name  string
		elems []string
		elem  string
		out   bool
	}{
		{"exists", []string{"1", "2", "3"}, "1", true},
		{"not exists", []string{"1", "2", "3"}, "4", false},
	}
	for _, test := range containsTests {
		t.Run(test.name, func(t *testing.T) {
			if out := Contains(test.elems, test.elem); test.out != out {
				t.Errorf("Contains(%v, %s) want: %t, got: %t", test.elems, test.elem, test.out, out)
			}
		})

	tx.Statement.ReflectValue = reflect.ValueOf(dest)
	for tx.Statement.ReflectValue.Kind() == reflect.Ptr {
		elem := tx.Statement.ReflectValue.Elem()
		if !elem.IsValid() {
			elem = reflect.New(tx.Statement.ReflectValue.Type().Elem())
			tx.Statement.ReflectValue.Set(elem)
		}
		tx.Statement.ReflectValue = elem
	}
	Scan(rows, tx, ScanInitialized)
	return tx.Error
}

				if !update {
					if !isPtr {
						elem = elem.Elem()
					}
					if isArrayKind {
						if reflectValue.Len() >= int(db.RowsAffected) {
							reflectValue.Index(int(db.RowsAffected - 1)).Set(elem)
						}
					} else {
						reflectValue = reflect.Append(reflectValue, elem)
					}
				}
			}

			if !update {
				db.Statement.ReflectValue.Set(reflectValue)
			}

	}

	for i := 0; i < reflectResults.Len(); i++ {
		elem := reflectResults.Index(i)
		for idx, field := range relForeignFields {
			fieldValues[idx], _ = field.ValueOf(tx.Statement.Context, elem)
		}

		datas, ok := identityMap[utils.ToStringKey(fieldValues...)]
		if !ok {
			return fmt.Errorf("failed to assign association %#v, make sure foreign fields exists", elem.Interface())
		}

		for _, data := range datas {

					}

					fieldValue.Elem().Set(reflectV.Convert(fieldType))
					return
				}
			}

			if reflectV.Kind() == reflect.Ptr {
				if reflectV.IsNil() {
					field.ReflectValueOf(ctx, value).Set(reflect.New(field.FieldType).Elem())
				} else if reflectV.Type().Elem().AssignableTo(field.FieldType) {
					field.ReflectValueOf(ctx, value).Set(reflectV.Elem())
					return
				} else {

			}

			appendToFieldValues := func(ev reflect.Value) {
				if ev.Type().AssignableTo(elemType) {
					fieldValue = reflect.Append(fieldValue, ev)
				} else if ev.Type().Elem().AssignableTo(elemType) {
					fieldValue = reflect.Append(fieldValue, ev.Elem())
				} else {
					association.Error = fmt.Errorf("unsupported data type: %v for relation %s", ev.Type(), association.Relationship.Name)
				}

			if vv.IsValid() && !vv.IsZero() {
				results[idx] = fmt.Sprint(reflect.Indirect(vv).Interface())
			}
		}
	}

	return strings.Join(results, "_")
}

func Contains(elems []string, elem string) bool {
	for _, e := range elems {
		if elem == e {
			return true
		}
	}
	return false
}

func AssertEqual(x, y interface{}) bool {
	if reflect.DeepEqual(x, y) {
		return true
	}

			return fmt.Errorf("failed to unmarshal JSONB value: %#v", dbValue)
		}

		if len(bytes) > 0 {
			err = json.Unmarshal(bytes, fieldValue.Interface())
		}
	}

	field.ReflectValueOf(ctx, dst).Set(fieldValue.Elem())
	return
}

// Value implements serializer interface
func (JSONSerializer) Value(ctx context.Context, field *Field, dst reflect.Value, fieldValue interface{}) (interface{}, error) {

				switch db.Statement.ReflectValue.Kind() {
				case reflect.Struct:
					queryFields = db.Statement.ReflectValue.Type() != db.Statement.Schema.ModelType
				case reflect.Slice:
					queryFields = db.Statement.ReflectValue.Type().Elem() != db.Statement.Schema.ModelType
				}
			}

			if queryFields {
				stmt := gorm.Statement{DB: db}
				// smaller struct

		for stmt.ReflectValue.Kind() == reflect.Ptr {
			if stmt.ReflectValue.IsNil() && stmt.ReflectValue.CanAddr() {
				stmt.ReflectValue.Set(reflect.New(stmt.ReflectValue.Type().Elem()))
			}

			stmt.ReflectValue = stmt.ReflectValue.Elem()
		}
		if !stmt.ReflectValue.IsValid() {
			db.AddError(ErrInvalidValue)
		}
	}

	for _, f := range p.fns {
		f(db)
	}

	if stmt.SQL.Len() > 0 {