hook

func FixedError ¶

func FixedError(err error) db.Hook

FixedError is a hook returning a fixed error.

func If ¶

func If(hk db.Hook, cond Condition) db.Hook

If executes the given hook under condition.

hook.If(ComputeAverage, And(HasFields(...), HasAddedFields(...)))

func On ¶

func On(hk db.Hook, op db.Op) db.Hook

On executes the given hook only for the given operation.

hook.On(Log, db.Delete|db.Create)

func Reject ¶

func Reject(op db.Op) db.Hook

Reject returns a hook that rejects all operations that match op.

func (T) Hooks() []db.Hook {
	return []db.Hook{
		Reject(db.Delete|db.Update),
	}
}

func Unless ¶

func Unless(hk db.Hook, op db.Op) db.Hook

Unless skips the given hook only for the given operation.

hook.Unless(Log, db.Update|db.UpdateOne)