/**
  * Deletes a particular model.
  * If deletion is successful, the browser will be redirected to the 'admin' page.
  * @param integer $id the ID of the model to be deleted
  */
 public function actionDelete($id)
 {
     if (Yii::app()->request->isPostRequest) {
         if ('admin' == CommonData::getPrivilege()) {
             $this->loadModel($id)->adminDelete();
         } else {
             $this->loadModel($id)->userDelete();
         }
         // if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
         if (!isset($_GET['ajax'])) {
             $this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
         }
     } else {
         Yii::log('Invalid request. Please do not repeat this request again.');
         throw new CHttpException(400, 'Invalid request. Please do not repeat this request again.');
     }
 }
 function __construct()
 {
     parent::__construct('articles');
 }
 function create($data)
 {
     $data['pass'] = $this->hash_data($data['pass']);
     return parent::create($data);
 }
 function __construct()
 {
     parent::__construct('users');
 }