if i, ok := value.(BeforeUpdateInterface); ok {
					called = true
					db.AddError(i.BeforeUpdate(tx))
				}
			}

			return called
		})
	}
}

// Update update hook
func Update(config *Config) func(db *gorm.DB) {
	supportReturning := utils.Contains(config.UpdateClauses, "RETURNING")

	return func(db *gorm.DB) {
		if db.Error != nil {
			return
		}

		switch reflectValue.Kind() {
		case reflect.Slice, reflect.Array:
			var (
				elem        reflect.Value
				isArrayKind = reflectValue.Kind() == reflect.Array
			)

			if !update || reflectValue.Len() == 0 {
				update = false
				if isArrayKind {
					db.Statement.ReflectValue.Set(reflect.Zero(reflectValue.Type()))
				} else {

}

func (cs *callbacks) Create() *processor {
	return cs.processors["create"]
}

func (cs *callbacks) Query() *processor {
	return cs.processors["query"]
}

func (cs *callbacks) Update() *processor {
	return cs.processors["update"]
}

func (cs *callbacks) Delete() *processor {
	return cs.processors["delete"]
}

func (cs *callbacks) Row() *processor {
	return cs.processors["row"]
}

			SQL:           "create table users (name, age, height, actived, bytes, create_at, update_at, deleted_at, email, role, pass) values (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
			NumericRegexp: nil,
			Vars:          []interface{}{"jinzhu", 1, 999.99, true, []byte("12345"), tt, &tt, nil, "w@g.\"com", myrole, pwd},

	"gorm.io/gorm/utils"
)

// Model specify the model you would like to run db operations
//
//	// update all users's name to `hello`
//	db.Model(&User{}).Update("name", "hello")
//	// if user's primary key is non-blank, will use it as condition, then will only update that user's name to `hello`
//	db.Model(&user).Update("name", "hello")
func (db *DB) Model(value interface{}) (tx *DB) {
	tx = db.getInstance()
	tx.Statement.Model = value

	default:
		var (
			selectColumns, restricted = stmt.SelectAndOmitColumns(true, false)
			_, updateTrackTime        = stmt.Get("gorm:update_track_time")
			isZero                    bool
		)
		stmt.Settings.Delete("gorm:update_track_time")

		values = clause.Values{Columns: make([]clause.Column, 0, len(stmt.Schema.DBNames))}

		for _, db := range stmt.Schema.DBNames {

	}

	if user.CreatedAt.IsZero() {
		t.Errorf("user's created at should be not zero")
	}

	if user.UpdatedAt.IsZero() {
		t.Errorf("user's updated at should be not zero")
	}

	var newUser User
	if err := DB.Where("id = ?", user.ID).First(&newUser).Error; err != nil {
		t.Fatalf("errors happened when query: %v", err)
	} else {
		CheckUser(t, newUser, user)
	}

	if err != nil {
		t.Errorf("AutoMigrate err:%v", err)
	}

	// delete sequence
	err = DB.Table("events").AutoMigrate(&Event{})
	if err != nil {
		t.Errorf("AutoMigrate err:%v", err)
	}

	// update sequence
	err = DB.Table("events").AutoMigrate(&Event1{})
	if err != nil {
		t.Errorf("AutoMigrate err:%v", err)
	}
	err = DB.Table("events").AutoMigrate(&Event2{})
	if err != nil {

}

func TestTableWithAllFields(t *testing.T) {
	dryDB := DB.Session(&gorm.Session{DryRun: true, QueryFields: true})
	userQuery := "SELECT .*user.*id.*user.*created_at.*user.*updated_at.*user.*deleted_at.*user.*name.*user.*age" +
		".*user.*birthday.*user.*company_id.*user.*manager_id.*user.*active.* "

	r := dryDB.Table("`user`").Find(&User{}).Statement

	}
}

func TestScanNullValue(t *testing.T) {
	user := GetUser("scan_null_value", Config{})
	DB.Create(&user)

	if err := DB.Model(&user).Update("age", nil).Error; err != nil {
		t.Fatalf("failed to update column age for struct, got error %v", err)
	}

	var result User
	if err := DB.First(&result, "id = ?", user.ID).Error; err != nil {