Core Data Part 5 – deleting

October 8, 2015iOScore dataadmin

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-(void)deleteFirstPerson {          NSFetchRequest *request = [NSFetchRequest fetchRequestWithEntityName:@"Person"];     NSPredicate *predicate = [NSPredicate predicateWithFormat:@"ANY firstName BEGINSWITH 'RICKY'"];          NSSortDescriptor *alphaSort = [NSSortDescriptor sortDescriptorWithKey:@"firstName" ascending:YES];     [request setPredicate:predicate];     [request setSortDescriptors:@[alphaSort]];          NSError *fetchError;     NSArray *results = [[self managedObjectContext] executeFetchRequest:request error:&fetchError];          if([results count]==0) {         NSLog(@"DB empty. No one to delete");         return;     }     //Rollback example     Person * toDelete = [results objectAtIndex:0];          NSLog(@"%@", toDelete.firstName);     NSLog(@"%@", toDelete.lastName);          [[self managedObjectContext] deleteObject:toDelete];          //save back to data store     [[self managedObjectContext] save:nil];      }