaultAuthPlugin
}
// Send Client Authentication Packet
authResp, err := mc.auth(authData, plugin)
if err != nil {
// try the default auth plugin, if using the requested plugin failed
errLog.Print("could not use requested auth plugin '"+plugin+"': ", err.Error())
plugin = defaultAuthPlugin
authResp, err = mc.auth(authData, plugin)
if err != nil {
mc.cleanup()
return nil, err
}
}
if err = mc.writeHandshakeResponsePacket(authResp, plugin); err != nil {
mc.cleanup()
return nil, err
}
// Handle response to auth packet, switch methods if possible
if err = mc.handleAuthResult(authData, plugin); err != nil {
// Authentication failed and MySQL has already closed the connection
// (https://dev.mysql.com/doc/internals/en/authentication-fails.html).
// Do not send COM_QUIT, just cleanup and return the error.
mc.cleanup()
return nil, err
}
if mc.cfg.MaxAllowedPacket > 0 {
mc.maxAllowedPacket = mc.cfg.MaxAllowedPacket
} else {
// Get max allowed packet size
maxap, err := mc.getSystemVar("max_allowed_packet")
if err != nil {
mc.Close()
return nil, err
}
mc.maxAllowedPacket = stringToInt(maxap) - 1
}
if mc.maxAllowedPacket < maxPacketSize {
mc.maxWriteSize = mc.maxAllowedPacket
}
// Handle DSN Params
err = mc.handleParams()
if err != nil {
mc.Close()
return nil, err
}
return mc, nil
}
func init() {
sql.Register("mysql", &MySQLDriver{})
}

611
vendor/github.com/go-sql-driver/mysql/dsn.go generated vendored
View File

@ -1,611 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2016 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"bytes"
"crypto/rsa"
"crypto/tls"
"errors"
"fmt"
"net"
"net/url"
"sort"
"strconv"
"strings"
"time"
)
var (
errInvalidDSNUnescaped = errors.New("invalid DSN: did you forget to escape a param value?")
errInvalidDSNAddr = errors.New("invalid DSN: network address not terminated (missing closing brace)")
errInvalidDSNNoSlash = errors.New("invalid DSN: missing the slash separating the database name")
errInvalidDSNUnsafeCollation = errors.New("invalid DSN: interpolateParams can not be used with unsafe collations")
)
// Config is a configuration parsed from a DSN string.
// If a new Config is created instead of being parsed from a DSN string,
// the NewConfig function should be used, which sets default values.
type Config struct {
User string // Username
Passwd string // Password (requires User)
Net string // Network type
Addr string // Network address (requires Net)
DBName string // Database name
Params map[string]string // Connection parameters
Collation string // Connection collation
Loc *time.Location // Location for time.Time values
MaxAllowedPacket int // Max packet size allowed
ServerPubKey string // Server public key name
pubKey *rsa.PublicKey // Server public key
TLSConfig string // TLS configuration name
tls *tls.Config // TLS configuration
Timeout time.Duration // Dial timeout
ReadTimeout time.Duration // I/O read timeout
WriteTimeout time.Duration // I/O write timeout
AllowAllFiles bool // Allow all files to be used with LOAD DATA LOCAL INFILE
AllowCleartextPasswords bool // Allows the cleartext client side plugin
AllowNativePasswords bool // Allows the native password authentication method
AllowOldPasswords bool // Allows the old insecure password method
ClientFoundRows bool // Return number of matching rows instead of rows changed
ColumnsWithAlias bool // Prepend table alias to column names
InterpolateParams bool // Interpolate placeholders into query string
MultiStatements bool // Allow multiple statements in one query
ParseTime bool // Parse time values to time.Time
RejectReadOnly bool // Reject read-only connections
}
// NewConfig creates a new Config and sets default values.
func NewConfig() *Config {
return &Config{
Collation: defaultCollation,
Loc: time.UTC,
MaxAllowedPacket: defaultMaxAllowedPacket,
AllowNativePasswords: true,
}
}
func (cfg *Config) normalize() error {
if cfg.InterpolateParams && unsafeCollations[cfg.Collation] {
return errInvalidDSNUnsafeCollation
}
// Set default network if empty
if cfg.Net == "" {
cfg.Net = "tcp"
}
// Set default address if empty
if cfg.Addr == "" {
switch cfg.Net {
case "tcp":
cfg.Addr = "127.0.0.1:3306"
case "unix":
cfg.Addr = "/tmp/mysql.sock"
default:
return errors.New("default addr for network '" + cfg.Net + "' unknown")
}
} else if cfg.Net == "tcp" {
cfg.Addr = ensureHavePort(cfg.Addr)
}
if cfg.tls != nil {
if cfg.tls.ServerName == "" && !cfg.tls.InsecureSkipVerify {
host, _, err := net.SplitHostPort(cfg.Addr)
if err == nil {
cfg.tls.ServerName = host
}
}
}
return nil
}
// FormatDSN formats the given Config into a DSN string which can be passed to
// the driver.
func (cfg *Config) FormatDSN() string {
var buf bytes.Buffer
// [username[:password]@]
if len(cfg.User) > 0 {
buf.WriteString(cfg.User)
if len(cfg.Passwd) > 0 {
buf.WriteByte(':')
buf.WriteString(cfg.Passwd)
}
buf.WriteByte('@')
}
// [protocol[(address)]]
if len(cfg.Net) > 0 {
buf.WriteString(cfg.Net)
if len(cfg.Addr) > 0 {
buf.WriteByte('(')
buf.WriteString(cfg.Addr)
buf.WriteByte(')')
}
}
// /dbname
buf.WriteByte('/')
buf.WriteString(cfg.DBName)
// [?param1=value1&...&paramN=valueN]
hasParam := false
if cfg.AllowAllFiles {
hasParam = true
buf.WriteString("?allowAllFiles=true")
}
if cfg.AllowCleartextPasswords {
if hasParam {
buf.WriteString("&allowCleartextPasswords=true")
} else {
hasParam = true
buf.WriteString("?allowCleartextPasswords=true")
}
}
if !cfg.AllowNativePasswords {
if hasParam {
buf.WriteString("&allowNativePasswords=false")
} else {
hasParam = true
buf.WriteString("?allowNativePasswords=false")
}
}
if cfg.AllowOldPasswords {
if hasParam {
buf.WriteString("&allowOldPasswords=true")
} else {
hasParam = true
buf.WriteString("?allowOldPasswords=true")
}
}
if cfg.ClientFoundRows {
if hasParam {
buf.WriteString("&clientFoundRows=true")
} else {
hasParam = true
buf.WriteString("?clientFoundRows=true")
}
}
if col := cfg.Collation; col != defaultCollation && len(col) > 0 {
if hasParam {
buf.WriteString("&collation=")
} else {
hasParam = true
buf.WriteString("?collation=")
}
buf.WriteString(col)
}
if cfg.ColumnsWithAlias {
if hasParam {
buf.WriteString("&columnsWithAlias=true")
} else {
hasParam = true
buf.WriteString("?columnsWithAlias=true")
}
}
if cfg.InterpolateParams {
if hasParam {
buf.WriteString("&interpolateParams=true")
} else {
hasParam = true
buf.WriteString("?interpolateParams=true")
}
}
if cfg.Loc != time.UTC && cfg.Loc != nil {
if hasParam {
buf.WriteString("&loc=")
} else {
hasParam = true
buf.WriteString("?loc=")
}
buf.WriteString(url.QueryEscape(cfg.Loc.String()))
}
if cfg.MultiStatements {
if hasParam {
buf.WriteString("&multiStatements=true")
} else {
hasParam = true
buf.WriteString("?multiStatements=true")
}
}
if cfg.ParseTime {
if hasParam {
buf.WriteString("&parseTime=true")
} else {
hasParam = true
buf.WriteString("?parseTime=true")
}
}
if cfg.ReadTimeout > 0 {
if hasParam {
buf.WriteString("&readTimeout=")
} else {
hasParam = true
buf.WriteString("?readTimeout=")
}
buf.WriteString(cfg.ReadTimeout.String())
}
if cfg.RejectReadOnly {
if hasParam {
buf.WriteString("&rejectReadOnly=true")
} else {
hasParam = true
buf.WriteString("?rejectReadOnly=true")
}
}
if len(cfg.ServerPubKey) > 0 {
if hasParam {
buf.WriteString("&serverPubKey=")
} else {
hasParam = true
buf.WriteString("?serverPubKey=")
}
buf.WriteString(url.QueryEscape(cfg.ServerPubKey))
}
if cfg.Timeout > 0 {
if hasParam {
buf.WriteString("&timeout=")
} else {
hasParam = true
buf.WriteString("?timeout=")
}
buf.WriteString(cfg.Timeout.String())
}
if len(cfg.TLSConfig) > 0 {
if hasParam {
buf.WriteString("&tls=")
} else {
hasParam = true
buf.WriteString("?tls=")
}
buf.WriteString(url.QueryEscape(cfg.TLSConfig))
}
if cfg.WriteTimeout > 0 {
if hasParam {
buf.WriteString("&writeTimeout=")
} else {
hasParam = true
buf.WriteString("?writeTimeout=")
}
buf.WriteString(cfg.WriteTimeout.String())
}
if cfg.MaxAllowedPacket != defaultMaxAllowedPacket {
if hasParam {
buf.WriteString("&maxAllowedPacket=")
} else {
hasParam = true
buf.WriteString("?maxAllowedPacket=")
}
buf.WriteString(strconv.Itoa(cfg.MaxAllowedPacket))
}
// other params
if cfg.Params != nil {
var params []string
for param := range cfg.Params {
params = append(params, param)
}
sort.Strings(params)
for _, param := range params {
if hasParam {
buf.WriteByte('&')
} else {
hasParam = true
buf.WriteByte('?')
}
buf.WriteString(param)
buf.WriteByte('=')
buf.WriteString(url.QueryEscape(cfg.Params[param]))
}
}
return buf.String()
}
// ParseDSN parses the DSN string to a Config
func ParseDSN(dsn string) (cfg *Config, err error) {
// New config with some default values
cfg = NewConfig()
// [user[:password]@][net[(addr)]]/dbname[?param1=value1&paramN=valueN]
// Find the last '/' (since the password or the net addr might contain a '/')
foundSlash := false
for i := len(dsn) - 1; i >= 0; i-- {
if dsn[i] == '/' {
foundSlash = true
var j, k int
// left part is empty if i <= 0
if i > 0 {
// [username[:password]@][protocol[(address)]]
// Find the last '@' in dsn[:i]
for j = i; j >= 0; j-- {
if dsn[j] == '@' {
// username[:password]
// Find the first ':' in dsn[:j]
for k = 0; k < j; k++ {
if dsn[k] == ':' {
cfg.Passwd = dsn[k+1 : j]
break
}
}
cfg.User = dsn[:k]
break
}
}
// [protocol[(address)]]
// Find the first '(' in dsn[j+1:i]
for k = j + 1; k < i; k++ {
if dsn[k] == '(' {
// dsn[i-1] must be == ')' if an address is specified
if dsn[i-1] != ')' {
if strings.ContainsRune(dsn[k+1:i], ')') {
return nil, errInvalidDSNUnescaped
}
return nil, errInvalidDSNAddr
}
cfg.Addr = dsn[k+1 : i-1]
break
}
}
cfg.Net = dsn[j+1 : k]
}
// dbname[?param1=value1&...&paramN=valueN]
// Find the first '?' in dsn[i+1:]
for j = i + 1; j < len(dsn); j++ {
if dsn[j] == '?' {
if err = parseDSNParams(cfg, dsn[j+1:]); err != nil {
return
}
break
}
}
cfg.DBName = dsn[i+1 : j]
break
}
}
if !foundSlash && len(dsn) > 0 {
return nil, errInvalidDSNNoSlash
}
if err = cfg.normalize(); err != nil {
return nil, err
}
return
}
// parseDSNParams parses the DSN "query string"
// Values must be url.QueryEscape'ed
func parseDSNParams(cfg *Config, params string) (err error) {
for _, v := range strings.Split(params, "&") {
param := strings.SplitN(v, "=", 2)
if len(param) != 2 {
continue
}
// cfg params
switch value := param[1]; param[0] {
// Disable INFILE whitelist / enable all files
case "allowAllFiles":
var isBool bool
cfg.AllowAllFiles, isBool = readBool(value)
if !isBool {
return errors.New("invalid bool value: " + value)
}
// Use cleartext authentication mode (MySQL 5.5.10+)
case "allowCleartextPasswords":
var isBool bool
cfg.AllowCleartextPasswords, isBool = readBool(value)
if !isBool {
return errors.New("invalid bool value: " + value)
}
// Use native password authentication
case "allowNativePasswords":
var isBool bool
cfg.AllowNativePasswords, isBool = readBool(value)
if !isBool {
return errors.New("invalid bool value: " + value)
}
// Use old authentication mode (pre MySQL 4.1)
case "allowOldPasswords":
var isBool bool
cfg.AllowOldPasswords, isBool = readBool(value)
if !isBool {
return errors.New("invalid bool value: " + value)
}
// Switch "rowsAffected" mode
case "clientFoundRows":
var isBool bool
cfg.ClientFoundRows, isBool = readBool(value)
if !isBool {
return errors.New("invalid bool value: " + value)
}
// Collation
case "collation":
cfg.Collation = value
break
case "columnsWithAlias":
var isBool bool
cfg.ColumnsWithAlias, isBool = readBool(value)
if !isBool {
return errors.New("invalid bool value: " + value)
}
// Compression
case "compress":
return errors.New("compression not implemented yet")
// Enable client side placeholder substitution
case "interpolateParams":
var isBool bool
cfg.InterpolateParams, isBool = readBool(value)
if !isBool {
return errors.New("invalid bool value: " + value)
}
// Time Location
case "loc":
if value, err = url.QueryUnescape(value); err != nil {
return
}
cfg.Loc, err = time.LoadLocation(value)
if err != nil {
return
}
// multiple statements in one query
case "multiStatements":
var isBool bool
cfg.MultiStatements, isBool = readBool(value)
if !isBool {
return errors.New("invalid bool value: " + value)
}
// time.Time parsing
case "parseTime":
var isBool bool
cfg.ParseTime, isBool = readBool(value)
if !isBool {
return errors.New("invalid bool value: " + value)
}
// I/O read Timeout
case "readTimeout":
cfg.ReadTimeout, err = time.ParseDuration(value)
if err != nil {
return
}
// Reject read-only connections
case "rejectReadOnly":
var isBool bool
cfg.RejectReadOnly, isBool = readBool(value)
if !isBool {
return errors.New("invalid bool value: " + value)
}
// Server public key
case "serverPubKey":
name, err := url.QueryUnescape(value)
if err != nil {
return fmt.Errorf("invalid value for server pub key name: %v", err)
}
if pubKey := getServerPubKey(name); pubKey != nil {
cfg.ServerPubKey = name
cfg.pubKey = pubKey
} else {
return errors.New("invalid value / unknown server pub key name: " + name)
}
// Strict mode
case "strict":
panic("strict mode has been removed. See https://github.com/go-sql-driver/mysql/wiki/strict-mode")
// Dial Timeout
case "timeout":
cfg.Timeout, err = time.ParseDuration(value)
if err != nil {
return
}
// TLS-Encryption
case "tls":
boolValue, isBool := readBool(value)
if isBool {
if boolValue {
cfg.TLSConfig = "true"
cfg.tls = &tls.Config{}
} else {
cfg.TLSConfig = "false"
}
} else if vl := strings.ToLower(value); vl == "skip-verify" {
cfg.TLSConfig = vl
cfg.tls = &tls.Config{InsecureSkipVerify: true}
} else {
name, err := url.QueryUnescape(value)
if err != nil {
return fmt.Errorf("invalid value for TLS config name: %v", err)
}
if tlsConfig := getTLSConfigClone(name); tlsConfig != nil {
cfg.TLSConfig = name
cfg.tls = tlsConfig
} else {
return errors.New("invalid value / unknown config name: " + name)
}
}
// I/O write Timeout
case "writeTimeout":
cfg.WriteTimeout, err = time.ParseDuration(value)
if err != nil {
return
}
case "maxAllowedPacket":
cfg.MaxAllowedPacket, err = strconv.Atoi(value)
if err != nil {
return
}
default:
// lazy init
if cfg.Params == nil {
cfg.Params = make(map[string]string)
}
if cfg.Params[param[0]], err = url.QueryUnescape(value); err != nil {
return
}
}
}
return
}
func ensureHavePort(addr string) string {
if _, _, err := net.SplitHostPort(addr); err != nil {
return net.JoinHostPort(addr, "3306")
}
return addr
}

65
vendor/github.com/go-sql-driver/mysql/errors.go generated vendored
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@ -1,65 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2013 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"errors"
"fmt"
"log"
"os"
)
// Various errors the driver might return. Can change between driver versions.
var (
ErrInvalidConn = errors.New("invalid connection")
ErrMalformPkt = errors.New("malformed packet")
ErrNoTLS = errors.New("TLS requested but server does not support TLS")
ErrCleartextPassword = errors.New("this user requires clear text authentication. If you still want to use it, please add 'allowCleartextPasswords=1' to your DSN")
ErrNativePassword = errors.New("this user requires mysql native password authentication.")
ErrOldPassword = errors.New("this user requires old password authentication. If you still want to use it, please add 'allowOldPasswords=1' to your DSN. See also https://github.com/go-sql-driver/mysql/wiki/old_passwords")
ErrUnknownPlugin = errors.New("this authentication plugin is not supported")
ErrOldProtocol = errors.New("MySQL server does not support required protocol 41+")
ErrPktSync = errors.New("commands out of sync. You can't run this command now")
ErrPktSyncMul = errors.New("commands out of sync. Did you run multiple statements at once?")
ErrPktTooLarge = errors.New("packet for query is too large. Try adjusting the 'max_allowed_packet' variable on the server")
ErrBusyBuffer = errors.New("busy buffer")
// errBadConnNoWrite is used for connection errors where nothing was sent to the database yet.
// If this happens first in a function starting a database interaction, it should be replaced by driver.ErrBadConn
// to trigger a resend.
// See https://github.com/go-sql-driver/mysql/pull/302
errBadConnNoWrite = errors.New("bad connection")
)
var errLog = Logger(log.New(os.Stderr, "[mysql] ", log.Ldate|log.Ltime|log.Lshortfile))
// Logger is used to log critical error messages.
type Logger interface {
Print(v ...interface{})
}
// SetLogger is used to set the logger for critical errors.
// The initial logger is os.Stderr.
func SetLogger(logger Logger) error {
if logger == nil {
return errors.New("logger is nil")
}
errLog = logger
return nil
}
// MySQLError is an error type which represents a single MySQL error
type MySQLError struct {
Number uint16
Message string
}
func (me *MySQLError) Error() string {
return fmt.Sprintf("Error %d: %s", me.Number, me.Message)
}

194
vendor/github.com/go-sql-driver/mysql/fields.go generated vendored
View File

@ -1,194 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2017 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"database/sql"
"reflect"
)
func (mf *mysqlField) typeDatabaseName() string {
switch mf.fieldType {
case fieldTypeBit:
return "BIT"
case fieldTypeBLOB:
if mf.charSet != collations[binaryCollation] {
return "TEXT"
}
return "BLOB"
case fieldTypeDate:
return "DATE"
case fieldTypeDateTime:
return "DATETIME"
case fieldTypeDecimal:
return "DECIMAL"
case fieldTypeDouble:
return "DOUBLE"
case fieldTypeEnum:
return "ENUM"
case fieldTypeFloat:
return "FLOAT"
case fieldTypeGeometry:
return "GEOMETRY"
case fieldTypeInt24:
return "MEDIUMINT"
case fieldTypeJSON:
return "JSON"
case fieldTypeLong:
return "INT"
case fieldTypeLongBLOB:
if mf.charSet != collations[binaryCollation] {
return "LONGTEXT"
}
return "LONGBLOB"
case fieldTypeLongLong:
return "BIGINT"
case fieldTypeMediumBLOB:
if mf.charSet != collations[binaryCollation] {
return "MEDIUMTEXT"
}
return "MEDIUMBLOB"
case fieldTypeNewDate:
return "DATE"
case fieldTypeNewDecimal:
return "DECIMAL"
case fieldTypeNULL:
return "NULL"
case fieldTypeSet:
return "SET"
case fieldTypeShort:
return "SMALLINT"
case fieldTypeString:
if mf.charSet == collations[binaryCollation] {
return "BINARY"
}
return "CHAR"
case fieldTypeTime:
return "TIME"
case fieldTypeTimestamp:
return "TIMESTAMP"
case fieldTypeTiny:
return "TINYINT"
case fieldTypeTinyBLOB:
if mf.charSet != collations[binaryCollation] {
return "TINYTEXT"
}
return "TINYBLOB"
case fieldTypeVarChar:
if mf.charSet == collations[binaryCollation] {
return "VARBINARY"
}
return "VARCHAR"
case fieldTypeVarString:
if mf.charSet == collations[binaryCollation] {
return "VARBINARY"
}
return "VARCHAR"
case fieldTypeYear:
return "YEAR"
default:
return ""
}
}
var (
scanTypeFloat32 = reflect.TypeOf(float32(0))
scanTypeFloat64 = reflect.TypeOf(float64(0))
scanTypeInt8 = reflect.TypeOf(int8(0))
scanTypeInt16 = reflect.TypeOf(int16(0))
scanTypeInt32 = reflect.TypeOf(int32(0))
scanTypeInt64 = reflect.TypeOf(int64(0))
scanTypeNullFloat = reflect.TypeOf(sql.NullFloat64{})
scanTypeNullInt = reflect.TypeOf(sql.NullInt64{})
scanTypeNullTime = reflect.TypeOf(NullTime{})
scanTypeUint8 = reflect.TypeOf(uint8(0))
scanTypeUint16 = reflect.TypeOf(uint16(0))
scanTypeUint32 = reflect.TypeOf(uint32(0))
scanTypeUint64 = reflect.TypeOf(uint64(0))
scanTypeRawBytes = reflect.TypeOf(sql.RawBytes{})
scanTypeUnknown = reflect.TypeOf(new(interface{}))
)
type mysqlField struct {
tableName string
name string
length uint32
flags fieldFlag
fieldType fieldType
decimals byte
charSet uint8
}
func (mf *mysqlField) scanType() reflect.Type {
switch mf.fieldType {
case fieldTypeTiny:
if mf.flags&flagNotNULL != 0 {
if mf.flags&flagUnsigned != 0 {
return scanTypeUint8
}
return scanTypeInt8
}
return scanTypeNullInt
case fieldTypeShort, fieldTypeYear:
if mf.flags&flagNotNULL != 0 {
if mf.flags&flagUnsigned != 0 {
return scanTypeUint16
}
return scanTypeInt16
}
return scanTypeNullInt
case fieldTypeInt24, fieldTypeLong:
if mf.flags&flagNotNULL != 0 {
if mf.flags&flagUnsigned != 0 {
return scanTypeUint32
}
return scanTypeInt32
}
return scanTypeNullInt
case fieldTypeLongLong:
if mf.flags&flagNotNULL != 0 {
if mf.flags&flagUnsigned != 0 {
return scanTypeUint64
}
return scanTypeInt64
}
return scanTypeNullInt
case fieldTypeFloat:
if mf.flags&flagNotNULL != 0 {
return scanTypeFloat32
}
return scanTypeNullFloat
case fieldTypeDouble:
if mf.flags&flagNotNULL != 0 {
return scanTypeFloat64
}
return scanTypeNullFloat
case fieldTypeDecimal, fieldTypeNewDecimal, fieldTypeVarChar,
fieldTypeBit, fieldTypeEnum, fieldTypeSet, fieldTypeTinyBLOB,
fieldTypeMediumBLOB, fieldTypeLongBLOB, fieldTypeBLOB,
fieldTypeVarString, fieldTypeString, fieldTypeGeometry, fieldTypeJSON,
fieldTypeTime:
return scanTypeRawBytes
case fieldTypeDate, fieldTypeNewDate,
fieldTypeTimestamp, fieldTypeDateTime:
// NullTime is always returned for more consistent behavior as it can
// handle both cases of parseTime regardless if the field is nullable.
return scanTypeNullTime
default:
return scanTypeUnknown
}
}

182
vendor/github.com/go-sql-driver/mysql/infile.go generated vendored
View File

@ -1,182 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2013 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"fmt"
"io"
"os"
"strings"
"sync"
)
var (
fileRegister map[string]bool
fileRegisterLock sync.RWMutex
readerRegister map[string]func() io.Reader
readerRegisterLock sync.RWMutex
)
// RegisterLocalFile adds the given file to the file whitelist,
// so that it can be used by "LOAD DATA LOCAL INFILE <filepath>".
// Alternatively you can allow the use of all local files with
// the DSN parameter 'allowAllFiles=true'
//
// filePath := "/home/gopher/data.csv"
// mysql.RegisterLocalFile(filePath)
// err := db.Exec("LOAD DATA LOCAL INFILE '" + filePath + "' INTO TABLE foo")
// if err != nil {
// ...
//
func RegisterLocalFile(filePath string) {
fileRegisterLock.Lock()
// lazy map init
if fileRegister == nil {
fileRegister = make(map[string]bool)
}
fileRegister[strings.Trim(filePath, `"`)] = true
fileRegisterLock.Unlock()
}
// DeregisterLocalFile removes the given filepath from the whitelist.
func DeregisterLocalFile(filePath string) {
fileRegisterLock.Lock()
delete(fileRegister, strings.Trim(filePath, `"`))
fileRegisterLock.Unlock()
}
// RegisterReaderHandler registers a handler function which is used
// to receive a io.Reader.
// The Reader can be used by "LOAD DATA LOCAL INFILE Reader::<name>".
// If the handler returns a io.ReadCloser Close() is called when the
// request is finished.
//
// mysql.RegisterReaderHandler("data", func() io.Reader {
// var csvReader io.Reader // Some Reader that returns CSV data
// ... // Open Reader here
// return csvReader
// })
// err := db.Exec("LOAD DATA LOCAL INFILE 'Reader::data' INTO TABLE foo")
// if err != nil {
// ...
//
func RegisterReaderHandler(name string, handler func() io.Reader) {
readerRegisterLock.Lock()
// lazy map init
if readerRegister == nil {
readerRegister = make(map[string]func() io.Reader)
}
readerRegister[name] = handler
readerRegisterLock.Unlock()
}
// DeregisterReaderHandler removes the ReaderHandler function with
// the given name from the registry.
func DeregisterReaderHandler(name string) {
readerRegisterLock.Lock()
delete(readerRegister, name)
readerRegisterLock.Unlock()
}
func deferredClose(err *error, closer io.Closer) {
closeErr := closer.Close()
if *err == nil {
*err = closeErr
}
}
func (mc *mysqlConn) handleInFileRequest(name string) (err error) {
var rdr io.Reader
var data []byte
packetSize := 16 * 1024 // 16KB is small enough for disk readahead and large enough for TCP
if mc.maxWriteSize < packetSize {
packetSize = mc.maxWriteSize
}
if idx := strings.Index(name, "Reader::"); idx == 0 || (idx > 0 && name[idx-1] == '/') { // io.Reader
// The server might return an an absolute path. See issue #355.
name = name[idx+8:]
readerRegisterLock.RLock()
handler, inMap := readerRegister[name]
readerRegisterLock.RUnlock()
if inMap {
rdr = handler()
if rdr != nil {
if cl, ok := rdr.(io.Closer); ok {
defer deferredClose(&err, cl)
}
} else {
err = fmt.Errorf("Reader '%s' is <nil>", name)
}
} else {
err = fmt.Errorf("Reader '%s' is not registered", name)
}
} else { // File
name = strings.Trim(name, `"`)
fileRegisterLock.RLock()
fr := fileRegister[name]
fileRegisterLock.RUnlock()
if mc.cfg.AllowAllFiles || fr {
var file *os.File
var fi os.FileInfo
if file, err = os.Open(name); err == nil {
defer deferredClose(&err, file)
// get file size
if fi, err = file.Stat(); err == nil {
rdr = file
if fileSize := int(fi.Size()); fileSize < packetSize {
packetSize = fileSize
}
}
}
} else {
err = fmt.Errorf("local file '%s' is not registered", name)
}
}
// send content packets
// if packetSize == 0, the Reader contains no data
if err == nil && packetSize > 0 {
data := make([]byte, 4+packetSize)
var n int
for err == nil {
n, err = rdr.Read(data[4:])
if n > 0 {
if ioErr := mc.writePacket(data[:4+n]); ioErr != nil {
return ioErr
}
}
}
if err == io.EOF {
err = nil
}
}
// send empty packet (termination)
if data == nil {
data = make([]byte, 4)
}
if ioErr := mc.writePacket(data[:4]); ioErr != nil {
return ioErr
}
// read OK packet
if err == nil {
return mc.readResultOK()
}
mc.readPacket()
return err
}

1286
vendor/github.com/go-sql-driver/mysql/packets.go generated vendored
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File diff suppressed because it is too large Load Diff

22
vendor/github.com/go-sql-driver/mysql/result.go generated vendored
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@ -1,22 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
type mysqlResult struct {
affectedRows int64
insertId int64
}
func (res *mysqlResult) LastInsertId() (int64, error) {
return res.insertId, nil
}
func (res *mysqlResult) RowsAffected() (int64, error) {
return res.affectedRows, nil
}

216
vendor/github.com/go-sql-driver/mysql/rows.go generated vendored
View File

@ -1,216 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"database/sql/driver"
"io"
"math"
"reflect"
)
type resultSet struct {
columns []mysqlField
columnNames []string
done bool
}
type mysqlRows struct {
mc *mysqlConn
rs resultSet
finish func()
}
type binaryRows struct {
mysqlRows
}
type textRows struct {
mysqlRows
}
func (rows *mysqlRows) Columns() []string {
if rows.rs.columnNames != nil {
return rows.rs.columnNames
}
columns := make([]string, len(rows.rs.columns))
if rows.mc != nil && rows.mc.cfg.ColumnsWithAlias {
for i := range columns {
if tableName := rows.rs.columns[i].tableName; len(tableName) > 0 {
columns[i] = tableName + "." + rows.rs.columns[i].name
} else {
columns[i] = rows.rs.columns[i].name
}
}
} else {
for i := range columns {
columns[i] = rows.rs.columns[i].name
}
}
rows.rs.columnNames = columns
return columns
}
func (rows *mysqlRows) ColumnTypeDatabaseTypeName(i int) string {
return rows.rs.columns[i].typeDatabaseName()
}
// func (rows *mysqlRows) ColumnTypeLength(i int) (length int64, ok bool) {
// return int64(rows.rs.columns[i].length), true
// }
func (rows *mysqlRows) ColumnTypeNullable(i int) (nullable, ok bool) {
return rows.rs.columns[i].flags&flagNotNULL == 0, true
}
func (rows *mysqlRows) ColumnTypePrecisionScale(i int) (int64, int64, bool) {
column := rows.rs.columns[i]
decimals := int64(column.decimals)
switch column.fieldType {
case fieldTypeDecimal, fieldTypeNewDecimal:
if decimals > 0 {
return int64(column.length) - 2, decimals, true
}
return int64(column.length) - 1, decimals, true
case fieldTypeTimestamp, fieldTypeDateTime, fieldTypeTime:
return decimals, decimals, true
case fieldTypeFloat, fieldTypeDouble:
if decimals == 0x1f {
return math.MaxInt64, math.MaxInt64, true
}
return math.MaxInt64, decimals, true
}
return 0, 0, false
}
func (rows *mysqlRows) ColumnTypeScanType(i int) reflect.Type {
return rows.rs.columns[i].scanType()
}
func (rows *mysqlRows) Close() (err error) {
if f := rows.finish; f != nil {
f()
rows.finish = nil
}
mc := rows.mc
if mc == nil {
return nil
}
if err := mc.error(); err != nil {
return err
}
// Remove unread packets from stream
if !rows.rs.done {
err = mc.readUntilEOF()
}
if err == nil {
if err = mc.discardResults(); err != nil {
return err
}
}
rows.mc = nil
return err
}
func (rows *mysqlRows) HasNextResultSet() (b bool) {
if rows.mc == nil {
return false
}
return rows.mc.status&statusMoreResultsExists != 0
}
func (rows *mysqlRows) nextResultSet() (int, error) {
if rows.mc == nil {
return 0, io.EOF
}
if err := rows.mc.error(); err != nil {
return 0, err
}
// Remove unread packets from stream
if !rows.rs.done {
if err := rows.mc.readUntilEOF(); err != nil {
return 0, err
}
rows.rs.done = true
}
if !rows.HasNextResultSet() {
rows.mc = nil
return 0, io.EOF
}
rows.rs = resultSet{}
return rows.mc.readResultSetHeaderPacket()
}
func (rows *mysqlRows) nextNotEmptyResultSet() (int, error) {
for {
resLen, err := rows.nextResultSet()
if err != nil {
return 0, err
}
if resLen > 0 {
return resLen, nil
}
rows.rs.done = true
}
}
func (rows *binaryRows) NextResultSet() error {
resLen, err := rows.nextNotEmptyResultSet()
if err != nil {
return err
}
rows.rs.columns, err = rows.mc.readColumns(resLen)
return err
}
func (rows *binaryRows) Next(dest []driver.Value) error {
if mc := rows.mc; mc != nil {
if err := mc.error(); err != nil {
return err
}
// Fetch next row from stream
return rows.readRow(dest)
}
return io.EOF
}
func (rows *textRows) NextResultSet() (err error) {
resLen, err := rows.nextNotEmptyResultSet()
if err != nil {
return err
}
rows.rs.columns, err = rows.mc.readColumns(resLen)
return err
}
func (rows *textRows) Next(dest []driver.Value) error {
if mc := rows.mc; mc != nil {
if err := mc.error(); err != nil {
return err
}
// Fetch next row from stream
return rows.readRow(dest)
}
return io.EOF
}

211
vendor/github.com/go-sql-driver/mysql/statement.go generated vendored
View File

@ -1,211 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"database/sql/driver"
"fmt"
"io"
"reflect"
"strconv"
)
type mysqlStmt struct {
mc *mysqlConn
id uint32
paramCount int
}
func (stmt *mysqlStmt) Close() error {
if stmt.mc == nil || stmt.mc.closed.IsSet() {
// driver.Stmt.Close can be called more than once, thus this function
// has to be idempotent.
// See also Issue #450 and golang/go#16019.
//errLog.Print(ErrInvalidConn)
return driver.ErrBadConn
}
err := stmt.mc.writeCommandPacketUint32(comStmtClose, stmt.id)
stmt.mc = nil
return err
}
func (stmt *mysqlStmt) NumInput() int {
return stmt.paramCount
}
func (stmt *mysqlStmt) ColumnConverter(idx int) driver.ValueConverter {
return converter{}
}
func (stmt *mysqlStmt) Exec(args []driver.Value) (driver.Result, error) {
if stmt.mc.closed.IsSet() {
errLog.Print(ErrInvalidConn)
return nil, driver.ErrBadConn
}
// Send command
err := stmt.writeExecutePacket(args)
if err != nil {
return nil, stmt.mc.markBadConn(err)
}
mc := stmt.mc
mc.affectedRows = 0
mc.insertId = 0
// Read Result
resLen, err := mc.readResultSetHeaderPacket()
if err != nil {
return nil, err
}
if resLen > 0 {
// Columns
if err = mc.readUntilEOF(); err != nil {
return nil, err
}
// Rows
if err := mc.readUntilEOF(); err != nil {
return nil, err
}
}
if err := mc.discardResults(); err != nil {
return nil, err
}
return &mysqlResult{
affectedRows: int64(mc.affectedRows),
insertId: int64(mc.insertId),
}, nil
}
func (stmt *mysqlStmt) Query(args []driver.Value) (driver.Rows, error) {
return stmt.query(args)
}
func (stmt *mysqlStmt) query(args []driver.Value) (*binaryRows, error) {
if stmt.mc.closed.IsSet() {
errLog.Print(ErrInvalidConn)
return nil, driver.ErrBadConn
}
// Send command
err := stmt.writeExecutePacket(args)
if err != nil {
return nil, stmt.mc.markBadConn(err)
}
mc := stmt.mc
// Read Result
resLen, err := mc.readResultSetHeaderPacket()
if err != nil {
return nil, err
}
rows := new(binaryRows)
if resLen > 0 {
rows.mc = mc
rows.rs.columns, err = mc.readColumns(resLen)
} else {
rows.rs.done = true
switch err := rows.NextResultSet(); err {
case nil, io.EOF:
return rows, nil
default:
return nil, err
}
}
return rows, err
}
type converter struct{}
// ConvertValue mirrors the reference/default converter in database/sql/driver
// with _one_ exception. We support uint64 with their high bit and the default
// implementation does not. This function should be kept in sync with
// database/sql/driver defaultConverter.ConvertValue() except for that
// deliberate difference.
func (c converter) ConvertValue(v interface{}) (driver.Value, error) {
if driver.IsValue(v) {
return v, nil
}
if vr, ok := v.(driver.Valuer); ok {
sv, err := callValuerValue(vr)
if err != nil {
return nil, err
}
if !driver.IsValue(sv) {
return nil, fmt.Errorf("non-Value type %T returned from Value", sv)
}
return sv, nil
}
rv := reflect.ValueOf(v)
switch rv.Kind() {
case reflect.Ptr:
// indirect pointers
if rv.IsNil() {
return nil, nil
} else {
return c.ConvertValue(rv.Elem().Interface())
}
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return rv.Int(), nil
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32:
return int64(rv.Uint()), nil
case reflect.Uint64:
u64 := rv.Uint()
if u64 >= 1<<63 {
return strconv.FormatUint(u64, 10), nil
}
return int64(u64), nil
case reflect.Float32, reflect.Float64:
return rv.Float(), nil
case reflect.Bool:
return rv.Bool(), nil
case reflect.Slice:
ek := rv.Type().Elem().Kind()
if ek == reflect.Uint8 {
return rv.Bytes(), nil
}
return nil, fmt.Errorf("unsupported type %T, a slice of %s", v, ek)
case reflect.String:
return rv.String(), nil
}
return nil, fmt.Errorf("unsupported type %T, a %s", v, rv.Kind())
}
var valuerReflectType = reflect.TypeOf((*driver.Valuer)(nil)).Elem()
// callValuerValue returns vr.Value(), with one exception:
// If vr.Value is an auto-generated method on a pointer type and the
// pointer is nil, it would panic at runtime in the panicwrap
// method. Treat it like nil instead.
//
// This is so people can implement driver.Value on value types and
// still use nil pointers to those types to mean nil/NULL, just like
// string/*string.
//
// This is an exact copy of the same-named unexported function from the
// database/sql package.
func callValuerValue(vr driver.Valuer) (v driver.Value, err error) {
if rv := reflect.ValueOf(vr); rv.Kind() == reflect.Ptr &&
rv.IsNil() &&
rv.Type().Elem().Implements(valuerReflectType) {
return nil, nil
}
return vr.Value()
}

31
vendor/github.com/go-sql-driver/mysql/transaction.go generated vendored
View File

@ -1,31 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
type mysqlTx struct {
mc *mysqlConn
}
func (tx *mysqlTx) Commit() (err error) {
if tx.mc == nil || tx.mc.closed.IsSet() {
return ErrInvalidConn
}
err = tx.mc.exec("COMMIT")
tx.mc = nil
return
}
func (tx *mysqlTx) Rollback() (err error) {
if tx.mc == nil || tx.mc.closed.IsSet() {
return ErrInvalidConn
}
err = tx.mc.exec("ROLLBACK")
tx.mc = nil
return
}

