Level1   Level1
			Level3ID uint
		}
		Level3 struct {
			ID     uint
			Name   string
			Level2 Level2
		}
	)
	DB.Migrator().DropTable(&Level3{}, &Level2{}, &Level1{})
	if err := DB.AutoMigrate(&Level3{}, &Level2{}, &Level1{}); err != nil {
		t.Error(err)
	}

	want := Level3{Level2: Level2{Level1: Level1{Value: "value"}}}
	if err := DB.Create(&want).Error; err != nil {
		t.Error(err)
	}

type CompanyNew struct {
	ID   int
	Name int
}

func TestAlterColumnDataType(t *testing.T) {
	DB.AutoMigrate(Company{})

	if err := DB.Table("companies").Migrator().AlterColumn(CompanyNew{}, "name"); err != nil {
		t.Fatalf("failed to alter column from string to int, got error %v", err)
	}

	DB.AutoMigrate(Company{})

	if DB.Dialector.Name() != "gaussdb" {
		t.Skip()
	}
	DB.Migrator().DropTable(&Company{})
	DB.AutoMigrate(Company{})
	if err := DB.Table("companies").Migrator().AlterColumn(CompanyNew{}, "name"); err != nil {
		t.Fatalf("failed to alter column from string to int, got error %v", err)
	}

	DB.AutoMigrate(Company{})

}

func TestRunCallbacks(t *testing.T) {
	DB.Migrator().DropTable(&Product{})
	DB.AutoMigrate(&Product{})

	p := Product{Code: "unique_code", Price: 100}
	DB.Save(&p)

	if !reflect.DeepEqual(p.GetCallTimes(), []int64{1, 1, 0, 1, 1, 0, 0, 0, 0}) {

	if supported, found := dialectors[db.Dialector.Name()]; !(found && supported) {
		return
	}

	DB.Migrator().DropTable(&City{})

	if err = db.AutoMigrate(&City{}); err != nil {
		t.Fatalf("failed to migrate cities table, got error: %v", err)
	}

	err = db.Create(&City{Name: "Kabul"}).Error
	if err != nil {
		t.Fatalf("failed to create record: %v", err)
	}

		gorm.Model
		Number   string
		MemberID uint `gorm:"not null"`
	}

	type Member struct {
		gorm.Model
		Profiles []Profile
	}

	DB.Migrator().DropTable(&Member{}, &Profile{})

	if err := DB.AutoMigrate(&Member{}, &Profile{}); err != nil {
		t.Fatalf("Failed to migrate, got error: %v", err)
	}

	member := &Member{
		Profiles: []Profile{{
			Number: "1",
		}, {
			Number: "2",
		}},
	}

		ID   int64      `gorm:"column:mapped_id; primary_key:yes"`
		Name string     `gorm:"column:mapped_name"`
		Date *time.Time `gorm:"column:mapped_time"`
	}

	DB.Migrator().DropTable(&CustomizeColumn{})
	DB.AutoMigrate(&CustomizeColumn{})

	expected := "foo"
	now := time.Now()
	cc := CustomizeColumn{ID: 666, Name: expected, Date: &now}

	if count := DB.Create(&cc).RowsAffected; count != 1 {

		}

		DB.Migrator().DropTable(&CustomizeUser{})
		DB.Migrator().DropTable(&CustomizeAccount{})

		if err := DB.AutoMigrate(&CustomizeUser{}); err != nil {
			t.Fatalf("failed to migrate, got error: %v", err)
		}
		if err := DB.AutoMigrate(&CustomizeAccount{}); err != nil {
			t.Fatalf("failed to migrate, got error: %v", err)
		}

		number := "number-has-one-associations"

		stmt.Schema.LookUpField("ID").Unique = true
		// postgers only allow unique constraint matching given keys
	}

	DB.Migrator().DropTable(&Blog{}, &Tag{}, "blog_tags", "locale_blog_tags", "shared_blog_tags")
	if err := DB.AutoMigrate(&Blog{}, &Tag{}); err != nil {
		t.Fatalf("Failed to auto migrate, got error: %v", err)
	}

	blog := Blog{
		Locale:  "ZH",
		Subject: "subject",
		Body:    "body",
		Tags: []Tag{

}

func TestWithResultIncludesError(t *testing.T) {
	db, err := gorm.Open(sqlite.Open("file::memory:?cache=shared"), &gorm.Config{})
	if err != nil {
		t.Fatalf("open db failed: %v", err)
	}
	if err := db.AutoMigrate(&withResultUser{}); err != nil {
		t.Fatalf("migrate failed: %v", err)
	}

	ctx := context.Background()

	u := withResultUser{Name: "with-result-ok"}
	r := gorm.WithResult()