Ajax Layer about sylius HOT 5 CLOSED

sylius_cart_item_add:
    pattern: /add
    defaults: { _controller: sylius.controller.cart_item:addAction, type: notAjax }

dp_ajax_add:
    pattern: /ajax/add
    defaults: { _controller: sylius.controller.cart_item:addAction, type: ajax }

public function addAction(Request $request, $type)
{
    $cart = $this->getCurrentCart();
    $emptyItem = $this->createNew();

    if ($type=="ajax") // this is the altered part, basically replacing flash messages with json response
    {
        try {
            $item = $this->getResolver()->resolve($emptyItem, $request);
        } catch (ItemResolvingException $exception) {    
            $return='{"responseCode" : "400", "message" : "'.$exception->getMessage().'"}';
            return new Response($return,200,array('Content-Type'=>'application/json'));
        }

        $event = new CartItemEvent($cart, $item);
        $event->isFresh(true);
        $event->isValid(false);

        // Update models
        $this->dispatchEvent(SyliusCartEvents::ITEM_ADD_INITIALIZE, $event);
        $this->dispatchEvent(SyliusCartEvents::CART_SAVE_INITIALIZE, $event);

        // Write flash message
        // $this->dispatchEvent(SyliusCartEvents::ITEM_ADD_COMPLETED, new FlashEvent());

        $ajaxCart = $this->renderView('SyliusWebBundle:Frontend/Cart:ajaxCart.html.twig', array(
            'cart' => $cart
        ));

        $return='{"responseCode" : "200", "message" : "ok", "ajaxCart" : '.json_encode($ajaxCart).'}';        

        return new Response($return,200,array('Content-Type'=>'application/json'));
    }
    else // unaltered part of the original action
    {
        try {
            $item = $this->getResolver()->resolve($emptyItem, $request);
        } catch (ItemResolvingException $exception) {
            // Write flash message
            $this->dispatchEvent(SyliusCartEvents::ITEM_ADD_ERROR, new FlashEvent($exception->getMessage()));

            return $this->redirectToCartSummary();
        }

        $event = new CartItemEvent($cart, $item);
        $event->isFresh(true);
        $event->isValid(false);

        // Update models
        $this->dispatchEvent(SyliusCartEvents::ITEM_ADD_INITIALIZE, $event);
        $this->dispatchEvent(SyliusCartEvents::CART_SAVE_INITIALIZE, $event);

        // Write flash message
        $this->dispatchEvent(SyliusCartEvents::ITEM_ADD_COMPLETED, new FlashEvent());

        return $this->redirectToCartSummary();
    }
}