I am trying to make an order with symfony but it doesn’t work as it should. I also let a few of my co-workers look at it but they also didn’t know how to fix it. Can somebody please help me out.

I tried to make an order but for some reason it gives me a blank screen.

trying to make an order with symfony but it doesn’t work

this is the part that serves for putting an item in my shoppingcart:

 #[Route('/makeorder/{id}', name: 'app_makeorder')]
    public function makeOrder(EntityManagerInterface $em, Request $request, int $id): Response
    {
       $product = $em->getRepository(Product::class)->find($id);
       $form = $this->createFormBuilder()
           ->add('amount', IntegerType::class, [
               'required' => true,
               'data' => 1,
               'label' => 'aantal'
           ])
           ->add('Opslaan', SubmitType::class)
           ->getForm();

       $session = $request->getSession();
       $form->handleRequest($request);
       if($form->isSubmitted()) {
           if(!$session->get('order')) {
               $session->set('order', []);
           }
           $amount = $form->get('amount')->getData();
           $order=$session->get('order');
           $order[]=[$id, $amount];
           $session->set('order', $order);

           $this->addFlash('succes', 'product toegevoegd');
           return $this->redirectToRoute('app_winkelwagen');
       }
       return $this->render('winkelwagen/order.html.twig', [
           'product' => $product,
           'form' => $form
       ]);

twig file that belongs to above symfony code for putting an item in the shoppingcart:

    <div class="card">
                        <img src="{{ product.image }}" class="card-img-top" alt="product">
                        <div class="card-body">
                            <h5 class="card-title"> {{ product.name }}</h5>
                            <p class="card-text">  {{ product.description }}</p>
                            <p class="card-text">  {{ product.price }}</p>
                           {{ form(form) }}
                        </div>
                    </div>

this is the code that shows the items in the shopping cart:

    #[Route('/show/winkelwagen',name:'show_winkelwagen')]
    public function showWinkelwagen(EntityManagerInterface $em,Request $request)
    {
        $order=$request->getSession()->get('order');
        if(!$order) {
            $this->addFlash('danger','Je hebt geen producten');
            return $this->redirectToRoute('app_winkelwagen');
        }

        $orderlinesLines=[];
        foreach ($order as $line) {
            $orderLine=new OrderLine();
            $product=$em->getRepository(Product::class)->find($line[0]);
            $orderLine->setProduct($product);
            $orderLine->setAmount($line[1]);
            $orderLines[]=$orderLine;
        }
        return $this->render('winkelwagen/winkelwagen.html.twig',[
            'orderLines'=>$orderLines,
        ]);
    }

twig file that belongs to above symfony code for showing the items in the shopping cart:

     {% for line in orderLines %}

                <div class="card">
                    <img src="..." class="card-img-top" alt="...">
                    <div class="card-body">
                        <h5 class="card-title"> {{ line.product.name }}</h5>
                        <p class="card-text">  {{ line.product.description }}</p>
                        <p class="card-text">  {{ line.product.price }}</p>
                        <h4>{{ line.amount }}</h4>
                    </div>
                </div>

                {% endfor %}
                <a class="btn btn-danger" href="{{ path('clear_winkelwagen') }}">leeg winkelwagen</a>
                <a class="btn btn-success" href="{{ path('order_winkelwagen')}}">bestel</a>

this is the code that clears the entire shoppingcart:

    #[Route('/clear/winkelwagen',name:'clear_winkelwagen')]
    public function clearWinkelwagen(EntityManagerInterface $em,Request $request): Response
    {
        $order=$request->getSession()->get('order');
        if($order) {
            $request->getSession('order')->clear();
            $this->addFlash('danger','winkelwagen leeg!');

        }
        return $this->redirectToRoute('app_winkelwagen');
    }

this is the code that lets you order the items in the shoppingcart:

 #[Route('/order/winkelwagen',name:'order_winkelwagen')]
    public function orderWinkelwagen(EntityManagerInterface $em,Request $request):Response
    {
        $product=$request->getSession()->get('order');
        if(!$product) {
            $this->addFlash('danger','Je hebt geen producten');
            return $this->redirectToRoute('app_order');
        }
        $order=new Order();
        $order->setDate(new DateTime('now'));
        $order->setStatus('In behandeling');

        foreach ($product as $line) {
            $orderLine=new OrderLine();
            $product=$em->getRepository(Product::class)->find($line[0]);
            $orderLine->setProduct($product);
            $orderLine->setAmount($line[1]);
            $orderLine->setPurchase($order);
            $em->persist($orderLine);
        }

        $em->persist($order);
        $em->flush();
        $request->getSession('order')->clear();
        $this->addFlash('success','De bestelling is voltooid');
        return $this->redirectToRoute('app_winkelwagen');

    }