726
vendor/github.com/go-sql-driver/mysql/utils.go generated vendored
View File

@ -1,726 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2012 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
package mysql
import (
"crypto/tls"
"database/sql/driver"
"encoding/binary"
"fmt"
"io"
"strconv"
"strings"
"sync"
"sync/atomic"
"time"
)
// Registry for custom tls.Configs
var (
tlsConfigLock sync.RWMutex
tlsConfigRegistry map[string]*tls.Config
)
// RegisterTLSConfig registers a custom tls.Config to be used with sql.Open.
// Use the key as a value in the DSN where tls=value.
//
// Note: The provided tls.Config is exclusively owned by the driver after
// registering it.
//
// rootCertPool := x509.NewCertPool()
// pem, err := ioutil.ReadFile("/path/ca-cert.pem")
// if err != nil {
// log.Fatal(err)
// }
// if ok := rootCertPool.AppendCertsFromPEM(pem); !ok {
// log.Fatal("Failed to append PEM.")
// }
// clientCert := make([]tls.Certificate, 0, 1)
// certs, err := tls.LoadX509KeyPair("/path/client-cert.pem", "/path/client-key.pem")
// if err != nil {
// log.Fatal(err)
// }
// clientCert = append(clientCert, certs)
// mysql.RegisterTLSConfig("custom", &tls.Config{
// RootCAs: rootCertPool,
// Certificates: clientCert,
// })
// db, err := sql.Open("mysql", "user@tcp(localhost:3306)/test?tls=custom")
//
func RegisterTLSConfig(key string, config *tls.Config) error {
if _, isBool := readBool(key); isBool || strings.ToLower(key) == "skip-verify" {
return fmt.Errorf("key '%s' is reserved", key)
}
tlsConfigLock.Lock()
if tlsConfigRegistry == nil {
tlsConfigRegistry = make(map[string]*tls.Config)
}
tlsConfigRegistry[key] = config
tlsConfigLock.Unlock()
return nil
}
// DeregisterTLSConfig removes the tls.Config associated with key.
func DeregisterTLSConfig(key string) {
tlsConfigLock.Lock()
if tlsConfigRegistry != nil {
delete(tlsConfigRegistry, key)
}
tlsConfigLock.Unlock()
}
func getTLSConfigClone(key string) (config *tls.Config) {
tlsConfigLock.RLock()
if v, ok := tlsConfigRegistry[key]; ok {
config = cloneTLSConfig(v)
}
tlsConfigLock.RUnlock()
return
}
// Returns the bool value of the input.
// The 2nd return value indicates if the input was a valid bool value
func readBool(input string) (value bool, valid bool) {
switch input {
case "1", "true", "TRUE", "True":
return true, true
case "0", "false", "FALSE", "False":
return false, true
}
// Not a valid bool value
return
}
/******************************************************************************
* Time related utils *
******************************************************************************/
// NullTime represents a time.Time that may be NULL.
// NullTime implements the Scanner interface so
// it can be used as a scan destination:
//
// var nt NullTime
// err := db.QueryRow("SELECT time FROM foo WHERE id=?", id).Scan(&nt)
// ...
// if nt.Valid {
// // use nt.Time
// } else {
// // NULL value
// }
//
// This NullTime implementation is not driver-specific
type NullTime struct {
Time time.Time
Valid bool // Valid is true if Time is not NULL
}
// Scan implements the Scanner interface.
// The value type must be time.Time or string / []byte (formatted time-string),
// otherwise Scan fails.
func (nt *NullTime) Scan(value interface{}) (err error) {
if value == nil {
nt.Time, nt.Valid = time.Time{}, false
return
}
switch v := value.(type) {
case time.Time:
nt.Time, nt.Valid = v, true
return
case []byte:
nt.Time, err = parseDateTime(string(v), time.UTC)
nt.Valid = (err == nil)
return
case string:
nt.Time, err = parseDateTime(v, time.UTC)
nt.Valid = (err == nil)
return
}
nt.Valid = false
return fmt.Errorf("Can't convert %T to time.Time", value)
}
// Value implements the driver Valuer interface.
func (nt NullTime) Value() (driver.Value, error) {
if !nt.Valid {
return nil, nil
}
return nt.Time, nil
}
func parseDateTime(str string, loc *time.Location) (t time.Time, err error) {
base := "0000-00-00 00:00:00.0000000"
switch len(str) {
case 10, 19, 21, 22, 23, 24, 25, 26: // up to "YYYY-MM-DD HH:MM:SS.MMMMMM"
if str == base[:len(str)] {
return
}
t, err = time.Parse(timeFormat[:len(str)], str)
default:
err = fmt.Errorf("invalid time string: %s", str)
return
}
// Adjust location
if err == nil && loc != time.UTC {
y, mo, d := t.Date()
h, mi, s := t.Clock()
t, err = time.Date(y, mo, d, h, mi, s, t.Nanosecond(), loc), nil
}
return
}
func parseBinaryDateTime(num uint64, data []byte, loc *time.Location) (driver.Value, error) {
switch num {
case 0:
return time.Time{}, nil
case 4:
return time.Date(
int(binary.LittleEndian.Uint16(data[:2])), // year
time.Month(data[2]), // month
int(data[3]), // day
0, 0, 0, 0,
loc,
), nil
case 7:
return time.Date(
int(binary.LittleEndian.Uint16(data[:2])), // year
time.Month(data[2]), // month
int(data[3]), // day
int(data[4]), // hour
int(data[5]), // minutes
int(data[6]), // seconds
0,
loc,
), nil
case 11:
return time.Date(
int(binary.LittleEndian.Uint16(data[:2])), // year
time.Month(data[2]), // month
int(data[3]), // day
int(data[4]), // hour
int(data[5]), // minutes
int(data[6]), // seconds
int(binary.LittleEndian.Uint32(data[7:11]))*1000, // nanoseconds
loc,
), nil
}
return nil, fmt.Errorf("invalid DATETIME packet length %d", num)
}
// zeroDateTime is used in formatBinaryDateTime to avoid an allocation
// if the DATE or DATETIME has the zero value.
// It must never be changed.
// The current behavior depends on database/sql copying the result.
var zeroDateTime = []byte("0000-00-00 00:00:00.000000")
const digits01 = "0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789"
const digits10 = "0000000000111111111122222222223333333333444444444455555555556666666666777777777788888888889999999999"
func appendMicrosecs(dst, src []byte, decimals int) []byte {
if decimals <= 0 {
return dst
}
if len(src) == 0 {
return append(dst, ".000000"[:decimals+1]...)
}
microsecs := binary.LittleEndian.Uint32(src[:4])
p1 := byte(microsecs / 10000)
microsecs -= 10000 * uint32(p1)
p2 := byte(microsecs / 100)
microsecs -= 100 * uint32(p2)
p3 := byte(microsecs)
switch decimals {
default:
return append(dst, '.',
digits10[p1], digits01[p1],
digits10[p2], digits01[p2],
digits10[p3], digits01[p3],
)
case 1:
return append(dst, '.',
digits10[p1],
)
case 2:
return append(dst, '.',
digits10[p1], digits01[p1],
)
case 3:
return append(dst, '.',
digits10[p1], digits01[p1],
digits10[p2],
)
case 4:
return append(dst, '.',
digits10[p1], digits01[p1],
digits10[p2], digits01[p2],
)
case 5:
return append(dst, '.',
digits10[p1], digits01[p1],
digits10[p2], digits01[p2],
digits10[p3],
)
}
}
func formatBinaryDateTime(src []byte, length uint8) (driver.Value, error) {
// length expects the deterministic length of the zero value,
// negative time and 100+ hours are automatically added if needed
if len(src) == 0 {
return zeroDateTime[:length], nil
}
var dst []byte // return value
var p1, p2, p3 byte // current digit pair
switch length {
case 10, 19, 21, 22, 23, 24, 25, 26:
default:
t := "DATE"
if length > 10 {
t += "TIME"
}
return nil, fmt.Errorf("illegal %s length %d", t, length)
}
switch len(src) {
case 4, 7, 11:
default:
t := "DATE"
if length > 10 {
t += "TIME"
}
return nil, fmt.Errorf("illegal %s packet length %d", t, len(src))
}
dst = make([]byte, 0, length)
// start with the date
year := binary.LittleEndian.Uint16(src[:2])
pt := year / 100
p1 = byte(year - 100*uint16(pt))
p2, p3 = src[2], src[3]
dst = append(dst,
digits10[pt], digits01[pt],
digits10[p1], digits01[p1], '-',
digits10[p2], digits01[p2], '-',
digits10[p3], digits01[p3],
)
if length == 10 {
return dst, nil
}
if len(src) == 4 {
return append(dst, zeroDateTime[10:length]...), nil
}
dst = append(dst, ' ')
p1 = src[4] // hour
src = src[5:]
// p1 is 2-digit hour, src is after hour
p2, p3 = src[0], src[1]
dst = append(dst,
digits10[p1], digits01[p1], ':',
digits10[p2], digits01[p2], ':',
digits10[p3], digits01[p3],
)
return appendMicrosecs(dst, src[2:], int(length)-20), nil
}
func formatBinaryTime(src []byte, length uint8) (driver.Value, error) {
// length expects the deterministic length of the zero value,
// negative time and 100+ hours are automatically added if needed
if len(src) == 0 {
return zeroDateTime[11 : 11+length], nil
}
var dst []byte // return value
switch length {
case
8, // time (can be up to 10 when negative and 100+ hours)
10, 11, 12, 13, 14, 15: // time with fractional seconds
default:
return nil, fmt.Errorf("illegal TIME length %d", length)
}
switch len(src) {
case 8, 12:
default:
return nil, fmt.Errorf("invalid TIME packet length %d", len(src))
}
// +2 to enable negative time and 100+ hours
dst = make([]byte, 0, length+2)
if src[0] == 1 {
dst = append(dst, '-')
}
days := binary.LittleEndian.Uint32(src[1:5])
hours := int64(days)*24 + int64(src[5])
if hours >= 100 {
dst = strconv.AppendInt(dst, hours, 10)
} else {
dst = append(dst, digits10[hours], digits01[hours])
}
min, sec := src[6], src[7]
dst = append(dst, ':',
digits10[min], digits01[min], ':',
digits10[sec], digits01[sec],
)
return appendMicrosecs(dst, src[8:], int(length)-9), nil
}
/******************************************************************************
* Convert from and to bytes *
******************************************************************************/
func uint64ToBytes(n uint64) []byte {
return []byte{
byte(n),
byte(n >> 8),
byte(n >> 16),
byte(n >> 24),
byte(n >> 32),
byte(n >> 40),
byte(n >> 48),
byte(n >> 56),
}
}
func uint64ToString(n uint64) []byte {
var a [20]byte
i := 20
// U+0030 = 0
// ...
// U+0039 = 9
var q uint64
for n >= 10 {
i--
q = n / 10
a[i] = uint8(n-q*10) + 0x30
n = q
}
i--
a[i] = uint8(n) + 0x30
return a[i:]
}
// treats string value as unsigned integer representation
func stringToInt(b []byte) int {
val := 0
for i := range b {
val *= 10
val += int(b[i] - 0x30)
}
return val
}
// returns the string read as a bytes slice, wheter the value is NULL,
// the number of bytes read and an error, in case the string is longer than
// the input slice
func readLengthEncodedString(b []byte) ([]byte, bool, int, error) {
// Get length
num, isNull, n := readLengthEncodedInteger(b)
if num < 1 {
return b[n:n], isNull, n, nil
}
n += int(num)
// Check data length
if len(b) >= n {
return b[n-int(num) : n : n], false, n, nil
}
return nil, false, n, io.EOF
}
// returns the number of bytes skipped and an error, in case the string is
// longer than the input slice
func skipLengthEncodedString(b []byte) (int, error) {
// Get length
num, _, n := readLengthEncodedInteger(b)
if num < 1 {
return n, nil
}
n += int(num)
// Check data length
if len(b) >= n {
return n, nil
}
return n, io.EOF
}
// returns the number read, whether the value is NULL and the number of bytes read
func readLengthEncodedInteger(b []byte) (uint64, bool, int) {
// See issue #349
if len(b) == 0 {
return 0, true, 1
}
switch b[0] {
// 251: NULL
case 0xfb:
return 0, true, 1
// 252: value of following 2
case 0xfc:
return uint64(b[1]) | uint64(b[2])<<8, false, 3
// 253: value of following 3
case 0xfd:
return uint64(b[1]) | uint64(b[2])<<8 | uint64(b[3])<<16, false, 4
// 254: value of following 8
case 0xfe:
return uint64(b[1]) | uint64(b[2])<<8 | uint64(b[3])<<16 |
uint64(b[4])<<24 | uint64(b[5])<<32 | uint64(b[6])<<40 |
uint64(b[7])<<48 | uint64(b[8])<<56,
false, 9
}
// 0-250: value of first byte
return uint64(b[0]), false, 1
}
// encodes a uint64 value and appends it to the given bytes slice
func appendLengthEncodedInteger(b []byte, n uint64) []byte {
switch {
case n <= 250:
return append(b, byte(n))
case n <= 0xffff:
return append(b, 0xfc, byte(n), byte(n>>8))
case n <= 0xffffff:
return append(b, 0xfd, byte(n), byte(n>>8), byte(n>>16))
}
return append(b, 0xfe, byte(n), byte(n>>8), byte(n>>16), byte(n>>24),
byte(n>>32), byte(n>>40), byte(n>>48), byte(n>>56))
}
// reserveBuffer checks cap(buf) and expand buffer to len(buf) + appendSize.
// If cap(buf) is not enough, reallocate new buffer.
func reserveBuffer(buf []byte, appendSize int) []byte {
newSize := len(buf) + appendSize
if cap(buf) < newSize {
// Grow buffer exponentially
newBuf := make([]byte, len(buf)*2+appendSize)
copy(newBuf, buf)
buf = newBuf
}
return buf[:newSize]
}
// escapeBytesBackslash escapes []byte with backslashes (\)
// This escapes the contents of a string (provided as []byte) by adding backslashes before special
// characters, and turning others into specific escape sequences, such as
// turning newlines into \n and null bytes into \0.
// https://github.com/mysql/mysql-server/blob/mysql-5.7.5/mysys/charset.c#L823-L932
func escapeBytesBackslash(buf, v []byte) []byte {
pos := len(buf)
buf = reserveBuffer(buf, len(v)*2)
for _, c := range v {
switch c {
case '\x00':
buf[pos] = '\\'
buf[pos+1] = '0'
pos += 2
case '\n':
buf[pos] = '\\'
buf[pos+1] = 'n'
pos += 2
case '\r':
buf[pos] = '\\'
buf[pos+1] = 'r'
pos += 2
case '\x1a':
buf[pos] = '\\'
buf[pos+1] = 'Z'
pos += 2
case '\'':
buf[pos] = '\\'
buf[pos+1] = '\''
pos += 2
case '"':
buf[pos] = '\\'
buf[pos+1] = '"'
pos += 2
case '\\':
buf[pos] = '\\'
buf[pos+1] = '\\'
pos += 2
default:
buf[pos] = c
pos++
}
}
return buf[:pos]
}
// escapeStringBackslash is similar to escapeBytesBackslash but for string.
func escapeStringBackslash(buf []byte, v string) []byte {
pos := len(buf)
buf = reserveBuffer(buf, len(v)*2)
for i := 0; i < len(v); i++ {
c := v[i]
switch c {
case '\x00':
buf[pos] = '\\'
buf[pos+1] = '0'
pos += 2
case '\n':
buf[pos] = '\\'
buf[pos+1] = 'n'
pos += 2
case '\r':
buf[pos] = '\\'
buf[pos+1] = 'r'
pos += 2
case '\x1a':
buf[pos] = '\\'
buf[pos+1] = 'Z'
pos += 2
case '\'':
buf[pos] = '\\'
buf[pos+1] = '\''
pos += 2
case '"':
buf[pos] = '\\'
buf[pos+1] = '"'
pos += 2
case '\\':
buf[pos] = '\\'
buf[pos+1] = '\\'
pos += 2
default:
buf[pos] = c
pos++
}
}
return buf[:pos]
}
// escapeBytesQuotes escapes apostrophes in []byte by doubling them up.
// This escapes the contents of a string by doubling up any apostrophes that
// it contains. This is used when the NO_BACKSLASH_ESCAPES SQL_MODE is in
// effect on the server.
// https://github.com/mysql/mysql-server/blob/mysql-5.7.5/mysys/charset.c#L963-L1038
func escapeBytesQuotes(buf, v []byte) []byte {
pos := len(buf)
buf = reserveBuffer(buf, len(v)*2)
for _, c := range v {
if c == '\'' {
buf[pos] = '\''
buf[pos+1] = '\''
pos += 2
} else {
buf[pos] = c
pos++
}
}
return buf[:pos]
}
// escapeStringQuotes is similar to escapeBytesQuotes but for string.
func escapeStringQuotes(buf []byte, v string) []byte {
pos := len(buf)
buf = reserveBuffer(buf, len(v)*2)
for i := 0; i < len(v); i++ {
c := v[i]
if c == '\'' {
buf[pos] = '\''
buf[pos+1] = '\''
pos += 2
} else {
buf[pos] = c
pos++
}
}
return buf[:pos]
}
/******************************************************************************
* Sync utils *
******************************************************************************/
// noCopy may be embedded into structs which must not be copied
// after the first use.
//
// See https://github.com/golang/go/issues/8005#issuecomment-190753527
// for details.
type noCopy struct{}
// Lock is a no-op used by -copylocks checker from `go vet`.
func (*noCopy) Lock() {}
// atomicBool is a wrapper around uint32 for usage as a boolean value with
// atomic access.
type atomicBool struct {
_noCopy noCopy
value uint32
}
// IsSet returns wether the current boolean value is true
func (ab *atomicBool) IsSet() bool {
return atomic.LoadUint32(&ab.value) > 0
}
// Set sets the value of the bool regardless of the previous value
func (ab *atomicBool) Set(value bool) {
if value {
atomic.StoreUint32(&ab.value, 1)
} else {
atomic.StoreUint32(&ab.value, 0)
}
}
// TrySet sets the value of the bool and returns wether the value changed
func (ab *atomicBool) TrySet(value bool) bool {
if value {
return atomic.SwapUint32(&ab.value, 1) == 0
}
return atomic.SwapUint32(&ab.value, 0) > 0
}
// atomicError is a wrapper for atomically accessed error values
type atomicError struct {
_noCopy noCopy
value atomic.Value
}
// Set sets the error value regardless of the previous value.
// The value must not be nil
func (ae *atomicError) Set(value error) {
ae.value.Store(value)
}
// Value returns the current error value
func (ae *atomicError) Value() error {
if v := ae.value.Load(); v != nil {
// this will panic if the value doesn't implement the error interface
return v.(error)
}
return nil
}

40
vendor/github.com/go-sql-driver/mysql/utils_go17.go generated vendored
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@ -1,40 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2017 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
// +build go1.7
// +build !go1.8
package mysql
import "crypto/tls"
func cloneTLSConfig(c *tls.Config) *tls.Config {
return &tls.Config{
Rand: c.Rand,
Time: c.Time,
Certificates: c.Certificates,
NameToCertificate: c.NameToCertificate,
GetCertificate: c.GetCertificate,
RootCAs: c.RootCAs,
NextProtos: c.NextProtos,
ServerName: c.ServerName,
ClientAuth: c.ClientAuth,
ClientCAs: c.ClientCAs,
InsecureSkipVerify: c.InsecureSkipVerify,
CipherSuites: c.CipherSuites,
PreferServerCipherSuites: c.PreferServerCipherSuites,
SessionTicketsDisabled: c.SessionTicketsDisabled,
SessionTicketKey: c.SessionTicketKey,
ClientSessionCache: c.ClientSessionCache,
MinVersion: c.MinVersion,
MaxVersion: c.MaxVersion,
CurvePreferences: c.CurvePreferences,
DynamicRecordSizingDisabled: c.DynamicRecordSizingDisabled,
Renegotiation: c.Renegotiation,
}
}

50
vendor/github.com/go-sql-driver/mysql/utils_go18.go generated vendored
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@ -1,50 +0,0 @@
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package
//
// Copyright 2017 The Go-MySQL-Driver Authors. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at http://mozilla.org/MPL/2.0/.
// +build go1.8
package mysql
import (
"crypto/tls"
"database/sql"
"database/sql/driver"
"errors"
"fmt"
)
func cloneTLSConfig(c *tls.Config) *tls.Config {
return c.Clone()
}
func namedValueToValue(named []driver.NamedValue) ([]driver.Value, error) {
dargs := make([]driver.Value, len(named))
for n, param := range named {
if len(param.Name) > 0 {
// TODO: support the use of Named Parameters #561
return nil, errors.New("mysql: driver does not support the use of Named Parameters")
}
dargs[n] = param.Value
}
return dargs, nil
}
func mapIsolationLevel(level driver.IsolationLevel) (string, error) {
switch sql.IsolationLevel(level) {
case sql.LevelRepeatableRead:
return "REPEATABLE READ", nil
case sql.LevelReadCommitted:
return "READ COMMITTED", nil
case sql.LevelReadUncommitted:
return "READ UNCOMMITTED", nil
case sql.LevelSerializable:
return "SERIALIZABLE", nil
default:
return "", fmt.Errorf("mysql: unsupported isolation level: %v", level)
}
}

3
vendor/github.com/jinzhu/gorm/.gitignore generated vendored Normal file
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@ -0,0 +1,3 @@
documents
coverage.txt
_book

21
vendor/github.com/jinzhu/gorm/License generated vendored Normal file
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@ -0,0 +1,21 @@
The MIT License (MIT)
Copyright (c) 2013-NOW Jinzhu <wosmvp@gmail.com>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

41
vendor/github.com/jinzhu/gorm/README.md generated vendored Normal file
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# GORM
The fantastic ORM library for Golang, aims to be developer friendly.
[![go report card](https://goreportcard.com/badge/github.com/jinzhu/gorm "go report card")](https://goreportcard.com/report/github.com/jinzhu/gorm)
[![wercker status](https://app.wercker.com/status/8596cace912c9947dd9c8542ecc8cb8b/s/master "wercker status")](https://app.wercker.com/project/byKey/8596cace912c9947dd9c8542ecc8cb8b)
[![codecov](https://codecov.io/gh/jinzhu/gorm/branch/master/graph/badge.svg)](https://codecov.io/gh/jinzhu/gorm)
[![Join the chat at https://gitter.im/jinzhu/gorm](https://img.shields.io/gitter/room/jinzhu/gorm.svg)](https://gitter.im/jinzhu/gorm?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
[![Open Collective Backer](https://opencollective.com/gorm/tiers/backer/badge.svg?label=backer&color=brightgreen "Open Collective Backer")](https://opencollective.com/gorm)
[![Open Collective Sponsor](https://opencollective.com/gorm/tiers/sponsor/badge.svg?label=sponsor&color=brightgreen "Open Collective Sponsor")](https://opencollective.com/gorm)
[![MIT license](https://img.shields.io/badge/license-MIT-brightgreen.svg)](https://opensource.org/licenses/MIT)
[![GoDoc](https://godoc.org/github.com/jinzhu/gorm?status.svg)](https://godoc.org/github.com/jinzhu/gorm)
## Overview
* Full-Featured ORM (almost)
* Associations (Has One, Has Many, Belongs To, Many To Many, Polymorphism)
* Hooks (Before/After Create/Save/Update/Delete/Find)
* Preloading (eager loading)
* Transactions
* Composite Primary Key
* SQL Builder
* Auto Migrations
* Logger
* Extendable, write Plugins based on GORM callbacks
* Every feature comes with tests
* Developer Friendly
## Getting Started
* GORM Guides [https://gorm.io](https://gorm.io)
## Contributing
[You can help to deliver a better GORM, check out things you can do](https://gorm.io/contribute.html)
## License
© Jinzhu, 2013~time.Now
Released under the [MIT License](https://github.com/jinzhu/gorm/blob/master/License)

377
vendor/github.com/jinzhu/gorm/association.go generated vendored Normal file
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package gorm
import (
"errors"
"fmt"
"reflect"
)
// Association Mode contains some helper methods to handle relationship things easily.
type Association struct {
Error error
scope *Scope
column string
field *Field
}
// Find find out all related associations
func (association *Association) Find(value interface{}) *Association {
association.scope.related(value, association.column)
return association.setErr(association.scope.db.Error)
}
// Append append new associations for many2many, has_many, replace current association for has_one, belongs_to
func (association *Association) Append(values ...interface{}) *Association {
if association.Error != nil {
return association
}
if relationship := association.field.Relationship; relationship.Kind == "has_one" {
return association.Replace(values...)
}
return association.saveAssociations(values...)
}
// Replace replace current associations with new one
func (association *Association) Replace(values ...interface{}) *Association {
if association.Error != nil {
return association
}
var (
relationship = association.field.Relationship
scope = association.scope
field = association.field.Field
newDB = scope.NewDB()
)
// Append new values
association.field.Set(reflect.Zero(association.field.Field.Type()))
association.saveAssociations(values...)
// Belongs To
if relationship.Kind == "belongs_to" {
// Set foreign key to be null when clearing value (length equals 0)
if len(values) == 0 {
// Set foreign key to be nil
var foreignKeyMap = map[string]interface{}{}
for _, foreignKey := range relationship.ForeignDBNames {
foreignKeyMap[foreignKey] = nil
}
association.setErr(newDB.Model(scope.Value).UpdateColumn(foreignKeyMap).Error)
}
} else {
// Polymorphic Relations
if relationship.PolymorphicDBName != "" {
newDB = newDB.Where(fmt.Sprintf("%v = ?", scope.Quote(relationship.PolymorphicDBName)), relationship.PolymorphicValue)
}
// Delete Relations except new created
if len(values) > 0 {
var associationForeignFieldNames, associationForeignDBNames []string
if relationship.Kind == "many_to_many" {
// if many to many relations, get association fields name from association foreign keys
associationScope := scope.New(reflect.New(field.Type()).Interface())
for idx, dbName := range relationship.AssociationForeignFieldNames {
if field, ok := associationScope.FieldByName(dbName); ok {
associationForeignFieldNames = append(associationForeignFieldNames, field.Name)
associationForeignDBNames = append(associationForeignDBNames, relationship.AssociationForeignDBNames[idx])
}
}
} else {
// If has one/many relations, use primary keys
for _, field := range scope.New(reflect.New(field.Type()).Interface()).PrimaryFields() {
associationForeignFieldNames = append(associationForeignFieldNames, field.Name)
associationForeignDBNames = append(associationForeignDBNames, field.DBName)
}
}
newPrimaryKeys := scope.getColumnAsArray(associationForeignFieldNames, field.Interface())
if len(newPrimaryKeys) > 0 {
sql := fmt.Sprintf("%v NOT IN (%v)", toQueryCondition(scope, associationForeignDBNames), toQueryMarks(newPrimaryKeys))
newDB = newDB.Where(sql, toQueryValues(newPrimaryKeys)...)
}
}
if relationship.Kind == "many_to_many" {
// if many to many relations, delete related relations from join table
var sourceForeignFieldNames []string
for _, dbName := range relationship.ForeignFieldNames {
if field, ok := scope.FieldByName(dbName); ok {
sourceForeignFieldNames = append(sourceForeignFieldNames, field.Name)
}
}
if sourcePrimaryKeys := scope.getColumnAsArray(sourceForeignFieldNames, scope.Value); len(sourcePrimaryKeys) > 0 {
newDB = newDB.Where(fmt.Sprintf("%v IN (%v)", toQueryCondition(scope, relationship.ForeignDBNames), toQueryMarks(sourcePrimaryKeys)), toQueryValues(sourcePrimaryKeys)...)
association.setErr(relationship.JoinTableHandler.Delete(relationship.JoinTableHandler, newDB))
}
} else if relationship.Kind == "has_one" || relationship.Kind == "has_many" {
// has_one or has_many relations, set foreign key to be nil (TODO or delete them?)
var foreignKeyMap = map[string]interface{}{}
for idx, foreignKey := range relationship.ForeignDBNames {
foreignKeyMap[foreignKey] = nil
if field, ok := scope.FieldByName(relationship.AssociationForeignFieldNames[idx]); ok {
newDB = newDB.Where(fmt.Sprintf("%v = ?", scope.Quote(foreignKey)), field.Field.Interface())
}
}
fieldValue := reflect.New(association.field.Field.Type()).Interface()
association.setErr(newDB.Model(fieldValue).UpdateColumn(foreignKeyMap).Error)
}
}
return association
}
// Delete remove relationship between source & passed arguments, but won't delete those arguments
func (association *Association) Delete(values ...interface{}) *Association {
if association.Error != nil {
return association
}
var (
relationship = association.field.Relationship
scope = association.scope
field = association.field.Field
newDB = scope.NewDB()
)
if len(values) == 0 {
return association
}
var deletingResourcePrimaryFieldNames, deletingResourcePrimaryDBNames []string
for _, field := range scope.New(reflect.New(field.Type()).Interface()).PrimaryFields() {
deletingResourcePrimaryFieldNames = append(deletingResourcePrimaryFieldNames, field.Name)
deletingResourcePrimaryDBNames = append(deletingResourcePrimaryDBNames, field.DBName)
}
deletingPrimaryKeys := scope.getColumnAsArray(deletingResourcePrimaryFieldNames, values...)
if relationship.Kind == "many_to_many" {
// source value's foreign keys
for idx, foreignKey := range relationship.ForeignDBNames {
if field, ok := scope.FieldByName(relationship.ForeignFieldNames[idx]); ok {
newDB = newDB.Where(fmt.Sprintf("%v = ?", scope.Quote(foreignKey)), field.Field.Interface())
}
}
// get association's foreign fields name
var associationScope = scope.New(reflect.New(field.Type()).Interface())
var associationForeignFieldNames []string
for _, associationDBName := range relationship.AssociationForeignFieldNames {
if field, ok := associationScope.FieldByName(associationDBName); ok {
associationForeignFieldNames = append(associationForeignFieldNames, field.Name)
}
}
// association value's foreign keys
deletingPrimaryKeys := scope.getColumnAsArray(associationForeignFieldNames, values...)
sql := fmt.Sprintf("%v IN (%v)", toQueryCondition(scope, relationship.AssociationForeignDBNames), toQueryMarks(deletingPrimaryKeys))
newDB = newDB.Where(sql, toQueryValues(deletingPrimaryKeys)...)
association.setErr(relationship.JoinTableHandler.Delete(relationship.JoinTableHandler, newDB))
} else {
var foreignKeyMap = map[string]interface{}{}
for _, foreignKey := range relationship.ForeignDBNames {
foreignKeyMap[foreignKey] = nil
}
if relationship.Kind == "belongs_to" {
// find with deleting relation's foreign keys
primaryKeys := scope.getColumnAsArray(relationship.AssociationForeignFieldNames, values...)
newDB = newDB.Where(
fmt.Sprintf("%v IN (%v)", toQueryCondition(scope, relationship.ForeignDBNames), toQueryMarks(primaryKeys)),
toQueryValues(primaryKeys)...,
)
// set foreign key to be null if there are some records affected
modelValue := reflect.New(scope.GetModelStruct().ModelType).Interface()
if results := newDB.Model(modelValue).UpdateColumn(foreignKeyMap); results.Error == nil {
if results.RowsAffected > 0 {
scope.updatedAttrsWithValues(foreignKeyMap)
}
} else {
association.setErr(results.Error)
}
} else if relationship.Kind == "has_one" || relationship.Kind == "has_many" {
// find all relations
primaryKeys := scope.getColumnAsArray(relationship.AssociationForeignFieldNames, scope.Value)
newDB = newDB.Where(
fmt.Sprintf("%v IN (%v)", toQueryCondition(scope, relationship.ForeignDBNames), toQueryMarks(primaryKeys)),
toQueryValues(primaryKeys)...,
)
// only include those deleting relations
newDB = newDB.Where(
fmt.Sprintf("%v IN (%v)", toQueryCondition(scope, deletingResourcePrimaryDBNames), toQueryMarks(deletingPrimaryKeys)),
toQueryValues(deletingPrimaryKeys)...,
)
// set matched relation's foreign key to be null
fieldValue := reflect.New(association.field.Field.Type()).Interface()
association.setErr(newDB.Model(fieldValue).UpdateColumn(foreignKeyMap).Error)
}
}
// Remove deleted records from source's field
if association.Error == nil {
if field.Kind() == reflect.Slice {
leftValues := reflect.Zero(field.Type())
for i := 0; i < field.Len(); i++ {
reflectValue := field.Index(i)
primaryKey := scope.getColumnAsArray(deletingResourcePrimaryFieldNames, reflectValue.Interface())[0]
var isDeleted = false
for _, pk := range deletingPrimaryKeys {
if equalAsString(primaryKey, pk) {
isDeleted = true
break
}
}
if !isDeleted {
leftValues = reflect.Append(leftValues, reflectValue)
}
}
association.field.Set(leftValues)
} else if field.Kind() == reflect.Struct {
primaryKey := scope.getColumnAsArray(deletingResourcePrimaryFieldNames, field.Interface())[0]
for _, pk := range deletingPrimaryKeys {
if equalAsString(primaryKey, pk) {
association.field.Set(reflect.Zero(field.Type()))
break
}
}
}
}
return association
}
// Clear remove relationship between source & current associations, won't delete those associations
func (association *Association) Clear() *Association {
return association.Replace()
}
// Count return the count of current associations
func (association *Association) Count() int {
var (
count = 0
relationship = association.field.Relationship
scope = association.scope
fieldValue = association.field.Field.Interface()
query = scope.DB()
)
switch relationship.Kind {
case "many_to_many":
query = relationship.JoinTableHandler.JoinWith(relationship.JoinTableHandler, query, scope.Value)
case "has_many", "has_one":
primaryKeys := scope.getColumnAsArray(relationship.AssociationForeignFieldNames, scope.Value)
query = query.Where(
fmt.Sprintf("%v IN (%v)", toQueryCondition(scope, relationship.ForeignDBNames), toQueryMarks(primaryKeys)),
toQueryValues(primaryKeys)...,
)
case "belongs_to":
primaryKeys := scope.getColumnAsArray(relationship.ForeignFieldNames, scope.Value)
query = query.Where(
fmt.Sprintf("%v IN (%v)", toQueryCondition(scope, relationship.AssociationForeignDBNames), toQueryMarks(primaryKeys)),
toQueryValues(primaryKeys)...,
)
}
if relationship.PolymorphicType != "" {
query = query.Where(
fmt.Sprintf("%v.%v = ?", scope.New(fieldValue).QuotedTableName(), scope.Quote(relationship.PolymorphicDBName)),
relationship.PolymorphicValue,
)
}
if err := query.Model(fieldValue).Count(&count).Error; err != nil {
association.Error = err
}
return count
}
// saveAssociations save passed values as associations
func (association *Association) saveAssociations(values ...interface{}) *Association {
var (
scope = association.scope
field = association.field
relationship = field.Relationship
)
saveAssociation := func(reflectValue reflect.Value) {
// value has to been pointer
if reflectValue.Kind() != reflect.Ptr {
reflectPtr := reflect.New(reflectValue.Type())
reflectPtr.Elem().Set(reflectValue)
reflectValue = reflectPtr
}
// value has to been saved for many2many
if relationship.Kind == "many_to_many" {
if scope.New(reflectValue.Interface()).PrimaryKeyZero() {
association.setErr(scope.NewDB().Save(reflectValue.Interface()).Error)
}
}
// Assign Fields
var fieldType = field.Field.Type()
var setFieldBackToValue, setSliceFieldBackToValue bool
if reflectValue.Type().AssignableTo(fieldType) {
field.Set(reflectValue)
} else if reflectValue.Type().Elem().AssignableTo(fieldType) {
// if field's type is struct, then need to set value back to argument after save
setFieldBackToValue = true
field.Set(reflectValue.Elem())
} else if fieldType.Kind() == reflect.Slice {
if reflectValue.Type().AssignableTo(fieldType.Elem()) {
field.Set(reflect.Append(field.Field, reflectValue))
} else if reflectValue.Type().Elem().AssignableTo(fieldType.Elem()) {
// if field's type is slice of struct, then need to set value back to argument after save
setSliceFieldBackToValue = true
field.Set(reflect.Append(field.Field, reflectValue.Elem()))
}
}
if relationship.Kind == "many_to_many" {
association.setErr(relationship.JoinTableHandler.Add(relationship.JoinTableHandler, scope.NewDB(), scope.Value, reflectValue.Interface()))
} else {
association.setErr(scope.NewDB().Select(field.Name).Save(scope.Value).Error)
if setFieldBackToValue {
reflectValue.Elem().Set(field.Field)
} else if setSliceFieldBackToValue {
reflectValue.Elem().Set(field.Field.Index(field.Field.Len() - 1))
}
}
}
for _, value := range values {
reflectValue := reflect.ValueOf(value)
indirectReflectValue := reflect.Indirect(reflectValue)
if indirectReflectValue.Kind() == reflect.Struct {
saveAssociation(reflectValue)
} else if indirectReflectValue.Kind() == reflect.Slice {
for i := 0; i < indirectReflectValue.Len(); i++ {
saveAssociation(indirectReflectValue.Index(i))
}
} else {
association.setErr(errors.New("invalid value type"))
}
}
return association
}
// setErr set error when the error is not nil. And return Association.
func (association *Association) setErr(err error) *Association {
if err != nil {
association.Error = err
}
return association
}

250
vendor/github.com/jinzhu/gorm/callback.go generated vendored Normal file
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package gorm
import "fmt"
// DefaultCallback default callbacks defined by gorm
var DefaultCallback = &Callback{logger: nopLogger{}}
// Callback is a struct that contains all CRUD callbacks
// Field `creates` contains callbacks will be call when creating object
// Field `updates` contains callbacks will be call when updating object
// Field `deletes` contains callbacks will be call when deleting object
// Field `queries` contains callbacks will be call when querying object with query methods like Find, First, Related, Association...
// Field `rowQueries` contains callbacks will be call when querying object with Row, Rows...
// Field `processors` contains all callback processors, will be used to generate above callbacks in order
type Callback struct {
logger logger
creates []*func(scope *Scope)
updates []*func(scope *Scope)
deletes []*func(scope *Scope)
queries []*func(scope *Scope)
rowQueries []*func(scope *Scope)
processors []*CallbackProcessor
}
// CallbackProcessor contains callback informations
type CallbackProcessor struct {
logger logger
name string // current callback's name
before string // register current callback before a callback
after string // register current callback after a callback
replace bool // replace callbacks with same name
remove bool // delete callbacks with same name
kind string // callback type: create, update, delete, query, row_query
processor *func(scope *Scope) // callback handler
parent *Callback
}
func (c *Callback) clone(logger logger) *Callback {
return &Callback{
logger: logger,
creates: c.creates,
updates: c.updates,
deletes: c.deletes,
queries: c.queries,
rowQueries: c.rowQueries,
processors: c.processors,
}
}
// Create could be used to register callbacks for creating object
// db.Callback().Create().After("gorm:create").Register("plugin:run_after_create", func(*Scope) {
// // business logic
// ...
//
// // set error if some thing wrong happened, will rollback the creating
// scope.Err(errors.New("error"))
// })
func (c *Callback) Create() *CallbackProcessor {
return &CallbackProcessor{logger: c.logger, kind: "create", parent: c}
}
// Update could be used to register callbacks for updating object, refer `Create` for usage
func (c *Callback) Update() *CallbackProcessor {
return &CallbackProcessor{logger: c.logger, kind: "update", parent: c}
}
// Delete could be used to register callbacks for deleting object, refer `Create` for usage
func (c *Callback) Delete() *CallbackProcessor {
return &CallbackProcessor{logger: c.logger, kind: "delete", parent: c}
}
// Query could be used to register callbacks for querying objects with query methods like `Find`, `First`, `Related`, `Association`...
// Refer `Create` for usage
func (c *Callback) Query() *CallbackProcessor {
return &CallbackProcessor{logger: c.logger, kind: "query", parent: c}
}
// RowQuery could be used to register callbacks for querying objects with `Row`, `Rows`, refer `Create` for usage
func (c *Callback) RowQuery() *CallbackProcessor {
return &CallbackProcessor{logger: c.logger, kind: "row_query", parent: c}
}
// After insert a new callback after callback `callbackName`, refer `Callbacks.Create`
func (cp *CallbackProcessor) After(callbackName string) *CallbackProcessor {
cp.after = callbackName
return cp
}
// Before insert a new callback before callback `callbackName`, refer `Callbacks.Create`
func (cp *CallbackProcessor) Before(callbackName string) *CallbackProcessor {
cp.before = callbackName
return cp
}
// Register a new callback, refer `Callbacks.Create`
func (cp *CallbackProcessor) Register(callbackName string, callback func(scope *Scope)) {
if cp.kind == "row_query" {
if cp.before == "" && cp.after == "" && callbackName != "gorm:row_query" {
cp.logger.Print("info", fmt.Sprintf("Registering RowQuery callback %v without specify order with Before(), After(), applying Before('gorm:row_query') by default for compatibility...", callbackName))
cp.before = "gorm:row_query"
}
}
cp.logger.Print("info", fmt.Sprintf("[info] registering callback `%v` from %v", callbackName, fileWithLineNum()))
cp.name = callbackName
cp.processor = &callback
cp.parent.processors = append(cp.parent.processors, cp)
cp.parent.reorder()
}
// Remove a registered callback
// db.Callback().Create().Remove("gorm:update_time_stamp_when_create")
func (cp *CallbackProcessor) Remove(callbackName string) {
cp.logger.Print("info", fmt.Sprintf("[info] removing callback `%v` from %v", callbackName, fileWithLineNum()))
cp.name = callbackName
cp.remove = true
cp.parent.processors = append(cp.parent.processors, cp)
cp.parent.reorder()
}
// Replace a registered callback with new callback
// db.Callback().Create().Replace("gorm:update_time_stamp_when_create", func(*Scope) {
// scope.SetColumn("CreatedAt", now)
// scope.SetColumn("UpdatedAt", now)
// })
func (cp *CallbackProcessor) Replace(callbackName string, callback func(scope *Scope)) {
cp.logger.Print("info", fmt.Sprintf("[info] replacing callback `%v` from %v", callbackName, fileWithLineNum()))
cp.name = callbackName
cp.processor = &callback
cp.replace = true
cp.parent.processors = append(cp.parent.processors, cp)
cp.parent.reorder()
}
// Get registered callback
// db.Callback().Create().Get("gorm:create")
func (cp *CallbackProcessor) Get(callbackName string) (callback func(scope *Scope)) {
for _, p := range cp.parent.processors {
if p.name == callbackName && p.kind == cp.kind {
if p.remove {
callback = nil
} else {
callback = *p.processor
}
}
}
return
}
// getRIndex get right index from string slice
func getRIndex(strs []string, str string) int {
for i := len(strs) - 1; i >= 0; i-- {
if strs[i] == str {
return i
}
}
return -1
}
// sortProcessors sort callback processors based on its before, after, remove, replace
func sortProcessors(cps []*CallbackProcessor) []*func(scope *Scope) {
var (
allNames, sortedNames []string
sortCallbackProcessor func(c *CallbackProcessor)
)
for _, cp := range cps {
// show warning message the callback name already exists
if index := getRIndex(allNames, cp.name); index > -1 && !cp.replace && !cp.remove {
cp.logger.Print("warning", fmt.Sprintf("[warning] duplicated callback `%v` from %v", cp.name, fileWithLineNum()))
}
allNames = append(allNames, cp.name)
}
sortCallbackProcessor = func(c *CallbackProcessor) {
if getRIndex(sortedNames, c.name) == -1 { // if not sorted
if c.before != "" { // if defined before callback
if index := getRIndex(sortedNames, c.before); index != -1 {
// if before callback already sorted, append current callback just after it
sortedNames = append(sortedNames[:index], append([]string{c.name}, sortedNames[index:]...)...)
} else if index := getRIndex(allNames, c.before); index != -1 {
// if before callback exists but haven't sorted, append current callback to last
sortedNames = append(sortedNames, c.name)
sortCallbackProcessor(cps[index])
}
}
if c.after != "" { // if defined after callback
if index := getRIndex(sortedNames, c.after); index != -1 {
// if after callback already sorted, append current callback just before it
sortedNames = append(sortedNames[:index+1], append([]string{c.name}, sortedNames[index+1:]...)...)
} else if index := getRIndex(allNames, c.after); index != -1 {
// if after callback exists but haven't sorted
cp := cps[index]
// set after callback's before callback to current callback
if cp.before == "" {
cp.before = c.name
}
sortCallbackProcessor(cp)
}
}
// if current callback haven't been sorted, append it to last
if getRIndex(sortedNames, c.name) == -1 {
sortedNames = append(sortedNames, c.name)
}
}
}
for _, cp := range cps {
sortCallbackProcessor(cp)
}
var sortedFuncs []*func(scope *Scope)
for _, name := range sortedNames {
if index := getRIndex(allNames, name); !cps[index].remove {
sortedFuncs = append(sortedFuncs, cps[index].processor)
}
}
return sortedFuncs
}
// reorder all registered processors, and reset CRUD callbacks
func (c *Callback) reorder() {
var creates, updates, deletes, queries, rowQueries []*CallbackProcessor
for _, processor := range c.processors {
if processor.name != "" {
switch processor.kind {
case "create":
creates = append(creates, processor)
case "update":
updates = append(updates, processor)
case "delete":
deletes = append(deletes, processor)
case "query":
queries = append(queries, processor)
case "row_query":
rowQueries = append(rowQueries, processor)
}
}
}
c.creates = sortProcessors(creates)
c.updates = sortProcessors(updates)
c.deletes = sortProcessors(deletes)
c.queries = sortProcessors(queries)
c.rowQueries = sortProcessors(rowQueries)
}

197
vendor/github.com/jinzhu/gorm/callback_create.go generated vendored Normal file
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package gorm
import (
"fmt"
"strings"
)
// Define callbacks for creating
func init() {
DefaultCallback.Create().Register("gorm:begin_transaction", beginTransactionCallback)
DefaultCallback.Create().Register("gorm:before_create", beforeCreateCallback)
DefaultCallback.Create().Register("gorm:save_before_associations", saveBeforeAssociationsCallback)
DefaultCallback.Create().Register("gorm:update_time_stamp", updateTimeStampForCreateCallback)
DefaultCallback.Create().Register("gorm:create", createCallback)
DefaultCallback.Create().Register("gorm:force_reload_after_create", forceReloadAfterCreateCallback)
DefaultCallback.Create().Register("gorm:save_after_associations", saveAfterAssociationsCallback)
DefaultCallback.Create().Register("gorm:after_create", afterCreateCallback)
DefaultCallback.Create().Register("gorm:commit_or_rollback_transaction", commitOrRollbackTransactionCallback)
}
// beforeCreateCallback will invoke `BeforeSave`, `BeforeCreate` method before creating
func beforeCreateCallback(scope *Scope) {
if !scope.HasError() {
scope.CallMethod("BeforeSave")
}
if !scope.HasError() {
scope.CallMethod("BeforeCreate")
}
}
// updateTimeStampForCreateCallback will set `CreatedAt`, `UpdatedAt` when creating
func updateTimeStampForCreateCallback(scope *Scope) {
if !scope.HasError() {
now := scope.db.nowFunc()
if createdAtField, ok := scope.FieldByName("CreatedAt"); ok {
if createdAtField.IsBlank {
createdAtField.Set(now)
}
}
if updatedAtField, ok := scope.FieldByName("UpdatedAt"); ok {
if updatedAtField.IsBlank {
updatedAtField.Set(now)
}
}
}
}
// createCallback the callback used to insert data into database
func createCallback(scope *Scope) {
if !scope.HasError() {
defer scope.trace(NowFunc())
var (
columns, placeholders []string
blankColumnsWithDefaultValue []string
)
for _, field := range scope.Fields() {
if scope.changeableField(field) {
if field.IsNormal && !field.IsIgnored {
if field.IsBlank && field.HasDefaultValue {
blankColumnsWithDefaultValue = append(blankColumnsWithDefaultValue, scope.Quote(field.DBName))
scope.InstanceSet("gorm:blank_columns_with_default_value", blankColumnsWithDefaultValue)
} else if !field.IsPrimaryKey || !field.IsBlank {
columns = append(columns, scope.Quote(field.DBName))
placeholders = append(placeholders, scope.AddToVars(field.Field.Interface()))
}
} else if field.Relationship != nil && field.Relationship.Kind == "belongs_to" {
for _, foreignKey := range field.Relationship.ForeignDBNames {
if foreignField, ok := scope.FieldByName(foreignKey); ok && !scope.changeableField(foreignField) {
columns = append(columns, scope.Quote(foreignField.DBName))
placeholders = append(placeholders, scope.AddToVars(foreignField.Field.Interface()))
}
}
}
}
}
var (
returningColumn = "*"
quotedTableName = scope.QuotedTableName()
primaryField = scope.PrimaryField()
extraOption string
insertModifier string
)
if str, ok := scope.Get("gorm:insert_option"); ok {
extraOption = fmt.Sprint(str)
}
if str, ok := scope.Get("gorm:insert_modifier"); ok {
insertModifier = strings.ToUpper(fmt.Sprint(str))
if insertModifier == "INTO" {
insertModifier = ""
}
}
if primaryField != nil {
returningColumn = scope.Quote(primaryField.DBName)
}
lastInsertIDOutputInterstitial := scope.Dialect().LastInsertIDOutputInterstitial(quotedTableName, returningColumn, columns)
var lastInsertIDReturningSuffix string
if lastInsertIDOutputInterstitial == "" {
lastInsertIDReturningSuffix = scope.Dialect().LastInsertIDReturningSuffix(quotedTableName, returningColumn)
}
if len(columns) == 0 {
scope.Raw(fmt.Sprintf(
"INSERT%v INTO %v %v%v%v",
addExtraSpaceIfExist(insertModifier),
quotedTableName,
scope.Dialect().DefaultValueStr(),
addExtraSpaceIfExist(extraOption),
addExtraSpaceIfExist(lastInsertIDReturningSuffix),
))
} else {
scope.Raw(fmt.Sprintf(
"INSERT%v INTO %v (%v)%v VALUES (%v)%v%v",
addExtraSpaceIfExist(insertModifier),
scope.QuotedTableName(),
strings.Join(columns, ","),
addExtraSpaceIfExist(lastInsertIDOutputInterstitial),
strings.Join(placeholders, ","),
addExtraSpaceIfExist(extraOption),
addExtraSpaceIfExist(lastInsertIDReturningSuffix),
))
}
// execute create sql: no primaryField
if primaryField == nil {
if result, err := scope.SQLDB().Exec(scope.SQL, scope.SQLVars...); scope.Err(err) == nil {
// set rows affected count
scope.db.RowsAffected, _ = result.RowsAffected()
// set primary value to primary field
if primaryField != nil && primaryField.IsBlank {
if primaryValue, err := result.LastInsertId(); scope.Err(err) == nil {
scope.Err(primaryField.Set(primaryValue))
}
}
}
return
}
// execute create sql: lastInsertID implemention for majority of dialects
if lastInsertIDReturningSuffix == "" && lastInsertIDOutputInterstitial == "" {
if result, err := scope.SQLDB().Exec(scope.SQL, scope.SQLVars...); scope.Err(err) == nil {
// set rows affected count
scope.db.RowsAffected, _ = result.RowsAffected()
// set primary value to primary field
if primaryField != nil && primaryField.IsBlank {
if primaryValue, err := result.LastInsertId(); scope.Err(err) == nil {
scope.Err(primaryField.Set(primaryValue))
}
}
}
return
}
// execute create sql: dialects with additional lastInsertID requirements (currently postgres & mssql)
if primaryField.Field.CanAddr() {
if err := scope.SQLDB().QueryRow(scope.SQL, scope.SQLVars...).Scan(primaryField.Field.Addr().Interface()); scope.Err(err) == nil {
primaryField.IsBlank = false
scope.db.RowsAffected = 1
}
} else {
scope.Err(ErrUnaddressable)
}
return
}
}
// forceReloadAfterCreateCallback will reload columns that having default value, and set it back to current object
func forceReloadAfterCreateCallback(scope *Scope) {
if blankColumnsWithDefaultValue, ok := scope.InstanceGet("gorm:blank_columns_with_default_value"); ok {
db := scope.DB().New().Table(scope.TableName()).Select(blankColumnsWithDefaultValue.([]string))
for _, field := range scope.Fields() {
if field.IsPrimaryKey && !field.IsBlank {
db = db.Where(fmt.Sprintf("%v = ?", field.DBName), field.Field.Interface())
}
}
db.Scan(scope.Value)
}
}
// afterCreateCallback will invoke `AfterCreate`, `AfterSave` method after creating
func afterCreateCallback(scope *Scope) {
if !scope.HasError() {
scope.CallMethod("AfterCreate")
}
if !scope.HasError() {
scope.CallMethod("AfterSave")
}
}

63
vendor/github.com/jinzhu/gorm/callback_delete.go generated vendored Normal file
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package gorm
import (
"errors"
"fmt"
)
// Define callbacks for deleting
func init() {
DefaultCallback.Delete().Register("gorm:begin_transaction", beginTransactionCallback)
DefaultCallback.Delete().Register("gorm:before_delete", beforeDeleteCallback)
DefaultCallback.Delete().Register("gorm:delete", deleteCallback)
DefaultCallback.Delete().Register("gorm:after_delete", afterDeleteCallback)
DefaultCallback.Delete().Register("gorm:commit_or_rollback_transaction", commitOrRollbackTransactionCallback)
}
// beforeDeleteCallback will invoke `BeforeDelete` method before deleting
func beforeDeleteCallback(scope *Scope) {
if scope.DB().HasBlockGlobalUpdate() && !scope.hasConditions() {
scope.Err(errors.New("missing WHERE clause while deleting"))
return
}
if !scope.HasError() {
scope.CallMethod("BeforeDelete")
}
}
// deleteCallback used to delete data from database or set deleted_at to current time (when using with soft delete)
func deleteCallback(scope *Scope) {
if !scope.HasError() {
var extraOption string
if str, ok := scope.Get("gorm:delete_option"); ok {
extraOption = fmt.Sprint(str)
}
deletedAtField, hasDeletedAtField := scope.FieldByName("DeletedAt")
if !scope.Search.Unscoped && hasDeletedAtField {
scope.Raw(fmt.Sprintf(
"UPDATE %v SET %v=%v%v%v",
scope.QuotedTableName(),
scope.Quote(deletedAtField.DBName),
scope.AddToVars(scope.db.nowFunc()),
addExtraSpaceIfExist(scope.CombinedConditionSql()),
addExtraSpaceIfExist(extraOption),
)).Exec()
} else {
scope.Raw(fmt.Sprintf(
"DELETE FROM %v%v%v",
scope.QuotedTableName(),
addExtraSpaceIfExist(scope.CombinedConditionSql()),
addExtraSpaceIfExist(extraOption),
)).Exec()
}
}
}
// afterDeleteCallback will invoke `AfterDelete` method after deleting
func afterDeleteCallback(scope *Scope) {
if !scope.HasError() {
scope.CallMethod("AfterDelete")
}
}

109
vendor/github.com/jinzhu/gorm/callback_query.go generated vendored Normal file
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package gorm
import (
"errors"
"fmt"
"reflect"
)
// Define callbacks for querying
func init() {
DefaultCallback.Query().Register("gorm:query", queryCallback)
DefaultCallback.Query().Register("gorm:preload", preloadCallback)
DefaultCallback.Query().Register("gorm:after_query", afterQueryCallback)
}
// queryCallback used to query data from database
func queryCallback(scope *Scope) {
if _, skip := scope.InstanceGet("gorm:skip_query_callback"); skip {
return
}
//we are only preloading relations, dont touch base model
if _, skip := scope.InstanceGet("gorm:only_preload"); skip {
return
}
defer scope.trace(NowFunc())
var (
isSlice, isPtr bool
resultType reflect.Type
results = scope.IndirectValue()
)
if orderBy, ok := scope.Get("gorm:order_by_primary_key"); ok {
if primaryField := scope.PrimaryField(); primaryField != nil {
scope.Search.Order(fmt.Sprintf("%v.%v %v", scope.QuotedTableName(), scope.Quote(primaryField.DBName), orderBy))
}
}
if value, ok := scope.Get("gorm:query_destination"); ok {
results = indirect(reflect.ValueOf(value))
}
if kind := results.Kind(); kind == reflect.Slice {
isSlice = true
resultType = results.Type().Elem()
results.Set(reflect.MakeSlice(results.Type(), 0, 0))
if resultType.Kind() == reflect.Ptr {
isPtr = true
resultType = resultType.Elem()
}
} else if kind != reflect.Struct {
scope.Err(errors.New("unsupported destination, should be slice or struct"))
return
}
scope.prepareQuerySQL()
if !scope.HasError() {
scope.db.RowsAffected = 0
if str, ok := scope.Get("gorm:query_hint"); ok {
scope.SQL = fmt.Sprint(str) + scope.SQL
}
if str, ok := scope.Get("gorm:query_option"); ok {
scope.SQL += addExtraSpaceIfExist(fmt.Sprint(str))
}
if rows, err := scope.SQLDB().Query(scope.SQL, scope.SQLVars...); scope.Err(err) == nil {
defer rows.Close()
columns, _ := rows.Columns()
for rows.Next() {
scope.db.RowsAffected++
elem := results
if isSlice {
elem = reflect.New(resultType).Elem()
}
scope.scan(rows, columns, scope.New(elem.Addr().Interface()).Fields())
if isSlice {
if isPtr {
results.Set(reflect.Append(results, elem.Addr()))
} else {
results.Set(reflect.Append(results, elem))
}
}
}
if err := rows.Err(); err != nil {
scope.Err(err)
} else if scope.db.RowsAffected == 0 && !isSlice {
scope.Err(ErrRecordNotFound)
}
}
}
}
// afterQueryCallback will invoke `AfterFind` method after querying
func afterQueryCallback(scope *Scope) {
if !scope.HasError() {
scope.CallMethod("AfterFind")
}
}

