Question

所以这里是我试图实现的结果我有2个类，一个是Parses User类，另一个叫做Content。我正在查询内容让我们说如果A匹配B我想从User类和照片中获取相应的用户名。任何帮助将不胜感激

Answer 1

我从您的说明中获得的是发件人是内容类的属性，用户名是用户 class，您正试图获取特定用户的内容

PFQuery *query = [PFQuery queryWithClassName:@"Content"];
[query whereKey:@"sender" equalTo:[PFUser currentUser]];
[query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
    for (PFObject *content in objects)
    {
        // getting the user who created the Content
        PFObject *user = [content objectForKey:@"file"];

        PFFile *imageFile = [user objectForKey:@"photo"];
        [imageFile getDataInBackgroundWithBlock:^(NSData *result, NSError *error) {
            if (!error) 
            {
                UIImage *image = [UIImage imageWithData:result];
                imageView.image = image;
            }
         }];
    }
}];

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用Swift查询指针Parse

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