public function loadRecommendModel($bid)
 {
     $uid = Yii::app()->user->getId();
     $model = Recommended::model()->findByAttributes(array('user_id' => $uid, 'product_id' => $bid));
     if ($model === null) {
         $model = new Recommended();
     }
     return $model;
 }
 /**
  * Returns the data model based on the primary key given in the GET variable.
  * If the data model is not found, an HTTP exception will be raised.
  * @param integer $id the ID of the model to be loaded
  * @return Recommended the loaded model
  * @throws CHttpException
  */
 public function loadModel($id)
 {
     $model = Recommended::model()->findByPk($id);
     if ($model === null) {
         throw new CHttpException(404, 'The requested page does not exist.');
     }
     return $model;
 }