switch v.Kind() {
	case reflect.Slice, reflect.Array:
		loaded = true
		for i := 0; i < v.Len(); i++ {
			if !loadOrStoreVisitMap(visitMap, v.Index(i)) {
				loaded = false
			}
		}
	case reflect.Struct, reflect.Interface:
		if v.CanAddr() {
			p := v.Addr()
			if _, ok := (*visitMap)[p]; ok {
				return true
			}
			(*visitMap)[p] = true
		}
	}

	return

package tests_test

import (
	"testing"

	. "gorm.io/gorm/utils/tests"
)

type Hamster struct {
	Id           int
	Name         string
	PreferredToy Toy `gorm:"polymorphic:Owner;polymorphicValue:hamster_preferred"`
	OtherToy     Toy `gorm:"polymorphic:Owner;polymorphicValue:hamster_other"`
}

func TestNamedPolymorphic(t *testing.T) {
	DB.Migrator().DropTable(&Hamster{})
	DB.AutoMigrate(&Hamster{})

			t.Errorf("no error should happen when assign value to field %v, but got %v", k, err)
		}
	}
	checkField(t, userSchema, reflectValue, newValues2)
}

type UserWithPermissionControl struct {
	ID    uint
	Name  string `gorm:"-"`
	Name2 string `gorm:"->"`
	Name3 string `gorm:"<-"`
	Name4 string `gorm:"<-:create"`
	Name5 string `gorm:"<-:update"`
	Name6 string `gorm:"<-:create,update"`

		t.Errorf("should returns record not found error, but got %v", err)
	}
}

func TestDeleteWithTable(t *testing.T) {
	type UserWithDelete struct {
		gorm.Model
		Name string
	}

	DB.Table("deleted_users").Migrator().DropTable(UserWithDelete{})
	DB.Table("deleted_users").AutoMigrate(UserWithDelete{})

	user := UserWithDelete{Name: "delete1"}