410
vendor/github.com/jinzhu/gorm/callback_query_preload.go generated vendored Normal file
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package gorm
import (
"errors"
"fmt"
"reflect"
"strconv"
"strings"
)
// preloadCallback used to preload associations
func preloadCallback(scope *Scope) {
if _, skip := scope.InstanceGet("gorm:skip_query_callback"); skip {
return
}
if ap, ok := scope.Get("gorm:auto_preload"); ok {
// If gorm:auto_preload IS NOT a bool then auto preload.
// Else if it IS a bool, use the value
if apb, ok := ap.(bool); !ok {
autoPreload(scope)
} else if apb {
autoPreload(scope)
}
}
if scope.Search.preload == nil || scope.HasError() {
return
}
var (
preloadedMap = map[string]bool{}
fields = scope.Fields()
)
for _, preload := range scope.Search.preload {
var (
preloadFields = strings.Split(preload.schema, ".")
currentScope = scope
currentFields = fields
)
for idx, preloadField := range preloadFields {
var currentPreloadConditions []interface{}
if currentScope == nil {
continue
}
// if not preloaded
if preloadKey := strings.Join(preloadFields[:idx+1], "."); !preloadedMap[preloadKey] {
// assign search conditions to last preload
if idx == len(preloadFields)-1 {
currentPreloadConditions = preload.conditions
}
for _, field := range currentFields {
if field.Name != preloadField || field.Relationship == nil {
continue
}
switch field.Relationship.Kind {
case "has_one":
currentScope.handleHasOnePreload(field, currentPreloadConditions)
case "has_many":
currentScope.handleHasManyPreload(field, currentPreloadConditions)
case "belongs_to":
currentScope.handleBelongsToPreload(field, currentPreloadConditions)
case "many_to_many":
currentScope.handleManyToManyPreload(field, currentPreloadConditions)
default:
scope.Err(errors.New("unsupported relation"))
}
preloadedMap[preloadKey] = true
break
}
if !preloadedMap[preloadKey] {
scope.Err(fmt.Errorf("can't preload field %s for %s", preloadField, currentScope.GetModelStruct().ModelType))
return
}
}
// preload next level
if idx < len(preloadFields)-1 {
currentScope = currentScope.getColumnAsScope(preloadField)
if currentScope != nil {
currentFields = currentScope.Fields()
}
}
}
}
}
func autoPreload(scope *Scope) {
for _, field := range scope.Fields() {
if field.Relationship == nil {
continue
}
if val, ok := field.TagSettingsGet("PRELOAD"); ok {
if preload, err := strconv.ParseBool(val); err != nil {
scope.Err(errors.New("invalid preload option"))
return
} else if !preload {
continue
}
}
scope.Search.Preload(field.Name)
}
}
func (scope *Scope) generatePreloadDBWithConditions(conditions []interface{}) (*DB, []interface{}) {
var (
preloadDB = scope.NewDB()
preloadConditions []interface{}
)
for _, condition := range conditions {
if scopes, ok := condition.(func(*DB) *DB); ok {
preloadDB = scopes(preloadDB)
} else {
preloadConditions = append(preloadConditions, condition)
}
}
return preloadDB, preloadConditions
}
// handleHasOnePreload used to preload has one associations
func (scope *Scope) handleHasOnePreload(field *Field, conditions []interface{}) {
relation := field.Relationship
// get relations's primary keys
primaryKeys := scope.getColumnAsArray(relation.AssociationForeignFieldNames, scope.Value)
if len(primaryKeys) == 0 {
return
}
// preload conditions
preloadDB, preloadConditions := scope.generatePreloadDBWithConditions(conditions)
// find relations
query := fmt.Sprintf("%v IN (%v)", toQueryCondition(scope, relation.ForeignDBNames), toQueryMarks(primaryKeys))
values := toQueryValues(primaryKeys)
if relation.PolymorphicType != "" {
query += fmt.Sprintf(" AND %v = ?", scope.Quote(relation.PolymorphicDBName))
values = append(values, relation.PolymorphicValue)
}
results := makeSlice(field.Struct.Type)
scope.Err(preloadDB.Where(query, values...).Find(results, preloadConditions...).Error)
// assign find results
var (
resultsValue = indirect(reflect.ValueOf(results))
indirectScopeValue = scope.IndirectValue()
)
if indirectScopeValue.Kind() == reflect.Slice {
foreignValuesToResults := make(map[string]reflect.Value)
for i := 0; i < resultsValue.Len(); i++ {
result := resultsValue.Index(i)
foreignValues := toString(getValueFromFields(result, relation.ForeignFieldNames))
foreignValuesToResults[foreignValues] = result
}
for j := 0; j < indirectScopeValue.Len(); j++ {
indirectValue := indirect(indirectScopeValue.Index(j))
valueString := toString(getValueFromFields(indirectValue, relation.AssociationForeignFieldNames))
if result, found := foreignValuesToResults[valueString]; found {
indirectValue.FieldByName(field.Name).Set(result)
}
}
} else {
for i := 0; i < resultsValue.Len(); i++ {
result := resultsValue.Index(i)
scope.Err(field.Set(result))
}
}
}
// handleHasManyPreload used to preload has many associations
func (scope *Scope) handleHasManyPreload(field *Field, conditions []interface{}) {
relation := field.Relationship
// get relations's primary keys
primaryKeys := scope.getColumnAsArray(relation.AssociationForeignFieldNames, scope.Value)
if len(primaryKeys) == 0 {
return
}
// preload conditions
preloadDB, preloadConditions := scope.generatePreloadDBWithConditions(conditions)
// find relations
query := fmt.Sprintf("%v IN (%v)", toQueryCondition(scope, relation.ForeignDBNames), toQueryMarks(primaryKeys))
values := toQueryValues(primaryKeys)
if relation.PolymorphicType != "" {
query += fmt.Sprintf(" AND %v = ?", scope.Quote(relation.PolymorphicDBName))
values = append(values, relation.PolymorphicValue)
}
results := makeSlice(field.Struct.Type)
scope.Err(preloadDB.Where(query, values...).Find(results, preloadConditions...).Error)
// assign find results
var (
resultsValue = indirect(reflect.ValueOf(results))
indirectScopeValue = scope.IndirectValue()
)
if indirectScopeValue.Kind() == reflect.Slice {
preloadMap := make(map[string][]reflect.Value)
for i := 0; i < resultsValue.Len(); i++ {
result := resultsValue.Index(i)
foreignValues := getValueFromFields(result, relation.ForeignFieldNames)
preloadMap[toString(foreignValues)] = append(preloadMap[toString(foreignValues)], result)
}
for j := 0; j < indirectScopeValue.Len(); j++ {
object := indirect(indirectScopeValue.Index(j))
objectRealValue := getValueFromFields(object, relation.AssociationForeignFieldNames)
f := object.FieldByName(field.Name)
if results, ok := preloadMap[toString(objectRealValue)]; ok {
f.Set(reflect.Append(f, results...))
} else {
f.Set(reflect.MakeSlice(f.Type(), 0, 0))
}
}
} else {
scope.Err(field.Set(resultsValue))
}
}
// handleBelongsToPreload used to preload belongs to associations
func (scope *Scope) handleBelongsToPreload(field *Field, conditions []interface{}) {
relation := field.Relationship
// preload conditions
preloadDB, preloadConditions := scope.generatePreloadDBWithConditions(conditions)
// get relations's primary keys
primaryKeys := scope.getColumnAsArray(relation.ForeignFieldNames, scope.Value)
if len(primaryKeys) == 0 {
return
}
// find relations
results := makeSlice(field.Struct.Type)
scope.Err(preloadDB.Where(fmt.Sprintf("%v IN (%v)", toQueryCondition(scope, relation.AssociationForeignDBNames), toQueryMarks(primaryKeys)), toQueryValues(primaryKeys)...).Find(results, preloadConditions...).Error)
// assign find results
var (
resultsValue = indirect(reflect.ValueOf(results))
indirectScopeValue = scope.IndirectValue()
)
foreignFieldToObjects := make(map[string][]*reflect.Value)
if indirectScopeValue.Kind() == reflect.Slice {
for j := 0; j < indirectScopeValue.Len(); j++ {
object := indirect(indirectScopeValue.Index(j))
valueString := toString(getValueFromFields(object, relation.ForeignFieldNames))
foreignFieldToObjects[valueString] = append(foreignFieldToObjects[valueString], &object)
}
}
for i := 0; i < resultsValue.Len(); i++ {
result := resultsValue.Index(i)
if indirectScopeValue.Kind() == reflect.Slice {
valueString := toString(getValueFromFields(result, relation.AssociationForeignFieldNames))
if objects, found := foreignFieldToObjects[valueString]; found {
for _, object := range objects {
object.FieldByName(field.Name).Set(result)
}
}
} else {
scope.Err(field.Set(result))
}
}
}
// handleManyToManyPreload used to preload many to many associations
func (scope *Scope) handleManyToManyPreload(field *Field, conditions []interface{}) {
var (
relation = field.Relationship
joinTableHandler = relation.JoinTableHandler
fieldType = field.Struct.Type.Elem()
foreignKeyValue interface{}
foreignKeyType = reflect.ValueOf(&foreignKeyValue).Type()
linkHash = map[string][]reflect.Value{}
isPtr bool
)
if fieldType.Kind() == reflect.Ptr {
isPtr = true
fieldType = fieldType.Elem()
}
var sourceKeys = []string{}
for _, key := range joinTableHandler.SourceForeignKeys() {
sourceKeys = append(sourceKeys, key.DBName)
}
// preload conditions
preloadDB, preloadConditions := scope.generatePreloadDBWithConditions(conditions)
// generate query with join table
newScope := scope.New(reflect.New(fieldType).Interface())
preloadDB = preloadDB.Table(newScope.TableName()).Model(newScope.Value)
if len(preloadDB.search.selects) == 0 {
preloadDB = preloadDB.Select("*")
}
preloadDB = joinTableHandler.JoinWith(joinTableHandler, preloadDB, scope.Value)
// preload inline conditions
if len(preloadConditions) > 0 {
preloadDB = preloadDB.Where(preloadConditions[0], preloadConditions[1:]...)
}
rows, err := preloadDB.Rows()
if scope.Err(err) != nil {
return
}
defer rows.Close()
columns, _ := rows.Columns()
for rows.Next() {
var (
elem = reflect.New(fieldType).Elem()
fields = scope.New(elem.Addr().Interface()).Fields()
)
// register foreign keys in join tables
var joinTableFields []*Field
for _, sourceKey := range sourceKeys {
joinTableFields = append(joinTableFields, &Field{StructField: &StructField{DBName: sourceKey, IsNormal: true}, Field: reflect.New(foreignKeyType).Elem()})
}
scope.scan(rows, columns, append(fields, joinTableFields...))
scope.New(elem.Addr().Interface()).
InstanceSet("gorm:skip_query_callback", true).
callCallbacks(scope.db.parent.callbacks.queries)
var foreignKeys = make([]interface{}, len(sourceKeys))
// generate hashed forkey keys in join table
for idx, joinTableField := range joinTableFields {
if !joinTableField.Field.IsNil() {
foreignKeys[idx] = joinTableField.Field.Elem().Interface()
}
}
hashedSourceKeys := toString(foreignKeys)
if isPtr {
linkHash[hashedSourceKeys] = append(linkHash[hashedSourceKeys], elem.Addr())
} else {
linkHash[hashedSourceKeys] = append(linkHash[hashedSourceKeys], elem)
}
}
if err := rows.Err(); err != nil {
scope.Err(err)
}
// assign find results
var (
indirectScopeValue = scope.IndirectValue()
fieldsSourceMap = map[string][]reflect.Value{}
foreignFieldNames = []string{}
)
for _, dbName := range relation.ForeignFieldNames {
if field, ok := scope.FieldByName(dbName); ok {
foreignFieldNames = append(foreignFieldNames, field.Name)
}
}
if indirectScopeValue.Kind() == reflect.Slice {
for j := 0; j < indirectScopeValue.Len(); j++ {
object := indirect(indirectScopeValue.Index(j))
key := toString(getValueFromFields(object, foreignFieldNames))
fieldsSourceMap[key] = append(fieldsSourceMap[key], object.FieldByName(field.Name))
}
} else if indirectScopeValue.IsValid() {
key := toString(getValueFromFields(indirectScopeValue, foreignFieldNames))
fieldsSourceMap[key] = append(fieldsSourceMap[key], indirectScopeValue.FieldByName(field.Name))
}
for source, fields := range fieldsSourceMap {
for _, f := range fields {
//If not 0 this means Value is a pointer and we already added preloaded models to it
if f.Len() != 0 {
continue
}
v := reflect.MakeSlice(f.Type(), 0, 0)
if len(linkHash[source]) > 0 {
v = reflect.Append(f, linkHash[source]...)
}
f.Set(v)
}
}
}

41
vendor/github.com/jinzhu/gorm/callback_row_query.go generated vendored Normal file
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@ -0,0 +1,41 @@
package gorm
import (
"database/sql"
"fmt"
)
// Define callbacks for row query
func init() {
DefaultCallback.RowQuery().Register("gorm:row_query", rowQueryCallback)
}
type RowQueryResult struct {
Row *sql.Row
}
type RowsQueryResult struct {
Rows *sql.Rows
Error error
}
// queryCallback used to query data from database
func rowQueryCallback(scope *Scope) {
if result, ok := scope.InstanceGet("row_query_result"); ok {
scope.prepareQuerySQL()
if str, ok := scope.Get("gorm:query_hint"); ok {
scope.SQL = fmt.Sprint(str) + scope.SQL
}
if str, ok := scope.Get("gorm:query_option"); ok {
scope.SQL += addExtraSpaceIfExist(fmt.Sprint(str))
}
if rowResult, ok := result.(*RowQueryResult); ok {
rowResult.Row = scope.SQLDB().QueryRow(scope.SQL, scope.SQLVars...)
} else if rowsResult, ok := result.(*RowsQueryResult); ok {
rowsResult.Rows, rowsResult.Error = scope.SQLDB().Query(scope.SQL, scope.SQLVars...)
}
}
}

170
vendor/github.com/jinzhu/gorm/callback_save.go generated vendored Normal file
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package gorm
import (
"reflect"
"strings"
)
func beginTransactionCallback(scope *Scope) {
scope.Begin()
}
func commitOrRollbackTransactionCallback(scope *Scope) {
scope.CommitOrRollback()
}
func saveAssociationCheck(scope *Scope, field *Field) (autoUpdate bool, autoCreate bool, saveReference bool, r *Relationship) {
checkTruth := func(value interface{}) bool {
if v, ok := value.(bool); ok && !v {
return false
}
if v, ok := value.(string); ok {
v = strings.ToLower(v)
return v == "true"
}
return true
}
if scope.changeableField(field) && !field.IsBlank && !field.IsIgnored {
if r = field.Relationship; r != nil {
autoUpdate, autoCreate, saveReference = true, true, true
if value, ok := scope.Get("gorm:save_associations"); ok {
autoUpdate = checkTruth(value)
autoCreate = autoUpdate
saveReference = autoUpdate
} else if value, ok := field.TagSettingsGet("SAVE_ASSOCIATIONS"); ok {
autoUpdate = checkTruth(value)
autoCreate = autoUpdate
saveReference = autoUpdate
}
if value, ok := scope.Get("gorm:association_autoupdate"); ok {
autoUpdate = checkTruth(value)
} else if value, ok := field.TagSettingsGet("ASSOCIATION_AUTOUPDATE"); ok {
autoUpdate = checkTruth(value)
}
if value, ok := scope.Get("gorm:association_autocreate"); ok {
autoCreate = checkTruth(value)
} else if value, ok := field.TagSettingsGet("ASSOCIATION_AUTOCREATE"); ok {
autoCreate = checkTruth(value)
}
if value, ok := scope.Get("gorm:association_save_reference"); ok {
saveReference = checkTruth(value)
} else if value, ok := field.TagSettingsGet("ASSOCIATION_SAVE_REFERENCE"); ok {
saveReference = checkTruth(value)
}
}
}
return
}
func saveBeforeAssociationsCallback(scope *Scope) {
for _, field := range scope.Fields() {
autoUpdate, autoCreate, saveReference, relationship := saveAssociationCheck(scope, field)
if relationship != nil && relationship.Kind == "belongs_to" {
fieldValue := field.Field.Addr().Interface()
newScope := scope.New(fieldValue)
if newScope.PrimaryKeyZero() {
if autoCreate {
scope.Err(scope.NewDB().Save(fieldValue).Error)
}
} else if autoUpdate {
scope.Err(scope.NewDB().Save(fieldValue).Error)
}
if saveReference {
if len(relationship.ForeignFieldNames) != 0 {
// set value's foreign key
for idx, fieldName := range relationship.ForeignFieldNames {
associationForeignName := relationship.AssociationForeignDBNames[idx]
if foreignField, ok := scope.New(fieldValue).FieldByName(associationForeignName); ok {
scope.Err(scope.SetColumn(fieldName, foreignField.Field.Interface()))
}
}
}
}
}
}
}
func saveAfterAssociationsCallback(scope *Scope) {
for _, field := range scope.Fields() {
autoUpdate, autoCreate, saveReference, relationship := saveAssociationCheck(scope, field)
if relationship != nil && (relationship.Kind == "has_one" || relationship.Kind == "has_many" || relationship.Kind == "many_to_many") {
value := field.Field
switch value.Kind() {
case reflect.Slice:
for i := 0; i < value.Len(); i++ {
newDB := scope.NewDB()
elem := value.Index(i).Addr().Interface()
newScope := newDB.NewScope(elem)
if saveReference {
if relationship.JoinTableHandler == nil && len(relationship.ForeignFieldNames) != 0 {
for idx, fieldName := range relationship.ForeignFieldNames {
associationForeignName := relationship.AssociationForeignDBNames[idx]
if f, ok := scope.FieldByName(associationForeignName); ok {
scope.Err(newScope.SetColumn(fieldName, f.Field.Interface()))
}
}
}
if relationship.PolymorphicType != "" {
scope.Err(newScope.SetColumn(relationship.PolymorphicType, relationship.PolymorphicValue))
}
}
if newScope.PrimaryKeyZero() {
if autoCreate {
scope.Err(newDB.Save(elem).Error)
}
} else if autoUpdate {
scope.Err(newDB.Save(elem).Error)
}
if !scope.New(newScope.Value).PrimaryKeyZero() && saveReference {
if joinTableHandler := relationship.JoinTableHandler; joinTableHandler != nil {
scope.Err(joinTableHandler.Add(joinTableHandler, newDB, scope.Value, newScope.Value))
}
}
}
default:
elem := value.Addr().Interface()
newScope := scope.New(elem)
if saveReference {
if len(relationship.ForeignFieldNames) != 0 {
for idx, fieldName := range relationship.ForeignFieldNames {
associationForeignName := relationship.AssociationForeignDBNames[idx]
if f, ok := scope.FieldByName(associationForeignName); ok {
scope.Err(newScope.SetColumn(fieldName, f.Field.Interface()))
}
}
}
if relationship.PolymorphicType != "" {
scope.Err(newScope.SetColumn(relationship.PolymorphicType, relationship.PolymorphicValue))
}
}
if newScope.PrimaryKeyZero() {
if autoCreate {
scope.Err(scope.NewDB().Save(elem).Error)
}
} else if autoUpdate {
scope.Err(scope.NewDB().Save(elem).Error)
}
}
}
}
}

121
vendor/github.com/jinzhu/gorm/callback_update.go generated vendored Normal file
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package gorm
import (
"errors"
"fmt"
"sort"
"strings"
)
// Define callbacks for updating
func init() {
DefaultCallback.Update().Register("gorm:assign_updating_attributes", assignUpdatingAttributesCallback)
DefaultCallback.Update().Register("gorm:begin_transaction", beginTransactionCallback)
DefaultCallback.Update().Register("gorm:before_update", beforeUpdateCallback)
DefaultCallback.Update().Register("gorm:save_before_associations", saveBeforeAssociationsCallback)
DefaultCallback.Update().Register("gorm:update_time_stamp", updateTimeStampForUpdateCallback)
DefaultCallback.Update().Register("gorm:update", updateCallback)
DefaultCallback.Update().Register("gorm:save_after_associations", saveAfterAssociationsCallback)
DefaultCallback.Update().Register("gorm:after_update", afterUpdateCallback)
DefaultCallback.Update().Register("gorm:commit_or_rollback_transaction", commitOrRollbackTransactionCallback)
}
// assignUpdatingAttributesCallback assign updating attributes to model
func assignUpdatingAttributesCallback(scope *Scope) {
if attrs, ok := scope.InstanceGet("gorm:update_interface"); ok {
if updateMaps, hasUpdate := scope.updatedAttrsWithValues(attrs); hasUpdate {
scope.InstanceSet("gorm:update_attrs", updateMaps)
} else {
scope.SkipLeft()
}
}
}
// beforeUpdateCallback will invoke `BeforeSave`, `BeforeUpdate` method before updating
func beforeUpdateCallback(scope *Scope) {
if scope.DB().HasBlockGlobalUpdate() && !scope.hasConditions() {
scope.Err(errors.New("missing WHERE clause while updating"))
return
}
if _, ok := scope.Get("gorm:update_column"); !ok {
if !scope.HasError() {
scope.CallMethod("BeforeSave")
}
if !scope.HasError() {
scope.CallMethod("BeforeUpdate")
}
}
}
// updateTimeStampForUpdateCallback will set `UpdatedAt` when updating
func updateTimeStampForUpdateCallback(scope *Scope) {
if _, ok := scope.Get("gorm:update_column"); !ok {
scope.SetColumn("UpdatedAt", scope.db.nowFunc())
}
}
// updateCallback the callback used to update data to database
func updateCallback(scope *Scope) {
if !scope.HasError() {
var sqls []string
if updateAttrs, ok := scope.InstanceGet("gorm:update_attrs"); ok {
// Sort the column names so that the generated SQL is the same every time.
updateMap := updateAttrs.(map[string]interface{})
var columns []string
for c := range updateMap {
columns = append(columns, c)
}
sort.Strings(columns)
for _, column := range columns {
value := updateMap[column]
sqls = append(sqls, fmt.Sprintf("%v = %v", scope.Quote(column), scope.AddToVars(value)))
}
} else {
for _, field := range scope.Fields() {
if scope.changeableField(field) {
if !field.IsPrimaryKey && field.IsNormal && (field.Name != "CreatedAt" || !field.IsBlank) {
if !field.IsForeignKey || !field.IsBlank || !field.HasDefaultValue {
sqls = append(sqls, fmt.Sprintf("%v = %v", scope.Quote(field.DBName), scope.AddToVars(field.Field.Interface())))
}
} else if relationship := field.Relationship; relationship != nil && relationship.Kind == "belongs_to" {
for _, foreignKey := range relationship.ForeignDBNames {
if foreignField, ok := scope.FieldByName(foreignKey); ok && !scope.changeableField(foreignField) {
sqls = append(sqls,
fmt.Sprintf("%v = %v", scope.Quote(foreignField.DBName), scope.AddToVars(foreignField.Field.Interface())))
}
}
}
}
}
}
var extraOption string
if str, ok := scope.Get("gorm:update_option"); ok {
extraOption = fmt.Sprint(str)
}
if len(sqls) > 0 {
scope.Raw(fmt.Sprintf(
"UPDATE %v SET %v%v%v",
scope.QuotedTableName(),
strings.Join(sqls, ", "),
addExtraSpaceIfExist(scope.CombinedConditionSql()),
addExtraSpaceIfExist(extraOption),
)).Exec()
}
}
}
// afterUpdateCallback will invoke `AfterUpdate`, `AfterSave` method after updating
func afterUpdateCallback(scope *Scope) {
if _, ok := scope.Get("gorm:update_column"); !ok {
if !scope.HasError() {
scope.CallMethod("AfterUpdate")
}
if !scope.HasError() {
scope.CallMethod("AfterSave")
}
}
}

147
vendor/github.com/jinzhu/gorm/dialect.go generated vendored Normal file
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package gorm
import (
"database/sql"
"fmt"
"reflect"
"strconv"
"strings"
)
// Dialect interface contains behaviors that differ across SQL database
type Dialect interface {
// GetName get dialect's name
GetName() string
// SetDB set db for dialect
SetDB(db SQLCommon)
// BindVar return the placeholder for actual values in SQL statements, in many dbs it is "?", Postgres using $1
BindVar(i int) string
// Quote quotes field name to avoid SQL parsing exceptions by using a reserved word as a field name
Quote(key string) string
// DataTypeOf return data's sql type
DataTypeOf(field *StructField) string
// HasIndex check has index or not
HasIndex(tableName string, indexName string) bool
// HasForeignKey check has foreign key or not
HasForeignKey(tableName string, foreignKeyName string) bool
// RemoveIndex remove index
RemoveIndex(tableName string, indexName string) error
// HasTable check has table or not
HasTable(tableName string) bool
// HasColumn check has column or not
HasColumn(tableName string, columnName string) bool
// ModifyColumn modify column's type
ModifyColumn(tableName string, columnName string, typ string) error
// LimitAndOffsetSQL return generated SQL with Limit and Offset, as mssql has special case
LimitAndOffsetSQL(limit, offset interface{}) (string, error)
// SelectFromDummyTable return select values, for most dbs, `SELECT values` just works, mysql needs `SELECT value FROM DUAL`
SelectFromDummyTable() string
// LastInsertIDOutputInterstitial most dbs support LastInsertId, but mssql needs to use `OUTPUT`
LastInsertIDOutputInterstitial(tableName, columnName string, columns []string) string
// LastInsertIdReturningSuffix most dbs support LastInsertId, but postgres needs to use `RETURNING`
LastInsertIDReturningSuffix(tableName, columnName string) string
// DefaultValueStr
DefaultValueStr() string
// BuildKeyName returns a valid key name (foreign key, index key) for the given table, field and reference
BuildKeyName(kind, tableName string, fields ...string) string
// NormalizeIndexAndColumn returns valid index name and column name depending on each dialect
NormalizeIndexAndColumn(indexName, columnName string) (string, string)
// CurrentDatabase return current database name
CurrentDatabase() string
}
var dialectsMap = map[string]Dialect{}
func newDialect(name string, db SQLCommon) Dialect {
if value, ok := dialectsMap[name]; ok {
dialect := reflect.New(reflect.TypeOf(value).Elem()).Interface().(Dialect)
dialect.SetDB(db)
return dialect
}
fmt.Printf("`%v` is not officially supported, running under compatibility mode.\n", name)
commontDialect := &commonDialect{}
commontDialect.SetDB(db)
return commontDialect
}
// RegisterDialect register new dialect
func RegisterDialect(name string, dialect Dialect) {
dialectsMap[name] = dialect
}
// GetDialect gets the dialect for the specified dialect name
func GetDialect(name string) (dialect Dialect, ok bool) {
dialect, ok = dialectsMap[name]
return
}
// ParseFieldStructForDialect get field's sql data type
var ParseFieldStructForDialect = func(field *StructField, dialect Dialect) (fieldValue reflect.Value, sqlType string, size int, additionalType string) {
// Get redirected field type
var (
reflectType = field.Struct.Type
dataType, _ = field.TagSettingsGet("TYPE")
)
for reflectType.Kind() == reflect.Ptr {
reflectType = reflectType.Elem()
}
// Get redirected field value
fieldValue = reflect.Indirect(reflect.New(reflectType))
if gormDataType, ok := fieldValue.Interface().(interface {
GormDataType(Dialect) string
}); ok {
dataType = gormDataType.GormDataType(dialect)
}
// Get scanner's real value
if dataType == "" {
var getScannerValue func(reflect.Value)
getScannerValue = func(value reflect.Value) {
fieldValue = value
if _, isScanner := reflect.New(fieldValue.Type()).Interface().(sql.Scanner); isScanner && fieldValue.Kind() == reflect.Struct {
getScannerValue(fieldValue.Field(0))
}
}
getScannerValue(fieldValue)
}
// Default Size
if num, ok := field.TagSettingsGet("SIZE"); ok {
size, _ = strconv.Atoi(num)
} else {
size = 255
}
// Default type from tag setting
notNull, _ := field.TagSettingsGet("NOT NULL")
unique, _ := field.TagSettingsGet("UNIQUE")
additionalType = notNull + " " + unique
if value, ok := field.TagSettingsGet("DEFAULT"); ok {
additionalType = additionalType + " DEFAULT " + value
}
if value, ok := field.TagSettingsGet("COMMENT"); ok {
additionalType = additionalType + " COMMENT " + value
}
return fieldValue, dataType, size, strings.TrimSpace(additionalType)
}
func currentDatabaseAndTable(dialect Dialect, tableName string) (string, string) {
if strings.Contains(tableName, ".") {
splitStrings := strings.SplitN(tableName, ".", 2)
return splitStrings[0], splitStrings[1]
}
return dialect.CurrentDatabase(), tableName
}

196
vendor/github.com/jinzhu/gorm/dialect_common.go generated vendored Normal file
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package gorm
import (
"fmt"
"reflect"
"regexp"
"strconv"
"strings"
"time"
)
var keyNameRegex = regexp.MustCompile("[^a-zA-Z0-9]+")
// DefaultForeignKeyNamer contains the default foreign key name generator method
type DefaultForeignKeyNamer struct {
}
type commonDialect struct {
db SQLCommon
DefaultForeignKeyNamer
}
func init() {
RegisterDialect("common", &commonDialect{})
}
func (commonDialect) GetName() string {
return "common"
}
func (s *commonDialect) SetDB(db SQLCommon) {
s.db = db
}
func (commonDialect) BindVar(i int) string {
return "$$$" // ?
}
func (commonDialect) Quote(key string) string {
return fmt.Sprintf(`"%s"`, key)
}
func (s *commonDialect) fieldCanAutoIncrement(field *StructField) bool {
if value, ok := field.TagSettingsGet("AUTO_INCREMENT"); ok {
return strings.ToLower(value) != "false"
}
return field.IsPrimaryKey
}
func (s *commonDialect) DataTypeOf(field *StructField) string {
var dataValue, sqlType, size, additionalType = ParseFieldStructForDialect(field, s)
if sqlType == "" {
switch dataValue.Kind() {
case reflect.Bool:
sqlType = "BOOLEAN"
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uintptr:
if s.fieldCanAutoIncrement(field) {
sqlType = "INTEGER AUTO_INCREMENT"
} else {
sqlType = "INTEGER"
}
case reflect.Int64, reflect.Uint64:
if s.fieldCanAutoIncrement(field) {
sqlType = "BIGINT AUTO_INCREMENT"
} else {
sqlType = "BIGINT"
}
case reflect.Float32, reflect.Float64:
sqlType = "FLOAT"
case reflect.String:
if size > 0 && size < 65532 {
sqlType = fmt.Sprintf("VARCHAR(%d)", size)
} else {
sqlType = "VARCHAR(65532)"
}
case reflect.Struct:
if _, ok := dataValue.Interface().(time.Time); ok {
sqlType = "TIMESTAMP"
}
default:
if _, ok := dataValue.Interface().([]byte); ok {
if size > 0 && size < 65532 {
sqlType = fmt.Sprintf("BINARY(%d)", size)
} else {
sqlType = "BINARY(65532)"
}
}
}
}
if sqlType == "" {
panic(fmt.Sprintf("invalid sql type %s (%s) for commonDialect", dataValue.Type().Name(), dataValue.Kind().String()))
}
if strings.TrimSpace(additionalType) == "" {
return sqlType
}
return fmt.Sprintf("%v %v", sqlType, additionalType)
}
func (s commonDialect) HasIndex(tableName string, indexName string) bool {
var count int
currentDatabase, tableName := currentDatabaseAndTable(&s, tableName)
s.db.QueryRow("SELECT count(*) FROM INFORMATION_SCHEMA.STATISTICS WHERE table_schema = ? AND table_name = ? AND index_name = ?", currentDatabase, tableName, indexName).Scan(&count)
return count > 0
}
func (s commonDialect) RemoveIndex(tableName string, indexName string) error {
_, err := s.db.Exec(fmt.Sprintf("DROP INDEX %v", indexName))
return err
}
func (s commonDialect) HasForeignKey(tableName string, foreignKeyName string) bool {
return false
}
func (s commonDialect) HasTable(tableName string) bool {
var count int
currentDatabase, tableName := currentDatabaseAndTable(&s, tableName)
s.db.QueryRow("SELECT count(*) FROM INFORMATION_SCHEMA.TABLES WHERE table_schema = ? AND table_name = ?", currentDatabase, tableName).Scan(&count)
return count > 0
}
func (s commonDialect) HasColumn(tableName string, columnName string) bool {
var count int
currentDatabase, tableName := currentDatabaseAndTable(&s, tableName)
s.db.QueryRow("SELECT count(*) FROM INFORMATION_SCHEMA.COLUMNS WHERE table_schema = ? AND table_name = ? AND column_name = ?", currentDatabase, tableName, columnName).Scan(&count)
return count > 0
}
func (s commonDialect) ModifyColumn(tableName string, columnName string, typ string) error {
_, err := s.db.Exec(fmt.Sprintf("ALTER TABLE %v ALTER COLUMN %v TYPE %v", tableName, columnName, typ))
return err
}
func (s commonDialect) CurrentDatabase() (name string) {
s.db.QueryRow("SELECT DATABASE()").Scan(&name)
return
}
// LimitAndOffsetSQL return generated SQL with Limit and Offset
func (s commonDialect) LimitAndOffsetSQL(limit, offset interface{}) (sql string, err error) {
if limit != nil {
if parsedLimit, err := s.parseInt(limit); err != nil {
return "", err
} else if parsedLimit >= 0 {
sql += fmt.Sprintf(" LIMIT %d", parsedLimit)
}
}
if offset != nil {
if parsedOffset, err := s.parseInt(offset); err != nil {
return "", err
} else if parsedOffset >= 0 {
sql += fmt.Sprintf(" OFFSET %d", parsedOffset)
}
}
return
}
func (commonDialect) SelectFromDummyTable() string {
return ""
}
func (commonDialect) LastInsertIDOutputInterstitial(tableName, columnName string, columns []string) string {
return ""
}
func (commonDialect) LastInsertIDReturningSuffix(tableName, columnName string) string {
return ""
}
func (commonDialect) DefaultValueStr() string {
return "DEFAULT VALUES"
}
// BuildKeyName returns a valid key name (foreign key, index key) for the given table, field and reference
func (DefaultForeignKeyNamer) BuildKeyName(kind, tableName string, fields ...string) string {
keyName := fmt.Sprintf("%s_%s_%s", kind, tableName, strings.Join(fields, "_"))
keyName = keyNameRegex.ReplaceAllString(keyName, "_")
return keyName
}
// NormalizeIndexAndColumn returns argument's index name and column name without doing anything
func (commonDialect) NormalizeIndexAndColumn(indexName, columnName string) (string, string) {
return indexName, columnName
}
func (commonDialect) parseInt(value interface{}) (int64, error) {
return strconv.ParseInt(fmt.Sprint(value), 0, 0)
}
// IsByteArrayOrSlice returns true of the reflected value is an array or slice
func IsByteArrayOrSlice(value reflect.Value) bool {
return (value.Kind() == reflect.Array || value.Kind() == reflect.Slice) && value.Type().Elem() == reflect.TypeOf(uint8(0))
}

246
vendor/github.com/jinzhu/gorm/dialect_mysql.go generated vendored Normal file
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@ -0,0 +1,246 @@
package gorm
import (
"crypto/sha1"
"database/sql"
"fmt"
"reflect"
"regexp"
"strings"
"time"
"unicode/utf8"
)
var mysqlIndexRegex = regexp.MustCompile(`^(.+)\((\d+)\)$`)
type mysql struct {
commonDialect
}
func init() {
RegisterDialect("mysql", &mysql{})
}
func (mysql) GetName() string {
return "mysql"
}
func (mysql) Quote(key string) string {
return fmt.Sprintf("`%s`", key)
}
// Get Data Type for MySQL Dialect
func (s *mysql) DataTypeOf(field *StructField) string {
var dataValue, sqlType, size, additionalType = ParseFieldStructForDialect(field, s)
// MySQL allows only one auto increment column per table, and it must
// be a KEY column.
if _, ok := field.TagSettingsGet("AUTO_INCREMENT"); ok {
if _, ok = field.TagSettingsGet("INDEX"); !ok && !field.IsPrimaryKey {
field.TagSettingsDelete("AUTO_INCREMENT")
}
}
if sqlType == "" {
switch dataValue.Kind() {
case reflect.Bool:
sqlType = "boolean"
case reflect.Int8:
if s.fieldCanAutoIncrement(field) {
field.TagSettingsSet("AUTO_INCREMENT", "AUTO_INCREMENT")
sqlType = "tinyint AUTO_INCREMENT"
} else {
sqlType = "tinyint"
}
case reflect.Int, reflect.Int16, reflect.Int32:
if s.fieldCanAutoIncrement(field) {
field.TagSettingsSet("AUTO_INCREMENT", "AUTO_INCREMENT")
sqlType = "int AUTO_INCREMENT"
} else {
sqlType = "int"
}
case reflect.Uint8:
if s.fieldCanAutoIncrement(field) {
field.TagSettingsSet("AUTO_INCREMENT", "AUTO_INCREMENT")
sqlType = "tinyint unsigned AUTO_INCREMENT"
} else {
sqlType = "tinyint unsigned"
}
case reflect.Uint, reflect.Uint16, reflect.Uint32, reflect.Uintptr:
if s.fieldCanAutoIncrement(field) {
field.TagSettingsSet("AUTO_INCREMENT", "AUTO_INCREMENT")
sqlType = "int unsigned AUTO_INCREMENT"
} else {
sqlType = "int unsigned"
}
case reflect.Int64:
if s.fieldCanAutoIncrement(field) {
field.TagSettingsSet("AUTO_INCREMENT", "AUTO_INCREMENT")
sqlType = "bigint AUTO_INCREMENT"
} else {
sqlType = "bigint"
}
case reflect.Uint64:
if s.fieldCanAutoIncrement(field) {
field.TagSettingsSet("AUTO_INCREMENT", "AUTO_INCREMENT")
sqlType = "bigint unsigned AUTO_INCREMENT"
} else {
sqlType = "bigint unsigned"
}
case reflect.Float32, reflect.Float64:
sqlType = "double"
case reflect.String:
if size > 0 && size < 65532 {
sqlType = fmt.Sprintf("varchar(%d)", size)
} else {
sqlType = "longtext"
}
case reflect.Struct:
if _, ok := dataValue.Interface().(time.Time); ok {
precision := ""
if p, ok := field.TagSettingsGet("PRECISION"); ok {
precision = fmt.Sprintf("(%s)", p)
}
if _, ok := field.TagSettings["NOT NULL"]; ok || field.IsPrimaryKey {
sqlType = fmt.Sprintf("DATETIME%v", precision)
} else {
sqlType = fmt.Sprintf("DATETIME%v NULL", precision)
}
}
default:
if IsByteArrayOrSlice(dataValue) {
if size > 0 && size < 65532 {
sqlType = fmt.Sprintf("varbinary(%d)", size)
} else {
sqlType = "longblob"
}
}
}
}
if sqlType == "" {
panic(fmt.Sprintf("invalid sql type %s (%s) in field %s for mysql", dataValue.Type().Name(), dataValue.Kind().String(), field.Name))
}
if strings.TrimSpace(additionalType) == "" {
return sqlType
}
return fmt.Sprintf("%v %v", sqlType, additionalType)
}
func (s mysql) RemoveIndex(tableName string, indexName string) error {
_, err := s.db.Exec(fmt.Sprintf("DROP INDEX %v ON %v", indexName, s.Quote(tableName)))
return err
}
func (s mysql) ModifyColumn(tableName string, columnName string, typ string) error {
_, err := s.db.Exec(fmt.Sprintf("ALTER TABLE %v MODIFY COLUMN %v %v", tableName, columnName, typ))
return err
}
func (s mysql) LimitAndOffsetSQL(limit, offset interface{}) (sql string, err error) {
if limit != nil {
parsedLimit, err := s.parseInt(limit)
if err != nil {
return "", err
}
if parsedLimit >= 0 {
sql += fmt.Sprintf(" LIMIT %d", parsedLimit)
if offset != nil {
parsedOffset, err := s.parseInt(offset)
if err != nil {
return "", err
}
if parsedOffset >= 0 {
sql += fmt.Sprintf(" OFFSET %d", parsedOffset)
}
}
}
}
return
}
func (s mysql) HasForeignKey(tableName string, foreignKeyName string) bool {
var count int
currentDatabase, tableName := currentDatabaseAndTable(&s, tableName)
s.db.QueryRow("SELECT count(*) FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS WHERE CONSTRAINT_SCHEMA=? AND TABLE_NAME=? AND CONSTRAINT_NAME=? AND CONSTRAINT_TYPE='FOREIGN KEY'", currentDatabase, tableName, foreignKeyName).Scan(&count)
return count > 0
}
func (s mysql) HasTable(tableName string) bool {
currentDatabase, tableName := currentDatabaseAndTable(&s, tableName)
var name string
// allow mysql database name with '-' character
if err := s.db.QueryRow(fmt.Sprintf("SHOW TABLES FROM `%s` WHERE `Tables_in_%s` = ?", currentDatabase, currentDatabase), tableName).Scan(&name); err != nil {
if err == sql.ErrNoRows {
return false
}
panic(err)
} else {
return true
}
}
func (s mysql) HasIndex(tableName string, indexName string) bool {
currentDatabase, tableName := currentDatabaseAndTable(&s, tableName)
if rows, err := s.db.Query(fmt.Sprintf("SHOW INDEXES FROM `%s` FROM `%s` WHERE Key_name = ?", tableName, currentDatabase), indexName); err != nil {
panic(err)
} else {
defer rows.Close()
return rows.Next()
}
}
func (s mysql) HasColumn(tableName string, columnName string) bool {
currentDatabase, tableName := currentDatabaseAndTable(&s, tableName)
if rows, err := s.db.Query(fmt.Sprintf("SHOW COLUMNS FROM `%s` FROM `%s` WHERE Field = ?", tableName, currentDatabase), columnName); err != nil {
panic(err)
} else {
defer rows.Close()
return rows.Next()
}
}
func (s mysql) CurrentDatabase() (name string) {
s.db.QueryRow("SELECT DATABASE()").Scan(&name)
return
}
func (mysql) SelectFromDummyTable() string {
return "FROM DUAL"
}
func (s mysql) BuildKeyName(kind, tableName string, fields ...string) string {
keyName := s.commonDialect.BuildKeyName(kind, tableName, fields...)
if utf8.RuneCountInString(keyName) <= 64 {
return keyName
}
h := sha1.New()
h.Write([]byte(keyName))
bs := h.Sum(nil)
// sha1 is 40 characters, keep first 24 characters of destination
destRunes := []rune(keyNameRegex.ReplaceAllString(fields[0], "_"))
if len(destRunes) > 24 {
destRunes = destRunes[:24]
}
return fmt.Sprintf("%s%x", string(destRunes), bs)
}
// NormalizeIndexAndColumn returns index name and column name for specify an index prefix length if needed
func (mysql) NormalizeIndexAndColumn(indexName, columnName string) (string, string) {
submatch := mysqlIndexRegex.FindStringSubmatch(indexName)
if len(submatch) != 3 {
return indexName, columnName
}
indexName = submatch[1]
columnName = fmt.Sprintf("%s(%s)", columnName, submatch[2])
return indexName, columnName
}
func (mysql) DefaultValueStr() string {
return "VALUES()"
}

147
vendor/github.com/jinzhu/gorm/dialect_postgres.go generated vendored Normal file
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@ -0,0 +1,147 @@
package gorm
import (
"encoding/json"
"fmt"
"reflect"
"strings"
"time"
)
type postgres struct {
commonDialect
}
func init() {
RegisterDialect("postgres", &postgres{})
RegisterDialect("cloudsqlpostgres", &postgres{})
}
func (postgres) GetName() string {
return "postgres"
}
func (postgres) BindVar(i int) string {
return fmt.Sprintf("$%v", i)
}
func (s *postgres) DataTypeOf(field *StructField) string {
var dataValue, sqlType, size, additionalType = ParseFieldStructForDialect(field, s)
if sqlType == "" {
switch dataValue.Kind() {
case reflect.Bool:
sqlType = "boolean"
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uintptr:
if s.fieldCanAutoIncrement(field) {
field.TagSettingsSet("AUTO_INCREMENT", "AUTO_INCREMENT")
sqlType = "serial"
} else {
sqlType = "integer"
}
case reflect.Int64, reflect.Uint32, reflect.Uint64:
if s.fieldCanAutoIncrement(field) {
field.TagSettingsSet("AUTO_INCREMENT", "AUTO_INCREMENT")
sqlType = "bigserial"
} else {
sqlType = "bigint"
}
case reflect.Float32, reflect.Float64:
sqlType = "numeric"
case reflect.String:
if _, ok := field.TagSettingsGet("SIZE"); !ok {
size = 0 // if SIZE haven't been set, use `text` as the default type, as there are no performance different
}
if size > 0 && size < 65532 {
sqlType = fmt.Sprintf("varchar(%d)", size)
} else {
sqlType = "text"
}
case reflect.Struct:
if _, ok := dataValue.Interface().(time.Time); ok {
sqlType = "timestamp with time zone"
}
case reflect.Map:
if dataValue.Type().Name() == "Hstore" {
sqlType = "hstore"
}
default:
if IsByteArrayOrSlice(dataValue) {
sqlType = "bytea"
if isUUID(dataValue) {
sqlType = "uuid"
}
if isJSON(dataValue) {
sqlType = "jsonb"
}
}
}
}
if sqlType == "" {
panic(fmt.Sprintf("invalid sql type %s (%s) for postgres", dataValue.Type().Name(), dataValue.Kind().String()))
}
if strings.TrimSpace(additionalType) == "" {
return sqlType
}
return fmt.Sprintf("%v %v", sqlType, additionalType)
}
func (s postgres) HasIndex(tableName string, indexName string) bool {
var count int
s.db.QueryRow("SELECT count(*) FROM pg_indexes WHERE tablename = $1 AND indexname = $2 AND schemaname = CURRENT_SCHEMA()", tableName, indexName).Scan(&count)
return count > 0
}
func (s postgres) HasForeignKey(tableName string, foreignKeyName string) bool {
var count int
s.db.QueryRow("SELECT count(con.conname) FROM pg_constraint con WHERE $1::regclass::oid = con.conrelid AND con.conname = $2 AND con.contype='f'", tableName, foreignKeyName).Scan(&count)
return count > 0
}
func (s postgres) HasTable(tableName string) bool {
var count int
s.db.QueryRow("SELECT count(*) FROM INFORMATION_SCHEMA.tables WHERE table_name = $1 AND table_type = 'BASE TABLE' AND table_schema = CURRENT_SCHEMA()", tableName).Scan(&count)
return count > 0
}
func (s postgres) HasColumn(tableName string, columnName string) bool {
var count int
s.db.QueryRow("SELECT count(*) FROM INFORMATION_SCHEMA.columns WHERE table_name = $1 AND column_name = $2 AND table_schema = CURRENT_SCHEMA()", tableName, columnName).Scan(&count)
return count > 0
}
func (s postgres) CurrentDatabase() (name string) {
s.db.QueryRow("SELECT CURRENT_DATABASE()").Scan(&name)
return
}
func (s postgres) LastInsertIDOutputInterstitial(tableName, key string, columns []string) string {
return ""
}
func (s postgres) LastInsertIDReturningSuffix(tableName, key string) string {
return fmt.Sprintf("RETURNING %v.%v", tableName, key)
}
func (postgres) SupportLastInsertID() bool {
return false
}
func isUUID(value reflect.Value) bool {
if value.Kind() != reflect.Array || value.Type().Len() != 16 {
return false
}
typename := value.Type().Name()
lower := strings.ToLower(typename)
return "uuid" == lower || "guid" == lower
}
func isJSON(value reflect.Value) bool {
_, ok := value.Interface().(json.RawMessage)
return ok
}

