NSFetchedResultsController update/insert removing cell from UITableview - ios

Question

Using NSFetchedResultsController to auto update UITableview but facing some issue. When trying to add/edit from another device the whole cell is vanished every time.
Here is the bunch of code
// NSFetchedResultsController Delegate methods
- (void)controllerWillChangeContent:(NSFetchedResultsController *)controller
{
[self.aTableView beginUpdates];
}
- (void)controller:(NSFetchedResultsController *)controller didChangeSection:(id <NSFetchedResultsSectionInfo>)sectionInfo
atIndex:(NSUInteger)sectionIndex forChangeType:(NSFetchedResultsChangeType)type
{
UITableView *tableView = self.aTableView;
switch(type) {
case NSFetchedResultsChangeInsert:
[tableView insertSections:[NSIndexSet indexSetWithIndex:sectionIndex] withRowAnimation:UITableViewRowAnimationFade];
break;
case NSFetchedResultsChangeDelete:
[tableView deleteSections:[NSIndexSet indexSetWithIndex:sectionIndex] withRowAnimation:UITableViewRowAnimationFade];
break;
default:
return;
}
}
- (void)controller:(NSFetchedResultsController *)controller didChangeObject:(id)anObject
atIndexPath:(NSIndexPath *)indexPath forChangeType:(NSFetchedResultsChangeType)type
newIndexPath:(NSIndexPath *)newIndexPath
{
UITableView *tableView = self.aTableView;
switch(type) {
case NSFetchedResultsChangeInsert:
[tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:newIndexPath] withRowAnimation:UITableViewRowAnimationFade];
break;
case NSFetchedResultsChangeDelete:
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
break;
case NSFetchedResultsChangeUpdate:
if(SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(#"9.0"))
[tableView reloadRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
else
[tableView reloadData];
break;
case NSFetchedResultsChangeMove:
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationFade];
[tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:newIndexPath] withRowAnimation:UITableViewRowAnimationFade];
break;
}
}
- (void)controllerDidChangeContent:(NSFetchedResultsController *)controller
{
[self.aTableView endUpdates];
}
// Fetch data from coredata
-(NSFetchedResultsController *)loadForumData {
if (_fetchedForumController != nil) {
return _fetchedForumController;
}
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
NSEntityDescription *entity = [NSEntityDescription entityForName:#"SocialWall" inManagedObjectContext:self.managedObjectContext];
[fetchRequest setEntity:entity];
NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:#"dateTime" ascending:NO];
[fetchRequest setSortDescriptors:[[NSArray alloc] initWithObjects:sortDescriptor, nil]];
NSPredicate *predicate = [NSPredicate predicateWithFormat:#"(eventId == %#)",self.appDelegate.currentEvent.entityId];
[fetchRequest setPredicate:predicate];
fetchRequest.fetchLimit = _range+10;
fetchRequest.fetchOffset = 0; // start range
NSFetchedResultsController *theFetchedResultsController = [[NSFetchedResultsController alloc] initWithFetchRequest:fetchRequest managedObjectContext:self.managedObjectContext sectionNameKeyPath:nil cacheName:nil];
[theFetchedResultsController setDelegate:self];
_fetchedForumController = theFetchedResultsController;
[_fetchedForumController performFetch:nil];
return _fetchedForumController;
}
Here is the o/p what i'm getting on device/simulator after editing the cell . Please check the attached simulator screenshort - http://i.stack.imgur.com/LUMPh.png