type CreateClausesInterface interface {
	CreateClauses(*Field) []clause.Interface
}

// QueryClausesInterface query clauses interface
type QueryClausesInterface interface {
	QueryClauses(*Field) []clause.Interface
}

// UpdateClausesInterface update clauses interface
type UpdateClausesInterface interface {
	UpdateClauses(*Field) []clause.Interface
}

	enableTransaction := func(db *gorm.DB) bool {
		return !db.SkipDefaultTransaction
	}

	if len(config.CreateClauses) == 0 {
		config.CreateClauses = createClauses
	}
	if len(config.QueryClauses) == 0 {
		config.QueryClauses = queryClauses
	}
	if len(config.DeleteClauses) == 0 {
		config.DeleteClauses = deleteClauses
	}
	if len(config.UpdateClauses) == 0 {
		config.UpdateClauses = updateClauses
	}

	if string(b) == "null" {
		n.Valid = false
		return nil
	}
	err := json.Unmarshal(b, &n.Time)
	if err == nil {
		n.Valid = true
	}
	return err
}

func (DeletedAt) QueryClauses(f *schema.Field) []clause.Interface {
	return []clause.Interface{SoftDeleteQueryClause{Field: f, ZeroValue: parseZeroValueTag(f)}}
}

func parseZeroValueTag(f *schema.Field) sql.NullString {