Mr.Lin

犯了一個低級錯誤  檢查了好久，一直試不出來

謹惕一下自己

再用Parse 工具 orderByDescending  的method

想要按照updateAt排序

於是乎

按照範例

PFQuery *query = [PFQuery queryWithClassName:@"Comment"]; // Retrieve the most recent ones

[query orderByDescending:@"createdAt"];

// Only retrieve the last ten

query.limit = 10;

// Include the post data with each comment

[query includeKey:@"post"];

[query findObjectsInBackgroundWithBlock:^(NSArray *comments, NSError *error) {

// Comments now contains the last ten comments, and the "post" field

// has been populated. For example:

for (PFObject *comment in comments) {

// This does not require a network access.

PFObject *post = comment[@"post"];

NSLog(@"retrieved related post: %@", post); }

}];

把[query orderByDescending:@"createdAt"];

createdAt 改為 updateAt

但一直沒辦法按照updateAt排序

困擾我好幾天了。。。

沒想到今天終於找到原因

updateAt =\= updatedAt

知道這個錯誤的時候快吐血了....

總算是解決這個問題了Q_Q