vmail/vendor/xorm.io/xorm/session_convert.go
2021-04-04 21:56:48 +02:00

552 lines
17 KiB
Go
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

// Copyright 2017 The Xorm Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package xorm
import (
"database/sql"
"errors"
"fmt"
"reflect"
"strconv"
"strings"
"time"
"xorm.io/xorm/convert"
"xorm.io/xorm/internal/json"
"xorm.io/xorm/internal/utils"
"xorm.io/xorm/schemas"
)
func (session *Session) str2Time(col *schemas.Column, data string) (outTime time.Time, outErr error) {
sdata := strings.TrimSpace(data)
var x time.Time
var err error
var parseLoc = session.engine.DatabaseTZ
if col.TimeZone != nil {
parseLoc = col.TimeZone
}
if sdata == utils.ZeroTime0 || sdata == utils.ZeroTime1 {
} else if !strings.ContainsAny(sdata, "- :") { // !nashtsai! has only found that mymysql driver is using this for time type column
// time stamp
sd, err := strconv.ParseInt(sdata, 10, 64)
if err == nil {
x = time.Unix(sd, 0)
//session.engine.logger.Debugf("time(0) key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
} else {
//session.engine.logger.Debugf("time(0) err key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
}
} else if len(sdata) > 19 && strings.Contains(sdata, "-") {
x, err = time.ParseInLocation(time.RFC3339Nano, sdata, parseLoc)
session.engine.logger.Debugf("time(1) key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
if err != nil {
x, err = time.ParseInLocation("2006-01-02 15:04:05.999999999", sdata, parseLoc)
//session.engine.logger.Debugf("time(2) key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
}
if err != nil {
x, err = time.ParseInLocation("2006-01-02 15:04:05.9999999 Z07:00", sdata, parseLoc)
//session.engine.logger.Debugf("time(3) key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
}
} else if len(sdata) == 19 && strings.Contains(sdata, "-") {
x, err = time.ParseInLocation("2006-01-02 15:04:05", sdata, parseLoc)
//session.engine.logger.Debugf("time(4) key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
} else if len(sdata) == 10 && sdata[4] == '-' && sdata[7] == '-' {
x, err = time.ParseInLocation("2006-01-02", sdata, parseLoc)
//session.engine.logger.Debugf("time(5) key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
} else if col.SQLType.Name == schemas.Time {
if strings.Contains(sdata, " ") {
ssd := strings.Split(sdata, " ")
sdata = ssd[1]
}
sdata = strings.TrimSpace(sdata)
if session.engine.dialect.URI().DBType == schemas.MYSQL && len(sdata) > 8 {
sdata = sdata[len(sdata)-8:]
}
st := fmt.Sprintf("2006-01-02 %v", sdata)
x, err = time.ParseInLocation("2006-01-02 15:04:05", st, parseLoc)
//session.engine.logger.Debugf("time(6) key[%v]: %+v | sdata: [%v]\n", col.FieldName, x, sdata)
} else {
outErr = fmt.Errorf("unsupported time format %v", sdata)
return
}
if err != nil {
outErr = fmt.Errorf("unsupported time format %v: %v", sdata, err)
return
}
outTime = x.In(session.engine.TZLocation)
return
}
func (session *Session) byte2Time(col *schemas.Column, data []byte) (outTime time.Time, outErr error) {
return session.str2Time(col, string(data))
}
// convert a db data([]byte) to a field value
func (session *Session) bytes2Value(col *schemas.Column, fieldValue *reflect.Value, data []byte) error {
if structConvert, ok := fieldValue.Addr().Interface().(convert.Conversion); ok {
return structConvert.FromDB(data)
}
if structConvert, ok := fieldValue.Interface().(convert.Conversion); ok {
return structConvert.FromDB(data)
}
var v interface{}
key := col.Name
fieldType := fieldValue.Type()
switch fieldType.Kind() {
case reflect.Complex64, reflect.Complex128:
x := reflect.New(fieldType)
if len(data) > 0 {
