为实体插入新对象

Question

我尝试在从服务器收到成功响应后将数据插入CoreData。除了插入数据外，一切都很有效。有人可以看看我的片段，让我知道它是错还是可能缺少某些东西。 [items objectAtIndex：]返回值。除了我在下面的代码之后执行fetchedObjects count之外，一切都工作了，它返回数据库中已有的值，而不是正在插入的值。

    [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
    dispatch_async(dispatch_get_main_queue(), ^{
    NSArray *item = [operation.responseString componentsSeparatedByString:@"-"];
    AppDelegate *ad = (AppDelegate *)[[UIApplication sharedApplication] delegate];
    NSManagedObjectContext *context = [ad managedObjectContext];
    NSManagedObject *object = [NSEntityDescription
                                  insertNewObjectForEntityForName:@"Events"
                                  inManagedObjectContext:context];
    [object setValue:@"1" forKey:@"accounts"];
    [object setValue:@"1" forKey:@"active"];
    [object setValue:address forKey:@"address"];
    [object setValue:ayn forKey:@"anonymous"];
    [object setValue:Starttimestamp forKey:@"date"];
    [object setValue:Endtimestamp forKey:@"enddate"];
    [object setValue:[item objectAtIndex:3] forKey:@"eslink"];
    [object setValue:[item objectAtIndex:6] forKey:@"eventID"];
    [object setValue:[item objectAtIndex:5] forKey:@"eventprofile"];
    [object setValue:@"" forKey:@"imagedata"];
    [object setValue:@"0" forKey:@"images"];
    [object setValue:@"0" forKey:@"isLive"];
    [object setValue:lp forKey:@"lin_priv"];
    [object setValue:Ename forKey:@"name"];
    [object setValue:[[NSUserDefaults standardUserDefaults] objectForKey:@"Cloud_ID"] forKey:@"owner"];
    [object setValue:pp forKey:@"pic_priv"];
    [object setValue:[item objectAtIndex:1] forKey:@"pin"];
    [object setValue:[item objectAtIndex:2] forKey:@"profile"];
    [object setValue:[item objectAtIndex:4] forKey:@"username"];
    NSError *error;
    if (![context save:&error]) {
        NSLog(@"Failed to save - error: %@", [error localizedDescription]);
    }else{
        NSLog(@"Success");

    }
});

编辑：我添加了成功块以显示。