public function saveUserRole($user_id)
 {
     $role = CRequest::param("role");
     $role_ids = [];
     if (!empty($role)) {
         //var_dump($role);
         $innerTransaction = Yii::$app->db->beginTransaction();
         try {
             foreach ($role as $k => $role_id) {
                 $one = AdminUserRole::findOne(['role_id' => $role_id, 'user_id' => $user_id]);
                 $role_ids[] = $role_id;
                 if (!$one['id']) {
                     $one = new AdminUserRole();
                     $one->role_id = $role_id;
                     $one->user_id = $user_id;
                     $one->save();
                 }
             }
             $table = AdminUserRole::tableName();
             if (!empty($role_ids)) {
                 $role_str = implode(",", $role_ids);
                 $sql = "delete from {$table} where user_id = {$user_id} and role_id not in ({$role_str})";
             } else {
                 $innerTransaction->rollBack();
                 echo json_encode(["statusCode" => "300", "message" => "您至少要勾选一个用户权限组"]);
                 exit;
             }
             CDB::deleteBySql($sql);
             $innerTransaction->commit();
         } catch (Exception $e) {
             $innerTransaction->rollBack();
             echo json_encode(["statusCode" => "300", "message" => 'Save User Role Fail !']);
             exit;
         }
     } else {
         echo json_encode(["statusCode" => "300", "message" => "您至少要勾选一个用户权限组"]);
         exit;
     }
 }