}

type Category struct {
	ID    uuid.UUID `gorm:"primary_key;type:uuid;default:uuid_generate_v4();"`
	Title string
	Posts []*Post `gorm:"Many2Many:post_categories"`
}

func TestMany2ManyWithDefaultValueUUID(t *testing.T) {
	if DB.Dialector.Name() != "postgres" {
		t.Skip()
	}

	if err := DB.Exec(`create extension if not exists "uuid-ossp"`).Error; err != nil {