Завершение заказа?

Question

[Ramplin]

Подскажите пожалуйста как сделать, чтоб при покупке товара очищалась корзина. И еще есть проблема в том, что без переавторизации не могу сделать больше 1 заказа (кидает на завершение покупки прошлого товара)
Суть работы: после нажатия кнопки checkout товар отправляется в заказы и следующее поле заполнение адреса, после адреса вылезает конечная форма, где указано сколько и чего купили (cюда вот и кидает при следующем заказе)

корзина с товарами:

{% extends "base.html" %}


{% block content %}
<h1>Cart</h1>

{% if cart.products.exists %}
<table class="table cart-table">
  <thead>
    <tr>
      <th>#</th>
      <th>Название: </th>
      <th>Цена: </th>
    </tr>
  </thead>
  <tbody class='cart-body'>
    {% for product in cart.products.all %}
    <tr class='cart-product'>
      <th scope="row">{{ forloop.counter }}</th>
      <td><a href='{{ product.get_absolute_url }}'>{{ product.title }}</a> 
        {% include 'carts/snippets/remove-product.html' with product_id=product.id %}
      </td>
      <td>{{ product.price }}</td>
    </tr>
    {% endfor %}
    <tr>
      <td colspan="2"></td>
      <td><b>Subtotal</b> $<span class='cart-subtotal'>{{ cart.subtotal }}</span></td>
    </tr>
    <tr>
      <td colspan="2"></td>
      <td><b>Total</b> $<span class='cart-total'>{{ cart.total }}</span></td>
    </tr>
    <tr>
      <td colspan="2"></td>
      <td><a class='btn btn-lg btn-success' href='{% url "cart:checkout" %}'>Checkout</a></td>
    </tr>

  </tbody>
</table>

<div class='cart-item-remove-form' style='display:none'>

    {% include 'carts/snippets/remove-product.html' %}
  </div>

{% else %}
<p class='lead'>Корзина пуста</p>
{% endif %}


{% endblock %}

urls.py:

url(r'^$', cart_home, name='home'),
    url(r'^checkout/success/$', checkout_done_view, name='success'),
    url(r'^checkout/$', checkout_home, name='checkout'),
    url(r'^update/$', cart_update, name='update'),

views.py:

def checkout_home(request):
    cart_obj, cart_created = Cart.objects.new_or_get(request)
    order_obj = None
    if cart_created or cart_obj.products.count() == 0:
        return redirect("cart:home")

    login_form = LoginForm(request=request)
    guest_form = GuestForm(request=request)
    address_form = AddressCheckoutForm()
    # billing_address_id = request.session.get("billing_address_id", None)
    shipping_address_id = request.session.get("shipping_address_id", None)

    billing_profile, billing_profile_created = BillingProfile.objects.new_or_get(request)
    address_qs = None
    # has_card = False
    if billing_profile is not None:
        if request.user.is_authenticated():
            address_qs = Address.objects.filter(billing_profile=billing_profile)
        order_obj, order_obj_created = Order.objects.new_or_get(billing_profile, cart_obj)
        if shipping_address_id:
            order_obj.shipping_address = Address.objects.get(id=shipping_address_id)
            del request.session["shipping_address_id"]
        if shipping_address_id:
            order_obj.save()
        # has_card = billing_profile.has_card

    if request.method == "POST":
        "проверьте, что заказ выполнен"
        is_prepared = order_obj.check_done()
        if is_prepared:
            did_charge, crg_msg = billing_profile.charge(order_obj)
            if did_charge:
                order_obj.mark_paid()
                request.session['cart_items'] = 0
                del request.session['cart_id']
                if not billing_profile.user:
                    '''
                    is this the best spot?
                    '''
                    billing_profile.set_cards_inactive()
                return redirect("cart:success")
            else:
                print(crg_msg)
                return redirect("cart:checkout")
    context = {
        "object": order_obj,
        "billing_profile": billing_profile,
        "login_form": login_form,
        "guest_form": guest_form,
        "address_form": address_form,
        "address_qs": address_qs,
        # "has_card": has_card,
        "publish_key": STRIPE_PUB_KEY,
    }
    return render(request, "carts/checkout.html", context)

форма адреса и вывод информации о заказе:

{% if not billing_profile %}
    <div class='row text-center'>
    <div class='col-12 col-md-6'>
        <p class='lead'>Вход</p>
        {% include 'accounts/snippets/form.html' with form=login_form next_url=request.build_absolute_uri %}
    </div>
    <div class='col-12 col-md-6'>
        Продолжить как Гость

        {% url "guest_register" as guest_register_url %}
        {% include 'accounts/snippets/form.html' with form=guest_form next_url=request.build_absolute_uri action_url=guest_register_url %}
    </div>

    </div>

{% else %}

        {% if not object.shipping_address %}

         <div class='row'>
            <div class='col-md-10'>
                <p class='lead'>Адрес доставки</p>
                <hr/>
            </div>

            <div class='col-md-5'>




                    {% url "checkout_address_create" as checkout_address_create %}
                    {% include 'addresses/form.html' with form=address_form next_url=request.build_absolute_uri action_url=checkout_address_create address_type='shipping' %}



             </div>
         <div class='col-md-5'>
            {% url 'checkout_address_reuse' as checkout_address_reuse %}
            {% include 'addresses/prev_addresses.html' with address_qs=address_qs next_url=request.build_absolute_uri address_type='shipping' action_url=checkout_address_reuse %}
            </div>
        </div>



        {% else %}

                <h1>Завершить Оформление Заказа</h1>
                <p>Детали карты: {% for product in object.cart.products.all %}{{ product }}{% if not forloop.last %}, {% endif %}{% endfor %}</p>
                <p>Адрес доставки: {{ object.shipping_address.get_address }}</p>
                <p>Платежный адрес: {{ object.shipping_address.get_address }}</p>
                <p>Способ оплаты: {{ billing_profile.default_card }} (<a href="{{ billing_profile.get_payment_method_url }}?next={{ request.build_absolute_uri }}">Change</a>)</p>
                <p>Корзина Всего: {{ object.cart.total }}</p>
                <p>Итог Доставки: {{ object.shipping_total }}</p>
                <p>Итог Заказа: {{ object.total }}</p>

                <form class='form' method='POST' action="">{% csrf_token %}
                    <button type='submit' class='btn btn-success'>Заказать</button>
                </form>


        {% endif %}
{% endif %}