def update_cart(request):
order = Order()
if request.method == 'POST':
cart = request.session.get('cart', list())
if len(cart) == 0:
return HttpResponseRedirect(reverse(update_cart))
sub_total = order.calc_sub_total(cart)
shipping_cost = order.calc_ship_cost(cart)
total = order.calc_total(cart)
formset = OrderItemFormSet(data=request.POST, init_instances=cart)
if formset.is_valid():
cart = list()
for form in formset.forms:
try:
if not form.cleaned_data['DELETE']:
order_item = form.instance
order_item.quantity = form.cleaned_data['quantity']
if order_item.quantity > 0:
cart.append(order_item)
except AttributeError:
pass
request.session['cart'] = cart
return HttpResponseRedirect(reverse(update_cart))
else:
cart = request.session.get('cart', list())
sub_total = order.calc_sub_total(cart)
shipping_cost = order.calc_ship_cost(cart)
total = order.calc_total(cart)
formset = OrderItemFormSet(init_instances=cart)
return render_to_response('simple_orders/cart.html', {'shipping_cost': shipping_cost, 'total': total, 'cart_formset': formset, 'sub_total': sub_total}, context_instance = RequestContext(request))
def checkout(request):
order = Order()
if request.method == 'POST':
cart = request.session.get('cart', list())
if len(cart) == 0:
return HttpResponseRedirect(reverse(checkout))
form = OrderForm(request.POST)
order_items = request.session['cart']
shipping_cost = order.calc_ship_cost(request.session['cart'])
sub_total = order.calc_sub_total(cart)
total = order.calc_total(request.session['cart'])
if form.is_valid():
if request.user.is_authenticated():
order = form.save(commit=False)
order.user = request.user
order.save()
else:
order = form.save()
for order_item in request.session['cart']:
order_item.order = order
order_item.save()
request.session['cart'] = list()
request.session['order'] = order
return HttpResponseRedirect(reverse(order_confirm))
else:
cart = request.session.get('cart', list())
form = OrderForm()
order_items = cart
shipping_cost = order.calc_ship_cost(cart)
sub_total = order.calc_sub_total(cart)
total = order.calc_total(cart)
return render_to_response('simple_orders/checkout.html', {'order_form': form, 'order_items': order_items, 'shipping_cost': shipping_cost, 'total': total, 'sub_total': sub_total}, context_instance = RequestContext(request))