callMethod(db, func(value interface{}, tx *gorm.DB) (called bool) {
			if db.Statement.Schema.AfterUpdate {
				if i, ok := value.(AfterUpdateInterface); ok {
					called = true
					db.AddError(i.AfterUpdate(tx))
				}
			}

			if db.Statement.Schema.AfterSave {
				if i, ok := value.(AfterSaveInterface); ok {

}

type AfterUpdateInterface interface {
	AfterUpdate(*gorm.DB) error
}

type BeforeSaveInterface interface {
	BeforeSave(*gorm.DB) error
}

type AfterSaveInterface interface {
	AfterSave(*gorm.DB) error
}

type BeforeDeleteInterface interface {
	BeforeDelete(*gorm.DB) error
}

type AfterDeleteInterface interface {
	AfterDelete(*gorm.DB) error
}

type AfterFindInterface interface {

		if !reflect.Indirect(reflect.ValueOf(user)).FieldByName(str).Interface().(bool) {
			t.Errorf("%v should be true", str)
		}
	}

	for _, str := range []string{"BeforeCreate", "BeforeUpdate", "AfterUpdate", "AfterSave", "BeforeDelete", "AfterDelete", "AfterFind"} {
		if reflect.Indirect(reflect.ValueOf(user)).FieldByName(str).Interface().(bool) {
			t.Errorf("%v should be false", str)
		}
	}

		callMethod(db, func(value interface{}, tx *gorm.DB) (called bool) {
			if db.Statement.Schema.AfterCreate {
				if i, ok := value.(AfterCreateInterface); ok {
					called = true
					db.AddError(i.AfterCreate(tx))
				}
			}

			if db.Statement.Schema.AfterSave {
				if i, ok := value.(AfterSaveInterface); ok {

	callbackTypeAfterCreate  callbackType = "AfterCreate"
	callbackTypeAfterUpdate  callbackType = "AfterUpdate"
	callbackTypeBeforeSave   callbackType = "BeforeSave"
	callbackTypeAfterSave    callbackType = "AfterSave"
	callbackTypeBeforeDelete callbackType = "BeforeDelete"
	callbackTypeAfterDelete  callbackType = "AfterDelete"
	callbackTypeAfterFind    callbackType = "AfterFind"
)

// ErrUnsupportedDataType unsupported data type

}

func (s *Product) AfterUpdate(tx *gorm.DB) (err error) {
	s.AfterUpdateCallTimes = s.AfterUpdateCallTimes + 1
	return
}

func (s *Product) AfterSave(tx *gorm.DB) (err error) {
	if s.Code == "after_save_error" {
		err = errors.New("can't save")
	}
	s.AfterSaveCallTimes = s.AfterSaveCallTimes + 1
	return
}