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)
		}
	}

}

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

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

func (s *Product) AfterCreate(tx *gorm.DB) (err error) {

}

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

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

type AfterFindInterface interface {
	AfterFind(*gorm.DB) error

	callbackTypeAfterSave    callbackType = "AfterSave"
	callbackTypeBeforeDelete callbackType = "BeforeDelete"
	callbackTypeAfterDelete  callbackType = "AfterDelete"
	callbackTypeAfterFind    callbackType = "AfterFind"
)

// ErrUnsupportedDataType unsupported data type
var ErrUnsupportedDataType = errors.New("unsupported data type")

type Schema struct {
	Name                      string
	ModelType                 reflect.Type

		db.Statement.Clauses["FROM"] = fromClause
	}
	if db.Error == nil && db.Statement.Schema != nil && !db.Statement.SkipHooks && db.Statement.Schema.AfterFind && db.RowsAffected > 0 {
		callMethod(db, func(value interface{}, tx *gorm.DB) bool {
			if i, ok := value.(AfterFindInterface); ok {
				db.AddError(i.AfterFind(tx))
				return true
			}
			return false
		})
	}