role_id = $roleId; $distAdminRoleUser->user_id = $userId; $distAdminRoleUser->save(); } /* * 判断用户名是否存在 */ public static function findCountByUsername($id,$username) { $instance = new self(); if ($id) { $count = $instance->Model()::where('username', $username)->where('id', '!=', $id)->count(); } else { $count = $instance->Model()::where('username', $username)->count(); } return $count; } }