多表关联问题

现在的业务逻辑是 查询成交订单的客户信息时 会关联这个客户的订单(orders 一对多) ，客户信息（customer一对一的反向），分组信息和订单信息（一对多） ，其中订单模型2个一对多的反向 用户(user)和购买的产品信息(product),
我想在关联查询订单的时候能不能直接带出来订单的关联数据 不用下面的foreach 该如何操作呢

    {
        $limit = request('limit')?:15;
        $data = $customerService->Upper($this->user->team_group_id)->paginate($limit);
        $data->load('customer','teamGroup','orders');
        if($data->isEmpty())
        {
            return $this->msg([],"03","并没有搜索到");
        }
        //return new CustomerServiceCollection($data);
        $data = $data->toArray();
        foreach ($data['data'] as &$d){
            $d['total_price'] = Order::where('customer_id',$d['customer_id'])->sum('price');
            $d['first_order'] = Order::where('customer_id',$d['customer_id'])->orderBy('id','asc')->value('collect_date');
            foreach ($d['orders'] as &$dd){
                $dd['user'] = Order::find($dd['id'])->user;
                $dd['product'] = Order::find($dd['id'])->product;
            }
        }
        $ename = request('ename');
        
        //条件筛选
        return $this->msg($data);
    }