Can't fetch number of cells in tableView - ios

Question

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
- (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];
}
NSLog gives me 0, whats the problem, this gave me headache.
Here's the fetch request:
- (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;
}
Please note that when I run a check for items, it's not nil:
// 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

Answer 1

I forgot to put this code of line:
if (_fetchedResultsController != nil) {
return _fetchedResultsController;
}
in method
- (NSFetchedResultsController*) fetchedResultsController;
so before I did, the app always creates new fetchedResultsController and over-write the old one.