ipbl/vendor/xorm.io/builder/expr.go
Paul Lecuq 3fd0689366
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2022-06-05 23:07:32 +02:00

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Go

// Copyright 2016 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 builder
import "fmt"
// Expression represetns a SQL express with arguments
type Expression struct {
sql string
args []interface{}
}
var _ Cond = &Expression{}
// Expr generate customerize SQL
func Expr(sql string, args ...interface{}) Cond {
return &Expression{sql, args}
}
func (expr *Expression) Content() string {
return expr.sql
}
func (expr *Expression) Args() []interface{} {
return expr.args
}
// OpWriteTo implements UpdateCond interface
func (expr *Expression) OpWriteTo(op string, w Writer) error {
return expr.WriteTo(w)
}
// WriteTo implements Cond interface
func (expr *Expression) WriteTo(w Writer) error {
if _, err := fmt.Fprint(w, expr.sql); err != nil {
return err
}
w.Append(expr.args...)
return nil
}
// And implements Cond interface
func (expr *Expression) And(conds ...Cond) Cond {
return And(expr, And(conds...))
}
// Or implements Cond interface
func (expr *Expression) Or(conds ...Cond) Cond {
return Or(expr, Or(conds...))
}
// IsValid implements Cond interface
func (expr *Expression) IsValid() bool {
return len(expr.sql) > 0
}