point_mall_card/application/common/model/Advert.php

<?php
namespace app\common\model;
use think\Model;

class Advert extends Model{

	public function position(){
		return $this->belongsTo('AdvertPos','pos_id');
	}

	public function getFullPathAttr($value,$data){
		$value = $data['path'];
		if (!empty($value)) {
			return  request()->domain().$value;
		}
		return $value;
	}

}