private async void Button_Click_2(object sender, RoutedEventArgs e)
{
#region 一对多的关系，在保存在服务端之前，所有对象必须已经存在于服务端。
AVObject weibo = new AVObject("Weibo");
weibo["content"] = "AVOS Cloud 什么的最萌了！";
//weibo["user"] = new AVUser() { Username = "******", Password = "******" };
//王校长的用户名已被别人抢注了，所以要正确关联用户，请开发者自定义个名字。
AVObject comment1 = new AVObject("Comment");
comment1["words"] = "第一条，好鸡冻！";
AVObject comment2 = new AVObject("Comment");
comment2["words"] = "点赞必回粉！";
AVObject comment3 = new AVObject("Comment");
comment3["words"] = "优质新西兰奶粉代购，请加q12345789";
AVObject comment4 = new AVObject("Comment");
comment4["words"] = "5元千粉，需要的请联系138XXXX";
await Task.WhenAll(new Task[] { weibo.SaveAsync(), comment1.SaveAsync(), comment2.SaveAsync(), comment3.SaveAsync(), comment4.SaveAsync() }).ContinueWith(t =>
{
AVRelation <AVObject> weiboRelation = weibo.GetRelation <AVObject>("comments");
weiboRelation.Add(comment1);
weiboRelation.Add(comment2);
weiboRelation.Add(comment3);
weiboRelation.Add(comment4);
return(weibo.SaveAsync());
});
#endregion
}
public void TestEncodeParseRelation()
{
var obj = new AVObject("Corgi");
AVRelation <AVObject> relation = AVRelationExtensions.Create <AVObject>(obj, "nano", "Husky");
IDictionary <string, object> value = ParseEncoderTestClass.Instance.Encode(relation) as IDictionary <string, object>;
Assert.AreEqual("Relation", value["__type"]);
Assert.AreEqual("Husky", value["className"]);
}
public void TestDecodeRelation()
{
IDictionary <string, object> value = new Dictionary <string, object>()
{
{ "__type", "Relation" },
{ "className", "Corgi" },
{ "objectId", "lLaKcolnu" }
};
AVRelation <AVObject> relation = AVDecoder.Instance.Decode(value) as AVRelation <AVObject>;
Assert.IsNotNull(relation);
Assert.AreEqual("Corgi", relation.GetTargetClassName());
}
public void TestRelationQuery()
{
AVObject parent = AVObject.CreateWithoutData("Foo", "abcxyz");
AVRelation <AVObject> relation = parent.GetRelation <AVObject>("child");
AVQuery <AVObject> query = relation.Query;
// Client side, the query will appear to be for the wrong class.
// When the server recieves it, the class name will be redirected using the 'redirectClassNameForKey' option.
Assert.AreEqual("Foo", query.GetClassName());
IDictionary <string, object> encoded = query.BuildParameters();
Assert.AreEqual("child", encoded["redirectClassNameForKey"]);
}
public static string GetTargetClassName <T>(this AVRelation <T> relation) where T : AVObject
{
return(relation.TargetClassName);
}
