workapi/app/Model/RecordTable.php

<?php

namespace App\Model;

use Illuminate\Database\Eloquent\Model;

class RecordTable extends Model
{
    protected $table = "record_table"; //指定表
    const CREATED_AT = null;
    const UPDATED_AT = null;
    protected $dateFormat = 'U';
    protected $guarded = [];

    const type_one = 1;
    const type_two = 2;
    const type_three = 3;

    public static $type = [
        self::type_one => "领料申请单",
        self::type_two => "产成品入库单",
        self::type_three => "发货单",
    ];
}