},
	}
	DB.Save(&blog)

	blog2 := Blog{
		ID:     blog.ID,
		Locale: "EN",
	}
	DB.Create(&blog2)

	if !compareTags(blog.SharedTags, []string{"tag1", "tag2"}) {
		t.Fatalf("Blog should has two tags")
	}

	// Append
	tag3 := &Tag{Locale: "ZH", Value: "tag3"}
	DB.Model(&blog).Association("SharedTags").Append([]*Tag{tag3})
	if !compareTags(blog.SharedTags, []string{"tag1", "tag2", "tag3"}) {

		Relation{
			Name: "Tags", Type: schema.Many2Many, Schema: "Blog", FieldSchema: "Tag",
			JoinTable: JoinTable{Name: "blog_tags", Table: "blog_tags"},
			References: []Reference{
				{"ID", "Blog", "BlogID", "blog_tags", "", true},
				{"Locale", "Blog", "BlogLocale", "blog_tags", "", true},
				{"ID", "Tag", "TagID", "blog_tags", "", false},
				{"Locale", "Tag", "TagLocale", "blog_tags", "", false},
			},
		},