feat: NG-15: 新会员注册时增加国家与语言选项.

common/models/FreeTemplate.php

@@ -34,7 +34,7 @@ class FreeTemplate extends \common\components\ActiveRecord
         return [
             [['country_id',  'freight', 'free_shipping', 'currency_id'], 'required'],
             [['freight', 'free_shipping', 'currency_id'], 'number'],
-            [['SN'], 'unique'],
+            [['country_id'], 'unique'],
         ];
     }