crm/app/model/ActivityMaterial.php

<?php

namespace app\model;

use think\Model;

class ActivityMaterial extends Model
{
    public function getUrlAttr($value)
    {
        if (empty($value)) return $value;
        $ali_oss_bindurl = config('app.ali_oss_bindurl');
        $url = 'https://' . $ali_oss_bindurl . '/' . $value;
        return $url;
    }
    public function getAddtimeAttr($value)
    {
        if (empty($value)) return '';
        return date('Y-m-d H:i:s');
    }
}