我有一些代码应该从嵌入式MongoDB文档中删除一条记录。代码如下:publicfunctionactionDeleteSaved(){$savedLink=$_POST['savedLink'];$userId=Yii::app()->user->getId();$current=SaveLink::model()->findByPk($userId);if(in_array($savedLink,$current->links)){array_slice($current->links,$savedLink);$current->save();}}这是将数据传递给Controlle