forked from mirror/gorm
39 lines
803 B
Go
39 lines
803 B
Go
|
package clause
|
||
|
|
|
||
|
|
type OnConflict struct {
|
||
|
|
Columns []Column
|
||
|
|
Where Where
|
||
|
|
DoNothing bool
|
||
|
|
DoUpdates Set
|
||
|
|
}
|
||
|
|
|
||
|
|
func (OnConflict) Name() string {
|
||
|
|
return "ON CONFLICT"
|
||
|
|
}
|
||
|
|
|
||
|
|
// Build build onConflict clause
|
||
|
|
func (onConflict OnConflict) Build(builder Builder) {
|
||
|
|
if len(onConflict.Columns) > 0 {
|
||
|
|
builder.WriteQuoted(onConflict.Columns) // FIXME columns
|
||
|
|
builder.WriteByte(' ')
|
||
|
|
}
|
||
|
|
|
||
|
|
if len(onConflict.Where.Exprs) > 0 {
|
||
|
|
builder.WriteString("WHERE ")
|
||
|
|
onConflict.Where.Build(builder)
|
||
|
|
builder.WriteByte(' ')
|
||
|
|
}
|
||
|
|
|
||
|
|
if onConflict.DoNothing {
|
||
|
|
builder.WriteString("DO NOTHING")
|
||
|
|
} else {
|
||
|
|
builder.WriteString("DO UPDATE SET ")
|
||
|
|
onConflict.DoUpdates.Build(builder)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// MergeClause merge onConflict clauses
|
||
|
|
func (onConflict OnConflict) MergeClause(clause *Clause) {
|
||
|
|
clause.Expression = onConflict
|
||
|
|
}
|