drb/app/Model/Product.php

<?php

namespace App\Model;

use Illuminate\Database\Eloquent\Model;

class Product extends Model
{
    protected $table = "product"; //指定表
    const CREATED_AT = 'crt_time';
    const UPDATED_AT = 'upd_time';
    protected $dateFormat = 'U';
    const State_zero = 0;
    const State_one = 1;
    const State_two = 2;
    public static $state = [
        self::State_zero => '新增',
        self::State_one => '上架',
        self::State_two => '下架',
    ];
}