IOS Parse - 指针

Question

我有一个名为Subcategory的类，其中一个名为category的列是一个指针。我试图调用并存储特定行的指针。什么都没有存储到self.categoryName.text？谢谢你的期待。

这是我的代码：

PFQuery *query = [PFQuery queryWithClassName:@"SubCategory"];
    [query whereKey:@"user" equalTo:[PFUser currentUser]];
    [query whereKey:@"name" equalTo:@"Food"];
    [query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {

        for (PFObject *object in objects) {
            self.subcategoryName.text = object[@"name"];
            self.categoryName.text = object[@"category"];

        }
    }];

Answer 1

使用像这样的查询

[query whereKey:@"user" equalTo:[PFUser currentUser]];
[query includeKey:@"Food"];