do add weixin pay call api auth sign

@@ -856,9 +856,12 @@ class HomeController extends AbstractAction
 
             $totalFee = intval(strtr($orderDetail['data']['amount'], array('¥' => ''))) * 100;
             $openId = $this->getSession('weixinOpenId');
+            if (empty($openId)) {
+                break;
+            }
 
-            $tools = new JsApiPay();
             //统一下单
+            $tools = new JsApiPay();
             $input = new WxPayUnifiedOrder();
             $input->SetBody('有货订单号:' . $orderCode);
             $input->SetOut_trade_no('YOHOBuy_' . $orderCode); // 商户订单号