107
vendor/github.com/jinzhu/gorm/dialect_sqlite3.go generated vendored Normal file
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@ -0,0 +1,107 @@
package gorm
import (
"fmt"
"reflect"
"strings"
"time"
)
type sqlite3 struct {
commonDialect
}
func init() {
RegisterDialect("sqlite3", &sqlite3{})
}
func (sqlite3) GetName() string {
return "sqlite3"
}
// Get Data Type for Sqlite Dialect
func (s *sqlite3) DataTypeOf(field *StructField) string {
var dataValue, sqlType, size, additionalType = ParseFieldStructForDialect(field, s)
if sqlType == "" {
switch dataValue.Kind() {
case reflect.Bool:
sqlType = "bool"
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uintptr:
if s.fieldCanAutoIncrement(field) {
field.TagSettingsSet("AUTO_INCREMENT", "AUTO_INCREMENT")
sqlType = "integer primary key autoincrement"
} else {
sqlType = "integer"
}
case reflect.Int64, reflect.Uint64:
if s.fieldCanAutoIncrement(field) {
field.TagSettingsSet("AUTO_INCREMENT", "AUTO_INCREMENT")
sqlType = "integer primary key autoincrement"
} else {
sqlType = "bigint"
}
case reflect.Float32, reflect.Float64:
sqlType = "real"
case reflect.String:
if size > 0 && size < 65532 {
sqlType = fmt.Sprintf("varchar(%d)", size)
} else {
sqlType = "text"
}
case reflect.Struct:
if _, ok := dataValue.Interface().(time.Time); ok {
sqlType = "datetime"
}
default:
if IsByteArrayOrSlice(dataValue) {
sqlType = "blob"
}
}
}
if sqlType == "" {
panic(fmt.Sprintf("invalid sql type %s (%s) for sqlite3", dataValue.Type().Name(), dataValue.Kind().String()))
}
if strings.TrimSpace(additionalType) == "" {
return sqlType
}
return fmt.Sprintf("%v %v", sqlType, additionalType)
}
func (s sqlite3) HasIndex(tableName string, indexName string) bool {
var count int
s.db.QueryRow(fmt.Sprintf("SELECT count(*) FROM sqlite_master WHERE tbl_name = ? AND sql LIKE '%%INDEX %v ON%%'", indexName), tableName).Scan(&count)
return count > 0
}
func (s sqlite3) HasTable(tableName string) bool {
var count int
s.db.QueryRow("SELECT count(*) FROM sqlite_master WHERE type='table' AND name=?", tableName).Scan(&count)
return count > 0
}
func (s sqlite3) HasColumn(tableName string, columnName string) bool {
var count int
s.db.QueryRow(fmt.Sprintf("SELECT count(*) FROM sqlite_master WHERE tbl_name = ? AND (sql LIKE '%%\"%v\" %%' OR sql LIKE '%%%v %%');\n", columnName, columnName), tableName).Scan(&count)
return count > 0
}
func (s sqlite3) CurrentDatabase() (name string) {
var (
ifaces = make([]interface{}, 3)
pointers = make([]*string, 3)
i int
)
for i = 0; i < 3; i++ {
ifaces[i] = &pointers[i]
}
if err := s.db.QueryRow("PRAGMA database_list").Scan(ifaces...); err != nil {
return
}
if pointers[1] != nil {
name = *pointers[1]
}
return
}

30
vendor/github.com/jinzhu/gorm/docker-compose.yml generated vendored Normal file
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@ -0,0 +1,30 @@
version: '3'
services:
mysql:
image: 'mysql:latest'
ports:
- 9910:3306
environment:
- MYSQL_DATABASE=gorm
- MYSQL_USER=gorm
- MYSQL_PASSWORD=gorm
- MYSQL_RANDOM_ROOT_PASSWORD="yes"
postgres:
image: 'postgres:latest'
ports:
- 9920:5432
environment:
- POSTGRES_USER=gorm
- POSTGRES_DB=gorm
- POSTGRES_PASSWORD=gorm
mssql:
image: 'mcmoe/mssqldocker:latest'
ports:
- 9930:1433
environment:
- ACCEPT_EULA=Y
- SA_PASSWORD=LoremIpsum86
- MSSQL_DB=gorm
- MSSQL_USER=gorm
- MSSQL_PASSWORD=LoremIpsum86

72
vendor/github.com/jinzhu/gorm/errors.go generated vendored Normal file
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@ -0,0 +1,72 @@
package gorm
import (
"errors"
"strings"
)
var (
// ErrRecordNotFound returns a "record not found error". Occurs only when attempting to query the database with a struct; querying with a slice won't return this error
ErrRecordNotFound = errors.New("record not found")
// ErrInvalidSQL occurs when you attempt a query with invalid SQL
ErrInvalidSQL = errors.New("invalid SQL")
// ErrInvalidTransaction occurs when you are trying to `Commit` or `Rollback`
ErrInvalidTransaction = errors.New("no valid transaction")
// ErrCantStartTransaction can't start transaction when you are trying to start one with `Begin`
ErrCantStartTransaction = errors.New("can't start transaction")
// ErrUnaddressable unaddressable value
ErrUnaddressable = errors.New("using unaddressable value")
)
// Errors contains all happened errors
type Errors []error
// IsRecordNotFoundError returns true if error contains a RecordNotFound error
func IsRecordNotFoundError(err error) bool {
if errs, ok := err.(Errors); ok {
for _, err := range errs {
if err == ErrRecordNotFound {
return true
}
}
}
return err == ErrRecordNotFound
}
// GetErrors gets all errors that have occurred and returns a slice of errors (Error type)
func (errs Errors) GetErrors() []error {
return errs
}
// Add adds an error to a given slice of errors
func (errs Errors) Add(newErrors ...error) Errors {
for _, err := range newErrors {
if err == nil {
continue
}
if errors, ok := err.(Errors); ok {
errs = errs.Add(errors...)
} else {
ok = true
for _, e := range errs {
if err == e {
ok = false
}
}
if ok {
errs = append(errs, err)
}
}
}
return errs
}
// Error takes a slice of all errors that have occurred and returns it as a formatted string
func (errs Errors) Error() string {
var errors = []string{}
for _, e := range errs {
errors = append(errors, e.Error())
}
return strings.Join(errors, "; ")
}

66
vendor/github.com/jinzhu/gorm/field.go generated vendored Normal file
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@ -0,0 +1,66 @@
package gorm
import (
"database/sql"
"database/sql/driver"
"errors"
"fmt"
"reflect"
)
// Field model field definition
type Field struct {
*StructField
IsBlank bool
Field reflect.Value
}
// Set set a value to the field
func (field *Field) Set(value interface{}) (err error) {
if !field.Field.IsValid() {
return errors.New("field value not valid")
}
if !field.Field.CanAddr() {
return ErrUnaddressable
}
reflectValue, ok := value.(reflect.Value)
if !ok {
reflectValue = reflect.ValueOf(value)
}
fieldValue := field.Field
if reflectValue.IsValid() {
if reflectValue.Type().ConvertibleTo(fieldValue.Type()) {
fieldValue.Set(reflectValue.Convert(fieldValue.Type()))
} else {
if fieldValue.Kind() == reflect.Ptr {
if fieldValue.IsNil() {
fieldValue.Set(reflect.New(field.Struct.Type.Elem()))
}
fieldValue = fieldValue.Elem()
}
if reflectValue.Type().ConvertibleTo(fieldValue.Type()) {
fieldValue.Set(reflectValue.Convert(fieldValue.Type()))
} else if scanner, ok := fieldValue.Addr().Interface().(sql.Scanner); ok {
v := reflectValue.Interface()
if valuer, ok := v.(driver.Valuer); ok {
if v, err = valuer.Value(); err == nil {
err = scanner.Scan(v)
}
} else {
err = scanner.Scan(v)
}
} else {
err = fmt.Errorf("could not convert argument of field %s from %s to %s", field.Name, reflectValue.Type(), fieldValue.Type())
}
}
} else {
field.Field.Set(reflect.Zero(field.Field.Type()))
}
field.IsBlank = isBlank(field.Field)
return err
}

15
vendor/github.com/jinzhu/gorm/go.mod generated vendored Normal file
View File

@ -0,0 +1,15 @@
module github.com/jinzhu/gorm
go 1.12
require (
github.com/denisenkom/go-mssqldb v0.0.0-20191124224453-732737034ffd
github.com/erikstmartin/go-testdb v0.0.0-20160219214506-8d10e4a1bae5
github.com/go-sql-driver/mysql v1.4.1
github.com/jinzhu/inflection v1.0.0
github.com/jinzhu/now v1.0.1
github.com/lib/pq v1.1.1
github.com/mattn/go-sqlite3 v2.0.1+incompatible
golang.org/x/crypto v0.0.0-20191205180655-e7c4368fe9dd // indirect
google.golang.org/appengine v1.4.0 // indirect
)

29
vendor/github.com/jinzhu/gorm/go.sum generated vendored Normal file
View File

@ -0,0 +1,29 @@
github.com/denisenkom/go-mssqldb v0.0.0-20191124224453-732737034ffd h1:83Wprp6ROGeiHFAP8WJdI2RoxALQYgdllERc3N5N2DM=
github.com/denisenkom/go-mssqldb v0.0.0-20191124224453-732737034ffd/go.mod h1:xbL0rPBG9cCiLr28tMa8zpbdarY27NDyej4t/EjAShU=
github.com/erikstmartin/go-testdb v0.0.0-20160219214506-8d10e4a1bae5 h1:Yzb9+7DPaBjB8zlTR87/ElzFsnQfuHnVUVqpZZIcV5Y=
github.com/erikstmartin/go-testdb v0.0.0-20160219214506-8d10e4a1bae5/go.mod h1:a2zkGnVExMxdzMo3M0Hi/3sEU+cWnZpSni0O6/Yb/P0=
github.com/go-sql-driver/mysql v1.4.1 h1:g24URVg0OFbNUTx9qqY1IRZ9D9z3iPyi5zKhQZpNwpA=
github.com/go-sql-driver/mysql v1.4.1/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
github.com/golang-sql/civil v0.0.0-20190719163853-cb61b32ac6fe h1:lXe2qZdvpiX5WZkZR4hgp4KJVfY3nMkvmwbVkpv1rVY=
github.com/golang-sql/civil v0.0.0-20190719163853-cb61b32ac6fe/go.mod h1:8vg3r2VgvsThLBIFL93Qb5yWzgyZWhEmBwUJWevAkK0=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
github.com/jinzhu/now v1.0.1 h1:HjfetcXq097iXP0uoPCdnM4Efp5/9MsM0/M+XOTeR3M=
github.com/jinzhu/now v1.0.1/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
github.com/lib/pq v1.1.1 h1:sJZmqHoEaY7f+NPP8pgLB/WxulyR3fewgCM2qaSlBb4=
github.com/lib/pq v1.1.1/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
github.com/mattn/go-sqlite3 v2.0.1+incompatible h1:xQ15muvnzGBHpIpdrNi1DA5x0+TcBZzsIDwmw9uTHzw=
github.com/mattn/go-sqlite3 v2.0.1+incompatible/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20190325154230-a5d413f7728c h1:Vj5n4GlwjmQteupaxJ9+0FNOmBrHfq7vN4btdGoDZgI=
golang.org/x/crypto v0.0.0-20190325154230-a5d413f7728c/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20191205180655-e7c4368fe9dd h1:GGJVjV8waZKRHrgwvtH66z9ZGVurTD1MT0n1Bb+q4aM=
golang.org/x/crypto v0.0.0-20191205180655-e7c4368fe9dd/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
google.golang.org/appengine v1.4.0 h1:/wp5JvzpHIxhs/dumFmF7BXTf3Z+dd4uXta4kVyO508=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=

24
vendor/github.com/jinzhu/gorm/interface.go generated vendored Normal file
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package gorm
import (
"context"
"database/sql"
)
// SQLCommon is the minimal database connection functionality gorm requires. Implemented by *sql.DB.
type SQLCommon interface {
Exec(query string, args ...interface{}) (sql.Result, error)
Prepare(query string) (*sql.Stmt, error)
Query(query string, args ...interface{}) (*sql.Rows, error)
QueryRow(query string, args ...interface{}) *sql.Row
}
type sqlDb interface {
Begin() (*sql.Tx, error)
BeginTx(ctx context.Context, opts *sql.TxOptions) (*sql.Tx, error)
}
type sqlTx interface {
Commit() error
Rollback() error
}

211
vendor/github.com/jinzhu/gorm/join_table_handler.go generated vendored Normal file
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package gorm
import (
"errors"
"fmt"
"reflect"
"strings"
)
// JoinTableHandlerInterface is an interface for how to handle many2many relations
type JoinTableHandlerInterface interface {
// initialize join table handler
Setup(relationship *Relationship, tableName string, source reflect.Type, destination reflect.Type)
// Table return join table's table name
Table(db *DB) string
// Add create relationship in join table for source and destination
Add(handler JoinTableHandlerInterface, db *DB, source interface{}, destination interface{}) error
// Delete delete relationship in join table for sources
Delete(handler JoinTableHandlerInterface, db *DB, sources ...interface{}) error
// JoinWith query with `Join` conditions
JoinWith(handler JoinTableHandlerInterface, db *DB, source interface{}) *DB
// SourceForeignKeys return source foreign keys
SourceForeignKeys() []JoinTableForeignKey
// DestinationForeignKeys return destination foreign keys
DestinationForeignKeys() []JoinTableForeignKey
}
// JoinTableForeignKey join table foreign key struct
type JoinTableForeignKey struct {
DBName string
AssociationDBName string
}
// JoinTableSource is a struct that contains model type and foreign keys
type JoinTableSource struct {
ModelType reflect.Type
ForeignKeys []JoinTableForeignKey
}
// JoinTableHandler default join table handler
type JoinTableHandler struct {
TableName string `sql:"-"`
Source JoinTableSource `sql:"-"`
Destination JoinTableSource `sql:"-"`
}
// SourceForeignKeys return source foreign keys
func (s *JoinTableHandler) SourceForeignKeys() []JoinTableForeignKey {
return s.Source.ForeignKeys
}
// DestinationForeignKeys return destination foreign keys
func (s *JoinTableHandler) DestinationForeignKeys() []JoinTableForeignKey {
return s.Destination.ForeignKeys
}
// Setup initialize a default join table handler
func (s *JoinTableHandler) Setup(relationship *Relationship, tableName string, source reflect.Type, destination reflect.Type) {
s.TableName = tableName
s.Source = JoinTableSource{ModelType: source}
s.Source.ForeignKeys = []JoinTableForeignKey{}
for idx, dbName := range relationship.ForeignFieldNames {
s.Source.ForeignKeys = append(s.Source.ForeignKeys, JoinTableForeignKey{
DBName: relationship.ForeignDBNames[idx],
AssociationDBName: dbName,
})
}
s.Destination = JoinTableSource{ModelType: destination}
s.Destination.ForeignKeys = []JoinTableForeignKey{}
for idx, dbName := range relationship.AssociationForeignFieldNames {
s.Destination.ForeignKeys = append(s.Destination.ForeignKeys, JoinTableForeignKey{
DBName: relationship.AssociationForeignDBNames[idx],
AssociationDBName: dbName,
})
}
}
// Table return join table's table name
func (s JoinTableHandler) Table(db *DB) string {
return DefaultTableNameHandler(db, s.TableName)
}
func (s JoinTableHandler) updateConditionMap(conditionMap map[string]interface{}, db *DB, joinTableSources []JoinTableSource, sources ...interface{}) {
for _, source := range sources {
scope := db.NewScope(source)
modelType := scope.GetModelStruct().ModelType
for _, joinTableSource := range joinTableSources {
if joinTableSource.ModelType == modelType {
for _, foreignKey := range joinTableSource.ForeignKeys {
if field, ok := scope.FieldByName(foreignKey.AssociationDBName); ok {
conditionMap[foreignKey.DBName] = field.Field.Interface()
}
}
break
}
}
}
}
// Add create relationship in join table for source and destination
func (s JoinTableHandler) Add(handler JoinTableHandlerInterface, db *DB, source interface{}, destination interface{}) error {
var (
scope = db.NewScope("")
conditionMap = map[string]interface{}{}
)
// Update condition map for source
s.updateConditionMap(conditionMap, db, []JoinTableSource{s.Source}, source)
// Update condition map for destination
s.updateConditionMap(conditionMap, db, []JoinTableSource{s.Destination}, destination)
var assignColumns, binVars, conditions []string
var values []interface{}
for key, value := range conditionMap {
assignColumns = append(assignColumns, scope.Quote(key))
binVars = append(binVars, `?`)
conditions = append(conditions, fmt.Sprintf("%v = ?", scope.Quote(key)))
values = append(values, value)
}
for _, value := range values {
values = append(values, value)
}
quotedTable := scope.Quote(handler.Table(db))
sql := fmt.Sprintf(
"INSERT INTO %v (%v) SELECT %v %v WHERE NOT EXISTS (SELECT * FROM %v WHERE %v)",
quotedTable,
strings.Join(assignColumns, ","),
strings.Join(binVars, ","),
scope.Dialect().SelectFromDummyTable(),
quotedTable,
strings.Join(conditions, " AND "),
)
return db.Exec(sql, values...).Error
}
// Delete delete relationship in join table for sources
func (s JoinTableHandler) Delete(handler JoinTableHandlerInterface, db *DB, sources ...interface{}) error {
var (
scope = db.NewScope(nil)
conditions []string
values []interface{}
conditionMap = map[string]interface{}{}
)
s.updateConditionMap(conditionMap, db, []JoinTableSource{s.Source, s.Destination}, sources...)
for key, value := range conditionMap {
conditions = append(conditions, fmt.Sprintf("%v = ?", scope.Quote(key)))
values = append(values, value)
}
return db.Table(handler.Table(db)).Where(strings.Join(conditions, " AND "), values...).Delete("").Error
}
// JoinWith query with `Join` conditions
func (s JoinTableHandler) JoinWith(handler JoinTableHandlerInterface, db *DB, source interface{}) *DB {
var (
scope = db.NewScope(source)
tableName = handler.Table(db)
quotedTableName = scope.Quote(tableName)
joinConditions []string
values []interface{}
)
if s.Source.ModelType == scope.GetModelStruct().ModelType {
destinationTableName := db.NewScope(reflect.New(s.Destination.ModelType).Interface()).QuotedTableName()
for _, foreignKey := range s.Destination.ForeignKeys {
joinConditions = append(joinConditions, fmt.Sprintf("%v.%v = %v.%v", quotedTableName, scope.Quote(foreignKey.DBName), destinationTableName, scope.Quote(foreignKey.AssociationDBName)))
}
var foreignDBNames []string
var foreignFieldNames []string
for _, foreignKey := range s.Source.ForeignKeys {
foreignDBNames = append(foreignDBNames, foreignKey.DBName)
if field, ok := scope.FieldByName(foreignKey.AssociationDBName); ok {
foreignFieldNames = append(foreignFieldNames, field.Name)
}
}
foreignFieldValues := scope.getColumnAsArray(foreignFieldNames, scope.Value)
var condString string
if len(foreignFieldValues) > 0 {
var quotedForeignDBNames []string
for _, dbName := range foreignDBNames {
quotedForeignDBNames = append(quotedForeignDBNames, tableName+"."+dbName)
}
condString = fmt.Sprintf("%v IN (%v)", toQueryCondition(scope, quotedForeignDBNames), toQueryMarks(foreignFieldValues))
keys := scope.getColumnAsArray(foreignFieldNames, scope.Value)
values = append(values, toQueryValues(keys))
} else {
condString = fmt.Sprintf("1 <> 1")
}
return db.Joins(fmt.Sprintf("INNER JOIN %v ON %v", quotedTableName, strings.Join(joinConditions, " AND "))).
Where(condString, toQueryValues(foreignFieldValues)...)
}
db.Error = errors.New("wrong source type for join table handler")
return db
}

141
vendor/github.com/jinzhu/gorm/logger.go generated vendored Normal file
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package gorm
import (
"database/sql/driver"
"fmt"
"log"
"os"
"reflect"
"regexp"
"strconv"
"time"
"unicode"
)
var (
defaultLogger = Logger{log.New(os.Stdout, "\r\n", 0)}
sqlRegexp = regexp.MustCompile(`\?`)
numericPlaceHolderRegexp = regexp.MustCompile(`\$\d+`)
)
func isPrintable(s string) bool {
for _, r := range s {
if !unicode.IsPrint(r) {
return false
}
}
return true
}
var LogFormatter = func(values ...interface{}) (messages []interface{}) {
if len(values) > 1 {
var (
sql string
formattedValues []string
level = values[0]
currentTime = "\n\033[33m[" + NowFunc().Format("2006-01-02 15:04:05") + "]\033[0m"
source = fmt.Sprintf("\033[35m(%v)\033[0m", values[1])
)
messages = []interface{}{source, currentTime}
if len(values) == 2 {
//remove the line break
currentTime = currentTime[1:]
//remove the brackets
source = fmt.Sprintf("\033[35m%v\033[0m", values[1])
messages = []interface{}{currentTime, source}
}
if level == "sql" {
// duration
messages = append(messages, fmt.Sprintf(" \033[36;1m[%.2fms]\033[0m ", float64(values[2].(time.Duration).Nanoseconds()/1e4)/100.0))
// sql
for _, value := range values[4].([]interface{}) {
indirectValue := reflect.Indirect(reflect.ValueOf(value))
if indirectValue.IsValid() {
value = indirectValue.Interface()
if t, ok := value.(time.Time); ok {
if t.IsZero() {
formattedValues = append(formattedValues, fmt.Sprintf("'%v'", "0000-00-00 00:00:00"))
} else {
formattedValues = append(formattedValues, fmt.Sprintf("'%v'", t.Format("2006-01-02 15:04:05")))
}
} else if b, ok := value.([]byte); ok {
if str := string(b); isPrintable(str) {
formattedValues = append(formattedValues, fmt.Sprintf("'%v'", str))
} else {
formattedValues = append(formattedValues, "'<binary>'")
}
} else if r, ok := value.(driver.Valuer); ok {
if value, err := r.Value(); err == nil && value != nil {
formattedValues = append(formattedValues, fmt.Sprintf("'%v'", value))
} else {
formattedValues = append(formattedValues, "NULL")
}
} else {
switch value.(type) {
case int, int8, int16, int32, int64, uint, uint8, uint16, uint32, uint64, float32, float64, bool:
formattedValues = append(formattedValues, fmt.Sprintf("%v", value))
default:
formattedValues = append(formattedValues, fmt.Sprintf("'%v'", value))
}
}
} else {
formattedValues = append(formattedValues, "NULL")
}
}
// differentiate between $n placeholders or else treat like ?
if numericPlaceHolderRegexp.MatchString(values[3].(string)) {
sql = values[3].(string)
for index, value := range formattedValues {
placeholder := fmt.Sprintf(`\$%d([^\d]|$)`, index+1)
sql = regexp.MustCompile(placeholder).ReplaceAllString(sql, value+"$1")
}
} else {
formattedValuesLength := len(formattedValues)
for index, value := range sqlRegexp.Split(values[3].(string), -1) {
sql += value
if index < formattedValuesLength {
sql += formattedValues[index]
}
}
}
messages = append(messages, sql)
messages = append(messages, fmt.Sprintf(" \n\033[36;31m[%v]\033[0m ", strconv.FormatInt(values[5].(int64), 10)+" rows affected or returned "))
} else {
messages = append(messages, "\033[31;1m")
messages = append(messages, values[2:]...)
messages = append(messages, "\033[0m")
}
}
return
}
type logger interface {
Print(v ...interface{})
}
// LogWriter log writer interface
type LogWriter interface {
Println(v ...interface{})
}
// Logger default logger
type Logger struct {
LogWriter
}
// Print format & print log
func (logger Logger) Print(values ...interface{}) {
logger.Println(LogFormatter(values...)...)
}
type nopLogger struct{}
func (nopLogger) Print(values ...interface{}) {}

881
vendor/github.com/jinzhu/gorm/main.go generated vendored Normal file
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@ -0,0 +1,881 @@
package gorm
import (
"context"
"database/sql"
"errors"
"fmt"
"reflect"
"strings"
"sync"
"time"
)
// DB contains information for current db connection
type DB struct {
sync.RWMutex
Value interface{}
Error error
RowsAffected int64
// single db
db SQLCommon
blockGlobalUpdate bool
logMode logModeValue
logger logger
search *search
values sync.Map
// global db
parent *DB
callbacks *Callback
dialect Dialect
singularTable bool
// function to be used to override the creating of a new timestamp
nowFuncOverride func() time.Time
}
type logModeValue int
const (
defaultLogMode logModeValue = iota
noLogMode
detailedLogMode
)
// Open initialize a new db connection, need to import driver first, e.g:
//
// import _ "github.com/go-sql-driver/mysql"
// func main() {
// db, err := gorm.Open("mysql", "user:password@/dbname?charset=utf8&parseTime=True&loc=Local")
// }
// GORM has wrapped some drivers, for easier to remember driver's import path, so you could import the mysql driver with
// import _ "github.com/jinzhu/gorm/dialects/mysql"
// // import _ "github.com/jinzhu/gorm/dialects/postgres"
// // import _ "github.com/jinzhu/gorm/dialects/sqlite"
// // import _ "github.com/jinzhu/gorm/dialects/mssql"
func Open(dialect string, args ...interface{}) (db *DB, err error) {
if len(args) == 0 {
err = errors.New("invalid database source")
return nil, err
}
var source string
var dbSQL SQLCommon
var ownDbSQL bool
switch value := args[0].(type) {
case string:
var driver = dialect
if len(args) == 1 {
source = value
} else if len(args) >= 2 {
driver = value
source = args[1].(string)
}
dbSQL, err = sql.Open(driver, source)
ownDbSQL = true
case SQLCommon:
dbSQL = value
ownDbSQL = false
default:
return nil, fmt.Errorf("invalid database source: %v is not a valid type", value)
}
db = &DB{
db: dbSQL,
logger: defaultLogger,
callbacks: DefaultCallback,
dialect: newDialect(dialect, dbSQL),
}
db.parent = db
if err != nil {
return
}
// Send a ping to make sure the database connection is alive.
if d, ok := dbSQL.(*sql.DB); ok {
if err = d.Ping(); err != nil && ownDbSQL {
d.Close()
}
}
return
}
// New clone a new db connection without search conditions
func (s *DB) New() *DB {
clone := s.clone()
clone.search = nil
clone.Value = nil
return clone
}
type closer interface {
Close() error
}
// Close close current db connection. If database connection is not an io.Closer, returns an error.
func (s *DB) Close() error {
if db, ok := s.parent.db.(closer); ok {
return db.Close()
}
return errors.New("can't close current db")
}
// DB get `*sql.DB` from current connection
// If the underlying database connection is not a *sql.DB, returns nil
func (s *DB) DB() *sql.DB {
db, ok := s.db.(*sql.DB)
if !ok {
panic("can't support full GORM on currently status, maybe this is a TX instance.")
}
return db
}
// CommonDB return the underlying `*sql.DB` or `*sql.Tx` instance, mainly intended to allow coexistence with legacy non-GORM code.
func (s *DB) CommonDB() SQLCommon {
return s.db
}
// Dialect get dialect
func (s *DB) Dialect() Dialect {
return s.dialect
}
// Callback return `Callbacks` container, you could add/change/delete callbacks with it
// db.Callback().Create().Register("update_created_at", updateCreated)
// Refer https://jinzhu.github.io/gorm/development.html#callbacks
func (s *DB) Callback() *Callback {
s.parent.callbacks = s.parent.callbacks.clone(s.logger)
return s.parent.callbacks
}
// SetLogger replace default logger
func (s *DB) SetLogger(log logger) {
s.logger = log
}
// LogMode set log mode, `true` for detailed logs, `false` for no log, default, will only print error logs
func (s *DB) LogMode(enable bool) *DB {
if enable {
s.logMode = detailedLogMode
} else {
s.logMode = noLogMode
}
return s
}
// SetNowFuncOverride set the function to be used when creating a new timestamp
func (s *DB) SetNowFuncOverride(nowFuncOverride func() time.Time) *DB {
s.nowFuncOverride = nowFuncOverride
return s
}
// Get a new timestamp, using the provided nowFuncOverride on the DB instance if set,
// otherwise defaults to the global NowFunc()
func (s *DB) nowFunc() time.Time {
if s.nowFuncOverride != nil {
return s.nowFuncOverride()
}
return NowFunc()
}
// BlockGlobalUpdate if true, generates an error on update/delete without where clause.
// This is to prevent eventual error with empty objects updates/deletions
func (s *DB) BlockGlobalUpdate(enable bool) *DB {
s.blockGlobalUpdate = enable
return s
}
// HasBlockGlobalUpdate return state of block
func (s *DB) HasBlockGlobalUpdate() bool {
return s.blockGlobalUpdate
}
// SingularTable use singular table by default
func (s *DB) SingularTable(enable bool) {
s.parent.Lock()
defer s.parent.Unlock()
s.parent.singularTable = enable
}
// NewScope create a scope for current operation
func (s *DB) NewScope(value interface{}) *Scope {
dbClone := s.clone()
dbClone.Value = value
scope := &Scope{db: dbClone, Value: value}
if s.search != nil {
scope.Search = s.search.clone()
} else {
scope.Search = &search{}
}
return scope
}
// QueryExpr returns the query as SqlExpr object
func (s *DB) QueryExpr() *SqlExpr {
scope := s.NewScope(s.Value)
scope.InstanceSet("skip_bindvar", true)
scope.prepareQuerySQL()
return Expr(scope.SQL, scope.SQLVars...)
}
// SubQuery returns the query as sub query
func (s *DB) SubQuery() *SqlExpr {
scope := s.NewScope(s.Value)
scope.InstanceSet("skip_bindvar", true)
scope.prepareQuerySQL()
return Expr(fmt.Sprintf("(%v)", scope.SQL), scope.SQLVars...)
}
// Where return a new relation, filter records with given conditions, accepts `map`, `struct` or `string` as conditions, refer http://jinzhu.github.io/gorm/crud.html#query
func (s *DB) Where(query interface{}, args ...interface{}) *DB {
return s.clone().search.Where(query, args...).db
}
// Or filter records that match before conditions or this one, similar to `Where`
func (s *DB) Or(query interface{}, args ...interface{}) *DB {
return s.clone().search.Or(query, args...).db
}
// Not filter records that don't match current conditions, similar to `Where`
func (s *DB) Not(query interface{}, args ...interface{}) *DB {
return s.clone().search.Not(query, args...).db
}
// Limit specify the number of records to be retrieved
func (s *DB) Limit(limit interface{}) *DB {
return s.clone().search.Limit(limit).db
}
// Offset specify the number of records to skip before starting to return the records
func (s *DB) Offset(offset interface{}) *DB {
return s.clone().search.Offset(offset).db
}
// Order specify order when retrieve records from database, set reorder to `true` to overwrite defined conditions
// db.Order("name DESC")
// db.Order("name DESC", true) // reorder
// db.Order(gorm.Expr("name = ? DESC", "first")) // sql expression
func (s *DB) Order(value interface{}, reorder ...bool) *DB {
return s.clone().search.Order(value, reorder...).db
}
// Select specify fields that you want to retrieve from database when querying, by default, will select all fields;
// When creating/updating, specify fields that you want to save to database
func (s *DB) Select(query interface{}, args ...interface{}) *DB {
return s.clone().search.Select(query, args...).db
}
// Omit specify fields that you want to ignore when saving to database for creating, updating
func (s *DB) Omit(columns ...string) *DB {
return s.clone().search.Omit(columns...).db
}
// Group specify the group method on the find
func (s *DB) Group(query string) *DB {
return s.clone().search.Group(query).db
}
// Having specify HAVING conditions for GROUP BY
func (s *DB) Having(query interface{}, values ...interface{}) *DB {
return s.clone().search.Having(query, values...).db
}
// Joins specify Joins conditions
// db.Joins("JOIN emails ON emails.user_id = users.id AND emails.email = ?", "jinzhu@example.org").Find(&user)
func (s *DB) Joins(query string, args ...interface{}) *DB {
return s.clone().search.Joins(query, args...).db
}
// Scopes pass current database connection to arguments `func(*DB) *DB`, which could be used to add conditions dynamically
// func AmountGreaterThan1000(db *gorm.DB) *gorm.DB {
// return db.Where("amount > ?", 1000)
// }
//
// func OrderStatus(status []string) func (db *gorm.DB) *gorm.DB {
// return func (db *gorm.DB) *gorm.DB {
// return db.Scopes(AmountGreaterThan1000).Where("status in (?)", status)
// }
// }
//
// db.Scopes(AmountGreaterThan1000, OrderStatus([]string{"paid", "shipped"})).Find(&orders)
// Refer https://jinzhu.github.io/gorm/crud.html#scopes
func (s *DB) Scopes(funcs ...func(*DB) *DB) *DB {
for _, f := range funcs {
s = f(s)
}
return s
}
// Unscoped return all record including deleted record, refer Soft Delete https://jinzhu.github.io/gorm/crud.html#soft-delete
func (s *DB) Unscoped() *DB {
return s.clone().search.unscoped().db
}
// Attrs initialize struct with argument if record not found with `FirstOrInit` https://jinzhu.github.io/gorm/crud.html#firstorinit or `FirstOrCreate` https://jinzhu.github.io/gorm/crud.html#firstorcreate
func (s *DB) Attrs(attrs ...interface{}) *DB {
return s.clone().search.Attrs(attrs...).db
}
// Assign assign result with argument regardless it is found or not with `FirstOrInit` https://jinzhu.github.io/gorm/crud.html#firstorinit or `FirstOrCreate` https://jinzhu.github.io/gorm/crud.html#firstorcreate
func (s *DB) Assign(attrs ...interface{}) *DB {
return s.clone().search.Assign(attrs...).db
}
// First find first record that match given conditions, order by primary key
func (s *DB) First(out interface{}, where ...interface{}) *DB {
newScope := s.NewScope(out)
newScope.Search.Limit(1)
return newScope.Set("gorm:order_by_primary_key", "ASC").
inlineCondition(where...).callCallbacks(s.parent.callbacks.queries).db
}
// Take return a record that match given conditions, the order will depend on the database implementation
func (s *DB) Take(out interface{}, where ...interface{}) *DB {
newScope := s.NewScope(out)
newScope.Search.Limit(1)
return newScope.inlineCondition(where...).callCallbacks(s.parent.callbacks.queries).db
}
// Last find last record that match given conditions, order by primary key
func (s *DB) Last(out interface{}, where ...interface{}) *DB {
newScope := s.NewScope(out)
newScope.Search.Limit(1)
return newScope.Set("gorm:order_by_primary_key", "DESC").
inlineCondition(where...).callCallbacks(s.parent.callbacks.queries).db
}
// Find find records that match given conditions
func (s *DB) Find(out interface{}, where ...interface{}) *DB {
return s.NewScope(out).inlineCondition(where...).callCallbacks(s.parent.callbacks.queries).db
}
//Preloads preloads relations, don`t touch out
func (s *DB) Preloads(out interface{}) *DB {
return s.NewScope(out).InstanceSet("gorm:only_preload", 1).callCallbacks(s.parent.callbacks.queries).db
}
// Scan scan value to a struct
func (s *DB) Scan(dest interface{}) *DB {
return s.NewScope(s.Value).Set("gorm:query_destination", dest).callCallbacks(s.parent.callbacks.queries).db
}
// Row return `*sql.Row` with given conditions
func (s *DB) Row() *sql.Row {
return s.NewScope(s.Value).row()
}
// Rows return `*sql.Rows` with given conditions
func (s *DB) Rows() (*sql.Rows, error) {
return s.NewScope(s.Value).rows()
}
// ScanRows scan `*sql.Rows` to give struct
func (s *DB) ScanRows(rows *sql.Rows, result interface{}) error {
var (
scope = s.NewScope(result)
clone = scope.db
columns, err = rows.Columns()
)
if clone.AddError(err) == nil {
scope.scan(rows, columns, scope.Fields())
}
return clone.Error
}
// Pluck used to query single column from a model as a map
// var ages []int64
// db.Find(&users).Pluck("age", &ages)
func (s *DB) Pluck(column string, value interface{}) *DB {
return s.NewScope(s.Value).pluck(column, value).db
}
// Count get how many records for a model
func (s *DB) Count(value interface{}) *DB {
return s.NewScope(s.Value).count(value).db
}
// Related get related associations
func (s *DB) Related(value interface{}, foreignKeys ...string) *DB {
return s.NewScope(s.Value).related(value, foreignKeys...).db
}
// FirstOrInit find first matched record or initialize a new one with given conditions (only works with struct, map conditions)
// https://jinzhu.github.io/gorm/crud.html#firstorinit
func (s *DB) FirstOrInit(out interface{}, where ...interface{}) *DB {
c := s.clone()
if result := c.First(out, where...); result.Error != nil {
if !result.RecordNotFound() {
return result
}
c.NewScope(out).inlineCondition(where...).initialize()
} else {
c.NewScope(out).updatedAttrsWithValues(c.search.assignAttrs)
}
return c
}
// FirstOrCreate find first matched record or create a new one with given conditions (only works with struct, map conditions)
// https://jinzhu.github.io/gorm/crud.html#firstorcreate
func (s *DB) FirstOrCreate(out interface{}, where ...interface{}) *DB {
c := s.clone()
if result := s.First(out, where...); result.Error != nil {
if !result.RecordNotFound() {
return result
}
return c.NewScope(out).inlineCondition(where...).initialize().callCallbacks(c.parent.callbacks.creates).db
} else if len(c.search.assignAttrs) > 0 {
return c.NewScope(out).InstanceSet("gorm:update_interface", c.search.assignAttrs).callCallbacks(c.parent.callbacks.updates).db
}
return c
}
// Update update attributes with callbacks, refer: https://jinzhu.github.io/gorm/crud.html#update
// WARNING when update with struct, GORM will not update fields that with zero value
func (s *DB) Update(attrs ...interface{}) *DB {
return s.Updates(toSearchableMap(attrs...), true)
}
// Updates update attributes with callbacks, refer: https://jinzhu.github.io/gorm/crud.html#update
func (s *DB) Updates(values interface{}, ignoreProtectedAttrs ...bool) *DB {
return s.NewScope(s.Value).
Set("gorm:ignore_protected_attrs", len(ignoreProtectedAttrs) > 0).
InstanceSet("gorm:update_interface", values).
callCallbacks(s.parent.callbacks.updates).db
}
// UpdateColumn update attributes without callbacks, refer: https://jinzhu.github.io/gorm/crud.html#update
func (s *DB) UpdateColumn(attrs ...interface{}) *DB {
return s.UpdateColumns(toSearchableMap(attrs...))
}
// UpdateColumns update attributes without callbacks, refer: https://jinzhu.github.io/gorm/crud.html#update
func (s *DB) UpdateColumns(values interface{}) *DB {
return s.NewScope(s.Value).
Set("gorm:update_column", true).
Set("gorm:save_associations", false).
InstanceSet("gorm:update_interface", values).
callCallbacks(s.parent.callbacks.updates).db
}
// Save update value in database, if the value doesn't have primary key, will insert it
func (s *DB) Save(value interface{}) *DB {
scope := s.NewScope(value)
if !scope.PrimaryKeyZero() {
newDB := scope.callCallbacks(s.parent.callbacks.updates).db
if newDB.Error == nil && newDB.RowsAffected == 0 {
return s.New().Table(scope.TableName()).FirstOrCreate(value)
}
return newDB
}
return scope.callCallbacks(s.parent.callbacks.creates).db
}
// Create insert the value into database
func (s *DB) Create(value interface{}) *DB {
scope := s.NewScope(value)
return scope.callCallbacks(s.parent.callbacks.creates).db
}
// Delete delete value match given conditions, if the value has primary key, then will including the primary key as condition
// WARNING If model has DeletedAt field, GORM will only set field DeletedAt's value to current time
func (s *DB) Delete(value interface{}, where ...interface{}) *DB {
return s.NewScope(value).inlineCondition(where...).callCallbacks(s.parent.callbacks.deletes).db
}
// Raw use raw sql as conditions, won't run it unless invoked by other methods
// db.Raw("SELECT name, age FROM users WHERE name = ?", 3).Scan(&result)
func (s *DB) Raw(sql string, values ...interface{}) *DB {
return s.clone().search.Raw(true).Where(sql, values...).db
}
// Exec execute raw sql
func (s *DB) Exec(sql string, values ...interface{}) *DB {
scope := s.NewScope(nil)
generatedSQL := scope.buildCondition(map[string]interface{}{"query": sql, "args": values}, true)
generatedSQL = strings.TrimSuffix(strings.TrimPrefix(generatedSQL, "("), ")")
scope.Raw(generatedSQL)
return scope.Exec().db
}
// Model specify the model you would like to run db operations
// // update all users's name to `hello`
// db.Model(&User{}).Update("name", "hello")
// // if user's primary key is non-blank, will use it as condition, then will only update the user's name to `hello`
// db.Model(&user).Update("name", "hello")
func (s *DB) Model(value interface{}) *DB {
c := s.clone()
c.Value = value
return c
}
// Table specify the table you would like to run db operations
func (s *DB) Table(name string) *DB {
clone := s.clone()
clone.search.Table(name)
clone.Value = nil
return clone
}
// Debug start debug mode
func (s *DB) Debug() *DB {
return s.clone().LogMode(true)
}
// Transaction start a transaction as a block,
// return error will rollback, otherwise to commit.
func (s *DB) Transaction(fc func(tx *DB) error) (err error) {
panicked := true
tx := s.Begin()
defer func() {
// Make sure to rollback when panic, Block error or Commit error
if panicked || err != nil {
tx.Rollback()
}
}()
err = fc(tx)
if err == nil {
err = tx.Commit().Error
}
panicked = false
return
}
// Begin begins a transaction
func (s *DB) Begin() *DB {
return s.BeginTx(context.Background(), &sql.TxOptions{})
}
// BeginTx begins a transaction with options
func (s *DB) BeginTx(ctx context.Context, opts *sql.TxOptions) *DB {
c := s.clone()
if db, ok := c.db.(sqlDb); ok && db != nil {
tx, err := db.BeginTx(ctx, opts)
c.db = interface{}(tx).(SQLCommon)
c.dialect.SetDB(c.db)
c.AddError(err)
} else {
c.AddError(ErrCantStartTransaction)
}
return c
}
// Commit commit a transaction
func (s *DB) Commit() *DB {
var emptySQLTx *sql.Tx
if db, ok := s.db.(sqlTx); ok && db != nil && db != emptySQLTx {
s.AddError(db.Commit())
} else {
s.AddError(ErrInvalidTransaction)
}
return s
}
// Rollback rollback a transaction
func (s *DB) Rollback() *DB {
var emptySQLTx *sql.Tx
if db, ok := s.db.(sqlTx); ok && db != nil && db != emptySQLTx {
if err := db.Rollback(); err != nil && err != sql.ErrTxDone {
s.AddError(err)
}
} else {
s.AddError(ErrInvalidTransaction)
}
return s
}
// RollbackUnlessCommitted rollback a transaction if it has not yet been
// committed.
func (s *DB) RollbackUnlessCommitted() *DB {
var emptySQLTx *sql.Tx
if db, ok := s.db.(sqlTx); ok && db != nil && db != emptySQLTx {
err := db.Rollback()
// Ignore the error indicating that the transaction has already
// been committed.
if err != sql.ErrTxDone {
s.AddError(err)
}
} else {
s.AddError(ErrInvalidTransaction)
}
return s
}
// NewRecord check if value's primary key is blank
func (s *DB) NewRecord(value interface{}) bool {
return s.NewScope(value).PrimaryKeyZero()
}
// RecordNotFound check if returning ErrRecordNotFound error
func (s *DB) RecordNotFound() bool {
for _, err := range s.GetErrors() {
if err == ErrRecordNotFound {
return true
}
}
return false
}
// CreateTable create table for models
func (s *DB) CreateTable(models ...interface{}) *DB {
db := s.Unscoped()
for _, model := range models {
db = db.NewScope(model).createTable().db
}
return db
}
// DropTable drop table for models
func (s *DB) DropTable(values ...interface{}) *DB {
db := s.clone()
for _, value := range values {
if tableName, ok := value.(string); ok {
db = db.Table(tableName)
}
db = db.NewScope(value).dropTable().db
}
return db
}
// DropTableIfExists drop table if it is exist
func (s *DB) DropTableIfExists(values ...interface{}) *DB {
db := s.clone()
for _, value := range values {
if s.HasTable(value) {
db.AddError(s.DropTable(value).Error)
}
}
return db
}
// HasTable check has table or not
func (s *DB) HasTable(value interface{}) bool {
var (
scope = s.NewScope(value)
tableName string
)
if name, ok := value.(string); ok {
tableName = name
} else {
tableName = scope.TableName()
}
has := scope.Dialect().HasTable(tableName)
s.AddError(scope.db.Error)
return has
}
// AutoMigrate run auto migration for given models, will only add missing fields, won't delete/change current data
func (s *DB) AutoMigrate(values ...interface{}) *DB {
db := s.Unscoped()
for _, value := range values {
db = db.NewScope(value).autoMigrate().db
}
return db
}
// ModifyColumn modify column to type
func (s *DB) ModifyColumn(column string, typ string) *DB {
scope := s.NewScope(s.Value)
scope.modifyColumn(column, typ)
return scope.db
}
// DropColumn drop a column
func (s *DB) DropColumn(column string) *DB {
scope := s.NewScope(s.Value)
scope.dropColumn(column)
return scope.db
}
// AddIndex add index for columns with given name
func (s *DB) AddIndex(indexName string, columns ...string) *DB {
scope := s.Unscoped().NewScope(s.Value)
scope.addIndex(false, indexName, columns...)
return scope.db
}
// AddUniqueIndex add unique index for columns with given name
func (s *DB) AddUniqueIndex(indexName string, columns ...string) *DB {
scope := s.Unscoped().NewScope(s.Value)
scope.addIndex(true, indexName, columns...)
return scope.db
}
// RemoveIndex remove index with name
func (s *DB) RemoveIndex(indexName string) *DB {
scope := s.NewScope(s.Value)
scope.removeIndex(indexName)
return scope.db
}
// AddForeignKey Add foreign key to the given scope, e.g:
// db.Model(&User{}).AddForeignKey("city_id", "cities(id)", "RESTRICT", "RESTRICT")
func (s *DB) AddForeignKey(field string, dest string, onDelete string, onUpdate string) *DB {
scope := s.NewScope(s.Value)
scope.addForeignKey(field, dest, onDelete, onUpdate)
return scope.db
}
// RemoveForeignKey Remove foreign key from the given scope, e.g:
// db.Model(&User{}).RemoveForeignKey("city_id", "cities(id)")
func (s *DB) RemoveForeignKey(field string, dest string) *DB {
scope := s.clone().NewScope(s.Value)
scope.removeForeignKey(field, dest)
return scope.db
}
// Association start `Association Mode` to handler relations things easir in that mode, refer: https://jinzhu.github.io/gorm/associations.html#association-mode
func (s *DB) Association(column string) *Association {
var err error
var scope = s.Set("gorm:association:source", s.Value).NewScope(s.Value)
if primaryField := scope.PrimaryField(); primaryField.IsBlank {
err = errors.New("primary key can't be nil")
} else {
if field, ok := scope.FieldByName(column); ok {
if field.Relationship == nil || len(field.Relationship.ForeignFieldNames) == 0 {
err = fmt.Errorf("invalid association %v for %v", column, scope.IndirectValue().Type())
} else {
return &Association{scope: scope, column: column, field: field}
}
} else {
err = fmt.Errorf("%v doesn't have column %v", scope.IndirectValue().Type(), column)
}
}
return &Association{Error: err}
}
// Preload preload associations with given conditions
// db.Preload("Orders", "state NOT IN (?)", "cancelled").Find(&users)
func (s *DB) Preload(column string, conditions ...interface{}) *DB {
return s.clone().search.Preload(column, conditions...).db
}
// Set set setting by name, which could be used in callbacks, will clone a new db, and update its setting
func (s *DB) Set(name string, value interface{}) *DB {
return s.clone().InstantSet(name, value)
}
// InstantSet instant set setting, will affect current db
func (s *DB) InstantSet(name string, value interface{}) *DB {
s.values.Store(name, value)
return s
}
// Get get setting by name
func (s *DB) Get(name string) (value interface{}, ok bool) {
value, ok = s.values.Load(name)
return
}
// SetJoinTableHandler set a model's join table handler for a relation
func (s *DB) SetJoinTableHandler(source interface{}, column string, handler JoinTableHandlerInterface) {
scope := s.NewScope(source)
for _, field := range scope.GetModelStruct().StructFields {
if field.Name == column || field.DBName == column {
if many2many, _ := field.TagSettingsGet("MANY2MANY"); many2many != "" {
source := (&Scope{Value: source}).GetModelStruct().ModelType
destination := (&Scope{Value: reflect.New(field.Struct.Type).Interface()}).GetModelStruct().ModelType
handler.Setup(field.Relationship, many2many, source, destination)
field.Relationship.JoinTableHandler = handler
if table := handler.Table(s); scope.Dialect().HasTable(table) {
s.Table(table).AutoMigrate(handler)
}
}
}
}
}
// AddError add error to the db
func (s *DB) AddError(err error) error {
if err != nil {
if err != ErrRecordNotFound {
if s.logMode == defaultLogMode {
go s.print("error", fileWithLineNum(), err)
} else {
s.log(err)
}
errors := Errors(s.GetErrors())
errors = errors.Add(err)
if len(errors) > 1 {
err = errors
}
}
s.Error = err
}
return err
}
// GetErrors get happened errors from the db
func (s *DB) GetErrors() []error {
if errs, ok := s.Error.(Errors); ok {
return errs
} else if s.Error != nil {
return []error{s.Error}
}
return []error{}
}
////////////////////////////////////////////////////////////////////////////////
// Private Methods For DB
////////////////////////////////////////////////////////////////////////////////
func (s *DB) clone() *DB {
db := &DB{
db: s.db,
parent: s.parent,
logger: s.logger,
logMode: s.logMode,
Value: s.Value,
Error: s.Error,
blockGlobalUpdate: s.blockGlobalUpdate,
dialect: newDialect(s.dialect.GetName(), s.db),
nowFuncOverride: s.nowFuncOverride,
}
s.values.Range(func(k, v interface{}) bool {
db.values.Store(k, v)
return true
})
if s.search == nil {
db.search = &search{limit: -1, offset: -1}
} else {
db.search = s.search.clone()
}
db.search.db = db
return db
}
func (s *DB) print(v ...interface{}) {
s.logger.Print(v...)
}
func (s *DB) log(v ...interface{}) {
if s != nil && s.logMode == detailedLogMode {
s.print(append([]interface{}{"log", fileWithLineNum()}, v...)...)
}
}
func (s *DB) slog(sql string, t time.Time, vars ...interface{}) {
if s.logMode == detailedLogMode {
s.print("sql", fileWithLineNum(), NowFunc().Sub(t), sql, vars, s.RowsAffected)
}
}

