thinkphp实现多个子查询语句

SELECT a.*,b.* from (SELECT a.id as opener_id,a.name,sum(c.money) as bonus_money,c.year,c.month from sh_opener a

LEFT JOIN sh_opener_bonus b on a.id = b.opener_id

LEFT JOIN sh_incentive c on b.incentive_id = c.id

where a.agent_id =  and a.status =  and c.year =  and c.month =

GROUP BY a.id,c.year,c.month) a

LEFT JOIN (SELECT a.id as payment_id,a.opener_id,a.money as payment_money,a.trode_number from sh_opener_bonus_payment a

where a.year =  and a.`month` =  and a.agent_id = ) b

on a.opener_id = b.opener_id;

$useYear = date('Y',strtotime('last month'));

        $this->assign('useYear',$useYear);

        $useMonth = date('m',strtotime('last month'));

        $this->assign('useMonth',$useMonth);

        // 获取上一月人员的奖金金额

        // 子查询1

        $whereSub1['a.agent_id'] = $this->agent_id;

        $whereSub1['a.status'] = ;

        $whereSub1['c.year'] = $useYear;

        $whereSub1['c.month'] = $useMonth;

        $subQuery1 = M()->table('sh_opener a')->join('sh_opener_bonus b on a.id = b.opener_id')->join('sh_incentive c on b.incentive_id = c.id')->where($whereSub1)->group('a.id,c.year,c.month')->field('a.id,a.name,sum(c.money) as bonus_money,c.year,c.month')->select(false); 

        // 子查询2

        $whereSub2['a.agent_id'] = $this->agent_id;

        $whereSub2['a.year'] = $useYear;

        $whereSub2['a.month'] = $useMonth;

        $subQuery2 = M()->table('sh_opener_bonus_payment a')->where($whereSub2)->field('a.id as payment_id,a.opener_id,a.money as payment_money,a.trode_number')->select(false);

        $list = M()->table($subQuery1.' a')->join($subQuery2.' b on a.id = b.opener_id')->select();

        $this->assign('list',$list);