drb/app/Model/SyncTempRecordProduct.php

<?php

namespace App\Model;

use Illuminate\Database\Eloquent\Model;

class SyncTempRecordProduct extends Model
{
    protected $guarded = [];
    protected $table = "sync_temp_records_product"; //指定表
    const CREATED_AT = 'crt_time';
    const UPDATED_AT = 'upd_time';
    protected $dateFormat = 'U';

    const opt_zero = 0; // 新增
    const opt_one = 1;  // 修改
    const opt_two = 2;  // 删除

    // 3. 构建操作类型映射
    public static $opMapping = [
        self::opt_zero => 'C',
        self::opt_one  => 'U',
        self::opt_two  => 'D',
    ];

    const status_zero = 0;
    const status_one = 1;
    const status_two = 2;
}