<a href="{{ path('change_order_status', { id : NewOrder.id }) }}" class="btn btn-primary">受注ステータスを変更</a>

<?php

namespace Plugin\PushNotifyOrder\Controller\Admin;

use Eccube\Controller\AbstractController;
use Eccube\Entity\ItemHolderInterface;
use Eccube\Entity\Master\OrderStatus;
use Eccube\Entity\Order;
use Eccube\Repository\Master\OrderStatusRepository;
use Eccube\Service\PurchaseFlow\PurchaseContext;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Annotation\Route;

class NewOrderStatusController extends AbstractController
{
    /**
     * @var OrderStatusRepository
     */
    private $orderStatusRepository;

    /**
     * NewOrderStatusController constructor.
     *
     * @param OrderStatusRepository $orderStatusRepository
     */
    public function __construct(OrderStatusRepository $orderStatusRepository)
    {
        $this->orderStatusRepository = $orderStatusRepository;
    }


    /**
     * @param Order $target
     *
     * @Route("/%eccube_admin_route%/order", name="change_order_status")
     */
    public function changeOrderStatus(Order $target)
    {
        echo dump($target);
        if (!$target instanceof Order) {
         echo "失敗";
         return new Response();
        }
        $OrderStatus = $this->orderStatusRepository->find(OrderStatus::IN_PROGRESS);
        $target->setOrderStatus($OrderStatus);
        $target->setOrderDate(new \DateTime());

        return new Response();
    }
}