Ios 解析Heroku迁移（MongoLab）：关系问题

我成功地使用mongolab将解析迁移到解析服务器。现在一切都按预期进行了，除了我使用MongoLab使用PFUser登录时，我的PFRelation对象总是空的

在我的AppDelegate中，当我运行此代码（正式解析）时：

HomeView.m：

self.currentUser = [PFUser currentUser];
self.friendsRelation = [[PFUser currentUser] objectForKey:@"friends"];
NSLog(@"%@", self.currentUser);
NSLog(@"%@", self.friendsRelation);

登录后，我的HomeView会记录以下内容：

2016-02-28 23:25:38.756 ChillN[4131:57119] <PFUser: 0x7fe0b3e4fc10, objectId: MZdPHaqByR, localId: (null)> {
    friends = "<PFRelation: 0x7fe0b3e4f900, 0x7fe0b3e4fc10.friends -> _User>";
    phone = "06 19 05 39 30";
    surname = a;
    username = a;
}
2016-02-28 23:25:38.756 ChillN[4131:57119] <PFRelation: 0x7fe0b3e4f900, 0x7fe0b3e4fc10.friends -> _User>

这是我的数据库： 解析：

Heroku（蒙古语）：

以下是蒙古银行用户的记录：

{
    "_id": "MZdPHaqByR",
    "_perishable_token": "SHuhtWl0EoxxmNLOkspmp1vBF",
    "username": "a",
    "phone": "06 19 05 39 27",
    "surname": "a",
    "_session_token": "zO2drjzrO0To1q0JiohaL8f4v",
    "_hashed_password": "$2a$10$a7j5yB7uFDtv.YnHESVJgO9Io.nci8hbx7vngOo.FyzA3qBLxw38G",
    "_created_at": {
        "$date": "2016-02-28T21:55:48.548Z"
    },
    "_updated_at": {
        "$date": "2016-02-28T22:03:45.704Z"
    }
}

---

这只是我代码中的一个错误，我必须替换：

self.friendsRelation = [[PFUser currentUser] objectForKey:@"friends"];

到

希望这能帮助另一个人。干杯

2016-02-28 23:29:21.785 ChillN[4281:59046] <PFUser: 0x7fa43c09ed20, objectId: MZdPHaqByR, localId: (null)> {
    phone = "06 19 05 39 27";
    surname = a;
    username = a;
}
2016-02-28 23:29:21.786 ChillN[4281:59046] (null)

[PFUser logInWithUsernameInBackground:user
                                 password:password block:^(PFUser *user, NSError *error) {}];

{
    "_id": "MZdPHaqByR",
    "_perishable_token": "SHuhtWl0EoxxmNLOkspmp1vBF",
    "username": "a",
    "phone": "06 19 05 39 27",
    "surname": "a",
    "_session_token": "zO2drjzrO0To1q0JiohaL8f4v",
    "_hashed_password": "$2a$10$a7j5yB7uFDtv.YnHESVJgO9Io.nci8hbx7vngOo.FyzA3qBLxw38G",
    "_created_at": {
        "$date": "2016-02-28T21:55:48.548Z"
    },
    "_updated_at": {
        "$date": "2016-02-28T22:03:45.704Z"
    }
}

self.friendsRelation = [[PFUser currentUser] objectForKey:@"friends"];

self.friendsRelation = [[PFUser currentUser] relationForKey:@"friends"];