crm/app/model/ActivitySign.php

<?php

namespace app\model;

use think\Model;

class ActivitySign extends Model
{
    /**
     * 二维码地址
     */
    public function getQrcodeAttr($value)
    {
        if (empty($value)) return $value;
        $ali_oss_bindurl = config('app.ali_oss_bindurl');
        $url = 'http://' . $ali_oss_bindurl . '/' . $value;
        return $url;
    }

    /**
     * 客户信息
     */
    public function user()
    {
        return $this->belongsTo(User::class, 'uid','id');
    }
    /**
     * 活动信息
     */
    public function activity()
    {
        return $this->belongsTo(Activity::class, 'aid','id');
    }
    /**
     * 业务员信息
     */
    public function employee()
    {
        return $this->belongsTo(Employee::class, 'share_employee_id','id');
    }
}