14
vendor/github.com/jinzhu/gorm/model.go generated vendored Normal file
View File

@ -0,0 +1,14 @@
package gorm
import "time"
// Model base model definition, including fields `ID`, `CreatedAt`, `UpdatedAt`, `DeletedAt`, which could be embedded in your models
// type User struct {
// gorm.Model
// }
type Model struct {
ID uint `gorm:"primary_key"`
CreatedAt time.Time
UpdatedAt time.Time
DeletedAt *time.Time `sql:"index"`
}

671
vendor/github.com/jinzhu/gorm/model_struct.go generated vendored Normal file
View File

@ -0,0 +1,671 @@
package gorm
import (
"database/sql"
"errors"
"go/ast"
"reflect"
"strings"
"sync"
"time"
"github.com/jinzhu/inflection"
)
// DefaultTableNameHandler default table name handler
var DefaultTableNameHandler = func(db *DB, defaultTableName string) string {
return defaultTableName
}
// lock for mutating global cached model metadata
var structsLock sync.Mutex
// global cache of model metadata
var modelStructsMap sync.Map
// ModelStruct model definition
type ModelStruct struct {
PrimaryFields []*StructField
StructFields []*StructField
ModelType reflect.Type
defaultTableName string
l sync.Mutex
}
// TableName returns model's table name
func (s *ModelStruct) TableName(db *DB) string {
s.l.Lock()
defer s.l.Unlock()
if s.defaultTableName == "" && db != nil && s.ModelType != nil {
// Set default table name
if tabler, ok := reflect.New(s.ModelType).Interface().(tabler); ok {
s.defaultTableName = tabler.TableName()
} else {
tableName := ToTableName(s.ModelType.Name())
db.parent.RLock()
if db == nil || (db.parent != nil && !db.parent.singularTable) {
tableName = inflection.Plural(tableName)
}
db.parent.RUnlock()
s.defaultTableName = tableName
}
}
return DefaultTableNameHandler(db, s.defaultTableName)
}
// StructField model field's struct definition
type StructField struct {
DBName string
Name string
Names []string
IsPrimaryKey bool
IsNormal bool
IsIgnored bool
IsScanner bool
HasDefaultValue bool
Tag reflect.StructTag
TagSettings map[string]string
Struct reflect.StructField
IsForeignKey bool
Relationship *Relationship
tagSettingsLock sync.RWMutex
}
// TagSettingsSet Sets a tag in the tag settings map
func (sf *StructField) TagSettingsSet(key, val string) {
sf.tagSettingsLock.Lock()
defer sf.tagSettingsLock.Unlock()
sf.TagSettings[key] = val
}
// TagSettingsGet returns a tag from the tag settings
func (sf *StructField) TagSettingsGet(key string) (string, bool) {
sf.tagSettingsLock.RLock()
defer sf.tagSettingsLock.RUnlock()
val, ok := sf.TagSettings[key]
return val, ok
}
// TagSettingsDelete deletes a tag
func (sf *StructField) TagSettingsDelete(key string) {
sf.tagSettingsLock.Lock()
defer sf.tagSettingsLock.Unlock()
delete(sf.TagSettings, key)
}
func (sf *StructField) clone() *StructField {
clone := &StructField{
DBName: sf.DBName,
Name: sf.Name,
Names: sf.Names,
IsPrimaryKey: sf.IsPrimaryKey,
IsNormal: sf.IsNormal,
IsIgnored: sf.IsIgnored,
IsScanner: sf.IsScanner,
HasDefaultValue: sf.HasDefaultValue,
Tag: sf.Tag,
TagSettings: map[string]string{},
Struct: sf.Struct,
IsForeignKey: sf.IsForeignKey,
}
if sf.Relationship != nil {
relationship := *sf.Relationship
clone.Relationship = &relationship
}
// copy the struct field tagSettings, they should be read-locked while they are copied
sf.tagSettingsLock.Lock()
defer sf.tagSettingsLock.Unlock()
for key, value := range sf.TagSettings {
clone.TagSettings[key] = value
}
return clone
}
// Relationship described the relationship between models
type Relationship struct {
Kind string
PolymorphicType string
PolymorphicDBName string
PolymorphicValue string
ForeignFieldNames []string
ForeignDBNames []string
AssociationForeignFieldNames []string
AssociationForeignDBNames []string
JoinTableHandler JoinTableHandlerInterface
}
func getForeignField(column string, fields []*StructField) *StructField {
for _, field := range fields {
if field.Name == column || field.DBName == column || field.DBName == ToColumnName(column) {
return field
}
}
return nil
}
// GetModelStruct get value's model struct, relationships based on struct and tag definition
func (scope *Scope) GetModelStruct() *ModelStruct {
var modelStruct ModelStruct
// Scope value can't be nil
if scope.Value == nil {
return &modelStruct
}
reflectType := reflect.ValueOf(scope.Value).Type()
for reflectType.Kind() == reflect.Slice || reflectType.Kind() == reflect.Ptr {
reflectType = reflectType.Elem()
}
// Scope value need to be a struct
if reflectType.Kind() != reflect.Struct {
return &modelStruct
}
// Get Cached model struct
isSingularTable := false
if scope.db != nil && scope.db.parent != nil {
scope.db.parent.RLock()
isSingularTable = scope.db.parent.singularTable
scope.db.parent.RUnlock()
}
hashKey := struct {
singularTable bool
reflectType reflect.Type
}{isSingularTable, reflectType}
if value, ok := modelStructsMap.Load(hashKey); ok && value != nil {
return value.(*ModelStruct)
}
modelStruct.ModelType = reflectType
// Get all fields
for i := 0; i < reflectType.NumField(); i++ {
if fieldStruct := reflectType.Field(i); ast.IsExported(fieldStruct.Name) {
field := &StructField{
Struct: fieldStruct,
Name: fieldStruct.Name,
Names: []string{fieldStruct.Name},
Tag: fieldStruct.Tag,
TagSettings: parseTagSetting(fieldStruct.Tag),
}
// is ignored field
if _, ok := field.TagSettingsGet("-"); ok {
field.IsIgnored = true
} else {
if _, ok := field.TagSettingsGet("PRIMARY_KEY"); ok {
field.IsPrimaryKey = true
modelStruct.PrimaryFields = append(modelStruct.PrimaryFields, field)
}
if _, ok := field.TagSettingsGet("DEFAULT"); ok && !field.IsPrimaryKey {
field.HasDefaultValue = true
}
if _, ok := field.TagSettingsGet("AUTO_INCREMENT"); ok && !field.IsPrimaryKey {
field.HasDefaultValue = true
}
indirectType := fieldStruct.Type
for indirectType.Kind() == reflect.Ptr {
indirectType = indirectType.Elem()
}
fieldValue := reflect.New(indirectType).Interface()
if _, isScanner := fieldValue.(sql.Scanner); isScanner {
// is scanner
field.IsScanner, field.IsNormal = true, true
if indirectType.Kind() == reflect.Struct {
for i := 0; i < indirectType.NumField(); i++ {
for key, value := range parseTagSetting(indirectType.Field(i).Tag) {
if _, ok := field.TagSettingsGet(key); !ok {
field.TagSettingsSet(key, value)
}
}
}
}
} else if _, isTime := fieldValue.(*time.Time); isTime {
// is time
field.IsNormal = true
} else if _, ok := field.TagSettingsGet("EMBEDDED"); ok || fieldStruct.Anonymous {
// is embedded struct
for _, subField := range scope.New(fieldValue).GetModelStruct().StructFields {
subField = subField.clone()
subField.Names = append([]string{fieldStruct.Name}, subField.Names...)
if prefix, ok := field.TagSettingsGet("EMBEDDED_PREFIX"); ok {
subField.DBName = prefix + subField.DBName
}
if subField.IsPrimaryKey {
if _, ok := subField.TagSettingsGet("PRIMARY_KEY"); ok {
modelStruct.PrimaryFields = append(modelStruct.PrimaryFields, subField)
} else {
subField.IsPrimaryKey = false
}
}
if subField.Relationship != nil && subField.Relationship.JoinTableHandler != nil {
if joinTableHandler, ok := subField.Relationship.JoinTableHandler.(*JoinTableHandler); ok {
newJoinTableHandler := &JoinTableHandler{}
newJoinTableHandler.Setup(subField.Relationship, joinTableHandler.TableName, reflectType, joinTableHandler.Destination.ModelType)
subField.Relationship.JoinTableHandler = newJoinTableHandler
}
}
modelStruct.StructFields = append(modelStruct.StructFields, subField)
}
continue
} else {
// build relationships
switch indirectType.Kind() {
case reflect.Slice:
defer func(field *StructField) {
var (
relationship = &Relationship{}
toScope = scope.New(reflect.New(field.Struct.Type).Interface())
foreignKeys []string
associationForeignKeys []string
elemType = field.Struct.Type
)
if foreignKey, _ := field.TagSettingsGet("FOREIGNKEY"); foreignKey != "" {
foreignKeys = strings.Split(foreignKey, ",")
}
if foreignKey, _ := field.TagSettingsGet("ASSOCIATION_FOREIGNKEY"); foreignKey != "" {
associationForeignKeys = strings.Split(foreignKey, ",")
} else if foreignKey, _ := field.TagSettingsGet("ASSOCIATIONFOREIGNKEY"); foreignKey != "" {
associationForeignKeys = strings.Split(foreignKey, ",")
}
for elemType.Kind() == reflect.Slice || elemType.Kind() == reflect.Ptr {
elemType = elemType.Elem()
}
if elemType.Kind() == reflect.Struct {
if many2many, _ := field.TagSettingsGet("MANY2MANY"); many2many != "" {
relationship.Kind = "many_to_many"
{ // Foreign Keys for Source
joinTableDBNames := []string{}
if foreignKey, _ := field.TagSettingsGet("JOINTABLE_FOREIGNKEY"); foreignKey != "" {
joinTableDBNames = strings.Split(foreignKey, ",")
}
// if no foreign keys defined with tag
if len(foreignKeys) == 0 {
for _, field := range modelStruct.PrimaryFields {
foreignKeys = append(foreignKeys, field.DBName)
}
}
for idx, foreignKey := range foreignKeys {
if foreignField := getForeignField(foreignKey, modelStruct.StructFields); foreignField != nil {
// source foreign keys (db names)
relationship.ForeignFieldNames = append(relationship.ForeignFieldNames, foreignField.DBName)
// setup join table foreign keys for source
if len(joinTableDBNames) > idx {
// if defined join table's foreign key
relationship.ForeignDBNames = append(relationship.ForeignDBNames, joinTableDBNames[idx])
} else {
defaultJointableForeignKey := ToColumnName(reflectType.Name()) + "_" + foreignField.DBName
relationship.ForeignDBNames = append(relationship.ForeignDBNames, defaultJointableForeignKey)
}
}
}
}
{ // Foreign Keys for Association (Destination)
associationJoinTableDBNames := []string{}
if foreignKey, _ := field.TagSettingsGet("ASSOCIATION_JOINTABLE_FOREIGNKEY"); foreignKey != "" {
associationJoinTableDBNames = strings.Split(foreignKey, ",")
}
// if no association foreign keys defined with tag
if len(associationForeignKeys) == 0 {
for _, field := range toScope.PrimaryFields() {
associationForeignKeys = append(associationForeignKeys, field.DBName)
}
}
for idx, name := range associationForeignKeys {
if field, ok := toScope.FieldByName(name); ok {
// association foreign keys (db names)
relationship.AssociationForeignFieldNames = append(relationship.AssociationForeignFieldNames, field.DBName)
// setup join table foreign keys for association
if len(associationJoinTableDBNames) > idx {
relationship.AssociationForeignDBNames = append(relationship.AssociationForeignDBNames, associationJoinTableDBNames[idx])
} else {
// join table foreign keys for association
joinTableDBName := ToColumnName(elemType.Name()) + "_" + field.DBName
relationship.AssociationForeignDBNames = append(relationship.AssociationForeignDBNames, joinTableDBName)
}
}
}
}
joinTableHandler := JoinTableHandler{}
joinTableHandler.Setup(relationship, many2many, reflectType, elemType)
relationship.JoinTableHandler = &joinTableHandler
field.Relationship = relationship
} else {
// User has many comments, associationType is User, comment use UserID as foreign key
var associationType = reflectType.Name()
var toFields = toScope.GetStructFields()
relationship.Kind = "has_many"
if polymorphic, _ := field.TagSettingsGet("POLYMORPHIC"); polymorphic != "" {
// Dog has many toys, tag polymorphic is Owner, then associationType is Owner
// Toy use OwnerID, OwnerType ('dogs') as foreign key
if polymorphicType := getForeignField(polymorphic+"Type", toFields); polymorphicType != nil {
associationType = polymorphic
relationship.PolymorphicType = polymorphicType.Name
relationship.PolymorphicDBName = polymorphicType.DBName
// if Dog has multiple set of toys set name of the set (instead of default 'dogs')
if value, ok := field.TagSettingsGet("POLYMORPHIC_VALUE"); ok {
relationship.PolymorphicValue = value
} else {
relationship.PolymorphicValue = scope.TableName()
}
polymorphicType.IsForeignKey = true
}
}
// if no foreign keys defined with tag
if len(foreignKeys) == 0 {
// if no association foreign keys defined with tag
if len(associationForeignKeys) == 0 {
for _, field := range modelStruct.PrimaryFields {
foreignKeys = append(foreignKeys, associationType+field.Name)
associationForeignKeys = append(associationForeignKeys, field.Name)
}
} else {
// generate foreign keys from defined association foreign keys
for _, scopeFieldName := range associationForeignKeys {
if foreignField := getForeignField(scopeFieldName, modelStruct.StructFields); foreignField != nil {
foreignKeys = append(foreignKeys, associationType+foreignField.Name)
associationForeignKeys = append(associationForeignKeys, foreignField.Name)
}
}
}
} else {
// generate association foreign keys from foreign keys
if len(associationForeignKeys) == 0 {
for _, foreignKey := range foreignKeys {
if strings.HasPrefix(foreignKey, associationType) {
associationForeignKey := strings.TrimPrefix(foreignKey, associationType)
if foreignField := getForeignField(associationForeignKey, modelStruct.StructFields); foreignField != nil {
associationForeignKeys = append(associationForeignKeys, associationForeignKey)
}
}
}
if len(associationForeignKeys) == 0 && len(foreignKeys) == 1 {
associationForeignKeys = []string{scope.PrimaryKey()}
}
} else if len(foreignKeys) != len(associationForeignKeys) {
scope.Err(errors.New("invalid foreign keys, should have same length"))
return
}
}
for idx, foreignKey := range foreignKeys {
if foreignField := getForeignField(foreignKey, toFields); foreignField != nil {
if associationField := getForeignField(associationForeignKeys[idx], modelStruct.StructFields); associationField != nil {
// mark field as foreignkey, use global lock to avoid race
structsLock.Lock()
foreignField.IsForeignKey = true
structsLock.Unlock()
// association foreign keys
relationship.AssociationForeignFieldNames = append(relationship.AssociationForeignFieldNames, associationField.Name)
relationship.AssociationForeignDBNames = append(relationship.AssociationForeignDBNames, associationField.DBName)
// association foreign keys
relationship.ForeignFieldNames = append(relationship.ForeignFieldNames, foreignField.Name)
relationship.ForeignDBNames = append(relationship.ForeignDBNames, foreignField.DBName)
}
}
}
if len(relationship.ForeignFieldNames) != 0 {
field.Relationship = relationship
}
}
} else {
field.IsNormal = true
}
}(field)
case reflect.Struct:
defer func(field *StructField) {
var (
// user has one profile, associationType is User, profile use UserID as foreign key
// user belongs to profile, associationType is Profile, user use ProfileID as foreign key
associationType = reflectType.Name()
relationship = &Relationship{}
toScope = scope.New(reflect.New(field.Struct.Type).Interface())
toFields = toScope.GetStructFields()
tagForeignKeys []string
tagAssociationForeignKeys []string
)
if foreignKey, _ := field.TagSettingsGet("FOREIGNKEY"); foreignKey != "" {
tagForeignKeys = strings.Split(foreignKey, ",")
}
if foreignKey, _ := field.TagSettingsGet("ASSOCIATION_FOREIGNKEY"); foreignKey != "" {
tagAssociationForeignKeys = strings.Split(foreignKey, ",")
} else if foreignKey, _ := field.TagSettingsGet("ASSOCIATIONFOREIGNKEY"); foreignKey != "" {
tagAssociationForeignKeys = strings.Split(foreignKey, ",")
}
if polymorphic, _ := field.TagSettingsGet("POLYMORPHIC"); polymorphic != "" {
// Cat has one toy, tag polymorphic is Owner, then associationType is Owner
// Toy use OwnerID, OwnerType ('cats') as foreign key
if polymorphicType := getForeignField(polymorphic+"Type", toFields); polymorphicType != nil {
associationType = polymorphic
relationship.PolymorphicType = polymorphicType.Name
relationship.PolymorphicDBName = polymorphicType.DBName
// if Cat has several different types of toys set name for each (instead of default 'cats')
if value, ok := field.TagSettingsGet("POLYMORPHIC_VALUE"); ok {
relationship.PolymorphicValue = value
} else {
relationship.PolymorphicValue = scope.TableName()
}
polymorphicType.IsForeignKey = true
}
}
// Has One
{
var foreignKeys = tagForeignKeys
var associationForeignKeys = tagAssociationForeignKeys
// if no foreign keys defined with tag
if len(foreignKeys) == 0 {
// if no association foreign keys defined with tag
if len(associationForeignKeys) == 0 {
for _, primaryField := range modelStruct.PrimaryFields {
foreignKeys = append(foreignKeys, associationType+primaryField.Name)
associationForeignKeys = append(associationForeignKeys, primaryField.Name)
}
} else {
// generate foreign keys form association foreign keys
for _, associationForeignKey := range tagAssociationForeignKeys {
if foreignField := getForeignField(associationForeignKey, modelStruct.StructFields); foreignField != nil {
foreignKeys = append(foreignKeys, associationType+foreignField.Name)
associationForeignKeys = append(associationForeignKeys, foreignField.Name)
}
}
}
} else {
// generate association foreign keys from foreign keys
if len(associationForeignKeys) == 0 {
for _, foreignKey := range foreignKeys {
if strings.HasPrefix(foreignKey, associationType) {
associationForeignKey := strings.TrimPrefix(foreignKey, associationType)
if foreignField := getForeignField(associationForeignKey, modelStruct.StructFields); foreignField != nil {
associationForeignKeys = append(associationForeignKeys, associationForeignKey)
}
}
}
if len(associationForeignKeys) == 0 && len(foreignKeys) == 1 {
associationForeignKeys = []string{scope.PrimaryKey()}
}
} else if len(foreignKeys) != len(associationForeignKeys) {
scope.Err(errors.New("invalid foreign keys, should have same length"))
return
}
}
for idx, foreignKey := range foreignKeys {
if foreignField := getForeignField(foreignKey, toFields); foreignField != nil {
if scopeField := getForeignField(associationForeignKeys[idx], modelStruct.StructFields); scopeField != nil {
// mark field as foreignkey, use global lock to avoid race
structsLock.Lock()
foreignField.IsForeignKey = true
structsLock.Unlock()
// association foreign keys
relationship.AssociationForeignFieldNames = append(relationship.AssociationForeignFieldNames, scopeField.Name)
relationship.AssociationForeignDBNames = append(relationship.AssociationForeignDBNames, scopeField.DBName)
// association foreign keys
relationship.ForeignFieldNames = append(relationship.ForeignFieldNames, foreignField.Name)
relationship.ForeignDBNames = append(relationship.ForeignDBNames, foreignField.DBName)
}
}
}
}
if len(relationship.ForeignFieldNames) != 0 {
relationship.Kind = "has_one"
field.Relationship = relationship
} else {
var foreignKeys = tagForeignKeys
var associationForeignKeys = tagAssociationForeignKeys
if len(foreignKeys) == 0 {
// generate foreign keys & association foreign keys
if len(associationForeignKeys) == 0 {
for _, primaryField := range toScope.PrimaryFields() {
foreignKeys = append(foreignKeys, field.Name+primaryField.Name)
associationForeignKeys = append(associationForeignKeys, primaryField.Name)
}
} else {
// generate foreign keys with association foreign keys
for _, associationForeignKey := range associationForeignKeys {
if foreignField := getForeignField(associationForeignKey, toFields); foreignField != nil {
foreignKeys = append(foreignKeys, field.Name+foreignField.Name)
associationForeignKeys = append(associationForeignKeys, foreignField.Name)
}
}
}
} else {
// generate foreign keys & association foreign keys
if len(associationForeignKeys) == 0 {
for _, foreignKey := range foreignKeys {
if strings.HasPrefix(foreignKey, field.Name) {
associationForeignKey := strings.TrimPrefix(foreignKey, field.Name)
if foreignField := getForeignField(associationForeignKey, toFields); foreignField != nil {
associationForeignKeys = append(associationForeignKeys, associationForeignKey)
}
}
}
if len(associationForeignKeys) == 0 && len(foreignKeys) == 1 {
associationForeignKeys = []string{toScope.PrimaryKey()}
}
} else if len(foreignKeys) != len(associationForeignKeys) {
scope.Err(errors.New("invalid foreign keys, should have same length"))
return
}
}
for idx, foreignKey := range foreignKeys {
if foreignField := getForeignField(foreignKey, modelStruct.StructFields); foreignField != nil {
if associationField := getForeignField(associationForeignKeys[idx], toFields); associationField != nil {
// mark field as foreignkey, use global lock to avoid race
structsLock.Lock()
foreignField.IsForeignKey = true
structsLock.Unlock()
// association foreign keys
relationship.AssociationForeignFieldNames = append(relationship.AssociationForeignFieldNames, associationField.Name)
relationship.AssociationForeignDBNames = append(relationship.AssociationForeignDBNames, associationField.DBName)
// source foreign keys
relationship.ForeignFieldNames = append(relationship.ForeignFieldNames, foreignField.Name)
relationship.ForeignDBNames = append(relationship.ForeignDBNames, foreignField.DBName)
}
}
}
if len(relationship.ForeignFieldNames) != 0 {
relationship.Kind = "belongs_to"
field.Relationship = relationship
}
}
}(field)
default:
field.IsNormal = true
}
}
}
// Even it is ignored, also possible to decode db value into the field
if value, ok := field.TagSettingsGet("COLUMN"); ok {
field.DBName = value
} else {
field.DBName = ToColumnName(fieldStruct.Name)
}
modelStruct.StructFields = append(modelStruct.StructFields, field)
}
}
if len(modelStruct.PrimaryFields) == 0 {
if field := getForeignField("id", modelStruct.StructFields); field != nil {
field.IsPrimaryKey = true
modelStruct.PrimaryFields = append(modelStruct.PrimaryFields, field)
}
}
modelStructsMap.Store(hashKey, &modelStruct)
return &modelStruct
}
// GetStructFields get model's field structs
func (scope *Scope) GetStructFields() (fields []*StructField) {
return scope.GetModelStruct().StructFields
}
func parseTagSetting(tags reflect.StructTag) map[string]string {
setting := map[string]string{}
for _, str := range []string{tags.Get("sql"), tags.Get("gorm")} {
if str == "" {
continue
}
tags := strings.Split(str, ";")
for _, value := range tags {
v := strings.Split(value, ":")
k := strings.TrimSpace(strings.ToUpper(v[0]))
if len(v) >= 2 {
setting[k] = strings.Join(v[1:], ":")
} else {
setting[k] = k
}
}
}
return setting
}

124
vendor/github.com/jinzhu/gorm/naming.go generated vendored Normal file
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@ -0,0 +1,124 @@
package gorm
import (
"bytes"
"strings"
)
// Namer is a function type which is given a string and return a string
type Namer func(string) string
// NamingStrategy represents naming strategies
type NamingStrategy struct {
DB Namer
Table Namer
Column Namer
}
// TheNamingStrategy is being initialized with defaultNamingStrategy
var TheNamingStrategy = &NamingStrategy{
DB: defaultNamer,
Table: defaultNamer,
Column: defaultNamer,
}
// AddNamingStrategy sets the naming strategy
func AddNamingStrategy(ns *NamingStrategy) {
if ns.DB == nil {
ns.DB = defaultNamer
}
if ns.Table == nil {
ns.Table = defaultNamer
}
if ns.Column == nil {
ns.Column = defaultNamer
}
TheNamingStrategy = ns
}
// DBName alters the given name by DB
func (ns *NamingStrategy) DBName(name string) string {
return ns.DB(name)
}
// TableName alters the given name by Table
func (ns *NamingStrategy) TableName(name string) string {
return ns.Table(name)
}
// ColumnName alters the given name by Column
func (ns *NamingStrategy) ColumnName(name string) string {
return ns.Column(name)
}
// ToDBName convert string to db name
func ToDBName(name string) string {
return TheNamingStrategy.DBName(name)
}
// ToTableName convert string to table name
func ToTableName(name string) string {
return TheNamingStrategy.TableName(name)
}
// ToColumnName convert string to db name
func ToColumnName(name string) string {
return TheNamingStrategy.ColumnName(name)
}
var smap = newSafeMap()
func defaultNamer(name string) string {
const (
lower = false
upper = true
)
if v := smap.Get(name); v != "" {
return v
}
if name == "" {
return ""
}
var (
value = commonInitialismsReplacer.Replace(name)
buf = bytes.NewBufferString("")
lastCase, currCase, nextCase, nextNumber bool
)
for i, v := range value[:len(value)-1] {
nextCase = bool(value[i+1] >= 'A' && value[i+1] <= 'Z')
nextNumber = bool(value[i+1] >= '0' && value[i+1] <= '9')
if i > 0 {
if currCase == upper {
if lastCase == upper && (nextCase == upper || nextNumber == upper) {
buf.WriteRune(v)
} else {
if value[i-1] != '_' && value[i+1] != '_' {
buf.WriteRune('_')
}
buf.WriteRune(v)
}
} else {
buf.WriteRune(v)
if i == len(value)-2 && (nextCase == upper && nextNumber == lower) {
buf.WriteRune('_')
}
}
} else {
currCase = upper
buf.WriteRune(v)
}
lastCase = currCase
currCase = nextCase
}
buf.WriteByte(value[len(value)-1])
s := strings.ToLower(buf.String())
smap.Set(name, s)
return s
}

1421
vendor/github.com/jinzhu/gorm/scope.go generated vendored Normal file
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File diff suppressed because it is too large Load Diff

153
vendor/github.com/jinzhu/gorm/search.go generated vendored Normal file
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@ -0,0 +1,153 @@
package gorm
import (
"fmt"
)
type search struct {
db *DB
whereConditions []map[string]interface{}
orConditions []map[string]interface{}
notConditions []map[string]interface{}
havingConditions []map[string]interface{}
joinConditions []map[string]interface{}
initAttrs []interface{}
assignAttrs []interface{}
selects map[string]interface{}
omits []string
orders []interface{}
preload []searchPreload
offset interface{}
limit interface{}
group string
tableName string
raw bool
Unscoped bool
ignoreOrderQuery bool
}
type searchPreload struct {
schema string
conditions []interface{}
}
func (s *search) clone() *search {
clone := *s
return &clone
}
func (s *search) Where(query interface{}, values ...interface{}) *search {
s.whereConditions = append(s.whereConditions, map[string]interface{}{"query": query, "args": values})
return s
}
func (s *search) Not(query interface{}, values ...interface{}) *search {
s.notConditions = append(s.notConditions, map[string]interface{}{"query": query, "args": values})
return s
}
func (s *search) Or(query interface{}, values ...interface{}) *search {
s.orConditions = append(s.orConditions, map[string]interface{}{"query": query, "args": values})
return s
}
func (s *search) Attrs(attrs ...interface{}) *search {
s.initAttrs = append(s.initAttrs, toSearchableMap(attrs...))
return s
}
func (s *search) Assign(attrs ...interface{}) *search {
s.assignAttrs = append(s.assignAttrs, toSearchableMap(attrs...))
return s
}
func (s *search) Order(value interface{}, reorder ...bool) *search {
if len(reorder) > 0 && reorder[0] {
s.orders = []interface{}{}
}
if value != nil && value != "" {
s.orders = append(s.orders, value)
}
return s
}
func (s *search) Select(query interface{}, args ...interface{}) *search {
s.selects = map[string]interface{}{"query": query, "args": args}
return s
}
func (s *search) Omit(columns ...string) *search {
s.omits = columns
return s
}
func (s *search) Limit(limit interface{}) *search {
s.limit = limit
return s
}
func (s *search) Offset(offset interface{}) *search {
s.offset = offset
return s
}
func (s *search) Group(query string) *search {
s.group = s.getInterfaceAsSQL(query)
return s
}
func (s *search) Having(query interface{}, values ...interface{}) *search {
if val, ok := query.(*SqlExpr); ok {
s.havingConditions = append(s.havingConditions, map[string]interface{}{"query": val.expr, "args": val.args})
} else {
s.havingConditions = append(s.havingConditions, map[string]interface{}{"query": query, "args": values})
}
return s
}
func (s *search) Joins(query string, values ...interface{}) *search {
s.joinConditions = append(s.joinConditions, map[string]interface{}{"query": query, "args": values})
return s
}
func (s *search) Preload(schema string, values ...interface{}) *search {
var preloads []searchPreload
for _, preload := range s.preload {
if preload.schema != schema {
preloads = append(preloads, preload)
}
}
preloads = append(preloads, searchPreload{schema, values})
s.preload = preloads
return s
}
func (s *search) Raw(b bool) *search {
s.raw = b
return s
}
func (s *search) unscoped() *search {
s.Unscoped = true
return s
}
func (s *search) Table(name string) *search {
s.tableName = name
return s
}
func (s *search) getInterfaceAsSQL(value interface{}) (str string) {
switch value.(type) {
case string, int, int8, int16, int32, int64, uint, uint8, uint16, uint32, uint64:
str = fmt.Sprintf("%v", value)
default:
s.db.AddError(ErrInvalidSQL)
}
if str == "-1" {
return ""
}
return
}

5
vendor/github.com/jinzhu/gorm/test_all.sh generated vendored Normal file
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@ -0,0 +1,5 @@
dialects=("postgres" "mysql" "mssql" "sqlite")
for dialect in "${dialects[@]}" ; do
DEBUG=false GORM_DIALECT=${dialect} go test
done

226
vendor/github.com/jinzhu/gorm/utils.go generated vendored Normal file
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@ -0,0 +1,226 @@
package gorm
import (
"database/sql/driver"
"fmt"
"reflect"
"regexp"
"runtime"
"strings"
"sync"
"time"
)
// NowFunc returns current time, this function is exported in order to be able
// to give the flexibility to the developer to customize it according to their
// needs, e.g:
// gorm.NowFunc = func() time.Time {
// return time.Now().UTC()
// }
var NowFunc = func() time.Time {
return time.Now()
}
// Copied from golint
var commonInitialisms = []string{"API", "ASCII", "CPU", "CSS", "DNS", "EOF", "GUID", "HTML", "HTTP", "HTTPS", "ID", "IP", "JSON", "LHS", "QPS", "RAM", "RHS", "RPC", "SLA", "SMTP", "SSH", "TLS", "TTL", "UID", "UI", "UUID", "URI", "URL", "UTF8", "VM", "XML", "XSRF", "XSS"}
var commonInitialismsReplacer *strings.Replacer
var goSrcRegexp = regexp.MustCompile(`jinzhu/gorm(@.*)?/.*.go`)
var goTestRegexp = regexp.MustCompile(`jinzhu/gorm(@.*)?/.*test.go`)
func init() {
var commonInitialismsForReplacer []string
for _, initialism := range commonInitialisms {
commonInitialismsForReplacer = append(commonInitialismsForReplacer, initialism, strings.Title(strings.ToLower(initialism)))
}
commonInitialismsReplacer = strings.NewReplacer(commonInitialismsForReplacer...)
}
type safeMap struct {
m map[string]string
l *sync.RWMutex
}
func (s *safeMap) Set(key string, value string) {
s.l.Lock()
defer s.l.Unlock()
s.m[key] = value
}
func (s *safeMap) Get(key string) string {
s.l.RLock()
defer s.l.RUnlock()
return s.m[key]
}
func newSafeMap() *safeMap {
return &safeMap{l: new(sync.RWMutex), m: make(map[string]string)}
}
// SQL expression
type SqlExpr struct {
expr string
args []interface{}
}
// Expr generate raw SQL expression, for example:
// DB.Model(&product).Update("price", gorm.Expr("price * ? + ?", 2, 100))
func Expr(expression string, args ...interface{}) *SqlExpr {
return &SqlExpr{expr: expression, args: args}
}
func indirect(reflectValue reflect.Value) reflect.Value {
for reflectValue.Kind() == reflect.Ptr {
reflectValue = reflectValue.Elem()
}
return reflectValue
}
func toQueryMarks(primaryValues [][]interface{}) string {
var results []string
for _, primaryValue := range primaryValues {
var marks []string
for range primaryValue {
marks = append(marks, "?")
}
if len(marks) > 1 {
results = append(results, fmt.Sprintf("(%v)", strings.Join(marks, ",")))
} else {
results = append(results, strings.Join(marks, ""))
}
}
return strings.Join(results, ",")
}
func toQueryCondition(scope *Scope, columns []string) string {
var newColumns []string
for _, column := range columns {
newColumns = append(newColumns, scope.Quote(column))
}
if len(columns) > 1 {
return fmt.Sprintf("(%v)", strings.Join(newColumns, ","))
}
return strings.Join(newColumns, ",")
}
func toQueryValues(values [][]interface{}) (results []interface{}) {
for _, value := range values {
for _, v := range value {
results = append(results, v)
}
}
return
}
func fileWithLineNum() string {
for i := 2; i < 15; i++ {
_, file, line, ok := runtime.Caller(i)
if ok && (!goSrcRegexp.MatchString(file) || goTestRegexp.MatchString(file)) {
return fmt.Sprintf("%v:%v", file, line)
}
}
return ""
}
func isBlank(value reflect.Value) bool {
switch value.Kind() {
case reflect.String:
return value.Len() == 0
case reflect.Bool:
return !value.Bool()
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return value.Int() == 0
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
return value.Uint() == 0
case reflect.Float32, reflect.Float64:
return value.Float() == 0
case reflect.Interface, reflect.Ptr:
return value.IsNil()
}
return reflect.DeepEqual(value.Interface(), reflect.Zero(value.Type()).Interface())
}
func toSearchableMap(attrs ...interface{}) (result interface{}) {
if len(attrs) > 1 {
if str, ok := attrs[0].(string); ok {
result = map[string]interface{}{str: attrs[1]}
}
} else if len(attrs) == 1 {
if attr, ok := attrs[0].(map[string]interface{}); ok {
result = attr
}
if attr, ok := attrs[0].(interface{}); ok {
result = attr
}
}
return
}
func equalAsString(a interface{}, b interface{}) bool {
return toString(a) == toString(b)
}
func toString(str interface{}) string {
if values, ok := str.([]interface{}); ok {
var results []string
for _, value := range values {
results = append(results, toString(value))
}
return strings.Join(results, "_")
} else if bytes, ok := str.([]byte); ok {
return string(bytes)
} else if reflectValue := reflect.Indirect(reflect.ValueOf(str)); reflectValue.IsValid() {
return fmt.Sprintf("%v", reflectValue.Interface())
}
return ""
}
func makeSlice(elemType reflect.Type) interface{} {
if elemType.Kind() == reflect.Slice {
elemType = elemType.Elem()
}
sliceType := reflect.SliceOf(elemType)
slice := reflect.New(sliceType)
slice.Elem().Set(reflect.MakeSlice(sliceType, 0, 0))
return slice.Interface()
}
func strInSlice(a string, list []string) bool {
for _, b := range list {
if b == a {
return true
}
}
return false
}
// getValueFromFields return given fields's value
func getValueFromFields(value reflect.Value, fieldNames []string) (results []interface{}) {
// If value is a nil pointer, Indirect returns a zero Value!
// Therefor we need to check for a zero value,
// as FieldByName could panic
if indirectValue := reflect.Indirect(value); indirectValue.IsValid() {
for _, fieldName := range fieldNames {
if fieldValue := reflect.Indirect(indirectValue.FieldByName(fieldName)); fieldValue.IsValid() {
result := fieldValue.Interface()
if r, ok := result.(driver.Valuer); ok {
result, _ = r.Value()
}
results = append(results, result)
}
}
}
return
}
func addExtraSpaceIfExist(str string) string {
if str != "" {
return " " + str
}
return ""
}

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# use the default golang container from Docker Hub
box: golang
services:
- name: mariadb
id: mariadb:latest
env:
MYSQL_DATABASE: gorm
MYSQL_USER: gorm
MYSQL_PASSWORD: gorm
MYSQL_RANDOM_ROOT_PASSWORD: "yes"
- name: mysql
id: mysql:latest
env:
MYSQL_DATABASE: gorm
MYSQL_USER: gorm
MYSQL_PASSWORD: gorm
MYSQL_RANDOM_ROOT_PASSWORD: "yes"
- name: mysql57
id: mysql:5.7
env:
MYSQL_DATABASE: gorm
MYSQL_USER: gorm
MYSQL_PASSWORD: gorm
MYSQL_RANDOM_ROOT_PASSWORD: "yes"
- name: mysql56
id: mysql:5.6
env:
MYSQL_DATABASE: gorm
MYSQL_USER: gorm
MYSQL_PASSWORD: gorm
MYSQL_RANDOM_ROOT_PASSWORD: "yes"
- name: postgres
id: postgres:latest
env:
POSTGRES_USER: gorm
POSTGRES_PASSWORD: gorm
POSTGRES_DB: gorm
- name: postgres96
id: postgres:9.6
env:
POSTGRES_USER: gorm
POSTGRES_PASSWORD: gorm
POSTGRES_DB: gorm
- name: postgres95
id: postgres:9.5
env:
POSTGRES_USER: gorm
POSTGRES_PASSWORD: gorm
POSTGRES_DB: gorm
- name: postgres94
id: postgres:9.4
env:
POSTGRES_USER: gorm
POSTGRES_PASSWORD: gorm
POSTGRES_DB: gorm
- name: postgres93
id: postgres:9.3
env:
POSTGRES_USER: gorm
POSTGRES_PASSWORD: gorm
POSTGRES_DB: gorm
- name: mssql
id: mcmoe/mssqldocker:latest
env:
ACCEPT_EULA: Y
SA_PASSWORD: LoremIpsum86
MSSQL_DB: gorm
MSSQL_USER: gorm
MSSQL_PASSWORD: LoremIpsum86
# The steps that will be executed in the build pipeline
build:
# The steps that will be executed on build
steps:
# Sets the go workspace and places you package
# at the right place in the workspace tree
- setup-go-workspace
# Gets the dependencies
- script:
name: go get
code: |
cd $WERCKER_SOURCE_DIR
go version
go get -t -v ./...
# Build the project
- script:
name: go build
code: |
go build ./...
# Test the project
- script:
name: test sqlite
code: |
go test -race -v ./...
- script:
name: test mariadb
code: |
GORM_DIALECT=mysql GORM_DSN="gorm:gorm@tcp(mariadb:3306)/gorm?charset=utf8&parseTime=True" go test -race ./...
- script:
name: test mysql
code: |
GORM_DIALECT=mysql GORM_DSN="gorm:gorm@tcp(mysql:3306)/gorm?charset=utf8&parseTime=True" go test -race ./...
- script:
name: test mysql5.7
code: |
GORM_DIALECT=mysql GORM_DSN="gorm:gorm@tcp(mysql57:3306)/gorm?charset=utf8&parseTime=True" go test -race ./...
- script:
name: test mysql5.6
code: |
GORM_DIALECT=mysql GORM_DSN="gorm:gorm@tcp(mysql56:3306)/gorm?charset=utf8&parseTime=True" go test -race ./...
- script:
name: test postgres
code: |
GORM_DIALECT=postgres GORM_DSN="host=postgres user=gorm password=gorm DB.name=gorm port=5432 sslmode=disable" go test -race ./...
- script:
name: test postgres96
code: |
GORM_DIALECT=postgres GORM_DSN="host=postgres96 user=gorm password=gorm DB.name=gorm port=5432 sslmode=disable" go test -race ./...
- script:
name: test postgres95
code: |
GORM_DIALECT=postgres GORM_DSN="host=postgres95 user=gorm password=gorm DB.name=gorm port=5432 sslmode=disable" go test -race ./...
- script:
name: test postgres94
code: |
GORM_DIALECT=postgres GORM_DSN="host=postgres94 user=gorm password=gorm DB.name=gorm port=5432 sslmode=disable" go test -race ./...
- script:
name: test postgres93
code: |
GORM_DIALECT=postgres GORM_DSN="host=postgres93 user=gorm password=gorm DB.name=gorm port=5432 sslmode=disable" go test -race ./...
- script:
name: test mssql
code: |
GORM_DIALECT=mssql GORM_DSN="sqlserver://gorm:LoremIpsum86@mssql:1433?database=gorm" go test -race ./...
- script:
name: codecov
code: |
go test -race -coverprofile=coverage.txt -covermode=atomic ./...
bash <(curl -s https://codecov.io/bash)

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The MIT License (MIT)
Copyright (c) 2015 - Jinzhu
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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# Inflection
Inflection pluralizes and singularizes English nouns
[![wercker status](https://app.wercker.com/status/f8c7432b097d1f4ce636879670be0930/s/master "wercker status")](https://app.wercker.com/project/byKey/f8c7432b097d1f4ce636879670be0930)
## Basic Usage
```go
inflection.Plural("person") => "people"
inflection.Plural("Person") => "People"
inflection.Plural("PERSON") => "PEOPLE"
inflection.Plural("bus") => "buses"
inflection.Plural("BUS") => "BUSES"
inflection.Plural("Bus") => "Buses"
inflection.Singular("people") => "person"
inflection.Singular("People") => "Person"
inflection.Singular("PEOPLE") => "PERSON"
inflection.Singular("buses") => "bus"
inflection.Singular("BUSES") => "BUS"
inflection.Singular("Buses") => "Bus"
inflection.Plural("FancyPerson") => "FancyPeople"
inflection.Singular("FancyPeople") => "FancyPerson"
```
## Register Rules
Standard rules are from Rails's ActiveSupport (https://github.com/rails/rails/blob/master/activesupport/lib/active_support/inflections.rb)
If you want to register more rules, follow:
```
inflection.AddUncountable("fish")
inflection.AddIrregular("person", "people")
inflection.AddPlural("(bu)s$", "${1}ses") # "bus" => "buses" / "BUS" => "BUSES" / "Bus" => "Buses"
inflection.AddSingular("(bus)(es)?$", "${1}") # "buses" => "bus" / "Buses" => "Bus" / "BUSES" => "BUS"
```
## Contributing
You can help to make the project better, check out [http://gorm.io/contribute.html](http://gorm.io/contribute.html) for things you can do.
## Author
**jinzhu**
* <http://github.com/jinzhu>
* <wosmvp@gmail.com>
* <http://twitter.com/zhangjinzhu>
## License
Released under the [MIT License](http://www.opensource.org/licenses/MIT).

