gistfile1.m

@protocol ATFetchedResultsControllerUpdateDelegate;

@interface ATFetchedResultsControllerDelegate : NSObject <NSFetchedResultsControllerDelegate>

@property (weak, nonatomic, readonly) UITableView *tableView;
@property (weak, nonatomic) id<ATFetchedResultsControllerUpdateDelegate> updateDelegate;

- (id)initWithTableView:(UITableView *)tableView;

@end

@protocol ATFetchedResultsControllerUpdateDelegate <NSObject>

@required
- (void)fetchedResultsControllerDelegate:(ATFetchedResultsControllerDelegate *)delegate wantsToConfigureCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath;

@end

gistfile2.m

#import "ATFetchedResultsControllerDelegate.h"

@implementation ATFetchedResultsControllerDelegate

- (id)initWithTableView:(UITableView *)tableView
{
    self = [super init];

    if (!self) {
        return nil;
    }

    _tableView = tableView;

    return self;
}

#pragma mark - NSFetchedResultsControllerDelegate

- (void)controllerWillChangeContent:(NSFetchedResultsController *)controller
{
    [self.tableView beginUpdates];
}

- (void)controller:(NSFetchedResultsController *)controller didChangeSection:(id <NSFetchedResultsSectionInfo>)sectionInfo
           atIndex:(NSUInteger)sectionIndex forChangeType:(NSFetchedResultsChangeType)type
{
    switch(type) {
        case NSFetchedResultsChangeInsert:
            [self.tableView insertSections:[NSIndexSet indexSetWithIndex:sectionIndex] withRowAnimation:UITableViewRowAnimationAutomatic];
            break;

        case NSFetchedResultsChangeDelete:
            [self.tableView deleteSections:[NSIndexSet indexSetWithIndex:sectionIndex] withRowAnimation:UITableViewRowAnimationAutomatic];
            break;
    }
}

- (void)controller:(NSFetchedResultsController *)controller didChangeObject:(id)anObject
       atIndexPath:(NSIndexPath *)indexPath forChangeType:(NSFetchedResultsChangeType)type
      newIndexPath:(NSIndexPath *)newIndexPath
{
    switch(type) {
        case NSFetchedResultsChangeInsert:
            [self.tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:newIndexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
            break;

        case NSFetchedResultsChangeDelete:
            [self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
            break;

        case NSFetchedResultsChangeUpdate:
            [self.updateDelegate fetchedResultsControllerDelegate:self wantsToConfigureCell:[self.tableView cellForRowAtIndexPath:indexPath] forRowAtIndexPath:indexPath];
            break;

        case NSFetchedResultsChangeMove:
            [self.tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
            [self.tableView insertRowsAtIndexPaths:[NSArray arrayWithObject:newIndexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
            break;
    }
}

- (void)controllerDidChangeContent:(NSFetchedResultsController *)controller
{
    [self.tableView endUpdates];
}

@end