public function run()
 {
     $controller = $this->getController();
     $op = Yii::app()->request->getParam('op');
     $ids = Yii::app()->request->getParam('id');
     $uid = Yii::app()->user->id;
     $res = false;
     //操作状态
     $count = true;
     //是否需要统计
     $count_field = '';
     //统计数据的字段名
     $action = '';
     //要返回的action名
     if (!$uid) {
         $message = Yii::t('common', 'You Need Login');
     } else {
         if (!$ids) {
             $message = Yii::t('common', 'Operation Failed');
         } else {
             switch ($op) {
                 case 'collect':
                     $collect_mod = new Collect();
                     //检测是否是自己收藏的
                     foreach ((array) $ids as $k => $id) {
                         $tmp = $collect_mod->findByPk($id);
                         if ($tmp->user_id != $uid) {
                             unset($ids[$k]);
                         } else {
                             $content[] = $collect_mod->findByPk($id);
                         }
                     }
                     $collect_mod->deleteByPk($ids);
                     $res = true;
                     $count_field = 'favorite_count';
                     $action = 'mycollect';
                     break;
                 case 'attention':
                     $attention_mod = new Attention();
                     //检测是否是自己关注的
                     foreach ((array) $ids as $k => $id) {
                         $tmp = $attention_mod->findByPk($id);
                         if ($tmp->user_id != $uid) {
                             unset($ids[$k]);
                         } else {
                             $content[] = $attention_mod->findByPk($id);
                         }
                     }
                     $attention_mod->deleteByPk($ids);
                     $res = true;
                     $count_field = 'attention_count';
                     $action = 'myattention';
                     break;
                 case 'friend':
                     $friend_mod = new Friend();
                     //检测是否是自己的好友
                     foreach ((array) $ids as $k => $id) {
                         $tmp = $friend_mod->findByPk($id);
                         if ($tmp->uid1 != $uid && $tmp->uid2 != $uid) {
                             unset($ids[$k]);
                         }
                     }
                     $friend_mod->deleteByPk($ids);
                     $res = true;
                     $count = false;
                     $action = 'myfriends';
                     break;
                 default:
                     break;
             }
             if ($res) {
                 $message = Yii::t('common', 'Cancel Success');
                 if ($count && $content) {
                     //减少统计数据
                     $model_type = new ModelType();
                     foreach ($content as $c) {
                         $type = $model_type->findByPk($c->type);
                         $type_name = ucfirst($type->type_key);
                         if ($type_name && $c && $count_field) {
                             $content_mod = new $type_name();
                             $cur_post = $content_mod->findByPk($c->cid);
                             if ($cur_post->{$count_field} > 0) {
                                 $content_mod->updateCounters(array($count_field => -1), 'id=:id', array('id' => $c->cid));
                             }
                         }
                     }
                 }
             } else {
                 $message = Yii::t('common', 'Operation Failed');
             }
         }
     }
     //用setFlash提示信息(类似alert)
     $controller->layout = false;
     Yii::app()->user->setFlash($res ? 'success' : 'error', $message);
     $controller->redirect($controller->createUrl('user/' . $action));
 }