StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

PO
primarykey
Id
11015962
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2012-06-13T13:32:09.550
FavoriteCount
0
LastActivityDate
2012-06-13T13:32:09.550
LastEditDate
LastEditorUserId
0
OwnerUserId
1673400
ParentId
10978341
PostTypeId
2
Score
1
ViewCount
0
LastEditorDisplayName
text
Body
I finally figured out my problem, thanks to @Eimantas for his help. He was right about overloaded queue. Since "saveToUrl:forSaveOperation:completionHandler:" is i/o operation, queue created a lot of threads (for each UIDocument) and app hangs. I overloaded "saveToUrl:forSaveOperation:completionHandler:" method in my custom UIDocument (to avoid saving docs in concurrent threads): <pre><code>- (void)saveToURL:(NSURL *)url forSaveOperation:(UIDocumentSaveOperation)saveOperation completionHandler:(void (^)(BOOL))completionHandler { NSError *contentsError = nil; NSError *attributesError = nil; NSError *savingError = nil; [self writeContents:[self contentsForType:self.fileType error:&contentsError] andAttributes:[self fileAttributesToWriteToURL:url forSaveOperation:saveOperation error:&attributesError] safelyToURL:url forSaveOperation:saveOperation error:&savingError]; NSLog(@"SAVING ERRORS: contents error - %@, attributes error - %@, saving error - %@",[contentsError localizedDescription], [attributesError localizedDescription], [savingError localizedDescription]); } </code></pre> Then I used my own serial queue to execute all save operations. At first, you need to add it like an iVar: <pre><code>dispatch_queue_t mySerialQueue; </code></pre> Then create it in init method: <pre><code>myCustomQueue = dispatch_queue_create("com.whatever.MyAwesomeQueue", DISPATCH_QUEUE_SERIAL); </code></pre> use it for saving: <pre><code>dispatch_async(mySyncQueue, ^{ // do saving stuff }); </code></pre> and then release it in dealloc: <pre><code>dispatch_release(mySyncQueue); </code></pre> After this changes I don't have any problems with it. Hope this helps! (and sorry for my English :>)
Tags
Title
singulars
PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POLarge array of UIDocuments for iCloud
 singulars
 PostTypePostTypeId
 PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. This table or related slice is empty.
UserOwnerUserId
1. USDmitry Zhukov
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. POLarge array of UIDocuments for iCloud
 singulars
 PostTypePostTypeId
 PTQuestion
PostsParentIdCreationDate
1. This table or related slice is empty.
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTAcceptedByOriginator
2. VO
 singulars
 PostPostId
 PO
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
CommentsPostId
1. This table or related slice is empty.

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.