public static Customer addOrdersFromDB(Customer c) {
   Customer newCustomer = new Customer(c.getID());
   List<Order> orders = orderDAO.retrieveOrders(c);
   for (Order o : orders) {
     newCustomer.addOrder(o);
   }
   return newCustomer;
 }
  private void loadCustomers() {
    Customer a = new Customer("aaa", "900724-1111", "A-Gatan", "0702-AAA");
    reg.addCustomer(a);

    Order gg = new Order(a, "11111");
    a.addOrder(gg);
    reg.addOrder(gg);

    Customer b = new Customer("bbb", "900724-2222", "B-Gatan", "0702-BBB");
    reg.addCustomer(b);

    Customer c = new Customer("ccc", "900724-3333", "C-Gatan", "0702-CCC");
    reg.addCustomer(c);
  }
 public static void addOrderToDB(Order o) {
   Customer customer = CustomerServiceImpl.getCustomer(o.getCustomerID());
   customer.setOrders(OrderServiceImpl.retrieveUnpaidOrders(customer));
   customer.addOrder(o);
   if (customer.getOrders().contains(o)) {
     orderDAO.addOrder(o);
     List<OrderItem> items = o.getItems();
     Inventory inventory = new Inventory(InventoryServiceImpl.getAllAvailableProductsInDB());
     for (OrderItem i : items) {
       Product product = ProductServiceImpl.getProduct(i.getItemSKUNumber());
       InventoryItem inventoryitem = InventoryServiceImpl.getInventoryItem(inventory, product);
       InventoryServiceImpl.deductFromInventory(inventory, inventoryitem, i.getQuantity());
     }
   }
 }