<?php
namespace app\mobile\model;

use think\Model;

class TopicAttachment extends Model
{
	// 表名
    protected $name = 'mobile_topic_attachment';
    // 开启自动写入时间戳字段
    protected $autoWriteTimestamp = 'int';
    // 定义时间戳字段名
    protected $createTime = 'createtime';
    protected $updateTime = false;

    // 附件地址
    public function getUrlAttr($value, $data)
    {
        return !empty($value) ? cdnurl($value,true) : '';
    }
}