/** * 异步删除话题 */ public function actionDoDelTopic() { $id = $_GET['tid']; $model = new GroupTopic(); $topic = $model->loadTopic($id); $gid = $topic['gid']; $return = $topic->delTopic(); if (Yii::app()->request->isAjaxRequest) { echo !$return ? -1 : 1; } else { $this->redirect(array('group/show', 'gid' => $gid)); } }