When my main view controller is loaded and it calls viewDidLoad I am performing a fetch request and retiring an array or my core data objects:
+ (NSArray *)getData {
// Fetch Data
NSError *error = nil;
if (![[[AppDelegate instance] fetchedResultsController] performFetch:&error]) {
// Update to handle the error appropriately.
NSLog(@"Unresolved error %@, %@", error, [error userInfo]);
abort();
}
NSArray *items = [[AppDelegate instance].fetchedResultsController fetchedObjects];
return items;
}//end
For some reason, this returns an empty array when called from viewDidLoad.
If I call the same method from viewDidAppear: it works correctly and returns the NSArray of my CoreData objects.
Is there a reason why this won't work in viewDidLoad?
EDIT:
Fetched Results Controller method:
/**
* The controller the gets our results from core data
*
* @version $Revision: 0.1
*/
- (NSFetchedResultsController *)fetchedResultsController {
if (fetchedResultsController != nil) {
return fetchedResultsController;
}
// Create and configure a fetch request
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
NSEntityDescription *entity = [NSEntityDescription entityForName:@"SiteConfig" inManagedObjectContext:self.managedObjectContext];
[fetchRequest setEntity:entity];
// Create the sort descriptors array
NSSortDescriptor *sectionTitle = [[NSSortDescriptor alloc] initWithKey:@"createdDate" ascending:NO];
NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:sectionTitle, nil];
[fetchRequest setSortDescriptors:sortDescriptors];
// Create and initialize the fetch results controller
NSFetchedResultsController *aFetchedResultsController = [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest managedObjectContext:self.managedObjectContext sectionNameKeyPath:nil cacheName:@"Root"];
self.fetchedResultsController = aFetchedResultsController;
fetchedResultsController.delegate = self;
// Memory management
return fetchedResultsController;
}//end