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module github.com/jinzhu/inflection

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vendor/github.com/jinzhu/inflection/inflections.go generated vendored Normal file
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/*
Package inflection pluralizes and singularizes English nouns.
inflection.Plural("person") => "people"
inflection.Plural("Person") => "People"
inflection.Plural("PERSON") => "PEOPLE"
inflection.Singular("people") => "person"
inflection.Singular("People") => "Person"
inflection.Singular("PEOPLE") => "PERSON"
inflection.Plural("FancyPerson") => "FancydPeople"
inflection.Singular("FancyPeople") => "FancydPerson"
Standard rules are from Rails's ActiveSupport (https://github.com/rails/rails/blob/master/activesupport/lib/active_support/inflections.rb)
If you want to register more rules, follow:
inflection.AddUncountable("fish")
inflection.AddIrregular("person", "people")
inflection.AddPlural("(bu)s$", "${1}ses") # "bus" => "buses" / "BUS" => "BUSES" / "Bus" => "Buses"
inflection.AddSingular("(bus)(es)?$", "${1}") # "buses" => "bus" / "Buses" => "Bus" / "BUSES" => "BUS"
*/
package inflection
import (
"regexp"
"strings"
)
type inflection struct {
regexp *regexp.Regexp
replace string
}
// Regular is a regexp find replace inflection
type Regular struct {
find string
replace string
}
// Irregular is a hard replace inflection,
// containing both singular and plural forms
type Irregular struct {
singular string
plural string
}
// RegularSlice is a slice of Regular inflections
type RegularSlice []Regular
// IrregularSlice is a slice of Irregular inflections
type IrregularSlice []Irregular
var pluralInflections = RegularSlice{
{"([a-z])$", "${1}s"},
{"s$", "s"},
{"^(ax|test)is$", "${1}es"},
{"(octop|vir)us$", "${1}i"},
{"(octop|vir)i$", "${1}i"},
{"(alias|status)$", "${1}es"},
{"(bu)s$", "${1}ses"},
{"(buffal|tomat)o$", "${1}oes"},
{"([ti])um$", "${1}a"},
{"([ti])a$", "${1}a"},
{"sis$", "ses"},
{"(?:([^f])fe|([lr])f)$", "${1}${2}ves"},
{"(hive)$", "${1}s"},
{"([^aeiouy]|qu)y$", "${1}ies"},
{"(x|ch|ss|sh)$", "${1}es"},
{"(matr|vert|ind)(?:ix|ex)$", "${1}ices"},
{"^(m|l)ouse$", "${1}ice"},
{"^(m|l)ice$", "${1}ice"},
{"^(ox)$", "${1}en"},
{"^(oxen)$", "${1}"},
{"(quiz)$", "${1}zes"},
}
var singularInflections = RegularSlice{
{"s$", ""},
{"(ss)$", "${1}"},
{"(n)ews$", "${1}ews"},
{"([ti])a$", "${1}um"},
{"((a)naly|(b)a|(d)iagno|(p)arenthe|(p)rogno|(s)ynop|(t)he)(sis|ses)$", "${1}sis"},
{"(^analy)(sis|ses)$", "${1}sis"},
{"([^f])ves$", "${1}fe"},
{"(hive)s$", "${1}"},
{"(tive)s$", "${1}"},
{"([lr])ves$", "${1}f"},
{"([^aeiouy]|qu)ies$", "${1}y"},
{"(s)eries$", "${1}eries"},
{"(m)ovies$", "${1}ovie"},
{"(c)ookies$", "${1}ookie"},
{"(x|ch|ss|sh)es$", "${1}"},
{"^(m|l)ice$", "${1}ouse"},
{"(bus)(es)?$", "${1}"},
{"(o)es$", "${1}"},
{"(shoe)s$", "${1}"},
{"(cris|test)(is|es)$", "${1}is"},
{"^(a)x[ie]s$", "${1}xis"},
{"(octop|vir)(us|i)$", "${1}us"},
{"(alias|status)(es)?$", "${1}"},
{"^(ox)en", "${1}"},
{"(vert|ind)ices$", "${1}ex"},
{"(matr)ices$", "${1}ix"},
{"(quiz)zes$", "${1}"},
{"(database)s$", "${1}"},
}
var irregularInflections = IrregularSlice{
{"person", "people"},
{"man", "men"},
{"child", "children"},
{"sex", "sexes"},
{"move", "moves"},
{"mombie", "mombies"},
}
var uncountableInflections = []string{"equipment", "information", "rice", "money", "species", "series", "fish", "sheep", "jeans", "police"}
var compiledPluralMaps []inflection
var compiledSingularMaps []inflection
func compile() {
compiledPluralMaps = []inflection{}
compiledSingularMaps = []inflection{}
for _, uncountable := range uncountableInflections {
inf := inflection{
regexp: regexp.MustCompile("^(?i)(" + uncountable + ")$"),
replace: "${1}",
}
compiledPluralMaps = append(compiledPluralMaps, inf)
compiledSingularMaps = append(compiledSingularMaps, inf)
}
for _, value := range irregularInflections {
infs := []inflection{
inflection{regexp: regexp.MustCompile(strings.ToUpper(value.singular) + "$"), replace: strings.ToUpper(value.plural)},
inflection{regexp: regexp.MustCompile(strings.Title(value.singular) + "$"), replace: strings.Title(value.plural)},
inflection{regexp: regexp.MustCompile(value.singular + "$"), replace: value.plural},
}
compiledPluralMaps = append(compiledPluralMaps, infs...)
}
for _, value := range irregularInflections {
infs := []inflection{
inflection{regexp: regexp.MustCompile(strings.ToUpper(value.plural) + "$"), replace: strings.ToUpper(value.singular)},
inflection{regexp: regexp.MustCompile(strings.Title(value.plural) + "$"), replace: strings.Title(value.singular)},
inflection{regexp: regexp.MustCompile(value.plural + "$"), replace: value.singular},
}
compiledSingularMaps = append(compiledSingularMaps, infs...)
}
for i := len(pluralInflections) - 1; i >= 0; i-- {
value := pluralInflections[i]
infs := []inflection{
inflection{regexp: regexp.MustCompile(strings.ToUpper(value.find)), replace: strings.ToUpper(value.replace)},
inflection{regexp: regexp.MustCompile(value.find), replace: value.replace},
inflection{regexp: regexp.MustCompile("(?i)" + value.find), replace: value.replace},
}
compiledPluralMaps = append(compiledPluralMaps, infs...)
}
for i := len(singularInflections) - 1; i >= 0; i-- {
value := singularInflections[i]
infs := []inflection{
inflection{regexp: regexp.MustCompile(strings.ToUpper(value.find)), replace: strings.ToUpper(value.replace)},
inflection{regexp: regexp.MustCompile(value.find), replace: value.replace},
inflection{regexp: regexp.MustCompile("(?i)" + value.find), replace: value.replace},
}
compiledSingularMaps = append(compiledSingularMaps, infs...)
}
}
func init() {
compile()
}
// AddPlural adds a plural inflection
func AddPlural(find, replace string) {
pluralInflections = append(pluralInflections, Regular{find, replace})
compile()
}
// AddSingular adds a singular inflection
func AddSingular(find, replace string) {
singularInflections = append(singularInflections, Regular{find, replace})
compile()
}
// AddIrregular adds an irregular inflection
func AddIrregular(singular, plural string) {
irregularInflections = append(irregularInflections, Irregular{singular, plural})
compile()
}
// AddUncountable adds an uncountable inflection
func AddUncountable(values ...string) {
uncountableInflections = append(uncountableInflections, values...)
compile()
}
// GetPlural retrieves the plural inflection values
func GetPlural() RegularSlice {
plurals := make(RegularSlice, len(pluralInflections))
copy(plurals, pluralInflections)
return plurals
}
// GetSingular retrieves the singular inflection values
func GetSingular() RegularSlice {
singulars := make(RegularSlice, len(singularInflections))
copy(singulars, singularInflections)
return singulars
}
// GetIrregular retrieves the irregular inflection values
func GetIrregular() IrregularSlice {
irregular := make(IrregularSlice, len(irregularInflections))
copy(irregular, irregularInflections)
return irregular
}
// GetUncountable retrieves the uncountable inflection values
func GetUncountable() []string {
uncountables := make([]string, len(uncountableInflections))
copy(uncountables, uncountableInflections)
return uncountables
}
// SetPlural sets the plural inflections slice
func SetPlural(inflections RegularSlice) {
pluralInflections = inflections
compile()
}
// SetSingular sets the singular inflections slice
func SetSingular(inflections RegularSlice) {
singularInflections = inflections
compile()
}
// SetIrregular sets the irregular inflections slice
func SetIrregular(inflections IrregularSlice) {
irregularInflections = inflections
compile()
}
// SetUncountable sets the uncountable inflections slice
func SetUncountable(inflections []string) {
uncountableInflections = inflections
compile()
}
// Plural converts a word to its plural form
func Plural(str string) string {
for _, inflection := range compiledPluralMaps {
if inflection.regexp.MatchString(str) {
return inflection.regexp.ReplaceAllString(str, inflection.replace)
}
}
return str
}
// Singular converts a word to its singular form
func Singular(str string) string {
for _, inflection := range compiledSingularMaps {
if inflection.regexp.MatchString(str) {
return inflection.regexp.ReplaceAllString(str, inflection.replace)
}
}
return str
}

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box: golang
build:
steps:
- setup-go-workspace
# Gets the dependencies
- script:
name: go get
code: |
go get
# Build the project
- script:
name: go build
code: |
go build ./...
# Test the project
- script:
name: go test
code: |
go test ./...

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.db
*.test
*~
*.swp

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#!/bin/bash
set -eu
client_configure() {
sudo chmod 600 $PQSSLCERTTEST_PATH/postgresql.key
}
pgdg_repository() {
local sourcelist='sources.list.d/postgresql.list'
curl -sS 'https://www.postgresql.org/media/keys/ACCC4CF8.asc' | sudo apt-key add -
echo deb http://apt.postgresql.org/pub/repos/apt/ $(lsb_release -cs)-pgdg main $PGVERSION | sudo tee "/etc/apt/$sourcelist"
sudo apt-get -o Dir::Etc::sourcelist="$sourcelist" -o Dir::Etc::sourceparts='-' -o APT::Get::List-Cleanup='0' update
}
postgresql_configure() {
sudo tee /etc/postgresql/$PGVERSION/main/pg_hba.conf > /dev/null <<-config
local all all trust
hostnossl all pqgossltest 127.0.0.1/32 reject
hostnossl all pqgosslcert 127.0.0.1/32 reject
hostssl all pqgossltest 127.0.0.1/32 trust
hostssl all pqgosslcert 127.0.0.1/32 cert
host all all 127.0.0.1/32 trust
hostnossl all pqgossltest ::1/128 reject
hostnossl all pqgosslcert ::1/128 reject
hostssl all pqgossltest ::1/128 trust
hostssl all pqgosslcert ::1/128 cert
host all all ::1/128 trust
config
xargs sudo install -o postgres -g postgres -m 600 -t /var/lib/postgresql/$PGVERSION/main/ <<-certificates
certs/root.crt
certs/server.crt
certs/server.key
certificates
sort -VCu <<-versions ||
$PGVERSION
9.2
versions
sudo tee -a /etc/postgresql/$PGVERSION/main/postgresql.conf > /dev/null <<-config
ssl_ca_file = 'root.crt'
ssl_cert_file = 'server.crt'
ssl_key_file = 'server.key'
config
echo 127.0.0.1 postgres | sudo tee -a /etc/hosts > /dev/null
sudo service postgresql restart
}
postgresql_install() {
xargs sudo apt-get -y -o Dpkg::Options::='--force-confdef' -o Dpkg::Options::='--force-confnew' install <<-packages
postgresql-$PGVERSION
postgresql-server-dev-$PGVERSION
postgresql-contrib-$PGVERSION
packages
}
postgresql_uninstall() {
sudo service postgresql stop
xargs sudo apt-get -y --purge remove <<-packages
libpq-dev
libpq5
postgresql
postgresql-client-common
postgresql-common
packages
sudo rm -rf /var/lib/postgresql
}
megacheck_install() {
# Lock megacheck version at $MEGACHECK_VERSION to prevent spontaneous
# new error messages in old code.
go get -d honnef.co/go/tools/...
git -C $GOPATH/src/honnef.co/go/tools/ checkout $MEGACHECK_VERSION
go install honnef.co/go/tools/cmd/megacheck
megacheck --version
}
golint_install() {
go get golang.org/x/lint/golint
}
$1

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language: go
go:
- 1.9.x
- 1.10.x
- 1.11.x
- master
sudo: true
env:
global:
- PGUSER=postgres
- PQGOSSLTESTS=1
- PQSSLCERTTEST_PATH=$PWD/certs
- PGHOST=127.0.0.1
- MEGACHECK_VERSION=2017.2.2
matrix:
- PGVERSION=10
- PGVERSION=9.6
- PGVERSION=9.5
- PGVERSION=9.4
- PGVERSION=9.3
- PGVERSION=9.2
- PGVERSION=9.1
- PGVERSION=9.0
before_install:
- ./.travis.sh postgresql_uninstall
- ./.travis.sh pgdg_repository
- ./.travis.sh postgresql_install
- ./.travis.sh postgresql_configure
- ./.travis.sh client_configure
- ./.travis.sh megacheck_install
- ./.travis.sh golint_install
- go get golang.org/x/tools/cmd/goimports
before_script:
- createdb pqgotest
- createuser -DRS pqgossltest
- createuser -DRS pqgosslcert
script:
- >
goimports -d -e $(find -name '*.go') | awk '{ print } END { exit NR == 0 ? 0 : 1 }'
- go vet ./...
- megacheck -go 1.9 ./...
- golint ./...
- PQTEST_BINARY_PARAMETERS=no go test -race -v ./...
- PQTEST_BINARY_PARAMETERS=yes go test -race -v ./...

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## Contributing to pq
`pq` has a backlog of pull requests, but contributions are still very
much welcome. You can help with patch review, submitting bug reports,
or adding new functionality. There is no formal style guide, but
please conform to the style of existing code and general Go formatting
conventions when submitting patches.
### Patch review
Help review existing open pull requests by commenting on the code or
proposed functionality.
### Bug reports
We appreciate any bug reports, but especially ones with self-contained
(doesn't depend on code outside of pq), minimal (can't be simplified
further) test cases. It's especially helpful if you can submit a pull
request with just the failing test case (you'll probably want to
pattern it after the tests in
[conn_test.go](https://github.com/lib/pq/blob/master/conn_test.go).
### New functionality
There are a number of pending patches for new functionality, so
additional feature patches will take a while to merge. Still, patches
are generally reviewed based on usefulness and complexity in addition
to time-in-queue, so if you have a knockout idea, take a shot. Feel
free to open an issue discussion your proposed patch beforehand.

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Copyright (c) 2011-2013, 'pq' Contributors
Portions Copyright (C) 2011 Blake Mizerany
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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# pq - A pure Go postgres driver for Go's database/sql package
[![GoDoc](https://godoc.org/github.com/lib/pq?status.svg)](https://godoc.org/github.com/lib/pq)
[![Build Status](https://travis-ci.org/lib/pq.svg?branch=master)](https://travis-ci.org/lib/pq)
## Install
go get github.com/lib/pq
## Docs
For detailed documentation and basic usage examples, please see the package
documentation at <https://godoc.org/github.com/lib/pq>.
## Tests
`go test` is used for testing. See [TESTS.md](TESTS.md) for more details.
## Features
* SSL
* Handles bad connections for `database/sql`
* Scan `time.Time` correctly (i.e. `timestamp[tz]`, `time[tz]`, `date`)
* Scan binary blobs correctly (i.e. `bytea`)
* Package for `hstore` support
* COPY FROM support
* pq.ParseURL for converting urls to connection strings for sql.Open.
* Many libpq compatible environment variables
* Unix socket support
* Notifications: `LISTEN`/`NOTIFY`
* pgpass support
## Future / Things you can help with
* Better COPY FROM / COPY TO (see discussion in #181)
## Thank you (alphabetical)
Some of these contributors are from the original library `bmizerany/pq.go` whose
code still exists in here.
* Andy Balholm (andybalholm)
* Ben Berkert (benburkert)
* Benjamin Heatwole (bheatwole)
* Bill Mill (llimllib)
* Bjørn Madsen (aeons)
* Blake Gentry (bgentry)
* Brad Fitzpatrick (bradfitz)
* Charlie Melbye (cmelbye)
* Chris Bandy (cbandy)
* Chris Gilling (cgilling)
* Chris Walsh (cwds)
* Dan Sosedoff (sosedoff)
* Daniel Farina (fdr)
* Eric Chlebek (echlebek)
* Eric Garrido (minusnine)
* Eric Urban (hydrogen18)
* Everyone at The Go Team
* Evan Shaw (edsrzf)
* Ewan Chou (coocood)
* Fazal Majid (fazalmajid)
* Federico Romero (federomero)
* Fumin (fumin)
* Gary Burd (garyburd)
* Heroku (heroku)
* James Pozdena (jpoz)
* Jason McVetta (jmcvetta)
* Jeremy Jay (pbnjay)
* Joakim Sernbrant (serbaut)
* John Gallagher (jgallagher)
* Jonathan Rudenberg (titanous)
* Joël Stemmer (jstemmer)
* Kamil Kisiel (kisielk)
* Kelly Dunn (kellydunn)
* Keith Rarick (kr)
* Kir Shatrov (kirs)
* Lann Martin (lann)
* Maciek Sakrejda (uhoh-itsmaciek)
* Marc Brinkmann (mbr)
* Marko Tiikkaja (johto)
* Matt Newberry (MattNewberry)
* Matt Robenolt (mattrobenolt)
* Martin Olsen (martinolsen)
* Mike Lewis (mikelikespie)
* Nicolas Patry (Narsil)
* Oliver Tonnhofer (olt)
* Patrick Hayes (phayes)
* Paul Hammond (paulhammond)
* Ryan Smith (ryandotsmith)
* Samuel Stauffer (samuel)
* Timothée Peignier (cyberdelia)
* Travis Cline (tmc)
* TruongSinh Tran-Nguyen (truongsinh)
* Yaismel Miranda (ympons)
* notedit (notedit)

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# Tests
## Running Tests
`go test` is used for testing. A running PostgreSQL
server is required, with the ability to log in. The
database to connect to test with is "pqgotest," on
"localhost" but these can be overridden using [environment
variables](https://www.postgresql.org/docs/9.3/static/libpq-envars.html).
Example:
PGHOST=/run/postgresql go test
## Benchmarks
A benchmark suite can be run as part of the tests:
go test -bench .
## Example setup (Docker)
Run a postgres container:
```
docker run --expose 5432:5432 postgres
```
Run tests:
```
PGHOST=localhost PGPORT=5432 PGUSER=postgres PGSSLMODE=disable PGDATABASE=postgres go test
```

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package pq
import (
"bytes"
"database/sql"
"database/sql/driver"
"encoding/hex"
"fmt"
"reflect"
"strconv"
"strings"
)
var typeByteSlice = reflect.TypeOf([]byte{})
var typeDriverValuer = reflect.TypeOf((*driver.Valuer)(nil)).Elem()
var typeSQLScanner = reflect.TypeOf((*sql.Scanner)(nil)).Elem()
// Array returns the optimal driver.Valuer and sql.Scanner for an array or
// slice of any dimension.
//
// For example:
// db.Query(`SELECT * FROM t WHERE id = ANY($1)`, pq.Array([]int{235, 401}))
//
// var x []sql.NullInt64
// db.QueryRow('SELECT ARRAY[235, 401]').Scan(pq.Array(&x))
//
// Scanning multi-dimensional arrays is not supported. Arrays where the lower
// bound is not one (such as `[0:0]={1}') are not supported.
func Array(a interface{}) interface {
driver.Valuer
sql.Scanner
} {
switch a := a.(type) {
case []bool:
return (*BoolArray)(&a)
case []float64:
return (*Float64Array)(&a)
case []int64:
return (*Int64Array)(&a)
case []string:
return (*StringArray)(&a)
case *[]bool:
return (*BoolArray)(a)
case *[]float64:
return (*Float64Array)(a)
case *[]int64:
return (*Int64Array)(a)
case *[]string:
return (*StringArray)(a)
}
return GenericArray{a}
}
// ArrayDelimiter may be optionally implemented by driver.Valuer or sql.Scanner
// to override the array delimiter used by GenericArray.
type ArrayDelimiter interface {
// ArrayDelimiter returns the delimiter character(s) for this element's type.
ArrayDelimiter() string
}
// BoolArray represents a one-dimensional array of the PostgreSQL boolean type.
type BoolArray []bool
// Scan implements the sql.Scanner interface.
func (a *BoolArray) Scan(src interface{}) error {
switch src := src.(type) {
case []byte:
return a.scanBytes(src)
case string:
return a.scanBytes([]byte(src))
case nil:
*a = nil
return nil
}
return fmt.Errorf("pq: cannot convert %T to BoolArray", src)
}
func (a *BoolArray) scanBytes(src []byte) error {
elems, err := scanLinearArray(src, []byte{','}, "BoolArray")
if err != nil {
return err
}
if *a != nil && len(elems) == 0 {
*a = (*a)[:0]
} else {
b := make(BoolArray, len(elems))
for i, v := range elems {
if len(v) != 1 {
return fmt.Errorf("pq: could not parse boolean array index %d: invalid boolean %q", i, v)
}
switch v[0] {
case 't':
b[i] = true
case 'f':
b[i] = false
default:
return fmt.Errorf("pq: could not parse boolean array index %d: invalid boolean %q", i, v)
}
}
*a = b
}
return nil
}
// Value implements the driver.Valuer interface.
func (a BoolArray) Value() (driver.Value, error) {
if a == nil {
return nil, nil
}
if n := len(a); n > 0 {
// There will be exactly two curly brackets, N bytes of values,
// and N-1 bytes of delimiters.
b := make([]byte, 1+2*n)
for i := 0; i < n; i++ {
b[2*i] = ','
if a[i] {
b[1+2*i] = 't'
} else {
b[1+2*i] = 'f'
}
}
b[0] = '{'
b[2*n] = '}'
return string(b), nil
}
return "{}", nil
}
// ByteaArray represents a one-dimensional array of the PostgreSQL bytea type.
type ByteaArray [][]byte
// Scan implements the sql.Scanner interface.
func (a *ByteaArray) Scan(src interface{}) error {
switch src := src.(type) {
case []byte:
return a.scanBytes(src)
case string:
return a.scanBytes([]byte(src))
case nil:
*a = nil
return nil
}
return fmt.Errorf("pq: cannot convert %T to ByteaArray", src)
}
func (a *ByteaArray) scanBytes(src []byte) error {
elems, err := scanLinearArray(src, []byte{','}, "ByteaArray")
if err != nil {
return err
}
if *a != nil && len(elems) == 0 {
*a = (*a)[:0]
} else {
b := make(ByteaArray, len(elems))
for i, v := range elems {
b[i], err = parseBytea(v)
if err != nil {
return fmt.Errorf("could not parse bytea array index %d: %s", i, err.Error())
}
}
*a = b
}
return nil
}
// Value implements the driver.Valuer interface. It uses the "hex" format which
// is only supported on PostgreSQL 9.0 or newer.
func (a ByteaArray) Value() (driver.Value, error) {
if a == nil {
return nil, nil
}
if n := len(a); n > 0 {
// There will be at least two curly brackets, 2*N bytes of quotes,
// 3*N bytes of hex formatting, and N-1 bytes of delimiters.
size := 1 + 6*n
for _, x := range a {
size += hex.EncodedLen(len(x))
}
b := make([]byte, size)
for i, s := 0, b; i < n; i++ {
o := copy(s, `,"\\x`)
o += hex.Encode(s[o:], a[i])
s[o] = '"'
s = s[o+1:]
}
b[0] = '{'
b[size-1] = '}'
return string(b), nil
}
return "{}", nil
}
// Float64Array represents a one-dimensional array of the PostgreSQL double
// precision type.
type Float64Array []float64
// Scan implements the sql.Scanner interface.
func (a *Float64Array) Scan(src interface{}) error {
switch src := src.(type) {
case []byte:
return a.scanBytes(src)
case string:
return a.scanBytes([]byte(src))
case nil:
*a = nil
return nil
}
return fmt.Errorf("pq: cannot convert %T to Float64Array", src)
}
func (a *Float64Array) scanBytes(src []byte) error {
elems, err := scanLinearArray(src, []byte{','}, "Float64Array")
if err != nil {
return err
}
if *a != nil && len(elems) == 0 {
*a = (*a)[:0]
} else {
b := make(Float64Array, len(elems))
for i, v := range elems {
if b[i], err = strconv.ParseFloat(string(v), 64); err != nil {
return fmt.Errorf("pq: parsing array element index %d: %v", i, err)
}
}
*a = b
}
return nil
}
// Value implements the driver.Valuer interface.
func (a Float64Array) Value() (driver.Value, error) {
if a == nil {
return nil, nil
}
if n := len(a); n > 0 {
// There will be at least two curly brackets, N bytes of values,
// and N-1 bytes of delimiters.
b := make([]byte, 1, 1+2*n)
b[0] = '{'
b = strconv.AppendFloat(b, a[0], 'f', -1, 64)
for i := 1; i < n; i++ {
b = append(b, ',')
b = strconv.AppendFloat(b, a[i], 'f', -1, 64)
}
return string(append(b, '}')), nil
}
return "{}", nil
}
// GenericArray implements the driver.Valuer and sql.Scanner interfaces for
// an array or slice of any dimension.
type GenericArray struct{ A interface{} }
func (GenericArray) evaluateDestination(rt reflect.Type) (reflect.Type, func([]byte, reflect.Value) error, string) {
var assign func([]byte, reflect.Value) error
var del = ","
// TODO calculate the assign function for other types
// TODO repeat this section on the element type of arrays or slices (multidimensional)
{
if reflect.PtrTo(rt).Implements(typeSQLScanner) {
// dest is always addressable because it is an element of a slice.
assign = func(src []byte, dest reflect.Value) (err error) {
ss := dest.Addr().Interface().(sql.Scanner)
if src == nil {
err = ss.Scan(nil)
} else {
err = ss.Scan(src)
}
return
}
goto FoundType
}
assign = func([]byte, reflect.Value) error {
return fmt.Errorf("pq: scanning to %s is not implemented; only sql.Scanner", rt)
}
}
FoundType:
if ad, ok := reflect.Zero(rt).Interface().(ArrayDelimiter); ok {
del = ad.ArrayDelimiter()
}
return rt, assign, del
}
// Scan implements the sql.Scanner interface.
func (a GenericArray) Scan(src interface{}) error {
dpv := reflect.ValueOf(a.A)
switch {
case dpv.Kind() != reflect.Ptr:
return fmt.Errorf("pq: destination %T is not a pointer to array or slice", a.A)
case dpv.IsNil():
return fmt.Errorf("pq: destination %T is nil", a.A)
}
dv := dpv.Elem()
switch dv.Kind() {
case reflect.Slice:
case reflect.Array:
default:
return fmt.Errorf("pq: destination %T is not a pointer to array or slice", a.A)
}
switch src := src.(type) {
case []byte:
return a.scanBytes(src, dv)
case string:
return a.scanBytes([]byte(src), dv)
case nil:
if dv.Kind() == reflect.Slice {
dv.Set(reflect.Zero(dv.Type()))
return nil
}
}
return fmt.Errorf("pq: cannot convert %T to %s", src, dv.Type())
}
func (a GenericArray) scanBytes(src []byte, dv reflect.Value) error {
dtype, assign, del := a.evaluateDestination(dv.Type().Elem())
dims, elems, err := parseArray(src, []byte(del))
if err != nil {
return err
}
// TODO allow multidimensional
if len(dims) > 1 {
return fmt.Errorf("pq: scanning from multidimensional ARRAY%s is not implemented",
strings.Replace(fmt.Sprint(dims), " ", "][", -1))
}
// Treat a zero-dimensional array like an array with a single dimension of zero.
if len(dims) == 0 {
dims = append(dims, 0)
}
for i, rt := 0, dv.Type(); i < len(dims); i, rt = i+1, rt.Elem() {
switch rt.Kind() {
case reflect.Slice:
case reflect.Array:
if rt.Len() != dims[i] {
return fmt.Errorf("pq: cannot convert ARRAY%s to %s",
strings.Replace(fmt.Sprint(dims), " ", "][", -1), dv.Type())
}
default:
// TODO handle multidimensional
}
}
values := reflect.MakeSlice(reflect.SliceOf(dtype), len(elems), len(elems))
for i, e := range elems {
if err := assign(e, values.Index(i)); err != nil {
return fmt.Errorf("pq: parsing array element index %d: %v", i, err)
}
}
// TODO handle multidimensional
switch dv.Kind() {
case reflect.Slice:
dv.Set(values.Slice(0, dims[0]))
case reflect.Array:
for i := 0; i < dims[0]; i++ {
dv.Index(i).Set(values.Index(i))
}
}
return nil
}
// Value implements the driver.Valuer interface.
func (a GenericArray) Value() (driver.Value, error) {
if a.A == nil {
return nil, nil
}
rv := reflect.ValueOf(a.A)
switch rv.Kind() {
case reflect.Slice:
if rv.IsNil() {
return nil, nil
}
case reflect.Array:
default:
return nil, fmt.Errorf("pq: Unable to convert %T to array", a.A)
}
if n := rv.Len(); n > 0 {
// There will be at least two curly brackets, N bytes of values,
// and N-1 bytes of delimiters.
b := make([]byte, 0, 1+2*n)
b, _, err := appendArray(b, rv, n)
return string(b), err
}
return "{}", nil
}
// Int64Array represents a one-dimensional array of the PostgreSQL integer types.
type Int64Array []int64
// Scan implements the sql.Scanner interface.
func (a *Int64Array) Scan(src interface{}) error {
switch src := src.(type) {
case []byte:
return a.scanBytes(src)
case string:
return a.scanBytes([]byte(src))
case nil:
*a = nil
return nil
}
return fmt.Errorf("pq: cannot convert %T to Int64Array", src)
}
func (a *Int64Array) scanBytes(src []byte) error {
elems, err := scanLinearArray(src, []byte{','}, "Int64Array")
if err != nil {
return err
}
if *a != nil && len(elems) == 0 {
*a = (*a)[:0]
} else {
b := make(Int64Array, len(elems))
for i, v := range elems {
if b[i], err = strconv.ParseInt(string(v), 10, 64); err != nil {
return fmt.Errorf("pq: parsing array element index %d: %v", i, err)
}
}
*a = b
}
return nil
}
// Value implements the driver.Valuer interface.
func (a Int64Array) Value() (driver.Value, error) {
if a == nil {
return nil, nil
}
if n := len(a); n > 0 {
// There will be at least two curly brackets, N bytes of values,
// and N-1 bytes of delimiters.
b := make([]byte, 1, 1+2*n)
b[0] = '{'
b = strconv.AppendInt(b, a[0], 10)
for i := 1; i < n; i++ {
b = append(b, ',')
b = strconv.AppendInt(b, a[i], 10)
}
return string(append(b, '}')), nil
}
return "{}", nil
}
// StringArray represents a one-dimensional array of the PostgreSQL character types.
type StringArray []string
// Scan implements the sql.Scanner interface.
func (a *StringArray) Scan(src interface{}) error {
switch src := src.(type) {
case []byte:
return a.scanBytes(src)
case string:
return a.scanBytes([]byte(src))
case nil:
*a = nil
return nil
}
return fmt.Errorf("pq: cannot convert %T to StringArray", src)
}
func (a *StringArray) scanBytes(src []byte) error {
elems, err := scanLinearArray(src, []byte{','}, "StringArray")
if err != nil {
return err
}
if *a != nil && len(elems) == 0 {
*a = (*a)[:0]
} else {
b := make(StringArray, len(elems))
for i, v := range elems {
if b[i] = string(v); v == nil {
return fmt.Errorf("pq: parsing array element index %d: cannot convert nil to string", i)
}
}
*a = b
}
return nil
}
// Value implements the driver.Valuer interface.
func (a StringArray) Value() (driver.Value, error) {
if a == nil {
return nil, nil
}
if n := len(a); n > 0 {
// There will be at least two curly brackets, 2*N bytes of quotes,
// and N-1 bytes of delimiters.
b := make([]byte, 1, 1+3*n)
b[0] = '{'
b = appendArrayQuotedBytes(b, []byte(a[0]))
for i := 1; i < n; i++ {
b = append(b, ',')
b = appendArrayQuotedBytes(b, []byte(a[i]))
}
return string(append(b, '}')), nil
}
return "{}", nil
}
// appendArray appends rv to the buffer, returning the extended buffer and
// the delimiter used between elements.
//
// It panics when n <= 0 or rv's Kind is not reflect.Array nor reflect.Slice.
func appendArray(b []byte, rv reflect.Value, n int) ([]byte, string, error) {
var del string
var err error
b = append(b, '{')
if b, del, err = appendArrayElement(b, rv.Index(0)); err != nil {
return b, del, err
}
for i := 1; i < n; i++ {
b = append(b, del...)
if b, del, err = appendArrayElement(b, rv.Index(i)); err != nil {
return b, del, err
}
}
return append(b, '}'), del, nil
}
// appendArrayElement appends rv to the buffer, returning the extended buffer
// and the delimiter to use before the next element.
//
// When rv's Kind is neither reflect.Array nor reflect.Slice, it is converted
// using driver.DefaultParameterConverter and the resulting []byte or string
// is double-quoted.
//
// See http://www.postgresql.org/docs/current/static/arrays.html#ARRAYS-IO
func appendArrayElement(b []byte, rv reflect.Value) ([]byte, string, error) {
if k := rv.Kind(); k == reflect.Array || k == reflect.Slice {
if t := rv.Type(); t != typeByteSlice && !t.Implements(typeDriverValuer) {
if n := rv.Len(); n > 0 {
return appendArray(b, rv, n)
}
return b, "", nil
}
}
var del = ","
var err error
var iv interface{} = rv.Interface()
if ad, ok := iv.(ArrayDelimiter); ok {
del = ad.ArrayDelimiter()
}
if iv, err = driver.DefaultParameterConverter.ConvertValue(iv); err != nil {
return b, del, err
}
switch v := iv.(type) {
case nil:
return append(b, "NULL"...), del, nil
case []byte:
return appendArrayQuotedBytes(b, v), del, nil
case string:
return appendArrayQuotedBytes(b, []byte(v)), del, nil
}
b, err = appendValue(b, iv)
return b, del, err
}
func appendArrayQuotedBytes(b, v []byte) []byte {
b = append(b, '"')
for {
i := bytes.IndexAny(v, `"\`)
if i < 0 {
b = append(b, v...)
break
}
if i > 0 {
b = append(b, v[:i]...)
}
b = append(b, '\\', v[i])
v = v[i+1:]
}
return append(b, '"')
}
func appendValue(b []byte, v driver.Value) ([]byte, error) {
return append(b, encode(nil, v, 0)...), nil
}
// parseArray extracts the dimensions and elements of an array represented in
// text format. Only representations emitted by the backend are supported.
// Notably, whitespace around brackets and delimiters is significant, and NULL
// is case-sensitive.
//
// See http://www.postgresql.org/docs/current/static/arrays.html#ARRAYS-IO
func parseArray(src, del []byte) (dims []int, elems [][]byte, err error) {
var depth, i int
if len(src) < 1 || src[0] != '{' {
return nil, nil, fmt.Errorf("pq: unable to parse array; expected %q at offset %d", '{', 0)
}
Open:
for i < len(src) {
switch src[i] {
case '{':
depth++
i++
case '}':
elems = make([][]byte, 0)
goto Close
default:
break Open
}
}
dims = make([]int, i)
Element:
for i < len(src) {
switch src[i] {
case '{':
if depth == len(dims) {
break Element
}
depth++
dims[depth-1] = 0
i++
case '"':
var elem = []byte{}
var escape bool
for i++; i < len(src); i++ {
if escape {
elem = append(elem, src[i])
escape = false
} else {
switch src[i] {
default:
elem = append(elem, src[i])
case '\\':
escape = true
case '"':
elems = append(elems, elem)
i++
break Element
}
}
}
default:
for start := i; i < len(src); i++ {
if bytes.HasPrefix(src[i:], del) || src[i] == '}' {
elem := src[start:i]
if len(elem) == 0 {
return nil, nil, fmt.Errorf("pq: unable to parse array; unexpected %q at offset %d", src[i], i)
}
if bytes.Equal(elem, []byte("NULL")) {
elem = nil
}
elems = append(elems, elem)
break Element
}
}
}
}
for i < len(src) {
if bytes.HasPrefix(src[i:], del) && depth > 0 {
dims[depth-1]++
i += len(del)
goto Element
} else if src[i] == '}' && depth > 0 {
dims[depth-1]++
depth--
i++
} else {
return nil, nil, fmt.Errorf("pq: unable to parse array; unexpected %q at offset %d", src[i], i)
}
}
Close:
for i < len(src) {
if src[i] == '}' && depth > 0 {
depth--
i++
} else {
return nil, nil, fmt.Errorf("pq: unable to parse array; unexpected %q at offset %d", src[i], i)
}
}
if depth > 0 {
err = fmt.Errorf("pq: unable to parse array; expected %q at offset %d", '}', i)
}
if err == nil {
for _, d := range dims {
if (len(elems) % d) != 0 {
err = fmt.Errorf("pq: multidimensional arrays must have elements with matching dimensions")
}
}
}
return
}
func scanLinearArray(src, del []byte, typ string) (elems [][]byte, err error) {
dims, elems, err := parseArray(src, del)
if err != nil {
return nil, err
}
if len(dims) > 1 {
return nil, fmt.Errorf("pq: cannot convert ARRAY%s to %s", strings.Replace(fmt.Sprint(dims), " ", "][", -1), typ)
}
return elems, err
}

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package pq
import (
"bytes"
"encoding/binary"
"github.com/lib/pq/oid"
)
type readBuf []byte
func (b *readBuf) int32() (n int) {
n = int(int32(binary.BigEndian.Uint32(*b)))
*b = (*b)[4:]
return
}
func (b *readBuf) oid() (n oid.Oid) {
n = oid.Oid(binary.BigEndian.Uint32(*b))
*b = (*b)[4:]
return
}
// N.B: this is actually an unsigned 16-bit integer, unlike int32
func (b *readBuf) int16() (n int) {
n = int(binary.BigEndian.Uint16(*b))
*b = (*b)[2:]
return
}
func (b *readBuf) string() string {
i := bytes.IndexByte(*b, 0)
if i < 0 {
errorf("invalid message format; expected string terminator")
}
s := (*b)[:i]
*b = (*b)[i+1:]
return string(s)
}
func (b *readBuf) next(n int) (v []byte) {
v = (*b)[:n]
*b = (*b)[n:]
return
}
func (b *readBuf) byte() byte {
return b.next(1)[0]
}
type writeBuf struct {
buf []byte
pos int
}
func (b *writeBuf) int32(n int) {
x := make([]byte, 4)
binary.BigEndian.PutUint32(x, uint32(n))
b.buf = append(b.buf, x...)
}
func (b *writeBuf) int16(n int) {
x := make([]byte, 2)
binary.BigEndian.PutUint16(x, uint16(n))
b.buf = append(b.buf, x...)
}
func (b *writeBuf) string(s string) {
b.buf = append(b.buf, (s + "\000")...)
}
func (b *writeBuf) byte(c byte) {
b.buf = append(b.buf, c)
}
func (b *writeBuf) bytes(v []byte) {
b.buf = append(b.buf, v...)
}
func (b *writeBuf) wrap() []byte {
p := b.buf[b.pos:]
binary.BigEndian.PutUint32(p, uint32(len(p)))
return b.buf
}
func (b *writeBuf) next(c byte) {
p := b.buf[b.pos:]
binary.BigEndian.PutUint32(p, uint32(len(p)))
b.pos = len(b.buf) + 1
b.buf = append(b.buf, c, 0, 0, 0, 0)
}

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vendor/github.com/lib/pq/conn.go generated vendored Normal file
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149
vendor/github.com/lib/pq/conn_go18.go generated vendored Normal file
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package pq
import (
"context"
"database/sql"
"database/sql/driver"
"fmt"
"io"
"io/ioutil"
"time"
)
// Implement the "QueryerContext" interface
func (cn *conn) QueryContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Rows, error) {
list := make([]driver.Value, len(args))
for i, nv := range args {
list[i] = nv.Value
}
finish := cn.watchCancel(ctx)
r, err := cn.query(query, list)
if err != nil {
if finish != nil {
finish()
}
return nil, err
}
r.finish = finish
return r, nil
}
// Implement the "ExecerContext" interface
func (cn *conn) ExecContext(ctx context.Context, query string, args []driver.NamedValue) (driver.Result, error) {
list := make([]driver.Value, len(args))
for i, nv := range args {
list[i] = nv.Value
}
if finish := cn.watchCancel(ctx); finish != nil {
defer finish()
}
return cn.Exec(query, list)
}
// Implement the "ConnBeginTx" interface
func (cn *conn) BeginTx(ctx context.Context, opts driver.TxOptions) (driver.Tx, error) {
var mode string
switch sql.IsolationLevel(opts.Isolation) {
case sql.LevelDefault:
// Don't touch mode: use the server's default
case sql.LevelReadUncommitted:
mode = " ISOLATION LEVEL READ UNCOMMITTED"
case sql.LevelReadCommitted:
mode = " ISOLATION LEVEL READ COMMITTED"
case sql.LevelRepeatableRead:
mode = " ISOLATION LEVEL REPEATABLE READ"
case sql.LevelSerializable:
mode = " ISOLATION LEVEL SERIALIZABLE"
default:
return nil, fmt.Errorf("pq: isolation level not supported: %d", opts.Isolation)
}
if opts.ReadOnly {
mode += " READ ONLY"
} else {
mode += " READ WRITE"
}
tx, err := cn.begin(mode)
if err != nil {
return nil, err
}
cn.txnFinish = cn.watchCancel(ctx)
return tx, nil
}
func (cn *conn) Ping(ctx context.Context) error {
if finish := cn.watchCancel(ctx); finish != nil {
defer finish()
}
rows, err := cn.simpleQuery("SELECT 'lib/pq ping test';")
if err != nil {
return driver.ErrBadConn // https://golang.org/pkg/database/sql/driver/#Pinger
}
rows.Close()
return nil
}
func (cn *conn) watchCancel(ctx context.Context) func() {
if done := ctx.Done(); done != nil {
finished := make(chan struct{})
go func() {
select {
case <-done:
// At this point the function level context is canceled,
// so it must not be used for the additional network
// request to cancel the query.
// Create a new context to pass into the dial.
ctxCancel, cancel := context.WithTimeout(context.Background(), time.Second*10)
defer cancel()
_ = cn.cancel(ctxCancel)
finished <- struct{}{}
case <-finished:
}
}()
return func() {
select {
case <-finished:
case finished <- struct{}{}:
}
}
}
return nil
}
func (cn *conn) cancel(ctx context.Context) error {
c, err := dial(ctx, cn.dialer, cn.opts)
if err != nil {
return err
}
defer c.Close()
{
can := conn{
c: c,
}
err = can.ssl(cn.opts)
if err != nil {
return err
}
w := can.writeBuf(0)
w.int32(80877102) // cancel request code
w.int32(cn.processID)
w.int32(cn.secretKey)
if err := can.sendStartupPacket(w); err != nil {
return err
}
}
// Read until EOF to ensure that the server received the cancel.
{
_, err := io.Copy(ioutil.Discard, c)
return err
}
}

110
vendor/github.com/lib/pq/connector.go generated vendored Normal file
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package pq
import (
"context"
"database/sql/driver"
"errors"
"fmt"
"os"
"strings"
)
// Connector represents a fixed configuration for the pq driver with a given
// name. Connector satisfies the database/sql/driver Connector interface and
// can be used to create any number of DB Conn's via the database/sql OpenDB
// function.
//
// See https://golang.org/pkg/database/sql/driver/#Connector.
// See https://golang.org/pkg/database/sql/#OpenDB.
type Connector struct {
opts values
dialer Dialer
}
// Connect returns a connection to the database using the fixed configuration
// of this Connector. Context is not used.
func (c *Connector) Connect(ctx context.Context) (driver.Conn, error) {
return c.open(ctx)
}
// Driver returnst the underlying driver of this Connector.
func (c *Connector) Driver() driver.Driver {
return &Driver{}
}
// NewConnector returns a connector for the pq driver in a fixed configuration
// with the given dsn. The returned connector can be used to create any number
// of equivalent Conn's. The returned connector is intended to be used with
// database/sql.OpenDB.
//
// See https://golang.org/pkg/database/sql/driver/#Connector.
// See https://golang.org/pkg/database/sql/#OpenDB.
func NewConnector(dsn string) (*Connector, error) {
var err error
o := make(values)
// A number of defaults are applied here, in this order:
//
// * Very low precedence defaults applied in every situation
// * Environment variables
// * Explicitly passed connection information
o["host"] = "localhost"
o["port"] = "5432"
// N.B.: Extra float digits should be set to 3, but that breaks
// Postgres 8.4 and older, where the max is 2.
o["extra_float_digits"] = "2"
for k, v := range parseEnviron(os.Environ()) {
o[k] = v
}
if strings.HasPrefix(dsn, "postgres://") || strings.HasPrefix(dsn, "postgresql://") {
dsn, err = ParseURL(dsn)
if err != nil {
return nil, err
}
}
if err := parseOpts(dsn, o); err != nil {
return nil, err
}
// Use the "fallback" application name if necessary
if fallback, ok := o["fallback_application_name"]; ok {
if _, ok := o["application_name"]; !ok {
o["application_name"] = fallback
}
}
// We can't work with any client_encoding other than UTF-8 currently.
// However, we have historically allowed the user to set it to UTF-8
// explicitly, and there's no reason to break such programs, so allow that.
// Note that the "options" setting could also set client_encoding, but
// parsing its value is not worth it. Instead, we always explicitly send
// client_encoding as a separate run-time parameter, which should override
// anything set in options.
if enc, ok := o["client_encoding"]; ok && !isUTF8(enc) {
return nil, errors.New("client_encoding must be absent or 'UTF8'")
}
o["client_encoding"] = "UTF8"
// DateStyle needs a similar treatment.
if datestyle, ok := o["datestyle"]; ok {
if datestyle != "ISO, MDY" {
return nil, fmt.Errorf("setting datestyle must be absent or %v; got %v", "ISO, MDY", datestyle)
}
} else {
o["datestyle"] = "ISO, MDY"
}
// If a user is not provided by any other means, the last
// resort is to use the current operating system provided user
// name.
if _, ok := o["user"]; !ok {
u, err := userCurrent()
if err != nil {
return nil, err
}
o["user"] = u
}
return &Connector{opts: o, dialer: defaultDialer{}}, nil
}

