public function actionChangerOrder()
 {
     $data = Yii::$app->request->get();
     if (!isset($data['order_id'])) {
         echo "缺少参数order_id";
         exit;
     }
     $order_id = $data['order_id'];
     $session = new Sitesession();
     $session->setOrderId($order_id);
     //设置order_id
     $order = Orders::findOne($order_id);
     $user_id = $order->action_user;
     $session->storeUserId($user_id);
     //设置user_id
     $ordergoods = $order->ordergoods;
     $goods_arr = array();
     foreach ($ordergoods as $good) {
         $goods_arr[] = $good->goods_id;
     }
     $goods_arr = array_unique($goods_arr);
     $session->storeGoods($user_id, $goods_arr);
     $this->redirect(array('/order/index'));
 }