[managedObjectContext performBlock:^{
            //push to parent
            //NSLog(@"pushing to parent context (writer context)");
            NSError * error;
            if([managedObjectContext hasChanges] && ![managedObjectContext save:&error]){
                NSLog(@"main Save Error: %@", [error localizedDescription]);
            }

            //NSLog(@"pushing to persistentstore");
            [self.writerManagedObjectContext performBlock:^{
                //push to parent
                NSError * error;
                if([self.writerManagedObjectContext hasChanges] && ![self.writerManagedObjectContext save:&error]){
                    NSLog(@"writer Save Error: %@", [error localizedDescription]);
                }
            }];
        }];