[英]MongoDB not querying
Hi I am trying to query my Mongo Database by using a list of Facebook ID's as the parameter in order to return the list of users with corresponding accounts. 嗨,我试图通过使用Facebook ID列表作为参数来查询我的Mongo数据库,以便返回具有相应帐户的用户列表。 The method works fine in the Unity Editor however when I run it on iOS I get a constructor error (I have set a blank default constructor in order to solve the issue however it still doesn't work)
该方法在Unity编辑器中工作正常,但是当我在iOS上运行时,我得到一个构造函数错误(我已经设置了一个空白的默认构造函数以解决问题,但它仍然无效)
Initial Method 初始方法
public void FetchData()
{
//data = Mongo.Instance.players.FindAll().ToList();
if (FB.IsLoggedIn)
{
FB.API("me/friends", HttpMethod.GET, FriendsHighscoreHndlr);
}
}
Callback Method 回调方法
public void FriendsHighscoreHndlr (IGraphResult FBresult){
var dict = Json.Deserialize(FBresult.ToString()) as Dictionary<string,object>;
var friendList = new List<object>();
friendList = (List<object>)(dict["data"]);
int _friendCount = friendList.Count;
Debug.Log("Found friends on FB, _friendCount ... " +_friendCount);
List<string> friendIDsFromFB = new List<string>();
for (int i=0; i<_friendCount; i++) {
string friendFBID = getDataValueForKey( (Dictionary<string,object>)(friendList[i]), "id");
string friendName = getDataValueForKey( (Dictionary<string,object>)(friendList[i]), "name");
Debug.Log( i +"/" +_friendCount +" " +friendFBID +" " +friendName);
friendIDsFromFB.Add(friendFBID);
}
//friendIDsFromFB.Add(AccessToken.CurrentAccessToken.UserId);
var query = Query.In("facebookID", BsonArray.Create(friendIDsFromFB));
//Debug.Log(query);
data = Mongo.Instance.players.Find(query).ToList();
}
Data Value for Key Method 关键方法的数据值
private string getDataValueForKey(Dictionary<string, object> dict, string key) {
object objectForKey;
if (dict.TryGetValue(key, out objectForKey)) {
return (string)objectForKey;
} else {
return "";
}
}
Return Query Result 返回查询结果
{
"_id" : ObjectId("XXXXXX"),
"facebookID" : "XXXXXXXXXXXXXX",
"name" : "John Doe",
"highScore" : 40501
}
Have you tried using a filter from Mongo's .NET drivers? 您是否尝试过使用Mongo .NET驱动程序的过滤器?
I would suggest trying something like the example below. 我建议尝试类似下面的例子。 (Note: this event is being fired on a pre-defined object which is being defined as a collection.)
(注意:此事件是在定义为集合的预定义对象上触发的。)
var filter = Builders<Object>.Filter.Eq(obj => obj.attribute, List<IDs>);
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