drb/app/Model/RoleMenuButton.php

<?php

namespace App\Model;

use Illuminate\Database\Eloquent\Model;

class RoleMenuButton extends Model
{
    protected $table = "role_menu_button"; //指定表
    const CREATED_AT = 'crt_time';
    const UPDATED_AT = 'upd_time';
    protected $dateFormat = 'U';

    const special_one = -1;
    const special_two = -2;
    const special_three = -3;
    const special_four = -4;
    const special_five = -5;
}