Question

我正在尝试为我的iOS社交应用编写一个Parse查询，该查询将显示关注活跃用户的所有用户。以下是我到目前为止的情况：

PFQuery *followingUser = [PFQuery queryWithClassName:@"Activity"];
    [followingUser whereKey:@"Activity" equalTo:@"follow"];
    [followingUser whereKey:@"fromUser" equalTo:self.user];
    [followingUser includeKey:@"User"];
    [followingUser setCachePolicy:kPFCachePolicyCacheThenNetwork];

目前，这正确地为我提供了跟随任何其他用户的活动用户的所有记录，但是这并没有为我提供相应记录的PFUser详细信息（用户配置文件图片，显示名称等）。关于如何在一个查询中轻松绘制PFUser详细信息的任何想法？

提前致谢

Answer 1

以下是一些查询示例代码，用于获取所有被关注的用户，所有来自用户的帖子以及当前用户的所有帖子。我希望这有帮助！

// List of all users being followed by current user
PFQuery *followingActivitiesQuery = [PFQuery queryWithClassName:kFTActivityClassKey];
[followingActivitiesQuery whereKey:kFTActivityTypeKey equalTo:kFTActivityTypeFollow];
[followingActivitiesQuery whereKey:kFTActivityFromUserKey equalTo:[PFUser currentUser]];
followingActivitiesQuery.cachePolicy = kPFCachePolicyNetworkOnly;
followingActivitiesQuery.limit = 100;

// Posts from users being followed
PFQuery *postsFromFollowedUsersQuery = [PFQuery queryWithClassName:self.parseClassName];
[postsFromFollowedUsersQuery whereKey:kFTPostUserKey matchesKey:kFTActivityToUserKey inQuery:followingActivitiesQuery];
[postsFromFollowedUsersQuery whereKey:kFTPostTypeKey containedIn:@[kFTPostTypeImage,kFTPostTypeVideo,kFTPostTypeGallery]];

// Posts from current user
PFQuery *postsFromCurrentUserQuery = [PFQuery queryWithClassName:self.parseClassName];
[postsFromCurrentUserQuery whereKey:kFTPostUserKey equalTo:[PFUser currentUser]];
[postsFromCurrentUserQuery whereKey:kFTPostTypeKey containedIn:@[kFTPostTypeImage,kFTPostTypeVideo,kFTPostTypeGallery]];

PFQuery *query = [PFQuery orQueryWithSubqueries:[NSArray arrayWithObjects: postsFromFollowedUsersQuery, postsFromCurrentUserQuery, nil]];
[query includeKey:kFTPostUserKey];
[query orderByDescending:@"createdAt"];

解析iOS - 如何从另一个类查询PFUser详细信息

1 个答案: