96 lines
2 KiB
Go
96 lines
2 KiB
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"
|
|
|
|
// Incr implements a type used by Eq
|
|
type Incr int
|
|
|
|
// Decr implements a type used by Eq
|
|
type Decr int
|
|
|
|
// Eq defines equals conditions
|
|
type Eq map[string]interface{}
|
|
|
|
var _ Cond = Eq{}
|
|
|
|
func (eq Eq) opWriteTo(op string, w Writer) error {
|
|
var i = 0
|
|
for k, v := range eq {
|
|
switch v.(type) {
|
|
case []int, []int64, []string, []int32, []int16, []int8, []uint, []uint64, []uint32, []uint16, []interface{}:
|
|
if err := In(k, v).WriteTo(w); err != nil {
|
|
return err
|
|
}
|
|
case expr:
|
|
if _, err := fmt.Fprintf(w, "%s=(", k); err != nil {
|
|
return err
|
|
}
|
|
|
|
if err := v.(expr).WriteTo(w); err != nil {
|
|
return err
|
|
}
|
|
|
|
if _, err := fmt.Fprintf(w, ")"); err != nil {
|
|
return err
|
|
}
|
|
case *Builder:
|
|
if _, err := fmt.Fprintf(w, "%s=(", k); err != nil {
|
|
return err
|
|
}
|
|
|
|
if err := v.(*Builder).WriteTo(w); err != nil {
|
|
return err
|
|
}
|
|
|
|
if _, err := fmt.Fprintf(w, ")"); err != nil {
|
|
return err
|
|
}
|
|
case Incr:
|
|
if _, err := fmt.Fprintf(w, "%s=%s+?", k, k); err != nil {
|
|
return err
|
|
}
|
|
w.Append(int(v.(Incr)))
|
|
case Decr:
|
|
if _, err := fmt.Fprintf(w, "%s=%s-?", k, k); err != nil {
|
|
return err
|
|
}
|
|
w.Append(int(v.(Decr)))
|
|
default:
|
|
if _, err := fmt.Fprintf(w, "%s=?", k); err != nil {
|
|
return err
|
|
}
|
|
w.Append(v)
|
|
}
|
|
if i != len(eq)-1 {
|
|
if _, err := fmt.Fprint(w, op); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
i = i + 1
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// WriteTo writes SQL to Writer
|
|
func (eq Eq) WriteTo(w Writer) error {
|
|
return eq.opWriteTo(" AND ", w)
|
|
}
|
|
|
|
// And implements And with other conditions
|
|
func (eq Eq) And(conds ...Cond) Cond {
|
|
return And(eq, And(conds...))
|
|
}
|
|
|
|
// Or implements Or with other conditions
|
|
func (eq Eq) Or(conds ...Cond) Cond {
|
|
return Or(eq, Or(conds...))
|
|
}
|
|
|
|
// IsValid tests if this Eq is valid
|
|
func (eq Eq) IsValid() bool {
|
|
return len(eq) > 0
|
|
}
|