gorm/clause/update.go

39 lines
731 B
Go

package clause
type Update struct {
Modifier string
Table Table
}
// Name update clause name
func (update Update) Name() string {
return "UPDATE"
}
// Build build update clause
func (update Update) Build(builder Builder) {
if update.Modifier != "" {
builder.Write(update.Modifier)
builder.WriteByte(' ')
}
if update.Table.Name == "" {
builder.WriteQuoted(currentTable)
} else {
builder.WriteQuoted(update.Table)
}
}
// MergeClause merge update clause
func (update Update) MergeClause(clause *Clause) {
if v, ok := clause.Expression.(Update); ok {
if update.Modifier == "" {
update.Modifier = v.Modifier
}
if update.Table.Name == "" {
update.Table = v.Table
}
}
clause.Expression = update
}