err := json.DefaultJSONHandler.Unmarshal(data, x.Interface())
if err != nil {
return err
}
fieldValue.Set(x.Elem())
}
case reflect.Slice, reflect.Array, reflect.Map:
v = data
t := fieldType.Elem()
k := t.Kind()
if col.SQLType.IsText() {
x := reflect.New(fieldType)
if len(data) > 0 {
err := json.DefaultJSONHandler.Unmarshal(data, x.Interface())
if err != nil {
return err
}
fieldValue.Set(x.Elem())
}
} else if col.SQLType.IsBlob() {
if k == reflect.Uint8 {
fieldValue.Set(reflect.ValueOf(v))
} else {
x := reflect.New(fieldType)
if len(data) > 0 {
err := json.DefaultJSONHandler.Unmarshal(data, x.Interface())
if err != nil {
return err
}
fieldValue.Set(x.Elem())
}
}
} else {
return ErrUnSupportedType
}
case reflect.String:
fieldValue.SetString(string(data))
case reflect.Bool:
v, err := asBool(data)
if err != nil {
return fmt.Errorf("arg %v as bool: %s", key, err.Error())
}
fieldValue.Set(reflect.ValueOf(v))
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
sdata := string(data)
var x int64
var err error
// for mysql, when use bit, it returned \x01
if col.SQLType.Name == schemas.Bit &&
session.engine.dialect.URI().DBType == schemas.MYSQL { // !nashtsai! TODO dialect needs to provide conversion interface API
if len(data) == 1 {
x = int64(data[0])
} else {
x = 0
}
} else if strings.HasPrefix(sdata, "0x") {
x, err = strconv.ParseInt(sdata, 16, 64)
} else if strings.HasPrefix(sdata, "0") {
x, err = strconv.ParseInt(sdata, 8, 64)
} else if strings.EqualFold(sdata, "true") {
x = 1
} else if strings.EqualFold(sdata, "false") {
x = 0
} else {
if col.SQLType.Name == schemas.DateTime {
if len(sdata) == 20 {
t, err := time.Parse("2006-01-02T15:04:05Z", sdata)
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
x = t.Unix()
} else if len(sdata) == 19 {
var parseFormat = "2006-01-02 15:04:05"
if sdata[10] == 'T' {
parseFormat = "2006-01-02T15:04:05"
}
t, err := time.Parse(parseFormat, sdata)
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
x = t.Unix()
} else {
x, err = strconv.ParseInt(sdata, 10, 64)
}
} else {
x, err = strconv.ParseInt(sdata, 10, 64)
}
}
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
fieldValue.SetInt(x)
case reflect.Float32, reflect.Float64:
x, err := strconv.ParseFloat(string(data), 64)
if err != nil {
return fmt.Errorf("arg %v as float64: %s", key, err.Error())
}
fieldValue.SetFloat(x)
case reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uint:
x, err := strconv.ParseUint(string(data), 10, 64)
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
fieldValue.SetUint(x)
//Currently only support Time type
case reflect.Struct:
// !<winxxp>! 增加支持sql.Scanner接口的结构如sql.NullString
if nulVal, ok := fieldValue.Addr().Interface().(sql.Scanner); ok {
if err := nulVal.Scan(data); err != nil {
return fmt.Errorf("sql.Scan(%v) failed: %s ", data, err.Error())
}
} else {
if fieldType.ConvertibleTo(schemas.TimeType) {
x, err := session.byte2Time(col, data)
if err != nil {
return err
}
v = x
fieldValue.Set(reflect.ValueOf(v).Convert(fieldType))
} else if session.statement.UseCascade {
table, err := session.engine.tagParser.ParseWithCache(*fieldValue)
if err != nil {
return err
}
// TODO: current only support 1 primary key
if len(table.PrimaryKeys) > 1 {
return errors.New("unsupported composited primary key cascade")
}
var pk = make(schemas.PK, len(table.PrimaryKeys))
rawValueType := table.ColumnType(table.PKColumns()[0].FieldName)
pk[0], err = str2PK(string(data), rawValueType)
if err != nil {
return err
}
if !pk.IsZero() {
// !nashtsai! TODO for hasOne relationship, it's preferred to use join query for eager fetch
// however, also need to consider adding a 'lazy' attribute to xorm tag which allow hasOne
