Value  string
	Blogs  []*Blog `gorm:"many2many:blog_tags"`
}

func compareTags(tags []Tag, contents []string) bool {
	var tagContents []string
	for _, tag := range tags {
		tagContents = append(tagContents, tag.Value)
	}
	sort.Strings(tagContents)
	sort.Strings(contents)
	return reflect.DeepEqual(tagContents, contents)
}

func TestManyToManyWithMultiPrimaryKeys(t *testing.T) {