In Code: - (NSFetchedResultsController *)getFetchedResultsController { if (_fetchedResultsController != nil) {
I want to have this model : Feat开发者_StackOverflow中文版ure -> Image (relationship name: image inverse: feature)
I\'m working on a Core Data driven app that has 2 entities requiring special sorting considerations in the NSFetchedResultsController.
On my Lion app, I have this data model: The relationship subitems inside Item is ordered. Xcode 4.1 (build 4B110) has created for me the file Item.h, Item.m, SubItem.h and SubItem.h.
I\'m trying to write a custom getter for a property with type ABRecordRef (which is a C-type). I don\'t understand the memory semantics of this, and I keep getting a crash whenever the property is acc
I am a newbie so I apologise if I am missing something obvious. I am trying to write an app in Xcode 4 to produce stats for my local sports team.
In my core data db, every item has a string id which is an url to indicate whom this item belongs to.
I want to read some data from Core Data for statistics. My datamodel is like in the tutorials found in the internet (a bit of clicking and voilà it is ready). But now I want to work with the data.
Ok, so I have multiple threads pull data from the persistent store (SQLite database) into a single NSManagedObjectContext (MOC) instance. I have tested it pretty thoroughly and in the case where opera
Been having my first crack at Core Data and I\'m getting the following error when running my code on my device, but it works fine on the simulator..
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