// property to be fetched lazily
structInter := reflect.New(fieldValue.Type())
has, err := session.ID(pk).NoCascade().get(structInter.Interface())
if err != nil {
return err
}
if has {
v = structInter.Elem().Interface()
fieldValue.Set(reflect.ValueOf(v))
} else {
return errors.New("cascade obj is not exist")
}
}
}
}
case reflect.Ptr:
// !nashtsai! TODO merge duplicated codes above
//typeStr := fieldType.String()
switch fieldType.Elem().Kind() {
// case "*string":
case schemas.StringType.Kind():
x := string(data)
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*bool":
case schemas.BoolType.Kind():
d := string(data)
v, err := strconv.ParseBool(d)
if err != nil {
return fmt.Errorf("arg %v as bool: %s", key, err.Error())
}
fieldValue.Set(reflect.ValueOf(&v).Convert(fieldType))
// case "*complex64":
case schemas.Complex64Type.Kind():
var x complex64
if len(data) > 0 {
err := json.DefaultJSONHandler.Unmarshal(data, &x)
if err != nil {
return err
}
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
}
// case "*complex128":
case schemas.Complex128Type.Kind():
var x complex128
if len(data) > 0 {
err := json.DefaultJSONHandler.Unmarshal(data, &x)
if err != nil {
return err
}
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
}
// case "*float64":
case schemas.Float64Type.Kind():
x, err := strconv.ParseFloat(string(data), 64)
if err != nil {
return fmt.Errorf("arg %v as float64: %s", key, err.Error())
}
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*float32":
case schemas.Float32Type.Kind():
var x float32
x1, err := strconv.ParseFloat(string(data), 32)
if err != nil {
return fmt.Errorf("arg %v as float32: %s", key, err.Error())
}
x = float32(x1)
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*uint64":
case schemas.Uint64Type.Kind():
var x uint64
x, err := strconv.ParseUint(string(data), 10, 64)
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*uint":
case schemas.UintType.Kind():
var x uint
x1, err := strconv.ParseUint(string(data), 10, 64)
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
x = uint(x1)
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*uint32":
case schemas.Uint32Type.Kind():
var x uint32
x1, err := strconv.ParseUint(string(data), 10, 64)
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
x = uint32(x1)
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*uint8":
case schemas.Uint8Type.Kind():
var x uint8
x1, err := strconv.ParseUint(string(data), 10, 64)
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
x = uint8(x1)
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*uint16":
case schemas.Uint16Type.Kind():
var x uint16
x1, err := strconv.ParseUint(string(data), 10, 64)
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
x = uint16(x1)
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*int64":
case schemas.Int64Type.Kind():
sdata := string(data)
var x int64
var err error
// for mysql, when use bit, it returned \x01
if col.SQLType.Name == schemas.Bit &&
strings.Contains(session.engine.DriverName(), "mysql") {
if len(data) == 1 {
x = int64(data[0])
} else {
x = 0
}
} else if strings.HasPrefix(sdata, "0x") {
x, err = strconv.ParseInt(sdata, 16, 64)
} else if strings.HasPrefix(sdata, "0") {
x, err = strconv.ParseInt(sdata, 8, 64)
} else {
x, err = strconv.ParseInt(sdata, 10, 64)
}
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*int":
case schemas.IntType.Kind():
sdata := string(data)
var x int
var x1 int64
var err error
// for mysql, when use bit, it returned \x01
if col.SQLType.Name == schemas.Bit &&
strings.Contains(session.engine.DriverName(), "mysql") {
if len(data) == 1 {
x = int(data[0])
} else {
x = 0
}
