uimanageddocument

I am working on an iPhone app that uses a subclass of UIManagedDocument and stores its documents on iCloud. It was all working fine until I changed my core data model / scheme (adding a new model version - like I had several times in the past few weeks). I added a new property and changed the data type of one of the existing properties. Now when I run my app I don't seem to be able to load my documents with UIManagedDocument 's -openWithCompletionHandler: . I can create new documents and read/write those. If I change the data model version back 1 then I am able to read the existing docs, but

I am working on my first "iCloud App". I worked through the Apple docs and the Stanford videos but I am still struggling to understand the "Big picture" of iCloud. My goal is to create a " Library style " app (which is Apples term for an app with "a single Core Data stack with a single persistent store coordinator and a single persistent store") like the Employees example . Following the Stanford videos I am using a UIMangedDocument to setup all Core Data stuff and enable the iCloud capabilities. The UIMangedDocument contains the Database and is "stored in the cloud". This is already the first

I've got an old app that uses UIManagedDocument to interact with Core Data. However on iOS 11.2 (and possibly earlier iOS 11 point releases) the saveToURL:forSaveOperation:completionHandler: method seems to have stopped working both on-device and in the simulator (however it does still work in the iOS 10.3.1 simulator). Specifically, in the code below the completionHandler inside the first if statement is never executed (as NSLog messages indicate). - (void)useDemoDocument { NSURL *url = [[[NSFileManager defaultManager] URLsForDirectory:NSDocumentDirectory inDomains:NSUserDomainMask]

I hope someone has some thoughts on this one... I have a project that uses UIManagedDocument. The first thing I do in the appDelegate is open the document. Everything has been going fine until suddenly (nothing was changed in the code) the -openWithCompletionHandler: stopped executing the handler code. The app works just fine on the device, but not in the simulator. As a lark I tried running the app under the iOS 5.0 and 6.0 simulators and everything works as expected!?! I have reinstalled xcode 4.5 and the behavior stays the same. I deinstalled by trashing the xcode app in the applications

I have a very weird problem I've spent the last two days trying to solve... I had a piece of code that was working perfectly fine on Xcode 4.4 and iOS 5.1 Simulator, using the 5.1 SDK. After I updated to Xcode 4.5 and the 6.0 SDK, my code stopped working in the iOS 5.1 Simulator... even though it works perfectly fine in the iOS 6.0 Simulator. Was there any change I'm not aware of? This is the code: - (void)useDocument { if (![[NSFileManager defaultManager] fileExistsAtPath:[self.database.fileURL path]]){ [self.database saveToURL:self.database.fileURL forSaveOperation:UIDocumentSaveForCreating