xinyi_admin/application/common/model/NoticeModel.php

<?php
namespace app\common\model;
/**
 * 公告信息表
 * Class NoticeModel
 * @package app\common\model
 */

class NoticeModel extends BaseModel
{
    protected $table = 'notice';

    public function getNoticePage($page,$pageSize,$condition=[],$is_count = false,$order=''){
        $join=[
            ['admin admin','admin.admin_id=notice.admin_id','LEFT'],
        ];
        $this->alias('notice')
            ->field('notice.*,admin.admin_name')
            ->join($join);


        if($condition){
            $this->where($condition);
        }
        if($is_count){
            return $this->count();
        }
        if($order){
            $this->order($order);
        }

        return $this->page($page,$pageSize)->select();
    }
}