} else if strings.HasPrefix(sdata, "0x") {
x1, err = strconv.ParseInt(sdata, 16, 64)
x = int(x1)
} else if strings.HasPrefix(sdata, "0") {
x1, err = strconv.ParseInt(sdata, 8, 64)
x = int(x1)
} else {
x1, err = strconv.ParseInt(sdata, 10, 64)
x = int(x1)
}
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*int32":
case schemas.Int32Type.Kind():
sdata := string(data)
var x int32
var x1 int64
var err error
// for mysql, when use bit, it returned \x01
if col.SQLType.Name == schemas.Bit &&
session.engine.dialect.URI().DBType == schemas.MYSQL {
if len(data) == 1 {
x = int32(data[0])
} else {
x = 0
}
} else if strings.HasPrefix(sdata, "0x") {
x1, err = strconv.ParseInt(sdata, 16, 64)
x = int32(x1)
} else if strings.HasPrefix(sdata, "0") {
x1, err = strconv.ParseInt(sdata, 8, 64)
x = int32(x1)
} else {
x1, err = strconv.ParseInt(sdata, 10, 64)
x = int32(x1)
}
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*int8":
case schemas.Int8Type.Kind():
sdata := string(data)
var x int8
var x1 int64
var err error
// for mysql, when use bit, it returned \x01
if col.SQLType.Name == schemas.Bit &&
strings.Contains(session.engine.DriverName(), "mysql") {
if len(data) == 1 {
x = int8(data[0])
} else {
x = 0
}
} else if strings.HasPrefix(sdata, "0x") {
x1, err = strconv.ParseInt(sdata, 16, 64)
x = int8(x1)
} else if strings.HasPrefix(sdata, "0") {
x1, err = strconv.ParseInt(sdata, 8, 64)
x = int8(x1)
} else {
x1, err = strconv.ParseInt(sdata, 10, 64)
x = int8(x1)
}
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*int16":
case schemas.Int16Type.Kind():
sdata := string(data)
var x int16
var x1 int64
var err error
// for mysql, when use bit, it returned \x01
if col.SQLType.Name == schemas.Bit &&
strings.Contains(session.engine.DriverName(), "mysql") {
if len(data) == 1 {
x = int16(data[0])
} else {
x = 0
}
} else if strings.HasPrefix(sdata, "0x") {
x1, err = strconv.ParseInt(sdata, 16, 64)
x = int16(x1)
} else if strings.HasPrefix(sdata, "0") {
x1, err = strconv.ParseInt(sdata, 8, 64)
x = int16(x1)
} else {
x1, err = strconv.ParseInt(sdata, 10, 64)
x = int16(x1)
}
if err != nil {
return fmt.Errorf("arg %v as int: %s", key, err.Error())
}
fieldValue.Set(reflect.ValueOf(&x).Convert(fieldType))
// case "*SomeStruct":
case reflect.Struct:
switch fieldType {
// case "*.time.Time":
case schemas.PtrTimeType:
x, err := session.byte2Time(col, data)
if err != nil {
return err
}
v = x
fieldValue.Set(reflect.ValueOf(&x))
default:
if session.statement.UseCascade {
structInter := reflect.New(fieldType.Elem())
table, err := session.engine.tagParser.ParseWithCache(structInter.Elem())
if err != nil {
return err
}
if len(table.PrimaryKeys) > 1 {
return errors.New("unsupported composited primary key cascade")
}
var pk = make(schemas.PK, len(table.PrimaryKeys))
rawValueType := table.ColumnType(table.PKColumns()[0].FieldName)
pk[0], err = str2PK(string(data), rawValueType)
if err != nil {
return err
}
if !pk.IsZero() {
// !nashtsai! TODO for hasOne relationship, it's preferred to use join query for eager fetch
// however, also need to consider adding a 'lazy' attribute to xorm tag which allow hasOne
// property to be fetched lazily
has, err := session.ID(pk).NoCascade().get(structInter.Interface())
if err != nil {
return err
}
if has {
v = structInter.Interface()
fieldValue.Set(reflect.ValueOf(v))
} else {
return errors.New("cascade obj is not exist")
}
}
} else {
return fmt.Errorf("unsupported struct type in Scan: %s", fieldValue.Type().String())
}
}
default:
return fmt.Errorf("unsupported type in Scan: %s", fieldValue.Type().String())
}
default:
return fmt.Errorf("unsupported type in Scan: %s", fieldValue.Type().String())
}
return nil
}