forked from vikunja/vikunja
47 lines
893 B
Go
47 lines
893 B
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"
|
|
)
|
|
|
|
// Update creates an update Builder
|
|
func Update(updates ...Eq) *Builder {
|
|
builder := &Builder{cond: NewCond()}
|
|
return builder.Update(updates...)
|
|
}
|
|
|
|
func (b *Builder) updateWriteTo(w Writer) error {
|
|
if len(b.from) <= 0 {
|
|
return ErrNoTableName
|
|
}
|
|
if len(b.updates) <= 0 {
|
|
return ErrNoColumnToUpdate
|
|
}
|
|
|
|
if _, err := fmt.Fprintf(w, "UPDATE %s SET ", b.from); err != nil {
|
|
return err
|
|
}
|
|
|
|
for i, s := range b.updates {
|
|
if err := s.opWriteTo(",", w); err != nil {
|
|
return err
|
|
}
|
|
|
|
if i != len(b.updates)-1 {
|
|
if _, err := fmt.Fprint(w, ","); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
|
|
if _, err := fmt.Fprint(w, " WHERE "); err != nil {
|
|
return err
|
|
}
|
|
|
|
return b.cond.WriteTo(w)
|
|
}
|