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vendor/github.com/lib/pq/copy.go generated vendored Normal file
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package pq
import (
"database/sql/driver"
"encoding/binary"
"errors"
"fmt"
"sync"
)
var (
errCopyInClosed = errors.New("pq: copyin statement has already been closed")
errBinaryCopyNotSupported = errors.New("pq: only text format supported for COPY")
errCopyToNotSupported = errors.New("pq: COPY TO is not supported")
errCopyNotSupportedOutsideTxn = errors.New("pq: COPY is only allowed inside a transaction")
errCopyInProgress = errors.New("pq: COPY in progress")
)
// CopyIn creates a COPY FROM statement which can be prepared with
// Tx.Prepare(). The target table should be visible in search_path.
func CopyIn(table string, columns ...string) string {
stmt := "COPY " + QuoteIdentifier(table) + " ("
for i, col := range columns {
if i != 0 {
stmt += ", "
}
stmt += QuoteIdentifier(col)
}
stmt += ") FROM STDIN"
return stmt
}
// CopyInSchema creates a COPY FROM statement which can be prepared with
// Tx.Prepare().
func CopyInSchema(schema, table string, columns ...string) string {
stmt := "COPY " + QuoteIdentifier(schema) + "." + QuoteIdentifier(table) + " ("
for i, col := range columns {
if i != 0 {
stmt += ", "
}
stmt += QuoteIdentifier(col)
}
stmt += ") FROM STDIN"
return stmt
}
type copyin struct {
cn *conn
buffer []byte
rowData chan []byte
done chan bool
closed bool
sync.Mutex // guards err
err error
}
const ciBufferSize = 64 * 1024
// flush buffer before the buffer is filled up and needs reallocation
const ciBufferFlushSize = 63 * 1024
func (cn *conn) prepareCopyIn(q string) (_ driver.Stmt, err error) {
if !cn.isInTransaction() {
return nil, errCopyNotSupportedOutsideTxn
}
ci := &copyin{
cn: cn,
buffer: make([]byte, 0, ciBufferSize),
rowData: make(chan []byte),
done: make(chan bool, 1),
}
// add CopyData identifier + 4 bytes for message length
ci.buffer = append(ci.buffer, 'd', 0, 0, 0, 0)
b := cn.writeBuf('Q')
b.string(q)
cn.send(b)
awaitCopyInResponse:
for {
t, r := cn.recv1()
switch t {
case 'G':
if r.byte() != 0 {
err = errBinaryCopyNotSupported
break awaitCopyInResponse
}
go ci.resploop()
return ci, nil
case 'H':
err = errCopyToNotSupported
break awaitCopyInResponse
case 'E':
err = parseError(r)
case 'Z':
if err == nil {
ci.setBad()
errorf("unexpected ReadyForQuery in response to COPY")
}
cn.processReadyForQuery(r)
return nil, err
default:
ci.setBad()
errorf("unknown response for copy query: %q", t)
}
}
// something went wrong, abort COPY before we return
b = cn.writeBuf('f')
b.string(err.Error())
cn.send(b)
for {
t, r := cn.recv1()
switch t {
case 'c', 'C', 'E':
case 'Z':
// correctly aborted, we're done
cn.processReadyForQuery(r)
return nil, err
default:
ci.setBad()
errorf("unknown response for CopyFail: %q", t)
}
}
}
func (ci *copyin) flush(buf []byte) {
// set message length (without message identifier)
binary.BigEndian.PutUint32(buf[1:], uint32(len(buf)-1))
_, err := ci.cn.c.Write(buf)
if err != nil {
panic(err)
}
}
func (ci *copyin) resploop() {
for {
var r readBuf
t, err := ci.cn.recvMessage(&r)
if err != nil {
ci.setBad()
ci.setError(err)
ci.done <- true
return
}
switch t {
case 'C':
// complete
case 'N':
// NoticeResponse
case 'Z':
ci.cn.processReadyForQuery(&r)
ci.done <- true
return
case 'E':
err := parseError(&r)
ci.setError(err)
default:
ci.setBad()
ci.setError(fmt.Errorf("unknown response during CopyIn: %q", t))
ci.done <- true
return
}
}
}
func (ci *copyin) setBad() {
ci.Lock()
ci.cn.bad = true
ci.Unlock()
}
func (ci *copyin) isBad() bool {
ci.Lock()
b := ci.cn.bad
ci.Unlock()
return b
}
func (ci *copyin) isErrorSet() bool {
ci.Lock()
isSet := (ci.err != nil)
ci.Unlock()
return isSet
}
// setError() sets ci.err if one has not been set already. Caller must not be
// holding ci.Mutex.
func (ci *copyin) setError(err error) {
ci.Lock()
if ci.err == nil {
ci.err = err
}
ci.Unlock()
}
func (ci *copyin) NumInput() int {
return -1
}
func (ci *copyin) Query(v []driver.Value) (r driver.Rows, err error) {
return nil, ErrNotSupported
}
// Exec inserts values into the COPY stream. The insert is asynchronous
// and Exec can return errors from previous Exec calls to the same
// COPY stmt.
//
// You need to call Exec(nil) to sync the COPY stream and to get any
// errors from pending data, since Stmt.Close() doesn't return errors
// to the user.
func (ci *copyin) Exec(v []driver.Value) (r driver.Result, err error) {
if ci.closed {
return nil, errCopyInClosed
}
if ci.isBad() {
return nil, driver.ErrBadConn
}
defer ci.cn.errRecover(&err)
if ci.isErrorSet() {
return nil, ci.err
}
if len(v) == 0 {
return nil, ci.Close()
}
numValues := len(v)
for i, value := range v {
ci.buffer = appendEncodedText(&ci.cn.parameterStatus, ci.buffer, value)
if i < numValues-1 {
ci.buffer = append(ci.buffer, '\t')
}
}
ci.buffer = append(ci.buffer, '\n')
if len(ci.buffer) > ciBufferFlushSize {
ci.flush(ci.buffer)
// reset buffer, keep bytes for message identifier and length
ci.buffer = ci.buffer[:5]
}
return driver.RowsAffected(0), nil
}
func (ci *copyin) Close() (err error) {
if ci.closed { // Don't do anything, we're already closed
return nil
}
ci.closed = true
if ci.isBad() {
return driver.ErrBadConn
}
defer ci.cn.errRecover(&err)
if len(ci.buffer) > 0 {
ci.flush(ci.buffer)
}
// Avoid touching the scratch buffer as resploop could be using it.
err = ci.cn.sendSimpleMessage('c')
if err != nil {
return err
}
<-ci.done
ci.cn.inCopy = false
if ci.isErrorSet() {
err = ci.err
return err
}
return nil
}

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vendor/github.com/lib/pq/doc.go generated vendored Normal file
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/*
Package pq is a pure Go Postgres driver for the database/sql package.
In most cases clients will use the database/sql package instead of
using this package directly. For example:
import (
"database/sql"
_ "github.com/lib/pq"
)
func main() {
connStr := "user=pqgotest dbname=pqgotest sslmode=verify-full"
db, err := sql.Open("postgres", connStr)
if err != nil {
log.Fatal(err)
}
age := 21
rows, err := db.Query("SELECT name FROM users WHERE age = $1", age)
…
}
You can also connect to a database using a URL. For example:
connStr := "postgres://pqgotest:password@localhost/pqgotest?sslmode=verify-full"
db, err := sql.Open("postgres", connStr)
Connection String Parameters
Similarly to libpq, when establishing a connection using pq you are expected to
supply a connection string containing zero or more parameters.
A subset of the connection parameters supported by libpq are also supported by pq.
Additionally, pq also lets you specify run-time parameters (such as search_path or work_mem)
directly in the connection string. This is different from libpq, which does not allow
run-time parameters in the connection string, instead requiring you to supply
them in the options parameter.
For compatibility with libpq, the following special connection parameters are
supported:
* dbname - The name of the database to connect to
* user - The user to sign in as
* password - The user's password
* host - The host to connect to. Values that start with / are for unix
domain sockets. (default is localhost)
* port - The port to bind to. (default is 5432)
* sslmode - Whether or not to use SSL (default is require, this is not
the default for libpq)
* fallback_application_name - An application_name to fall back to if one isn't provided.
* connect_timeout - Maximum wait for connection, in seconds. Zero or
not specified means wait indefinitely.
* sslcert - Cert file location. The file must contain PEM encoded data.
* sslkey - Key file location. The file must contain PEM encoded data.
* sslrootcert - The location of the root certificate file. The file
must contain PEM encoded data.
Valid values for sslmode are:
* disable - No SSL
* require - Always SSL (skip verification)
* verify-ca - Always SSL (verify that the certificate presented by the
server was signed by a trusted CA)
* verify-full - Always SSL (verify that the certification presented by
the server was signed by a trusted CA and the server host name
matches the one in the certificate)
See http://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-CONNSTRING
for more information about connection string parameters.
Use single quotes for values that contain whitespace:
"user=pqgotest password='with spaces'"
A backslash will escape the next character in values:
"user=space\ man password='it\'s valid'"
Note that the connection parameter client_encoding (which sets the
text encoding for the connection) may be set but must be "UTF8",
matching with the same rules as Postgres. It is an error to provide
any other value.
In addition to the parameters listed above, any run-time parameter that can be
set at backend start time can be set in the connection string. For more
information, see
http://www.postgresql.org/docs/current/static/runtime-config.html.
Most environment variables as specified at http://www.postgresql.org/docs/current/static/libpq-envars.html
supported by libpq are also supported by pq. If any of the environment
variables not supported by pq are set, pq will panic during connection
establishment. Environment variables have a lower precedence than explicitly
provided connection parameters.
The pgpass mechanism as described in http://www.postgresql.org/docs/current/static/libpq-pgpass.html
is supported, but on Windows PGPASSFILE must be specified explicitly.
Queries
database/sql does not dictate any specific format for parameter
markers in query strings, and pq uses the Postgres-native ordinal markers,
as shown above. The same marker can be reused for the same parameter:
rows, err := db.Query(`SELECT name FROM users WHERE favorite_fruit = $1
OR age BETWEEN $2 AND $2 + 3`, "orange", 64)
pq does not support the LastInsertId() method of the Result type in database/sql.
To return the identifier of an INSERT (or UPDATE or DELETE), use the Postgres
RETURNING clause with a standard Query or QueryRow call:
var userid int
err := db.QueryRow(`INSERT INTO users(name, favorite_fruit, age)
VALUES('beatrice', 'starfruit', 93) RETURNING id`).Scan(&userid)
For more details on RETURNING, see the Postgres documentation:
http://www.postgresql.org/docs/current/static/sql-insert.html
http://www.postgresql.org/docs/current/static/sql-update.html
http://www.postgresql.org/docs/current/static/sql-delete.html
For additional instructions on querying see the documentation for the database/sql package.
Data Types
Parameters pass through driver.DefaultParameterConverter before they are handled
by this package. When the binary_parameters connection option is enabled,
[]byte values are sent directly to the backend as data in binary format.
This package returns the following types for values from the PostgreSQL backend:
- integer types smallint, integer, and bigint are returned as int64
- floating-point types real and double precision are returned as float64
- character types char, varchar, and text are returned as string
- temporal types date, time, timetz, timestamp, and timestamptz are
returned as time.Time
- the boolean type is returned as bool
- the bytea type is returned as []byte
All other types are returned directly from the backend as []byte values in text format.
Errors
pq may return errors of type *pq.Error which can be interrogated for error details:
if err, ok := err.(*pq.Error); ok {
fmt.Println("pq error:", err.Code.Name())
}
See the pq.Error type for details.
Bulk imports
You can perform bulk imports by preparing a statement returned by pq.CopyIn (or
pq.CopyInSchema) in an explicit transaction (sql.Tx). The returned statement
handle can then be repeatedly "executed" to copy data into the target table.
After all data has been processed you should call Exec() once with no arguments
to flush all buffered data. Any call to Exec() might return an error which
should be handled appropriately, but because of the internal buffering an error
returned by Exec() might not be related to the data passed in the call that
failed.
CopyIn uses COPY FROM internally. It is not possible to COPY outside of an
explicit transaction in pq.
Usage example:
txn, err := db.Begin()
if err != nil {
log.Fatal(err)
}
stmt, err := txn.Prepare(pq.CopyIn("users", "name", "age"))
if err != nil {
log.Fatal(err)
}
for _, user := range users {
_, err = stmt.Exec(user.Name, int64(user.Age))
if err != nil {
log.Fatal(err)
}
}
_, err = stmt.Exec()
if err != nil {
log.Fatal(err)
}
err = stmt.Close()
if err != nil {
log.Fatal(err)
}
err = txn.Commit()
if err != nil {
log.Fatal(err)
}
Notifications
PostgreSQL supports a simple publish/subscribe model over database
connections. See http://www.postgresql.org/docs/current/static/sql-notify.html
for more information about the general mechanism.
To start listening for notifications, you first have to open a new connection
to the database by calling NewListener. This connection can not be used for
anything other than LISTEN / NOTIFY. Calling Listen will open a "notification
channel"; once a notification channel is open, a notification generated on that
channel will effect a send on the Listener.Notify channel. A notification
channel will remain open until Unlisten is called, though connection loss might
result in some notifications being lost. To solve this problem, Listener sends
a nil pointer over the Notify channel any time the connection is re-established
following a connection loss. The application can get information about the
state of the underlying connection by setting an event callback in the call to
NewListener.
A single Listener can safely be used from concurrent goroutines, which means
that there is often no need to create more than one Listener in your
application. However, a Listener is always connected to a single database, so
you will need to create a new Listener instance for every database you want to
receive notifications in.
The channel name in both Listen and Unlisten is case sensitive, and can contain
any characters legal in an identifier (see
http://www.postgresql.org/docs/current/static/sql-syntax-lexical.html#SQL-SYNTAX-IDENTIFIERS
for more information). Note that the channel name will be truncated to 63
bytes by the PostgreSQL server.
You can find a complete, working example of Listener usage at
https://godoc.org/github.com/lib/pq/example/listen.
*/
package pq

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vendor/github.com/lib/pq/encode.go generated vendored Normal file
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package pq
import (
"bytes"
"database/sql/driver"
"encoding/binary"
"encoding/hex"
"errors"
"fmt"
"math"
"strconv"
"strings"
"sync"
"time"
"github.com/lib/pq/oid"
)
func binaryEncode(parameterStatus *parameterStatus, x interface{}) []byte {
switch v := x.(type) {
case []byte:
return v
default:
return encode(parameterStatus, x, oid.T_unknown)
}
}
func encode(parameterStatus *parameterStatus, x interface{}, pgtypOid oid.Oid) []byte {
switch v := x.(type) {
case int64:
return strconv.AppendInt(nil, v, 10)
case float64:
return strconv.AppendFloat(nil, v, 'f', -1, 64)
case []byte:
if pgtypOid == oid.T_bytea {
return encodeBytea(parameterStatus.serverVersion, v)
}
return v
case string:
if pgtypOid == oid.T_bytea {
return encodeBytea(parameterStatus.serverVersion, []byte(v))
}
return []byte(v)
case bool:
return strconv.AppendBool(nil, v)
case time.Time:
return formatTs(v)
default:
errorf("encode: unknown type for %T", v)
}
panic("not reached")
}
func decode(parameterStatus *parameterStatus, s []byte, typ oid.Oid, f format) interface{} {
switch f {
case formatBinary:
return binaryDecode(parameterStatus, s, typ)
case formatText:
return textDecode(parameterStatus, s, typ)
default:
panic("not reached")
}
}
func binaryDecode(parameterStatus *parameterStatus, s []byte, typ oid.Oid) interface{} {
switch typ {
case oid.T_bytea:
return s
case oid.T_int8:
return int64(binary.BigEndian.Uint64(s))
case oid.T_int4:
return int64(int32(binary.BigEndian.Uint32(s)))
case oid.T_int2:
return int64(int16(binary.BigEndian.Uint16(s)))
case oid.T_uuid:
b, err := decodeUUIDBinary(s)
if err != nil {
panic(err)
}
return b
default:
errorf("don't know how to decode binary parameter of type %d", uint32(typ))
}
panic("not reached")
}
func textDecode(parameterStatus *parameterStatus, s []byte, typ oid.Oid) interface{} {
switch typ {
case oid.T_char, oid.T_varchar, oid.T_text:
return string(s)
case oid.T_bytea:
b, err := parseBytea(s)
if err != nil {
errorf("%s", err)
}
return b
case oid.T_timestamptz:
return parseTs(parameterStatus.currentLocation, string(s))
case oid.T_timestamp, oid.T_date:
return parseTs(nil, string(s))
case oid.T_time:
return mustParse("15:04:05", typ, s)
case oid.T_timetz:
return mustParse("15:04:05-07", typ, s)
case oid.T_bool:
return s[0] == 't'
case oid.T_int8, oid.T_int4, oid.T_int2:
i, err := strconv.ParseInt(string(s), 10, 64)
if err != nil {
errorf("%s", err)
}
return i
case oid.T_float4, oid.T_float8:
// We always use 64 bit parsing, regardless of whether the input text is for
// a float4 or float8, because clients expect float64s for all float datatypes
// and returning a 32-bit parsed float64 produces lossy results.
f, err := strconv.ParseFloat(string(s), 64)
if err != nil {
errorf("%s", err)
}
return f
}
return s
}
// appendEncodedText encodes item in text format as required by COPY
// and appends to buf
func appendEncodedText(parameterStatus *parameterStatus, buf []byte, x interface{}) []byte {
switch v := x.(type) {
case int64:
return strconv.AppendInt(buf, v, 10)
case float64:
return strconv.AppendFloat(buf, v, 'f', -1, 64)
case []byte:
encodedBytea := encodeBytea(parameterStatus.serverVersion, v)
return appendEscapedText(buf, string(encodedBytea))
case string:
return appendEscapedText(buf, v)
case bool:
return strconv.AppendBool(buf, v)
case time.Time:
return append(buf, formatTs(v)...)
case nil:
return append(buf, "\\N"...)
default:
errorf("encode: unknown type for %T", v)
}
panic("not reached")
}
func appendEscapedText(buf []byte, text string) []byte {
escapeNeeded := false
startPos := 0
var c byte
// check if we need to escape
for i := 0; i < len(text); i++ {
c = text[i]
if c == '\\' || c == '\n' || c == '\r' || c == '\t' {
escapeNeeded = true
startPos = i
break
}
}
if !escapeNeeded {
return append(buf, text...)
}
// copy till first char to escape, iterate the rest
result := append(buf, text[:startPos]...)
for i := startPos; i < len(text); i++ {
c = text[i]
switch c {
case '\\':
result = append(result, '\\', '\\')
case '\n':
result = append(result, '\\', 'n')
case '\r':
result = append(result, '\\', 'r')
case '\t':
result = append(result, '\\', 't')
default:
result = append(result, c)
}
}
return result
}
func mustParse(f string, typ oid.Oid, s []byte) time.Time {
str := string(s)
// check for a 30-minute-offset timezone
if (typ == oid.T_timestamptz || typ == oid.T_timetz) &&
str[len(str)-3] == ':' {
f += ":00"
}
t, err := time.Parse(f, str)
if err != nil {
errorf("decode: %s", err)
}
return t
}
var errInvalidTimestamp = errors.New("invalid timestamp")
type timestampParser struct {
err error
}
func (p *timestampParser) expect(str string, char byte, pos int) {
if p.err != nil {
return
}
if pos+1 > len(str) {
p.err = errInvalidTimestamp
return
}
if c := str[pos]; c != char && p.err == nil {
p.err = fmt.Errorf("expected '%v' at position %v; got '%v'", char, pos, c)
}
}
func (p *timestampParser) mustAtoi(str string, begin int, end int) int {
if p.err != nil {
return 0
}
if begin < 0 || end < 0 || begin > end || end > len(str) {
p.err = errInvalidTimestamp
return 0
}
result, err := strconv.Atoi(str[begin:end])
if err != nil {
if p.err == nil {
p.err = fmt.Errorf("expected number; got '%v'", str)
}
return 0
}
return result
}
// The location cache caches the time zones typically used by the client.
type locationCache struct {
cache map[int]*time.Location
lock sync.Mutex
}
// All connections share the same list of timezones. Benchmarking shows that
// about 5% speed could be gained by putting the cache in the connection and
// losing the mutex, at the cost of a small amount of memory and a somewhat
// significant increase in code complexity.
var globalLocationCache = newLocationCache()
func newLocationCache() *locationCache {
return &locationCache{cache: make(map[int]*time.Location)}
}
// Returns the cached timezone for the specified offset, creating and caching
// it if necessary.
func (c *locationCache) getLocation(offset int) *time.Location {
c.lock.Lock()
defer c.lock.Unlock()
location, ok := c.cache[offset]
if !ok {
location = time.FixedZone("", offset)
c.cache[offset] = location
}
return location
}
var infinityTsEnabled = false
var infinityTsNegative time.Time
var infinityTsPositive time.Time
const (
infinityTsEnabledAlready = "pq: infinity timestamp enabled already"
infinityTsNegativeMustBeSmaller = "pq: infinity timestamp: negative value must be smaller (before) than positive"
)
// EnableInfinityTs controls the handling of Postgres' "-infinity" and
// "infinity" "timestamp"s.
//
// If EnableInfinityTs is not called, "-infinity" and "infinity" will return
// []byte("-infinity") and []byte("infinity") respectively, and potentially
// cause error "sql: Scan error on column index 0: unsupported driver -> Scan
// pair: []uint8 -> *time.Time", when scanning into a time.Time value.
//
// Once EnableInfinityTs has been called, all connections created using this
// driver will decode Postgres' "-infinity" and "infinity" for "timestamp",
// "timestamp with time zone" and "date" types to the predefined minimum and
// maximum times, respectively. When encoding time.Time values, any time which
// equals or precedes the predefined minimum time will be encoded to
// "-infinity". Any values at or past the maximum time will similarly be
// encoded to "infinity".
//
// If EnableInfinityTs is called with negative >= positive, it will panic.
// Calling EnableInfinityTs after a connection has been established results in
// undefined behavior. If EnableInfinityTs is called more than once, it will
// panic.
func EnableInfinityTs(negative time.Time, positive time.Time) {
if infinityTsEnabled {
panic(infinityTsEnabledAlready)
}
if !negative.Before(positive) {
panic(infinityTsNegativeMustBeSmaller)
}
infinityTsEnabled = true
infinityTsNegative = negative
infinityTsPositive = positive
}
/*
* Testing might want to toggle infinityTsEnabled
*/
func disableInfinityTs() {
infinityTsEnabled = false
}
// This is a time function specific to the Postgres default DateStyle
// setting ("ISO, MDY"), the only one we currently support. This
// accounts for the discrepancies between the parsing available with
// time.Parse and the Postgres date formatting quirks.
func parseTs(currentLocation *time.Location, str string) interface{} {
switch str {
case "-infinity":
if infinityTsEnabled {
return infinityTsNegative
}
return []byte(str)
case "infinity":
if infinityTsEnabled {
return infinityTsPositive
}
return []byte(str)
}
t, err := ParseTimestamp(currentLocation, str)
if err != nil {
panic(err)
}
return t
}
// ParseTimestamp parses Postgres' text format. It returns a time.Time in
// currentLocation iff that time's offset agrees with the offset sent from the
// Postgres server. Otherwise, ParseTimestamp returns a time.Time with the
// fixed offset offset provided by the Postgres server.
func ParseTimestamp(currentLocation *time.Location, str string) (time.Time, error) {
p := timestampParser{}
monSep := strings.IndexRune(str, '-')
// this is Gregorian year, not ISO Year
// In Gregorian system, the year 1 BC is followed by AD 1
year := p.mustAtoi(str, 0, monSep)
daySep := monSep + 3
month := p.mustAtoi(str, monSep+1, daySep)
p.expect(str, '-', daySep)
timeSep := daySep + 3
day := p.mustAtoi(str, daySep+1, timeSep)
minLen := monSep + len("01-01") + 1
isBC := strings.HasSuffix(str, " BC")
if isBC {
minLen += 3
}
var hour, minute, second int
if len(str) > minLen {
p.expect(str, ' ', timeSep)
minSep := timeSep + 3
p.expect(str, ':', minSep)
hour = p.mustAtoi(str, timeSep+1, minSep)
secSep := minSep + 3
p.expect(str, ':', secSep)
minute = p.mustAtoi(str, minSep+1, secSep)
secEnd := secSep + 3
second = p.mustAtoi(str, secSep+1, secEnd)
}
remainderIdx := monSep + len("01-01 00:00:00") + 1
// Three optional (but ordered) sections follow: the
// fractional seconds, the time zone offset, and the BC
// designation. We set them up here and adjust the other
// offsets if the preceding sections exist.
nanoSec := 0
tzOff := 0
if remainderIdx < len(str) && str[remainderIdx] == '.' {
fracStart := remainderIdx + 1
fracOff := strings.IndexAny(str[fracStart:], "-+ ")
if fracOff < 0 {
fracOff = len(str) - fracStart
}
fracSec := p.mustAtoi(str, fracStart, fracStart+fracOff)
nanoSec = fracSec * (1000000000 / int(math.Pow(10, float64(fracOff))))
remainderIdx += fracOff + 1
}
if tzStart := remainderIdx; tzStart < len(str) && (str[tzStart] == '-' || str[tzStart] == '+') {
// time zone separator is always '-' or '+' (UTC is +00)
var tzSign int
switch c := str[tzStart]; c {
case '-':
tzSign = -1
case '+':
tzSign = +1
default:
return time.Time{}, fmt.Errorf("expected '-' or '+' at position %v; got %v", tzStart, c)
}
tzHours := p.mustAtoi(str, tzStart+1, tzStart+3)
remainderIdx += 3
var tzMin, tzSec int
if remainderIdx < len(str) && str[remainderIdx] == ':' {
tzMin = p.mustAtoi(str, remainderIdx+1, remainderIdx+3)
remainderIdx += 3
}
if remainderIdx < len(str) && str[remainderIdx] == ':' {
tzSec = p.mustAtoi(str, remainderIdx+1, remainderIdx+3)
remainderIdx += 3
}
tzOff = tzSign * ((tzHours * 60 * 60) + (tzMin * 60) + tzSec)
}
var isoYear int
if isBC {
isoYear = 1 - year
remainderIdx += 3
} else {
isoYear = year
}
if remainderIdx < len(str) {
return time.Time{}, fmt.Errorf("expected end of input, got %v", str[remainderIdx:])
}
t := time.Date(isoYear, time.Month(month), day,
hour, minute, second, nanoSec,
globalLocationCache.getLocation(tzOff))
if currentLocation != nil {
// Set the location of the returned Time based on the session's
// TimeZone value, but only if the local time zone database agrees with
// the remote database on the offset.
lt := t.In(currentLocation)
_, newOff := lt.Zone()
if newOff == tzOff {
t = lt
}
}
return t, p.err
}
// formatTs formats t into a format postgres understands.
func formatTs(t time.Time) []byte {
if infinityTsEnabled {
// t <= -infinity : ! (t > -infinity)
if !t.After(infinityTsNegative) {
return []byte("-infinity")
}
// t >= infinity : ! (!t < infinity)
if !t.Before(infinityTsPositive) {
return []byte("infinity")
}
}
return FormatTimestamp(t)
}
// FormatTimestamp formats t into Postgres' text format for timestamps.
func FormatTimestamp(t time.Time) []byte {
// Need to send dates before 0001 A.D. with " BC" suffix, instead of the
// minus sign preferred by Go.
// Beware, "0000" in ISO is "1 BC", "-0001" is "2 BC" and so on
bc := false
if t.Year() <= 0 {
// flip year sign, and add 1, e.g: "0" will be "1", and "-10" will be "11"
t = t.AddDate((-t.Year())*2+1, 0, 0)
bc = true
}
b := []byte(t.Format("2006-01-02 15:04:05.999999999Z07:00"))
_, offset := t.Zone()
offset = offset % 60
if offset != 0 {
// RFC3339Nano already printed the minus sign
if offset < 0 {
offset = -offset
}
b = append(b, ':')
if offset < 10 {
b = append(b, '0')
}
b = strconv.AppendInt(b, int64(offset), 10)
}
if bc {
b = append(b, " BC"...)
}
return b
}
// Parse a bytea value received from the server. Both "hex" and the legacy
// "escape" format are supported.
func parseBytea(s []byte) (result []byte, err error) {
if len(s) >= 2 && bytes.Equal(s[:2], []byte("\\x")) {
// bytea_output = hex
s = s[2:] // trim off leading "\\x"
result = make([]byte, hex.DecodedLen(len(s)))
_, err := hex.Decode(result, s)
if err != nil {
return nil, err
}
} else {
// bytea_output = escape
for len(s) > 0 {
if s[0] == '\\' {
// escaped '\\'
if len(s) >= 2 && s[1] == '\\' {
result = append(result, '\\')
s = s[2:]
continue
}
// '\\' followed by an octal number
if len(s) < 4 {
return nil, fmt.Errorf("invalid bytea sequence %v", s)
}
r, err := strconv.ParseInt(string(s[1:4]), 8, 9)
if err != nil {
return nil, fmt.Errorf("could not parse bytea value: %s", err.Error())
}
result = append(result, byte(r))
s = s[4:]
} else {
// We hit an unescaped, raw byte. Try to read in as many as
// possible in one go.
i := bytes.IndexByte(s, '\\')
if i == -1 {
result = append(result, s...)
break
}
result = append(result, s[:i]...)
s = s[i:]
}
}
}
return result, nil
}
func encodeBytea(serverVersion int, v []byte) (result []byte) {
if serverVersion >= 90000 {
// Use the hex format if we know that the server supports it
result = make([]byte, 2+hex.EncodedLen(len(v)))
result[0] = '\\'
result[1] = 'x'
hex.Encode(result[2:], v)
} else {
// .. or resort to "escape"
for _, b := range v {
if b == '\\' {
result = append(result, '\\', '\\')
} else if b < 0x20 || b > 0x7e {
result = append(result, []byte(fmt.Sprintf("\\%03o", b))...)
} else {
result = append(result, b)
}
}
}
return result
}
// NullTime represents a time.Time that may be null. NullTime implements the
// sql.Scanner interface so it can be used as a scan destination, similar to
// sql.NullString.
type NullTime struct {
Time time.Time
Valid bool // Valid is true if Time is not NULL
}
// Scan implements the Scanner interface.
func (nt *NullTime) Scan(value interface{}) error {
nt.Time, nt.Valid = value.(time.Time)
return nil
}
// Value implements the driver Valuer interface.
func (nt NullTime) Value() (driver.Value, error) {
if !nt.Valid {
return nil, nil
}
return nt.Time, nil
}

515
vendor/github.com/lib/pq/error.go generated vendored Normal file
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@ -0,0 +1,515 @@
package pq
import (
"database/sql/driver"
"fmt"
"io"
"net"
"runtime"
)
// Error severities
const (
Efatal = "FATAL"
Epanic = "PANIC"
Ewarning = "WARNING"
Enotice = "NOTICE"
Edebug = "DEBUG"
Einfo = "INFO"
Elog = "LOG"
)
// Error represents an error communicating with the server.
//
// See http://www.postgresql.org/docs/current/static/protocol-error-fields.html for details of the fields
type Error struct {
Severity string
Code ErrorCode
Message string
Detail string
Hint string
Position string
InternalPosition string
InternalQuery string
Where string
Schema string
Table string
Column string
DataTypeName string
Constraint string
File string
Line string
Routine string
}
// ErrorCode is a five-character error code.
type ErrorCode string
// Name returns a more human friendly rendering of the error code, namely the
// "condition name".
//
// See http://www.postgresql.org/docs/9.3/static/errcodes-appendix.html for
// details.
func (ec ErrorCode) Name() string {
return errorCodeNames[ec]
}
// ErrorClass is only the class part of an error code.
type ErrorClass string
// Name returns the condition name of an error class. It is equivalent to the
// condition name of the "standard" error code (i.e. the one having the last
// three characters "000").
func (ec ErrorClass) Name() string {
return errorCodeNames[ErrorCode(ec+"000")]
}
// Class returns the error class, e.g. "28".
//
// See http://www.postgresql.org/docs/9.3/static/errcodes-appendix.html for
// details.
func (ec ErrorCode) Class() ErrorClass {
return ErrorClass(ec[0:2])
}
// errorCodeNames is a mapping between the five-character error codes and the
// human readable "condition names". It is derived from the list at
// http://www.postgresql.org/docs/9.3/static/errcodes-appendix.html
var errorCodeNames = map[ErrorCode]string{
// Class 00 - Successful Completion
"00000": "successful_completion",
// Class 01 - Warning
"01000": "warning",
"0100C": "dynamic_result_sets_returned",
"01008": "implicit_zero_bit_padding",
"01003": "null_value_eliminated_in_set_function",
"01007": "privilege_not_granted",
"01006": "privilege_not_revoked",
"01004": "string_data_right_truncation",
"01P01": "deprecated_feature",
// Class 02 - No Data (this is also a warning class per the SQL standard)
"02000": "no_data",
"02001": "no_additional_dynamic_result_sets_returned",
// Class 03 - SQL Statement Not Yet Complete
"03000": "sql_statement_not_yet_complete",
// Class 08 - Connection Exception
"08000": "connection_exception",
"08003": "connection_does_not_exist",
"08006": "connection_failure",
"08001": "sqlclient_unable_to_establish_sqlconnection",
"08004": "sqlserver_rejected_establishment_of_sqlconnection",
"08007": "transaction_resolution_unknown",
"08P01": "protocol_violation",
// Class 09 - Triggered Action Exception
"09000": "triggered_action_exception",
// Class 0A - Feature Not Supported
"0A000": "feature_not_supported",
// Class 0B - Invalid Transaction Initiation
"0B000": "invalid_transaction_initiation",
// Class 0F - Locator Exception
"0F000": "locator_exception",
"0F001": "invalid_locator_specification",
// Class 0L - Invalid Grantor
"0L000": "invalid_grantor",
"0LP01": "invalid_grant_operation",
// Class 0P - Invalid Role Specification
"0P000": "invalid_role_specification",
// Class 0Z - Diagnostics Exception
"0Z000": "diagnostics_exception",
"0Z002": "stacked_diagnostics_accessed_without_active_handler",
// Class 20 - Case Not Found
"20000": "case_not_found",
// Class 21 - Cardinality Violation
"21000": "cardinality_violation",
// Class 22 - Data Exception
"22000": "data_exception",
"2202E": "array_subscript_error",
"22021": "character_not_in_repertoire",
"22008": "datetime_field_overflow",
"22012": "division_by_zero",
"22005": "error_in_assignment",
"2200B": "escape_character_conflict",
"22022": "indicator_overflow",
"22015": "interval_field_overflow",
"2201E": "invalid_argument_for_logarithm",
"22014": "invalid_argument_for_ntile_function",
"22016": "invalid_argument_for_nth_value_function",
"2201F": "invalid_argument_for_power_function",
"2201G": "invalid_argument_for_width_bucket_function",
"22018": "invalid_character_value_for_cast",
"22007": "invalid_datetime_format",
"22019": "invalid_escape_character",
"2200D": "invalid_escape_octet",
"22025": "invalid_escape_sequence",
"22P06": "nonstandard_use_of_escape_character",
"22010": "invalid_indicator_parameter_value",
"22023": "invalid_parameter_value",
"2201B": "invalid_regular_expression",
"2201W": "invalid_row_count_in_limit_clause",
"2201X": "invalid_row_count_in_result_offset_clause",
"22009": "invalid_time_zone_displacement_value",
"2200C": "invalid_use_of_escape_character",
"2200G": "most_specific_type_mismatch",
"22004": "null_value_not_allowed",
"22002": "null_value_no_indicator_parameter",
"22003": "numeric_value_out_of_range",
"2200H": "sequence_generator_limit_exceeded",
"22026": "string_data_length_mismatch",
"22001": "string_data_right_truncation",
"22011": "substring_error",
"22027": "trim_error",
"22024": "unterminated_c_string",
"2200F": "zero_length_character_string",
"22P01": "floating_point_exception",
"22P02": "invalid_text_representation",
"22P03": "invalid_binary_representation",
"22P04": "bad_copy_file_format",
"22P05": "untranslatable_character",
"2200L": "not_an_xml_document",
"2200M": "invalid_xml_document",
"2200N": "invalid_xml_content",
"2200S": "invalid_xml_comment",
"2200T": "invalid_xml_processing_instruction",
// Class 23 - Integrity Constraint Violation
"23000": "integrity_constraint_violation",
"23001": "restrict_violation",
"23502": "not_null_violation",
"23503": "foreign_key_violation",
"23505": "unique_violation",
"23514": "check_violation",
"23P01": "exclusion_violation",
// Class 24 - Invalid Cursor State
"24000": "invalid_cursor_state",
// Class 25 - Invalid Transaction State
"25000": "invalid_transaction_state",
"25001": "active_sql_transaction",
"25002": "branch_transaction_already_active",
"25008": "held_cursor_requires_same_isolation_level",
"25003": "inappropriate_access_mode_for_branch_transaction",
"25004": "inappropriate_isolation_level_for_branch_transaction",
"25005": "no_active_sql_transaction_for_branch_transaction",
"25006": "read_only_sql_transaction",
"25007": "schema_and_data_statement_mixing_not_supported",
"25P01": "no_active_sql_transaction",
"25P02": "in_failed_sql_transaction",
// Class 26 - Invalid SQL Statement Name
"26000": "invalid_sql_statement_name",
// Class 27 - Triggered Data Change Violation
"27000": "triggered_data_change_violation",
// Class 28 - Invalid Authorization Specification
"28000": "invalid_authorization_specification",
"28P01": "invalid_password",
// Class 2B - Dependent Privilege Descriptors Still Exist
"2B000": "dependent_privilege_descriptors_still_exist",
"2BP01": "dependent_objects_still_exist",
// Class 2D - Invalid Transaction Termination
"2D000": "invalid_transaction_termination",
// Class 2F - SQL Routine Exception
"2F000": "sql_routine_exception",
"2F005": "function_executed_no_return_statement",
"2F002": "modifying_sql_data_not_permitted",
"2F003": "prohibited_sql_statement_attempted",
"2F004": "reading_sql_data_not_permitted",
// Class 34 - Invalid Cursor Name
"34000": "invalid_cursor_name",
// Class 38 - External Routine Exception
"38000": "external_routine_exception",
"38001": "containing_sql_not_permitted",
"38002": "modifying_sql_data_not_permitted",
"38003": "prohibited_sql_statement_attempted",
"38004": "reading_sql_data_not_permitted",
// Class 39 - External Routine Invocation Exception
"39000": "external_routine_invocation_exception",
"39001": "invalid_sqlstate_returned",
"39004": "null_value_not_allowed",
"39P01": "trigger_protocol_violated",
"39P02": "srf_protocol_violated",
// Class 3B - Savepoint Exception
"3B000": "savepoint_exception",
"3B001": "invalid_savepoint_specification",
// Class 3D - Invalid Catalog Name
"3D000": "invalid_catalog_name",
// Class 3F - Invalid Schema Name
"3F000": "invalid_schema_name",
// Class 40 - Transaction Rollback
"40000": "transaction_rollback",
"40002": "transaction_integrity_constraint_violation",
"40001": "serialization_failure",
"40003": "statement_completion_unknown",
"40P01": "deadlock_detected",
// Class 42 - Syntax Error or Access Rule Violation
"42000": "syntax_error_or_access_rule_violation",
"42601": "syntax_error",
"42501": "insufficient_privilege",
"42846": "cannot_coerce",
"42803": "grouping_error",
"42P20": "windowing_error",
"42P19": "invalid_recursion",
"42830": "invalid_foreign_key",
"42602": "invalid_name",
"42622": "name_too_long",
"42939": "reserved_name",
"42804": "datatype_mismatch",
"42P18": "indeterminate_datatype",
"42P21": "collation_mismatch",
"42P22": "indeterminate_collation",
"42809": "wrong_object_type",
"42703": "undefined_column",
"42883": "undefined_function",
"42P01": "undefined_table",
"42P02": "undefined_parameter",
"42704": "undefined_object",
"42701": "duplicate_column",
"42P03": "duplicate_cursor",
"42P04": "duplicate_database",
"42723": "duplicate_function",
"42P05": "duplicate_prepared_statement",
"42P06": "duplicate_schema",
"42P07": "duplicate_table",
"42712": "duplicate_alias",
"42710": "duplicate_object",
"42702": "ambiguous_column",
"42725": "ambiguous_function",
"42P08": "ambiguous_parameter",
"42P09": "ambiguous_alias",
"42P10": "invalid_column_reference",
"42611": "invalid_column_definition",
"42P11": "invalid_cursor_definition",
"42P12": "invalid_database_definition",
"42P13": "invalid_function_definition",
"42P14": "invalid_prepared_statement_definition",
"42P15": "invalid_schema_definition",
"42P16": "invalid_table_definition",
"42P17": "invalid_object_definition",
// Class 44 - WITH CHECK OPTION Violation
"44000": "with_check_option_violation",
// Class 53 - Insufficient Resources
"53000": "insufficient_resources",
"53100": "disk_full",
"53200": "out_of_memory",
"53300": "too_many_connections",
"53400": "configuration_limit_exceeded",
// Class 54 - Program Limit Exceeded
"54000": "program_limit_exceeded",
"54001": "statement_too_complex",
"54011": "too_many_columns",
"54023": "too_many_arguments",
// Class 55 - Object Not In Prerequisite State
"55000": "object_not_in_prerequisite_state",
"55006": "object_in_use",
"55P02": "cant_change_runtime_param",
"55P03": "lock_not_available",
// Class 57 - Operator Intervention
"57000": "operator_intervention",
"57014": "query_canceled",
"57P01": "admin_shutdown",
"57P02": "crash_shutdown",
"57P03": "cannot_connect_now",
"57P04": "database_dropped",
// Class 58 - System Error (errors external to PostgreSQL itself)
"58000": "system_error",
"58030": "io_error",
"58P01": "undefined_file",
"58P02": "duplicate_file",
// Class F0 - Configuration File Error
"F0000": "config_file_error",
"F0001": "lock_file_exists",
// Class HV - Foreign Data Wrapper Error (SQL/MED)
"HV000": "fdw_error",
"HV005": "fdw_column_name_not_found",
"HV002": "fdw_dynamic_parameter_value_needed",
"HV010": "fdw_function_sequence_error",
"HV021": "fdw_inconsistent_descriptor_information",
"HV024": "fdw_invalid_attribute_value",
"HV007": "fdw_invalid_column_name",
"HV008": "fdw_invalid_column_number",
"HV004": "fdw_invalid_data_type",
"HV006": "fdw_invalid_data_type_descriptors",
"HV091": "fdw_invalid_descriptor_field_identifier",
"HV00B": "fdw_invalid_handle",
"HV00C": "fdw_invalid_option_index",
"HV00D": "fdw_invalid_option_name",
"HV090": "fdw_invalid_string_length_or_buffer_length",
"HV00A": "fdw_invalid_string_format",
"HV009": "fdw_invalid_use_of_null_pointer",
"HV014": "fdw_too_many_handles",
"HV001": "fdw_out_of_memory",
"HV00P": "fdw_no_schemas",
"HV00J": "fdw_option_name_not_found",
"HV00K": "fdw_reply_handle",
"HV00Q": "fdw_schema_not_found",
"HV00R": "fdw_table_not_found",
"HV00L": "fdw_unable_to_create_execution",
"HV00M": "fdw_unable_to_create_reply",
"HV00N": "fdw_unable_to_establish_connection",
// Class P0 - PL/pgSQL Error
"P0000": "plpgsql_error",
"P0001": "raise_exception",
"P0002": "no_data_found",
"P0003": "too_many_rows",
// Class XX - Internal Error
"XX000": "internal_error",
"XX001": "data_corrupted",
"XX002": "index_corrupted",
}
func parseError(r *readBuf) *Error {
err := new(Error)
for t := r.byte(); t != 0; t = r.byte() {
msg := r.string()
switch t {
case 'S':
err.Severity = msg
case 'C':
err.Code = ErrorCode(msg)
case 'M':
err.Message = msg
case 'D':
err.Detail = msg
case 'H':
err.Hint = msg
case 'P':
err.Position = msg
case 'p':
err.InternalPosition = msg
case 'q':
err.InternalQuery = msg
case 'W':
err.Where = msg
case 's':
err.Schema = msg
case 't':
err.Table = msg
case 'c':
err.Column = msg
case 'd':
err.DataTypeName = msg
case 'n':
err.Constraint = msg
case 'F':
err.File = msg
case 'L':
err.Line = msg
case 'R':
err.Routine = msg
}
}
return err
}
// Fatal returns true if the Error Severity is fatal.
func (err *Error) Fatal() bool {
return err.Severity == Efatal
}
// Get implements the legacy PGError interface. New code should use the fields
// of the Error struct directly.
func (err *Error) Get(k byte) (v string) {
switch k {
case 'S':
return err.Severity
case 'C':
return string(err.Code)
case 'M':
return err.Message
case 'D':
return err.Detail
case 'H':
return err.Hint
case 'P':
return err.Position
case 'p':
return err.InternalPosition
case 'q':
return err.InternalQuery
case 'W':
return err.Where
case 's':
return err.Schema
case 't':
return err.Table
case 'c':
return err.Column
case 'd':
return err.DataTypeName
case 'n':
return err.Constraint
case 'F':
return err.File
case 'L':
return err.Line
case 'R':
return err.Routine
}
return ""
}
func (err Error) Error() string {
return "pq: " + err.Message
}
// PGError is an interface used by previous versions of pq. It is provided
// only to support legacy code. New code should use the Error type.
type PGError interface {
Error() string
Fatal() bool
Get(k byte) (v string)
}
func errorf(s string, args ...interface{}) {
panic(fmt.Errorf("pq: %s", fmt.Sprintf(s, args...)))
}
// TODO(ainar-g) Rename to errorf after removing panics.
func fmterrorf(s string, args ...interface{}) error {
return fmt.Errorf("pq: %s", fmt.Sprintf(s, args...))
}
func errRecoverNoErrBadConn(err *error) {
e := recover()
if e == nil {
// Do nothing
return
}
var ok bool
*err, ok = e.(error)
if !ok {
*err = fmt.Errorf("pq: unexpected error: %#v", e)
}
}
func (c *conn) errRecover(err *error) {
e := recover()
switch v := e.(type) {
case nil:
// Do nothing
case runtime.Error:
c.bad = true
panic(v)
case *Error:
if v.Fatal() {
*err = driver.ErrBadConn
} else {
*err = v
}
case *net.OpError:
c.bad = true
*err = v
case error:
if v == io.EOF || v.(error).Error() == "remote error: handshake failure" {
*err = driver.ErrBadConn
} else {
*err = v
}
default:
c.bad = true
panic(fmt.Sprintf("unknown error: %#v", e))
}
// Any time we return ErrBadConn, we need to remember it since *Tx doesn't
// mark the connection bad in database/sql.
if *err == driver.ErrBadConn {
c.bad = true
}
}

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vendor/github.com/lib/pq/go.mod generated vendored Normal file
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module github.com/lib/pq

