/**
  * 商品をカートに追加
  * route --> /item/add/:itemid
  */
 public function addAction()
 {
     $this->_log->debug(__CLASS__ . ":" . __FUNCTION__ . " called:(" . __LINE__ . ")");
     $params = $this->getPostList();
     if (count($params) == 0) {
         $this->_log->debug("パラメータがPOSTされていません");
         return;
     }
     $params['customerID'] = Auth::getUserID();
     $mapper = new Item();
     $mapper->addItemInCart($params);
     $this->redirect('/item');
     return;
 }