I am working on setting up a count cache for an (Foo)NSManagedObject\'s association(Bar). In object Foo, I want to keep a count of how many Bars it has. I want to avoid hitting the database every time
I am working on a Core Databased iOS application , in which i stored an array strings in coredata as NSData(binary data).
I have an iOS 4 + app, which is now being retrofitted to use Core Data.I have an Entity \"Article\" which has a to-many relationship to another Entity \"MediaResource\" and I generated NSManagedObject
In Xcode 3.X, you were supposed to right-click the whitespace in the fetch request template\'s predicate editor to specify a variable input rather than a hard开发者_如何学C-coded predicate.
Sometimes I got error saying that unrecognized selector objcType was sent to an NSDate object: 2011-06-11 14:44:51.589 MyApp[354:307] -[__NSDate objCType]:
I know this is probably a pretty basic question, but I\'m working with Core Data and a UITableView. I import all the data from Core Data to various mutable arrays. When a user rearranges the items in
My situation: I have an app that needs to store 10,000 - 30,000 locations in some sort of storage method, which are then displayed on a MKMapView as individual pins. I also have a server that needs to
**I\'m a bit at a loss about how to format an NSPredicate where \"any\" of a certain relationship matches more than one condition.
I have a relationship between two entities like so. A<<----->>B. A = Employees B = Areas An Employee can belong to many Areas and an Area can have many Employees. I would like to add a zone
Im using a NSFetchedResultsController for my UITableView which displays a bunch of events im storing in core data.
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