修复品牌一览页面品牌的标签不存在导致php报错的bug

@@ -107,8 +107,8 @@ class BrandModel
                 $build['list'] = array();
                 foreach ($value as $row) {
                     $list['name'] = $row['brand_name'];
-                    $list['isHot'] = ($row['is_hot'] === 'Y') ? true : false;
-                    $list['isNew'] = ($row['is_show_new'] === 'Y') ? true : false;
+                    $list['isHot'] = (isset($row['is_hot']) && $row['is_hot'] === 'Y') ? true : false;
+                    $list['isNew'] = (isset($row['is_show_new']) && $row['is_show_new'] === 'Y') ? true : false;
                     $list['url'] = Helpers::url('', null, $row['brand_domain']);
                     $build['list'][] = $list;
                 }