myc/app/common/dao/store/shipping/CityDao.php

<?php



namespace app\common\dao\store\shipping;

use app\common\dao\BaseDao;
use app\common\model\store\shipping\City as model;

class CityDao  extends BaseDao
{
    protected function getModel(): string
    {
        return model::class;
    }

    public function getAll(array $where)
    {
        return ($this->getModel()::getDB())->where($where)
            ->order('city_id ASC')->field('city_id,name,merger_name,parent_id,level')->select();
    }
}