Where is best to put the Core Data code in a TabBar Application

Hey guys,

I'm working on a TabBar Application project and I'm using the Core Data framework.

I've followed Amit's courses, and so far I'm doing good :) .

In the AppDelegate class I have this code:

<pre> @property (strong, nonatomic) UIWindow *window; @property (strong, nonatomic) UITabBarController *tabBarController;

@property (readonly, retain, nonatomic) NSManagedObjectContext *managedObjectContext; @property (readonly, retain, nonatomic) NSManagedObjectModel *managedObjectModel; @property (readonly, retain, nonatomic) NSPersistentStoreCoordinator *persistentStoreCoordinator;

• (NSString *)iDeviceType;

• (NSURL *)applicationDocumentsDirectory;

• (void)saveContext; </pre>

Just like in the Treehouse iOS projects on the subject.

In my app, I have 4 sections: Pools, Players, (and Settings, and Help).

I've created the PoolsModel.xcdatamodeld generated the Pool class. In the Pools section, I have a "+" button and I can successfully add a Pool using Core Data.

My question is:

I've declared the 2 properties:

<pre> @property (retain, nonatomic) NSManagedObjectContext *managedObjectContext; @property (retain, nonatomic) NSManagedObjectModel *managedObjectModel; </pre>

in the "PoolsViewController.h" file, and obviously I'll have to do the same for the Players section.

Wouldn't be it more maintainable to subclass the "UITabBarController" class, and put these 2 properties, and also all the Core Data functionality for each Entity in that class, and than communicate with it?

Maybe someone who worked on more advanced Core Data projects knows which is the best approach ;) .

Thanks in advance