StackOverflow2013

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POCan't fetch number of cells in tableView
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copied!<p>I have a main tableViewController, touch a button self.navigation will push addItem viewController, click save self.navigation with pop the add VC, then we're back on the main one, I successfully add and save, also fetch, but when it comes to fetching number of cells, number returns 0, heres the method</p> <pre><code>- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { id <NSFetchedResultsSectionInfo> secInfo = [[self.fetchedResultsController sections] objectAtIndex:section]; NSLog(@"No. of cells determined: %lu", (unsigned long)[secInfo numberOfObjects]); return[secInfo numberOfObjects]; } </code></pre> <p>NSLog gives me 0, whats the problem, this gave me headache.</p> <p>Here's the fetch request:</p> <pre><code>- (NSFetchedResultsController*) fetchedResultsController { // Fetch Request NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; NSEntityDescription *entity = [NSEntityDescription entityForName:@"Goal" inManagedObjectContext:self.managedObjectContext]; [fetchRequest setEntity:entity]; NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"title" ascending:NO]; NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor, nil]; [fetchRequest setSortDescriptors:sortDescriptors]; // setting _fethcedResultsController _fetchedResultsController = [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest managedObjectContext:self.managedObjectContext sectionNameKeyPath:nil cacheName:nil]; // setting _fetchedResultsController to self _fetchedResultsController.delegate = self; // for the tableview updating thing // Thats it return _fetchedResultsController; } </code></pre> <p>Please note that when I run a check for items, it's not nil:</p> <pre><code>// fetching all items to check how many of them exists NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; [fetchRequest setEntity: [NSEntityDescription entityForName:@"Goal" inManagedObjectContext:self.managedObjectContext]]; NSManagedObjectContext *moc = self.managedObjectContext; NSError *fetchError = nil; NSArray *goals = [moc executeFetchRequest:fetchRequest error:&fetchError]; NSLog(@"No. of goals: %lu", (unsigned long)[goals count]); // end of check for items </code></pre>

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