tp6一对多 with 添加where 和统计长度、统计订单金额

public function getList($merch_id){
    $page = input('page')?:1;
    $limit = input('limit')?:20;
    $where = [];
    $where['merch_id'] = $merch_id;

    $data = $this
            ->with(
                [
                    'member' => function ($query){
                        $query->withSum('order','real_pay')->withCount('order');
                    },
                    'tages'
                ]
            )
            ->hasWhere('member', function($query) {
                $query->where('nickname', 'like', "%".input('keyword')."%")->whereOr('mobile', 'like', "%".input('keyword')."%");
            })
            ->where($where)
            ->paginate($limit);
    return $data;
}