parent := Parent{}
	DB.Create(&parent)

	child := Child{ParentID: &parent.ID, Parent: &parent, Name: "HasManyCircularReference"}
	child1 := Child{ParentID: &parent.ID, Parent: &parent, Name: "HasManyCircularReference1"}

	parent.Children = []*Child{&child, &child1}
	DB.Save(&parent)

	var children []*Child
	DB.Where("parent_id = ?", parent.ID).Find(&children)

}

type Order struct {
	gorm.Model
	Num      string
	Coupon   *Coupon
	CouponID string
}

type Parent struct {
	gorm.Model
	FavChildID uint
	FavChild   *Child
	Children   []*Child
}

type Child struct {
	gorm.Model
	Name     string
	ParentID *uint
	Parent   *Parent

	}

	return
}

func RunMigrations() {
	var err error
	allModels := []interface{}{&User{}, &Account{}, &Pet{}, &Company{}, &Toy{}, &Language{}, &Coupon{}, &CouponProduct{}, &Order{}, &Parent{}, &Child{}, &Tools{}}
	rand.Seed(time.Now().UnixNano())
	rand.Shuffle(len(allModels), func(i, j int) { allModels[i], allModels[j] = allModels[j], allModels[i] })

	DB.Migrator().DropTable("user_friends", "user_speaks")