search gender 判断是否存在

@@ -340,7 +340,7 @@ class SearchController extends AbstractAction
 //            $data = Product\ListModel::getClassData($condition);
 
             // 产品吴婷要求这么做，目的是保持性别中的所有性别和当前频道性别一致
-            if ($condition['gender'] === '1,2,3') {
+            if (isset($condition['gender']) && $condition['gender'] === '1,2,3') {
                 switch ($condition['channel']) {
                     case 1:
                         $condition['gender'] = '1,3';