public function actionCreate()
 {
     $params = $this->getParams();
     $accountId = $this->getAccountId();
     $params['accountId'] = $accountId;
     $productInfo = isset($params['intro']) ? $params['intro'] : '';
     unset($params['intro']);
     //check the property of the category
     Product::checkParam($params, $accountId);
     $product = new Product();
     $product->load($params, '');
     if ($product->save()) {
         //add description
         $info = $product->addIntro($product->_id, $productInfo);
         $product->intro = $info;
         $product->_id .= '';
         return $product;
     } else {
         throw new ServerErrorHttpException('Fail to create member');
     }
 }