do add union code and fixes bug to weixin pay

@@ -32,8 +32,5 @@
         {{/ payAppInfo}}
     </div>
 </div>
-{{#if oldWeixinAuthUrl}}
-<iframe height="0" width="0"  src="{{oldWeixinAuthUrl}}" style="display:none"></iframe>
-{{/if}}
 {{> layout/footer}}
 

@@ -803,7 +803,7 @@ class HomeController extends AbstractAction
                 ),
                 1 => array(
                     'appIcon' => '',
-                    'payLink' => '',
+                    'payLink' => Helpers::url('/shopping/pay/wechatwapdialog', array('order_code' => $orderCode)),
                     'appId' => 'weixin',
                     'app' => '微信支付',
                     'hint' => '推荐使用',