@SuppressWarnings("unchecked") @ResponseBody @RequestMapping(value = "/order/updateItemQuantity.ajax", method = RequestMethod.POST) public ResponseEntity<byte[]> updateItemQuantity( HttpServletRequest request, @RequestParam(value = "body") String body) throws Exception { if (LOGGER.isDebugEnabled()) { LOGGER.debug("Updating order items: " + body); } Map<String, Object> model = new HashMap<String, Object>(); try { // Extract request parameters Map<String, Object> params = (Map<String, Object>) jsonUtils.deserialize(body); String orderItemId = (String) params.get("orderItemId"); Integer quantity = (Integer) params.get("quantity"); HttpSession session = request.getSession(true); String orderId = (String) session.getAttribute("orderid"); Order order = null; if (orderId != null) { order = orderRepository.findByOrderId(orderId); if (order != null) { order.updateItemQuantity(orderItemId, quantity); order = orderRepository.saveOrder(order); // Update can checkout status of order session.setAttribute("cancheckout", order.getCanCheckout()); // Update order restaurant id session attribute if any items present if (order.getOrderItems().size() > 0) { session.setAttribute("orderrestaurantid", order.getRestaurantId()); session.setAttribute("orderrestauranturl", order.getRestaurant().getUrl()); } else { // If the restaurant session id does not match the order restaurant id, update the order String restaurantId = (String) session.getAttribute("restaurantid"); if (!order.getRestaurantId().equals(restaurantId)) { Restaurant restaurant = restaurantRepository.findByRestaurantId(restaurantId); order.setRestaurant(restaurant); order = orderRepository.save(order); } session.removeAttribute("orderrestaurantid"); session.removeAttribute("orderrestauranturl"); } } } model.put("success", true); model.put("order", order); } catch (Exception ex) { LOGGER.error("", ex); model.put("success", false); model.put("message", ex.getMessage()); } return buildOrderResponse(model); }