从分析查询添加数据的NSArray在解析类

所以我的应用程序商店一个朋友在关键firstName头名，在关键lastName姓和名叫做此外friendsAssociation它也存储在用户的用户名在调用的对象已签署用户。我想查询数据以查找用户对象等于用户用户名的所有实例。然后，我想将朋友的名字存储在数组中。从分析查询添加数据的NSArray在解析类

下面是代码的副本，我试图用

PFQuery *query = [PFQuery queryWithClassName:@"friendsAssociation"]; 
//quesrys the class Friend asssociation to find when instances of "user" equal the 
//logged in user's username 
[query whereKey:@"user" equalTo:_user]; 
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) { 
    if (!error) { 
     // The find succeeded. 
     NSLog(@"Successfully retrieved %d users.", objects.count); 
     // Do something with the found objects 
     if (objects.count == 0) { 
      //uialert letting the user know that no phone number matches the query 
      UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"No User" message:@"No user matches this username"delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil]; 
      [alert show]; 
     } 
     //if there is an object matching the query 
     if (objects.count >=1) { 
      for (PFObject *object in objects) { 
       NSLog(@"%@", objects);} 
      firstname[objects.count]= [object objectforkey:@"firstName"]; 
     } 
     //if there is more than one phonenumber matching the query as 
     //the user to input the friends username 
     //instead 
    } else { 
     // Log details of the failure 
     NSLog(@"Error: %@ %@", error, [error userInfo]); 
    } 
}];

具体我想在一个名为姓

for (PFObject *object in objects) { 
     NSLog(@"%@", objects);} 
     firstname[objects.count]= [object objectforkey:@"firstName"]; 
    }

然而，一个NSArray使用for循环来存储数据，由于未声明对象，因此我无法获得线路[object objectforkey:@"firstName"]。我怎样才能解决这个问题？

来源

2015-03-03 David

您的for循环中出现语法问题（在使用object之前，用}关闭它）。

试试这个：

for (PFObject *object in objects) { 
    NSLog(@"%@", object); 
    [firstname addObject:[object objectforkey:@"firstName"]]; 
}

编辑：通过这样做，你可能要平衡去除与另外一个右花括号的留在你的代码开放较早...

来源

2015-03-03 07:14:53 Romain

从分析查询添加数据的NSArray在解析类

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