idsci/application/admin/model/cms/Conference.php

<?php

namespace app\admin\model\cms;

use think\Model;

class Conference extends Model
{
    // 表名
    protected $name = 'cms_conference';

    // 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 = 'updatetime';

    public function user()
    {
        return $this->belongsTo("\app\common\model\User", 'user_id', 'id', [], 'LEFT')->setEagerlyType(0);
    }
}