Name4        string `gorm:"uniqueIndex"`
	Name5        int64  `gorm:"index:,class:FULLTEXT,comment:hello \\, world,where:age > 10"`
	Name6        int64  `gorm:"index:profile,comment:hello \\, world,where:age > 10"`
	Age          int64  `gorm:"index:profile,expression:ABS(age),option:WITH PARSER parser_name"`
	OID          int64  `gorm:"index:idx_id;index:idx_oid,unique"`

)

// 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
	return
}

		t.Fatalf("Failed to create 'uuid-ossp' extension, but got error %v", err)
	}

	DB.Migrator().DropTable(&Post{}, &Category{}, "post_categories")
	DB.AutoMigrate(&Post{}, &Category{})

	post := Post{
		Title: "Hello World",
		Categories: []*Category{
			{Title: "Coding"},
			{Title: "Golang"},
		},
	}

	if err := DB.Create(&post).Error; err != nil {
		t.Errorf("Failed, got error: %v", err)
	}
}

		*es = EncryptedString(bytes.TrimPrefix(value, []byte("hello")))
	case string:
		*es = EncryptedString(strings.TrimPrefix(value, "hello"))
	default:
		return fmt.Errorf("unsupported data %#v", dbValue)
	}
	return nil
}

func (es EncryptedString) Value(ctx context.Context, field *schema.Field, dst reflect.Value, fieldValue interface{}) (interface{}, error) {
	return "hello" + string(es), nil
}

type CustomSerializer struct {

	}

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

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

	harumph := Harumph{Email: "hello@gorm.io"}
	if err := DB.Create(&harumph).Error; err != nil {
		t.Fatalf("Failed to create data with default value, got error: %v", err)

	}

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

	hnPost := HNPost{Content: Content{Content: "hello world"}}

	if err := DB.Create(&hnPost).Error; err != nil {
		t.Errorf("Failed to create got error %v", err)
	}
}

func TestEmbeddedRelations(t *testing.T) {
	type EmbUser struct {
		gorm.Model

	}

	DB.Model(&User{}).Count(&count2)
	if count1 != count2 {
		t.Errorf("No user should not be deleted by invalid SQL")
	}
}

func TestSetAndGet(t *testing.T) {
	if value, ok := DB.Set("hello", "world").Get("hello"); !ok {
		t.Errorf("Should be able to get setting after set")
	} else if value.(string) != "world" {
		t.Errorf("Set value should not be changed")
	}

	if _, ok := DB.Get("non_existing"); ok {

	}

	type ColumnStruct2 struct {
		ID    int    `gorm:"primarykey;default:auto_random()"`
		Name  string `gorm:"size:100"`
		Code  string `gorm:"unique;comment:my code2;default:hello"`
		Code2 string `gorm:"comment:my code2;default:hello"`
	}

	if err := DB.Table("column_structs").Migrator().AlterColumn(&ColumnStruct{}, "Name"); err != nil {
		t.Fatalf("no error should happened when alter column, but got %v", err)
	}