type Toy struct {
			ID    int
			Name  string
			RefId int
			Type  string
		}

		type Cat struct {
			ID   int
			Name string
			Toy  Toy `gorm:"polymorphic:Owner;polymorphicType:Type;polymorphicId:RefId"`
		}

		s, err := schema.Parse(&Cat{}, &sync.Map{}, schema.NamingStrategy{})
		if err != nil {
			t.Fatalf("Failed to parse schema, got error %v", err)
		}

}

// hasPolymorphicRelation check if has polymorphic relation
// 1. `POLYMORPHIC` tag
// 2. `POLYMORPHICTYPE` and `POLYMORPHICID` tag
func hasPolymorphicRelation(tagSettings map[string]string) bool {
	if _, ok := tagSettings["POLYMORPHIC"]; ok {
		return true
	}

	_, hasType := tagSettings["POLYMORPHICTYPE"]
	_, hasId := tagSettings["POLYMORPHICID"]

	return hasType && hasId
}