Lightweight and fast SQL builder for Go language
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// Copyright 2019 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
type condIf struct {
condition bool
condTrue Cond
condFalse Cond
}
var _ Cond = condIf{}
// If returns Cond via condition
func If(condition bool, condTrue Cond, condFalse ...Cond) Cond {
var c = condIf{
condition: condition,
condTrue: condTrue,
}
if len(condFalse) > 0 {
c.condFalse = condFalse[0]
}
return c
}
func (condIf condIf) WriteTo(w Writer) error {
if condIf.condition {
return condIf.condTrue.WriteTo(w)
} else if condIf.condFalse != nil {
return condIf.condFalse.WriteTo(w)
}
return nil
}
func (condIf condIf) And(conds ...Cond) Cond {
return And(condIf, And(conds...))
}
func (condIf condIf) Or(conds ...Cond) Cond {
return Or(condIf, Or(conds...))
}
func (condIf condIf) IsValid() bool {
if condIf.condition {
return condIf.condTrue != nil
}
return condIf.condFalse != nil
}