797
vendor/github.com/lib/pq/notify.go generated vendored Normal file
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package pq
// Package pq is a pure Go Postgres driver for the database/sql package.
// This module contains support for Postgres LISTEN/NOTIFY.
import (
"errors"
"fmt"
"sync"
"sync/atomic"
"time"
)
// Notification represents a single notification from the database.
type Notification struct {
// Process ID (PID) of the notifying postgres backend.
BePid int
// Name of the channel the notification was sent on.
Channel string
// Payload, or the empty string if unspecified.
Extra string
}
func recvNotification(r *readBuf) *Notification {
bePid := r.int32()
channel := r.string()
extra := r.string()
return &Notification{bePid, channel, extra}
}
const (
connStateIdle int32 = iota
connStateExpectResponse
connStateExpectReadyForQuery
)
type message struct {
typ byte
err error
}
var errListenerConnClosed = errors.New("pq: ListenerConn has been closed")
// ListenerConn is a low-level interface for waiting for notifications. You
// should use Listener instead.
type ListenerConn struct {
// guards cn and err
connectionLock sync.Mutex
cn *conn
err error
connState int32
// the sending goroutine will be holding this lock
senderLock sync.Mutex
notificationChan chan<- *Notification
replyChan chan message
}
// NewListenerConn creates a new ListenerConn. Use NewListener instead.
func NewListenerConn(name string, notificationChan chan<- *Notification) (*ListenerConn, error) {
return newDialListenerConn(defaultDialer{}, name, notificationChan)
}
func newDialListenerConn(d Dialer, name string, c chan<- *Notification) (*ListenerConn, error) {
cn, err := DialOpen(d, name)
if err != nil {
return nil, err
}
l := &ListenerConn{
cn: cn.(*conn),
notificationChan: c,
connState: connStateIdle,
replyChan: make(chan message, 2),
}
go l.listenerConnMain()
return l, nil
}
// We can only allow one goroutine at a time to be running a query on the
// connection for various reasons, so the goroutine sending on the connection
// must be holding senderLock.
//
// Returns an error if an unrecoverable error has occurred and the ListenerConn
// should be abandoned.
func (l *ListenerConn) acquireSenderLock() error {
// we must acquire senderLock first to avoid deadlocks; see ExecSimpleQuery
l.senderLock.Lock()
l.connectionLock.Lock()
err := l.err
l.connectionLock.Unlock()
if err != nil {
l.senderLock.Unlock()
return err
}
return nil
}
func (l *ListenerConn) releaseSenderLock() {
l.senderLock.Unlock()
}
// setState advances the protocol state to newState. Returns false if moving
// to that state from the current state is not allowed.
func (l *ListenerConn) setState(newState int32) bool {
var expectedState int32
switch newState {
case connStateIdle:
expectedState = connStateExpectReadyForQuery
case connStateExpectResponse:
expectedState = connStateIdle
case connStateExpectReadyForQuery:
expectedState = connStateExpectResponse
default:
panic(fmt.Sprintf("unexpected listenerConnState %d", newState))
}
return atomic.CompareAndSwapInt32(&l.connState, expectedState, newState)
}
// Main logic is here: receive messages from the postgres backend, forward
// notifications and query replies and keep the internal state in sync with the
// protocol state. Returns when the connection has been lost, is about to go
// away or should be discarded because we couldn't agree on the state with the
// server backend.
func (l *ListenerConn) listenerConnLoop() (err error) {
defer errRecoverNoErrBadConn(&err)
r := &readBuf{}
for {
t, err := l.cn.recvMessage(r)
if err != nil {
return err
}
switch t {
case 'A':
// recvNotification copies all the data so we don't need to worry
// about the scratch buffer being overwritten.
l.notificationChan <- recvNotification(r)
case 'T', 'D':
// only used by tests; ignore
case 'E':
// We might receive an ErrorResponse even when not in a query; it
// is expected that the server will close the connection after
// that, but we should make sure that the error we display is the
// one from the stray ErrorResponse, not io.ErrUnexpectedEOF.
if !l.setState(connStateExpectReadyForQuery) {
return parseError(r)
}
l.replyChan <- message{t, parseError(r)}
case 'C', 'I':
if !l.setState(connStateExpectReadyForQuery) {
// protocol out of sync
return fmt.Errorf("unexpected CommandComplete")
}
// ExecSimpleQuery doesn't need to know about this message
case 'Z':
if !l.setState(connStateIdle) {
// protocol out of sync
return fmt.Errorf("unexpected ReadyForQuery")
}
l.replyChan <- message{t, nil}
case 'N', 'S':
// ignore
default:
return fmt.Errorf("unexpected message %q from server in listenerConnLoop", t)
}
}
}
// This is the main routine for the goroutine receiving on the database
// connection. Most of the main logic is in listenerConnLoop.
func (l *ListenerConn) listenerConnMain() {
err := l.listenerConnLoop()
// listenerConnLoop terminated; we're done, but we still have to clean up.
// Make sure nobody tries to start any new queries by making sure the err
// pointer is set. It is important that we do not overwrite its value; a
// connection could be closed by either this goroutine or one sending on
// the connection -- whoever closes the connection is assumed to have the
// more meaningful error message (as the other one will probably get
// net.errClosed), so that goroutine sets the error we expose while the
// other error is discarded. If the connection is lost while two
// goroutines are operating on the socket, it probably doesn't matter which
// error we expose so we don't try to do anything more complex.
l.connectionLock.Lock()
if l.err == nil {
l.err = err
}
l.cn.Close()
l.connectionLock.Unlock()
// There might be a query in-flight; make sure nobody's waiting for a
// response to it, since there's not going to be one.
close(l.replyChan)
// let the listener know we're done
close(l.notificationChan)
// this ListenerConn is done
}
// Listen sends a LISTEN query to the server. See ExecSimpleQuery.
func (l *ListenerConn) Listen(channel string) (bool, error) {
return l.ExecSimpleQuery("LISTEN " + QuoteIdentifier(channel))
}
// Unlisten sends an UNLISTEN query to the server. See ExecSimpleQuery.
func (l *ListenerConn) Unlisten(channel string) (bool, error) {
return l.ExecSimpleQuery("UNLISTEN " + QuoteIdentifier(channel))
}
// UnlistenAll sends an `UNLISTEN *` query to the server. See ExecSimpleQuery.
func (l *ListenerConn) UnlistenAll() (bool, error) {
return l.ExecSimpleQuery("UNLISTEN *")
}
// Ping the remote server to make sure it's alive. Non-nil error means the
// connection has failed and should be abandoned.
func (l *ListenerConn) Ping() error {
sent, err := l.ExecSimpleQuery("")
if !sent {
return err
}
if err != nil {
// shouldn't happen
panic(err)
}
return nil
}
// Attempt to send a query on the connection. Returns an error if sending the
// query failed, and the caller should initiate closure of this connection.
// The caller must be holding senderLock (see acquireSenderLock and
// releaseSenderLock).
func (l *ListenerConn) sendSimpleQuery(q string) (err error) {
defer errRecoverNoErrBadConn(&err)
// must set connection state before sending the query
if !l.setState(connStateExpectResponse) {
panic("two queries running at the same time")
}
// Can't use l.cn.writeBuf here because it uses the scratch buffer which
// might get overwritten by listenerConnLoop.
b := &writeBuf{
buf: []byte("Q\x00\x00\x00\x00"),
pos: 1,
}
b.string(q)
l.cn.send(b)
return nil
}
// ExecSimpleQuery executes a "simple query" (i.e. one with no bindable
// parameters) on the connection. The possible return values are:
// 1) "executed" is true; the query was executed to completion on the
// database server. If the query failed, err will be set to the error
// returned by the database, otherwise err will be nil.
// 2) If "executed" is false, the query could not be executed on the remote
// server. err will be non-nil.
//
// After a call to ExecSimpleQuery has returned an executed=false value, the
// connection has either been closed or will be closed shortly thereafter, and
// all subsequently executed queries will return an error.
func (l *ListenerConn) ExecSimpleQuery(q string) (executed bool, err error) {
if err = l.acquireSenderLock(); err != nil {
return false, err
}
defer l.releaseSenderLock()
err = l.sendSimpleQuery(q)
if err != nil {
// We can't know what state the protocol is in, so we need to abandon
// this connection.
l.connectionLock.Lock()
// Set the error pointer if it hasn't been set already; see
// listenerConnMain.
if l.err == nil {
l.err = err
}
l.connectionLock.Unlock()
l.cn.c.Close()
return false, err
}
// now we just wait for a reply..
for {
m, ok := <-l.replyChan
if !ok {
// We lost the connection to server, don't bother waiting for a
// a response. err should have been set already.
l.connectionLock.Lock()
err := l.err
l.connectionLock.Unlock()
return false, err
}
switch m.typ {
case 'Z':
// sanity check
if m.err != nil {
panic("m.err != nil")
}
// done; err might or might not be set
return true, err
case 'E':
// sanity check
if m.err == nil {
panic("m.err == nil")
}
// server responded with an error; ReadyForQuery to follow
err = m.err
default:
return false, fmt.Errorf("unknown response for simple query: %q", m.typ)
}
}
}
// Close closes the connection.
func (l *ListenerConn) Close() error {
l.connectionLock.Lock()
if l.err != nil {
l.connectionLock.Unlock()
return errListenerConnClosed
}
l.err = errListenerConnClosed
l.connectionLock.Unlock()
// We can't send anything on the connection without holding senderLock.
// Simply close the net.Conn to wake up everyone operating on it.
return l.cn.c.Close()
}
// Err returns the reason the connection was closed. It is not safe to call
// this function until l.Notify has been closed.
func (l *ListenerConn) Err() error {
return l.err
}
var errListenerClosed = errors.New("pq: Listener has been closed")
// ErrChannelAlreadyOpen is returned from Listen when a channel is already
// open.
var ErrChannelAlreadyOpen = errors.New("pq: channel is already open")
// ErrChannelNotOpen is returned from Unlisten when a channel is not open.
var ErrChannelNotOpen = errors.New("pq: channel is not open")
// ListenerEventType is an enumeration of listener event types.
type ListenerEventType int
const (
// ListenerEventConnected is emitted only when the database connection
// has been initially initialized. The err argument of the callback
// will always be nil.
ListenerEventConnected ListenerEventType = iota
// ListenerEventDisconnected is emitted after a database connection has
// been lost, either because of an error or because Close has been
// called. The err argument will be set to the reason the database
// connection was lost.
ListenerEventDisconnected
// ListenerEventReconnected is emitted after a database connection has
// been re-established after connection loss. The err argument of the
// callback will always be nil. After this event has been emitted, a
// nil pq.Notification is sent on the Listener.Notify channel.
ListenerEventReconnected
// ListenerEventConnectionAttemptFailed is emitted after a connection
// to the database was attempted, but failed. The err argument will be
// set to an error describing why the connection attempt did not
// succeed.
ListenerEventConnectionAttemptFailed
)
// EventCallbackType is the event callback type. See also ListenerEventType
// constants' documentation.
type EventCallbackType func(event ListenerEventType, err error)
// Listener provides an interface for listening to notifications from a
// PostgreSQL database. For general usage information, see section
// "Notifications".
//
// Listener can safely be used from concurrently running goroutines.
type Listener struct {
// Channel for receiving notifications from the database. In some cases a
// nil value will be sent. See section "Notifications" above.
Notify chan *Notification
name string
minReconnectInterval time.Duration
maxReconnectInterval time.Duration
dialer Dialer
eventCallback EventCallbackType
lock sync.Mutex
isClosed bool
reconnectCond *sync.Cond
cn *ListenerConn
connNotificationChan <-chan *Notification
channels map[string]struct{}
}
// NewListener creates a new database connection dedicated to LISTEN / NOTIFY.
//
// name should be set to a connection string to be used to establish the
// database connection (see section "Connection String Parameters" above).
//
// minReconnectInterval controls the duration to wait before trying to
// re-establish the database connection after connection loss. After each
// consecutive failure this interval is doubled, until maxReconnectInterval is
// reached. Successfully completing the connection establishment procedure
// resets the interval back to minReconnectInterval.
//
// The last parameter eventCallback can be set to a function which will be
// called by the Listener when the state of the underlying database connection
// changes. This callback will be called by the goroutine which dispatches the
// notifications over the Notify channel, so you should try to avoid doing
// potentially time-consuming operations from the callback.
func NewListener(name string,
minReconnectInterval time.Duration,
maxReconnectInterval time.Duration,
eventCallback EventCallbackType) *Listener {
return NewDialListener(defaultDialer{}, name, minReconnectInterval, maxReconnectInterval, eventCallback)
}
// NewDialListener is like NewListener but it takes a Dialer.
func NewDialListener(d Dialer,
name string,
minReconnectInterval time.Duration,
maxReconnectInterval time.Duration,
eventCallback EventCallbackType) *Listener {
l := &Listener{
name: name,
minReconnectInterval: minReconnectInterval,
maxReconnectInterval: maxReconnectInterval,
dialer: d,
eventCallback: eventCallback,
channels: make(map[string]struct{}),
Notify: make(chan *Notification, 32),
}
l.reconnectCond = sync.NewCond(&l.lock)
go l.listenerMain()
return l
}
// NotificationChannel returns the notification channel for this listener.
// This is the same channel as Notify, and will not be recreated during the
// life time of the Listener.
func (l *Listener) NotificationChannel() <-chan *Notification {
return l.Notify
}
// Listen starts listening for notifications on a channel. Calls to this
// function will block until an acknowledgement has been received from the
// server. Note that Listener automatically re-establishes the connection
// after connection loss, so this function may block indefinitely if the
// connection can not be re-established.
//
// Listen will only fail in three conditions:
// 1) The channel is already open. The returned error will be
// ErrChannelAlreadyOpen.
// 2) The query was executed on the remote server, but PostgreSQL returned an
// error message in response to the query. The returned error will be a
// pq.Error containing the information the server supplied.
// 3) Close is called on the Listener before the request could be completed.
//
// The channel name is case-sensitive.
func (l *Listener) Listen(channel string) error {
l.lock.Lock()
defer l.lock.Unlock()
if l.isClosed {
return errListenerClosed
}
// The server allows you to issue a LISTEN on a channel which is already
// open, but it seems useful to be able to detect this case to spot for
// mistakes in application logic. If the application genuinely does't
// care, it can check the exported error and ignore it.
_, exists := l.channels[channel]
if exists {
return ErrChannelAlreadyOpen
}
if l.cn != nil {
// If gotResponse is true but error is set, the query was executed on
// the remote server, but resulted in an error. This should be
// relatively rare, so it's fine if we just pass the error to our
// caller. However, if gotResponse is false, we could not complete the
// query on the remote server and our underlying connection is about
// to go away, so we only add relname to l.channels, and wait for
// resync() to take care of the rest.
gotResponse, err := l.cn.Listen(channel)
if gotResponse && err != nil {
return err
}
}
l.channels[channel] = struct{}{}
for l.cn == nil {
l.reconnectCond.Wait()
// we let go of the mutex for a while
if l.isClosed {
return errListenerClosed
}
}
return nil
}
// Unlisten removes a channel from the Listener's channel list. Returns
// ErrChannelNotOpen if the Listener is not listening on the specified channel.
// Returns immediately with no error if there is no connection. Note that you
// might still get notifications for this channel even after Unlisten has
// returned.
//
// The channel name is case-sensitive.
func (l *Listener) Unlisten(channel string) error {
l.lock.Lock()
defer l.lock.Unlock()
if l.isClosed {
return errListenerClosed
}
// Similarly to LISTEN, this is not an error in Postgres, but it seems
// useful to distinguish from the normal conditions.
_, exists := l.channels[channel]
if !exists {
return ErrChannelNotOpen
}
if l.cn != nil {
// Similarly to Listen (see comment in that function), the caller
// should only be bothered with an error if it came from the backend as
// a response to our query.
gotResponse, err := l.cn.Unlisten(channel)
if gotResponse && err != nil {
return err
}
}
// Don't bother waiting for resync if there's no connection.
delete(l.channels, channel)
return nil
}
// UnlistenAll removes all channels from the Listener's channel list. Returns
// immediately with no error if there is no connection. Note that you might
// still get notifications for any of the deleted channels even after
// UnlistenAll has returned.
func (l *Listener) UnlistenAll() error {
l.lock.Lock()
defer l.lock.Unlock()
if l.isClosed {
return errListenerClosed
}
if l.cn != nil {
// Similarly to Listen (see comment in that function), the caller
// should only be bothered with an error if it came from the backend as
// a response to our query.
gotResponse, err := l.cn.UnlistenAll()
if gotResponse && err != nil {
return err
}
}
// Don't bother waiting for resync if there's no connection.
l.channels = make(map[string]struct{})
return nil
}
// Ping the remote server to make sure it's alive. Non-nil return value means
// that there is no active connection.
func (l *Listener) Ping() error {
l.lock.Lock()
defer l.lock.Unlock()
if l.isClosed {
return errListenerClosed
}
if l.cn == nil {
return errors.New("no connection")
}
return l.cn.Ping()
}
// Clean up after losing the server connection. Returns l.cn.Err(), which
// should have the reason the connection was lost.
func (l *Listener) disconnectCleanup() error {
l.lock.Lock()
defer l.lock.Unlock()
// sanity check; can't look at Err() until the channel has been closed
select {
case _, ok := <-l.connNotificationChan:
if ok {
panic("connNotificationChan not closed")
}
default:
panic("connNotificationChan not closed")
}
err := l.cn.Err()
l.cn.Close()
l.cn = nil
return err
}
// Synchronize the list of channels we want to be listening on with the server
// after the connection has been established.
func (l *Listener) resync(cn *ListenerConn, notificationChan <-chan *Notification) error {
doneChan := make(chan error)
go func(notificationChan <-chan *Notification) {
for channel := range l.channels {
// If we got a response, return that error to our caller as it's
// going to be more descriptive than cn.Err().
gotResponse, err := cn.Listen(channel)
if gotResponse && err != nil {
doneChan <- err
return
}
// If we couldn't reach the server, wait for notificationChan to
// close and then return the error message from the connection, as
// per ListenerConn's interface.
if err != nil {
for range notificationChan {
}
doneChan <- cn.Err()
return
}
}
doneChan <- nil
}(notificationChan)
// Ignore notifications while synchronization is going on to avoid
// deadlocks. We have to send a nil notification over Notify anyway as
// we can't possibly know which notifications (if any) were lost while
// the connection was down, so there's no reason to try and process
// these messages at all.
for {
select {
case _, ok := <-notificationChan:
if !ok {
notificationChan = nil
}
case err := <-doneChan:
return err
}
}
}
// caller should NOT be holding l.lock
func (l *Listener) closed() bool {
l.lock.Lock()
defer l.lock.Unlock()
return l.isClosed
}
func (l *Listener) connect() error {
notificationChan := make(chan *Notification, 32)
cn, err := newDialListenerConn(l.dialer, l.name, notificationChan)
if err != nil {
return err
}
l.lock.Lock()
defer l.lock.Unlock()
err = l.resync(cn, notificationChan)
if err != nil {
cn.Close()
return err
}
l.cn = cn
l.connNotificationChan = notificationChan
l.reconnectCond.Broadcast()
return nil
}
// Close disconnects the Listener from the database and shuts it down.
// Subsequent calls to its methods will return an error. Close returns an
// error if the connection has already been closed.
func (l *Listener) Close() error {
l.lock.Lock()
defer l.lock.Unlock()
if l.isClosed {
return errListenerClosed
}
if l.cn != nil {
l.cn.Close()
}
l.isClosed = true
// Unblock calls to Listen()
l.reconnectCond.Broadcast()
return nil
}
func (l *Listener) emitEvent(event ListenerEventType, err error) {
if l.eventCallback != nil {
l.eventCallback(event, err)
}
}
// Main logic here: maintain a connection to the server when possible, wait
// for notifications and emit events.
func (l *Listener) listenerConnLoop() {
var nextReconnect time.Time
reconnectInterval := l.minReconnectInterval
for {
for {
err := l.connect()
if err == nil {
break
}
if l.closed() {
return
}
l.emitEvent(ListenerEventConnectionAttemptFailed, err)
time.Sleep(reconnectInterval)
reconnectInterval *= 2
if reconnectInterval > l.maxReconnectInterval {
reconnectInterval = l.maxReconnectInterval
}
}
if nextReconnect.IsZero() {
l.emitEvent(ListenerEventConnected, nil)
} else {
l.emitEvent(ListenerEventReconnected, nil)
l.Notify <- nil
}
reconnectInterval = l.minReconnectInterval
nextReconnect = time.Now().Add(reconnectInterval)
for {
notification, ok := <-l.connNotificationChan
if !ok {
// lost connection, loop again
break
}
l.Notify <- notification
}
err := l.disconnectCleanup()
if l.closed() {
return
}
l.emitEvent(ListenerEventDisconnected, err)
time.Sleep(time.Until(nextReconnect))
}
}
func (l *Listener) listenerMain() {
l.listenerConnLoop()
close(l.Notify)
}

6
vendor/github.com/lib/pq/oid/doc.go generated vendored Normal file
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@ -0,0 +1,6 @@
// Package oid contains OID constants
// as defined by the Postgres server.
package oid
// Oid is a Postgres Object ID.
type Oid uint32

343
vendor/github.com/lib/pq/oid/types.go generated vendored Normal file
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@ -0,0 +1,343 @@
// Code generated by gen.go. DO NOT EDIT.
package oid
const (
T_bool Oid = 16
T_bytea Oid = 17
T_char Oid = 18
T_name Oid = 19
T_int8 Oid = 20
T_int2 Oid = 21
T_int2vector Oid = 22
T_int4 Oid = 23
T_regproc Oid = 24
T_text Oid = 25
T_oid Oid = 26
T_tid Oid = 27
T_xid Oid = 28
T_cid Oid = 29
T_oidvector Oid = 30
T_pg_ddl_command Oid = 32
T_pg_type Oid = 71
T_pg_attribute Oid = 75
T_pg_proc Oid = 81
T_pg_class Oid = 83
T_json Oid = 114
T_xml Oid = 142
T__xml Oid = 143
T_pg_node_tree Oid = 194
T__json Oid = 199
T_smgr Oid = 210
T_index_am_handler Oid = 325
T_point Oid = 600
T_lseg Oid = 601
T_path Oid = 602
T_box Oid = 603
T_polygon Oid = 604
T_line Oid = 628
T__line Oid = 629
T_cidr Oid = 650
T__cidr Oid = 651
T_float4 Oid = 700
T_float8 Oid = 701
T_abstime Oid = 702
T_reltime Oid = 703
T_tinterval Oid = 704
T_unknown Oid = 705
T_circle Oid = 718
T__circle Oid = 719
T_money Oid = 790
T__money Oid = 791
T_macaddr Oid = 829
T_inet Oid = 869
T__bool Oid = 1000
T__bytea Oid = 1001
T__char Oid = 1002
T__name Oid = 1003
T__int2 Oid = 1005
T__int2vector Oid = 1006
T__int4 Oid = 1007
T__regproc Oid = 1008
T__text Oid = 1009
T__tid Oid = 1010
T__xid Oid = 1011
T__cid Oid = 1012
T__oidvector Oid = 1013
T__bpchar Oid = 1014
T__varchar Oid = 1015
T__int8 Oid = 1016
T__point Oid = 1017
T__lseg Oid = 1018
T__path Oid = 1019
T__box Oid = 1020
T__float4 Oid = 1021
T__float8 Oid = 1022
T__abstime Oid = 1023
T__reltime Oid = 1024
T__tinterval Oid = 1025
T__polygon Oid = 1027
T__oid Oid = 1028
T_aclitem Oid = 1033
T__aclitem Oid = 1034
T__macaddr Oid = 1040
T__inet Oid = 1041
T_bpchar Oid = 1042
T_varchar Oid = 1043
T_date Oid = 1082
T_time Oid = 1083
T_timestamp Oid = 1114
T__timestamp Oid = 1115
T__date Oid = 1182
T__time Oid = 1183
T_timestamptz Oid = 1184
T__timestamptz Oid = 1185
T_interval Oid = 1186
T__interval Oid = 1187
T__numeric Oid = 1231
T_pg_database Oid = 1248
T__cstring Oid = 1263
T_timetz Oid = 1266
T__timetz Oid = 1270
T_bit Oid = 1560
T__bit Oid = 1561
T_varbit Oid = 1562
T__varbit Oid = 1563
T_numeric Oid = 1700
T_refcursor Oid = 1790
T__refcursor Oid = 2201
T_regprocedure Oid = 2202
T_regoper Oid = 2203
T_regoperator Oid = 2204
T_regclass Oid = 2205
T_regtype Oid = 2206
T__regprocedure Oid = 2207
T__regoper Oid = 2208
T__regoperator Oid = 2209
T__regclass Oid = 2210
T__regtype Oid = 2211
T_record Oid = 2249
T_cstring Oid = 2275
T_any Oid = 2276
T_anyarray Oid = 2277
T_void Oid = 2278
T_trigger Oid = 2279
T_language_handler Oid = 2280
T_internal Oid = 2281
T_opaque Oid = 2282
T_anyelement Oid = 2283
T__record Oid = 2287
T_anynonarray Oid = 2776
T_pg_authid Oid = 2842
T_pg_auth_members Oid = 2843
T__txid_snapshot Oid = 2949
T_uuid Oid = 2950
T__uuid Oid = 2951
T_txid_snapshot Oid = 2970
T_fdw_handler Oid = 3115
T_pg_lsn Oid = 3220
T__pg_lsn Oid = 3221
T_tsm_handler Oid = 3310
T_anyenum Oid = 3500
T_tsvector Oid = 3614
T_tsquery Oid = 3615
T_gtsvector Oid = 3642
T__tsvector Oid = 3643
T__gtsvector Oid = 3644
T__tsquery Oid = 3645
T_regconfig Oid = 3734
T__regconfig Oid = 3735
T_regdictionary Oid = 3769
T__regdictionary Oid = 3770
T_jsonb Oid = 3802
T__jsonb Oid = 3807
T_anyrange Oid = 3831
T_event_trigger Oid = 3838
T_int4range Oid = 3904
T__int4range Oid = 3905
T_numrange Oid = 3906
T__numrange Oid = 3907
T_tsrange Oid = 3908
T__tsrange Oid = 3909
T_tstzrange Oid = 3910
T__tstzrange Oid = 3911
T_daterange Oid = 3912
T__daterange Oid = 3913
T_int8range Oid = 3926
T__int8range Oid = 3927
T_pg_shseclabel Oid = 4066
T_regnamespace Oid = 4089
T__regnamespace Oid = 4090
T_regrole Oid = 4096
T__regrole Oid = 4097
)
var TypeName = map[Oid]string{
T_bool: "BOOL",
T_bytea: "BYTEA",
T_char: "CHAR",
T_name: "NAME",
T_int8: "INT8",
T_int2: "INT2",
T_int2vector: "INT2VECTOR",
T_int4: "INT4",
T_regproc: "REGPROC",
T_text: "TEXT",
T_oid: "OID",
T_tid: "TID",
T_xid: "XID",
T_cid: "CID",
T_oidvector: "OIDVECTOR",
T_pg_ddl_command: "PG_DDL_COMMAND",
T_pg_type: "PG_TYPE",
T_pg_attribute: "PG_ATTRIBUTE",
T_pg_proc: "PG_PROC",
T_pg_class: "PG_CLASS",
T_json: "JSON",
T_xml: "XML",
T__xml: "_XML",
T_pg_node_tree: "PG_NODE_TREE",
T__json: "_JSON",
T_smgr: "SMGR",
T_index_am_handler: "INDEX_AM_HANDLER",
T_point: "POINT",
T_lseg: "LSEG",
T_path: "PATH",
T_box: "BOX",
T_polygon: "POLYGON",
T_line: "LINE",
T__line: "_LINE",
T_cidr: "CIDR",
T__cidr: "_CIDR",
T_float4: "FLOAT4",
T_float8: "FLOAT8",
T_abstime: "ABSTIME",
T_reltime: "RELTIME",
T_tinterval: "TINTERVAL",
T_unknown: "UNKNOWN",
T_circle: "CIRCLE",
T__circle: "_CIRCLE",
T_money: "MONEY",
T__money: "_MONEY",
T_macaddr: "MACADDR",
T_inet: "INET",
T__bool: "_BOOL",
T__bytea: "_BYTEA",
T__char: "_CHAR",
T__name: "_NAME",
T__int2: "_INT2",
T__int2vector: "_INT2VECTOR",
T__int4: "_INT4",
T__regproc: "_REGPROC",
T__text: "_TEXT",
T__tid: "_TID",
T__xid: "_XID",
T__cid: "_CID",
T__oidvector: "_OIDVECTOR",
T__bpchar: "_BPCHAR",
T__varchar: "_VARCHAR",
T__int8: "_INT8",
T__point: "_POINT",
T__lseg: "_LSEG",
T__path: "_PATH",
T__box: "_BOX",
T__float4: "_FLOAT4",
T__float8: "_FLOAT8",
T__abstime: "_ABSTIME",
T__reltime: "_RELTIME",
T__tinterval: "_TINTERVAL",
T__polygon: "_POLYGON",
T__oid: "_OID",
T_aclitem: "ACLITEM",
T__aclitem: "_ACLITEM",
T__macaddr: "_MACADDR",
T__inet: "_INET",
T_bpchar: "BPCHAR",
T_varchar: "VARCHAR",
T_date: "DATE",
T_time: "TIME",
T_timestamp: "TIMESTAMP",
T__timestamp: "_TIMESTAMP",
T__date: "_DATE",
T__time: "_TIME",
T_timestamptz: "TIMESTAMPTZ",
T__timestamptz: "_TIMESTAMPTZ",
T_interval: "INTERVAL",
T__interval: "_INTERVAL",
T__numeric: "_NUMERIC",
T_pg_database: "PG_DATABASE",
T__cstring: "_CSTRING",
T_timetz: "TIMETZ",
T__timetz: "_TIMETZ",
T_bit: "BIT",
T__bit: "_BIT",
T_varbit: "VARBIT",
T__varbit: "_VARBIT",
T_numeric: "NUMERIC",
T_refcursor: "REFCURSOR",
T__refcursor: "_REFCURSOR",
T_regprocedure: "REGPROCEDURE",
T_regoper: "REGOPER",
T_regoperator: "REGOPERATOR",
T_regclass: "REGCLASS",
T_regtype: "REGTYPE",
T__regprocedure: "_REGPROCEDURE",
T__regoper: "_REGOPER",
T__regoperator: "_REGOPERATOR",
T__regclass: "_REGCLASS",
T__regtype: "_REGTYPE",
T_record: "RECORD",
T_cstring: "CSTRING",
T_any: "ANY",
T_anyarray: "ANYARRAY",
T_void: "VOID",
T_trigger: "TRIGGER",
T_language_handler: "LANGUAGE_HANDLER",
T_internal: "INTERNAL",
T_opaque: "OPAQUE",
T_anyelement: "ANYELEMENT",
T__record: "_RECORD",
T_anynonarray: "ANYNONARRAY",
T_pg_authid: "PG_AUTHID",
T_pg_auth_members: "PG_AUTH_MEMBERS",
T__txid_snapshot: "_TXID_SNAPSHOT",
T_uuid: "UUID",
T__uuid: "_UUID",
T_txid_snapshot: "TXID_SNAPSHOT",
T_fdw_handler: "FDW_HANDLER",
T_pg_lsn: "PG_LSN",
T__pg_lsn: "_PG_LSN",
T_tsm_handler: "TSM_HANDLER",
T_anyenum: "ANYENUM",
T_tsvector: "TSVECTOR",
T_tsquery: "TSQUERY",
T_gtsvector: "GTSVECTOR",
T__tsvector: "_TSVECTOR",
T__gtsvector: "_GTSVECTOR",
T__tsquery: "_TSQUERY",
T_regconfig: "REGCONFIG",
T__regconfig: "_REGCONFIG",
T_regdictionary: "REGDICTIONARY",
T__regdictionary: "_REGDICTIONARY",
T_jsonb: "JSONB",
T__jsonb: "_JSONB",
T_anyrange: "ANYRANGE",
T_event_trigger: "EVENT_TRIGGER",
T_int4range: "INT4RANGE",
T__int4range: "_INT4RANGE",
T_numrange: "NUMRANGE",
T__numrange: "_NUMRANGE",
T_tsrange: "TSRANGE",
T__tsrange: "_TSRANGE",
T_tstzrange: "TSTZRANGE",
T__tstzrange: "_TSTZRANGE",
T_daterange: "DATERANGE",
T__daterange: "_DATERANGE",
T_int8range: "INT8RANGE",
T__int8range: "_INT8RANGE",
T_pg_shseclabel: "PG_SHSECLABEL",
T_regnamespace: "REGNAMESPACE",
T__regnamespace: "_REGNAMESPACE",
T_regrole: "REGROLE",
T__regrole: "_REGROLE",
}

93
vendor/github.com/lib/pq/rows.go generated vendored Normal file
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package pq
import (
"math"
"reflect"
"time"
"github.com/lib/pq/oid"
)
const headerSize = 4
type fieldDesc struct {
// The object ID of the data type.
OID oid.Oid
// The data type size (see pg_type.typlen).
// Note that negative values denote variable-width types.
Len int
// The type modifier (see pg_attribute.atttypmod).
// The meaning of the modifier is type-specific.
Mod int
}
func (fd fieldDesc) Type() reflect.Type {
switch fd.OID {
case oid.T_int8:
return reflect.TypeOf(int64(0))
case oid.T_int4:
return reflect.TypeOf(int32(0))
case oid.T_int2:
return reflect.TypeOf(int16(0))
case oid.T_varchar, oid.T_text:
return reflect.TypeOf("")
case oid.T_bool:
return reflect.TypeOf(false)
case oid.T_date, oid.T_time, oid.T_timetz, oid.T_timestamp, oid.T_timestamptz:
return reflect.TypeOf(time.Time{})
case oid.T_bytea:
return reflect.TypeOf([]byte(nil))
default:
return reflect.TypeOf(new(interface{})).Elem()
}
}
func (fd fieldDesc) Name() string {
return oid.TypeName[fd.OID]
}
func (fd fieldDesc) Length() (length int64, ok bool) {
switch fd.OID {
case oid.T_text, oid.T_bytea:
return math.MaxInt64, true
case oid.T_varchar, oid.T_bpchar:
return int64(fd.Mod - headerSize), true
default:
return 0, false
}
}
func (fd fieldDesc) PrecisionScale() (precision, scale int64, ok bool) {
switch fd.OID {
case oid.T_numeric, oid.T__numeric:
mod := fd.Mod - headerSize
precision = int64((mod >> 16) & 0xffff)
scale = int64(mod & 0xffff)
return precision, scale, true
default:
return 0, 0, false
}
}
// ColumnTypeScanType returns the value type that can be used to scan types into.
func (rs *rows) ColumnTypeScanType(index int) reflect.Type {
return rs.colTyps[index].Type()
}
// ColumnTypeDatabaseTypeName return the database system type name.
func (rs *rows) ColumnTypeDatabaseTypeName(index int) string {
return rs.colTyps[index].Name()
}
// ColumnTypeLength returns the length of the column type if the column is a
// variable length type. If the column is not a variable length type ok
// should return false.
func (rs *rows) ColumnTypeLength(index int) (length int64, ok bool) {
return rs.colTyps[index].Length()
}
// ColumnTypePrecisionScale should return the precision and scale for decimal
// types. If not applicable, ok should be false.
func (rs *rows) ColumnTypePrecisionScale(index int) (precision, scale int64, ok bool) {
return rs.colTyps[index].PrecisionScale()
}

264
vendor/github.com/lib/pq/scram/scram.go generated vendored Normal file
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// Copyright (c) 2014 - Gustavo Niemeyer <gustavo@niemeyer.net>
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Pacakage scram implements a SCRAM-{SHA-1,etc} client per RFC5802.
//
// http://tools.ietf.org/html/rfc5802
//
package scram
import (
"bytes"
"crypto/hmac"
"crypto/rand"
"encoding/base64"
"fmt"
"hash"
"strconv"
"strings"
)
// Client implements a SCRAM-* client (SCRAM-SHA-1, SCRAM-SHA-256, etc).
//
// A Client may be used within a SASL conversation with logic resembling:
//
// var in []byte
// var client = scram.NewClient(sha1.New, user, pass)
// for client.Step(in) {
// out := client.Out()
// // send out to server
// in := serverOut
// }
// if client.Err() != nil {
// // auth failed
// }
//
type Client struct {
newHash func() hash.Hash
user string
pass string
step int
out bytes.Buffer
err error
clientNonce []byte
serverNonce []byte
saltedPass []byte
authMsg bytes.Buffer
}
// NewClient returns a new SCRAM-* client with the provided hash algorithm.
//
// For SCRAM-SHA-256, for example, use:
//
// client := scram.NewClient(sha256.New, user, pass)
//
func NewClient(newHash func() hash.Hash, user, pass string) *Client {
c := &Client{
newHash: newHash,
user: user,
pass: pass,
}
c.out.Grow(256)
c.authMsg.Grow(256)
return c
}
// Out returns the data to be sent to the server in the current step.
func (c *Client) Out() []byte {
if c.out.Len() == 0 {
return nil
}
return c.out.Bytes()
}
// Err returns the error that ocurred, or nil if there were no errors.
func (c *Client) Err() error {
return c.err
}
// SetNonce sets the client nonce to the provided value.
// If not set, the nonce is generated automatically out of crypto/rand on the first step.
func (c *Client) SetNonce(nonce []byte) {
c.clientNonce = nonce
}
var escaper = strings.NewReplacer("=", "=3D", ",", "=2C")
// Step processes the incoming data from the server and makes the
// next round of data for the server available via Client.Out.
// Step returns false if there are no errors and more data is
// still expected.
func (c *Client) Step(in []byte) bool {
c.out.Reset()
if c.step > 2 || c.err != nil {
return false
}
c.step++
switch c.step {
case 1:
c.err = c.step1(in)
case 2:
c.err = c.step2(in)
case 3:
c.err = c.step3(in)
}
return c.step > 2 || c.err != nil
}
func (c *Client) step1(in []byte) error {
if len(c.clientNonce) == 0 {
const nonceLen = 16
buf := make([]byte, nonceLen+b64.EncodedLen(nonceLen))
if _, err := rand.Read(buf[:nonceLen]); err != nil {
return fmt.Errorf("cannot read random SCRAM-SHA-256 nonce from operating system: %v", err)
}
c.clientNonce = buf[nonceLen:]
b64.Encode(c.clientNonce, buf[:nonceLen])
}
c.authMsg.WriteString("n=")
escaper.WriteString(&c.authMsg, c.user)
c.authMsg.WriteString(",r=")
c.authMsg.Write(c.clientNonce)
c.out.WriteString("n,,")
c.out.Write(c.authMsg.Bytes())
return nil
}
var b64 = base64.StdEncoding
func (c *Client) step2(in []byte) error {
c.authMsg.WriteByte(',')
c.authMsg.Write(in)
fields := bytes.Split(in, []byte(","))
if len(fields) != 3 {
return fmt.Errorf("expected 3 fields in first SCRAM-SHA-256 server message, got %d: %q", len(fields), in)
}
if !bytes.HasPrefix(fields[0], []byte("r=")) || len(fields[0]) < 2 {
return fmt.Errorf("server sent an invalid SCRAM-SHA-256 nonce: %q", fields[0])
}
if !bytes.HasPrefix(fields[1], []byte("s=")) || len(fields[1]) < 6 {
return fmt.Errorf("server sent an invalid SCRAM-SHA-256 salt: %q", fields[1])
}
if !bytes.HasPrefix(fields[2], []byte("i=")) || len(fields[2]) < 6 {
return fmt.Errorf("server sent an invalid SCRAM-SHA-256 iteration count: %q", fields[2])
}
c.serverNonce = fields[0][2:]
if !bytes.HasPrefix(c.serverNonce, c.clientNonce) {
return fmt.Errorf("server SCRAM-SHA-256 nonce is not prefixed by client nonce: got %q, want %q+\"...\"", c.serverNonce, c.clientNonce)
}
salt := make([]byte, b64.DecodedLen(len(fields[1][2:])))
n, err := b64.Decode(salt, fields[1][2:])
if err != nil {
return fmt.Errorf("cannot decode SCRAM-SHA-256 salt sent by server: %q", fields[1])
}
salt = salt[:n]
iterCount, err := strconv.Atoi(string(fields[2][2:]))
if err != nil {
return fmt.Errorf("server sent an invalid SCRAM-SHA-256 iteration count: %q", fields[2])
}
c.saltPassword(salt, iterCount)
c.authMsg.WriteString(",c=biws,r=")
c.authMsg.Write(c.serverNonce)
c.out.WriteString("c=biws,r=")
c.out.Write(c.serverNonce)
c.out.WriteString(",p=")
c.out.Write(c.clientProof())
return nil
}
func (c *Client) step3(in []byte) error {
var isv, ise bool
var fields = bytes.Split(in, []byte(","))
if len(fields) == 1 {
isv = bytes.HasPrefix(fields[0], []byte("v="))
ise = bytes.HasPrefix(fields[0], []byte("e="))
}
if ise {
return fmt.Errorf("SCRAM-SHA-256 authentication error: %s", fields[0][2:])
} else if !isv {
return fmt.Errorf("unsupported SCRAM-SHA-256 final message from server: %q", in)
}
if !bytes.Equal(c.serverSignature(), fields[0][2:]) {
return fmt.Errorf("cannot authenticate SCRAM-SHA-256 server signature: %q", fields[0][2:])
}
return nil
}
func (c *Client) saltPassword(salt []byte, iterCount int) {
mac := hmac.New(c.newHash, []byte(c.pass))
mac.Write(salt)
mac.Write([]byte{0, 0, 0, 1})
ui := mac.Sum(nil)
hi := make([]byte, len(ui))
copy(hi, ui)
for i := 1; i < iterCount; i++ {
mac.Reset()
mac.Write(ui)
mac.Sum(ui[:0])
for j, b := range ui {
hi[j] ^= b
}
}
c.saltedPass = hi
}
func (c *Client) clientProof() []byte {
mac := hmac.New(c.newHash, c.saltedPass)
mac.Write([]byte("Client Key"))
clientKey := mac.Sum(nil)
hash := c.newHash()
hash.Write(clientKey)
storedKey := hash.Sum(nil)
mac = hmac.New(c.newHash, storedKey)
mac.Write(c.authMsg.Bytes())
clientProof := mac.Sum(nil)
for i, b := range clientKey {
clientProof[i] ^= b
}
clientProof64 := make([]byte, b64.EncodedLen(len(clientProof)))
b64.Encode(clientProof64, clientProof)
return clientProof64
}
func (c *Client) serverSignature() []byte {
mac := hmac.New(c.newHash, c.saltedPass)
mac.Write([]byte("Server Key"))
serverKey := mac.Sum(nil)
mac = hmac.New(c.newHash, serverKey)
mac.Write(c.authMsg.Bytes())
serverSignature := mac.Sum(nil)
encoded := make([]byte, b64.EncodedLen(len(serverSignature)))
b64.Encode(encoded, serverSignature)
return encoded
}

175
vendor/github.com/lib/pq/ssl.go generated vendored Normal file
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@ -0,0 +1,175 @@
package pq
import (
"crypto/tls"
"crypto/x509"
"io/ioutil"
"net"
"os"
"os/user"
"path/filepath"
)
// ssl generates a function to upgrade a net.Conn based on the "sslmode" and
// related settings. The function is nil when no upgrade should take place.
func ssl(o values) (func(net.Conn) (net.Conn, error), error) {
verifyCaOnly := false
tlsConf := tls.Config{}
switch mode := o["sslmode"]; mode {
// "require" is the default.
case "", "require":
// We must skip TLS's own verification since it requires full
// verification since Go 1.3.
tlsConf.InsecureSkipVerify = true
// From http://www.postgresql.org/docs/current/static/libpq-ssl.html:
//
// Note: For backwards compatibility with earlier versions of
// PostgreSQL, if a root CA file exists, the behavior of
// sslmode=require will be the same as that of verify-ca, meaning the
// server certificate is validated against the CA. Relying on this
// behavior is discouraged, and applications that need certificate
// validation should always use verify-ca or verify-full.
if sslrootcert, ok := o["sslrootcert"]; ok {
if _, err := os.Stat(sslrootcert); err == nil {
verifyCaOnly = true
} else {
delete(o, "sslrootcert")
}
}
case "verify-ca":
// We must skip TLS's own verification since it requires full
// verification since Go 1.3.
tlsConf.InsecureSkipVerify = true
verifyCaOnly = true
case "verify-full":
tlsConf.ServerName = o["host"]
case "disable":
return nil, nil
default:
return nil, fmterrorf(`unsupported sslmode %q; only "require" (default), "verify-full", "verify-ca", and "disable" supported`, mode)
}
err := sslClientCertificates(&tlsConf, o)
if err != nil {
return nil, err
}
err = sslCertificateAuthority(&tlsConf, o)
if err != nil {
return nil, err
}
// Accept renegotiation requests initiated by the backend.
//
// Renegotiation was deprecated then removed from PostgreSQL 9.5, but
// the default configuration of older versions has it enabled. Redshift
// also initiates renegotiations and cannot be reconfigured.
tlsConf.Renegotiation = tls.RenegotiateFreelyAsClient
return func(conn net.Conn) (net.Conn, error) {
client := tls.Client(conn, &tlsConf)
if verifyCaOnly {
err := sslVerifyCertificateAuthority(client, &tlsConf)
if err != nil {
return nil, err
}
}
return client, nil
}, nil
}
// sslClientCertificates adds the certificate specified in the "sslcert" and
// "sslkey" settings, or if they aren't set, from the .postgresql directory
// in the user's home directory. The configured files must exist and have
// the correct permissions.
func sslClientCertificates(tlsConf *tls.Config, o values) error {
// user.Current() might fail when cross-compiling. We have to ignore the
// error and continue without home directory defaults, since we wouldn't
// know from where to load them.
user, _ := user.Current()
// In libpq, the client certificate is only loaded if the setting is not blank.
//
// https://github.com/postgres/postgres/blob/REL9_6_2/src/interfaces/libpq/fe-secure-openssl.c#L1036-L1037
sslcert := o["sslcert"]
if len(sslcert) == 0 && user != nil {
sslcert = filepath.Join(user.HomeDir, ".postgresql", "postgresql.crt")
}
// https://github.com/postgres/postgres/blob/REL9_6_2/src/interfaces/libpq/fe-secure-openssl.c#L1045
if len(sslcert) == 0 {
return nil
}
// https://github.com/postgres/postgres/blob/REL9_6_2/src/interfaces/libpq/fe-secure-openssl.c#L1050:L1054
if _, err := os.Stat(sslcert); os.IsNotExist(err) {
return nil
} else if err != nil {
return err
}
// In libpq, the ssl key is only loaded if the setting is not blank.
//
// https://github.com/postgres/postgres/blob/REL9_6_2/src/interfaces/libpq/fe-secure-openssl.c#L1123-L1222
sslkey := o["sslkey"]
if len(sslkey) == 0 && user != nil {
sslkey = filepath.Join(user.HomeDir, ".postgresql", "postgresql.key")
}
if len(sslkey) > 0 {
if err := sslKeyPermissions(sslkey); err != nil {
return err
}
}
cert, err := tls.LoadX509KeyPair(sslcert, sslkey)
if err != nil {
return err
}
tlsConf.Certificates = []tls.Certificate{cert}
return nil
}
// sslCertificateAuthority adds the RootCA specified in the "sslrootcert" setting.
func sslCertificateAuthority(tlsConf *tls.Config, o values) error {
// In libpq, the root certificate is only loaded if the setting is not blank.
//
// https://github.com/postgres/postgres/blob/REL9_6_2/src/interfaces/libpq/fe-secure-openssl.c#L950-L951
if sslrootcert := o["sslrootcert"]; len(sslrootcert) > 0 {
tlsConf.RootCAs = x509.NewCertPool()
cert, err := ioutil.ReadFile(sslrootcert)
if err != nil {
return err
}
if !tlsConf.RootCAs.AppendCertsFromPEM(cert) {
return fmterrorf("couldn't parse pem in sslrootcert")
}
}
return nil
}
// sslVerifyCertificateAuthority carries out a TLS handshake to the server and
// verifies the presented certificate against the CA, i.e. the one specified in
// sslrootcert or the system CA if sslrootcert was not specified.
func sslVerifyCertificateAuthority(client *tls.Conn, tlsConf *tls.Config) error {
err := client.Handshake()
if err != nil {
return err
}
certs := client.ConnectionState().PeerCertificates
opts := x509.VerifyOptions{
DNSName: client.ConnectionState().ServerName,
Intermediates: x509.NewCertPool(),
Roots: tlsConf.RootCAs,
}
for i, cert := range certs {
if i == 0 {
continue
}
opts.Intermediates.AddCert(cert)
}
_, err = certs[0].Verify(opts)
return err
}

20
vendor/github.com/lib/pq/ssl_permissions.go generated vendored Normal file
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@ -0,0 +1,20 @@
// +build !windows
package pq
import "os"
// sslKeyPermissions checks the permissions on user-supplied ssl key files.
// The key file should have very little access.
//
// libpq does not check key file permissions on Windows.
func sslKeyPermissions(sslkey string) error {
info, err := os.Stat(sslkey)
if err != nil {
return err
}
if info.Mode().Perm()&0077 != 0 {
return ErrSSLKeyHasWorldPermissions
}
return nil
}

9
vendor/github.com/lib/pq/ssl_windows.go generated vendored Normal file
View File

@ -0,0 +1,9 @@
// +build windows
package pq
// sslKeyPermissions checks the permissions on user-supplied ssl key files.
// The key file should have very little access.
//
// libpq does not check key file permissions on Windows.
func sslKeyPermissions(string) error { return nil }

76
vendor/github.com/lib/pq/url.go generated vendored Normal file
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@ -0,0 +1,76 @@
package pq
import (
"fmt"
"net"
nurl "net/url"
"sort"
"strings"
)
// ParseURL no longer needs to be used by clients of this library since supplying a URL as a
// connection string to sql.Open() is now supported:
//
// sql.Open("postgres", "postgres://bob:secret@1.2.3.4:5432/mydb?sslmode=verify-full")
//
// It remains exported here for backwards-compatibility.
//
// ParseURL converts a url to a connection string for driver.Open.
// Example:
//
// "postgres://bob:secret@1.2.3.4:5432/mydb?sslmode=verify-full"
//
// converts to:
//
// "user=bob password=secret host=1.2.3.4 port=5432 dbname=mydb sslmode=verify-full"
//
// A minimal example:
//
// "postgres://"
//
// This will be blank, causing driver.Open to use all of the defaults
func ParseURL(url string) (string, error) {
u, err := nurl.Parse(url)
if err != nil {
return "", err
}
if u.Scheme != "postgres" && u.Scheme != "postgresql" {
return "", fmt.Errorf("invalid connection protocol: %s", u.Scheme)
}
var kvs []string
escaper := strings.NewReplacer(` `, `\ `, `'`, `\'`, `\`, `\\`)
accrue := func(k, v string) {
if v != "" {
kvs = append(kvs, k+"="+escaper.Replace(v))
}
}
if u.User != nil {
v := u.User.Username()
accrue("user", v)
v, _ = u.User.Password()
accrue("password", v)
}
if host, port, err := net.SplitHostPort(u.Host); err != nil {
accrue("host", u.Host)
} else {
accrue("host", host)
accrue("port", port)
}
if u.Path != "" {
accrue("dbname", u.Path[1:])
}
q := u.Query()
for k := range q {
accrue(k, q.Get(k))
}
sort.Strings(kvs) // Makes testing easier (not a performance concern)
return strings.Join(kvs, " "), nil
}

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