验证变量是否返回

@@ -490,14 +490,12 @@ class IndexController extends AbstractAction
         $data['gender'] = $this->get('gender');
         $data['channel'] = $this->get('yh_channel') ? $this->get('yh_channel') : Helpers::getChannelByCookie();
 
-        $filter = Product\SearchModel::filter(array(
+       $filter = Product\SearchModel::filter(array(
             'shop_id' => $shopId,
-            'gender' => $data['gender'],
-            'channel' => $data['channel'],
-            'brand' => $data['brand']
+            'gender' => empty($data['gender']) ? '' : $data['gender'],
+            'brand' => empty($data['brand']) ? '' : $data['brand']
         ));
-
-        $data['filter'] = $filter['filter'];
+        $data['filter'] = isset($filter['filter']) ? $filter['filter'] : array();
 
         /* tar add 160931 首屏加载，加载一次 goods */
         $goods = \Product\SearchModel::search(array(