jya-oa-api/application/common/validate/UserTotal.php

<?php
namespace app\common\validate;

use think\Db;
use think\Validate;

class UserTotal extends Validate{

    protected $rule = [
        'user_id'  =>  'require',
    ];

    protected $message = [
        'user_id.require' => '未选择用户',
    ];

    protected $scene = [

    ];

}