def checkout(request):
"""
Display the order form and handle processing of each step.
"""
# Do the authentication check here rather than using standard login_required
# decorator. This means we can check for a custom LOGIN_URL and fall back
# to our own login view.
if settings.SHOP_CHECKOUT_ACCOUNT_REQUIRED and \
not request.user.is_authenticated():
return HttpResponseRedirect("%s?next=%s" % (settings.SHOP_LOGIN_URL,
reverse("shop_checkout")))
step = int(request.POST.get("step", CHECKOUT_STEP_FIRST))
initial = initial_order_data(request)
form = OrderForm(request, step, initial=initial)
data = request.POST
if request.POST.get("back") is not None:
step -= 1
form = OrderForm(request, step, initial=initial)
elif request.method == "POST":
form = OrderForm(request, step, initial=initial, data=data)
if form.is_valid():
checkout_errors = []
request.session["order"] = dict(form.cleaned_data)
for field in ("card_number", "card_expiry_month",
"card_expiry_year", "card_ccv"):
del request.session["order"][field]
# Handle shipping and discount code on first step.
if step == CHECKOUT_STEP_FIRST:
try:
billing_shipping(request, form)
except CheckoutError, e:
checkout_errors.append(e)
if hasattr(form, "discount"):
cart = Cart.objects.from_request(request)
discount_total = discount.calculate(cart.total_price())
request.session["free_shipping"] = discount.free_shipping
request.session["discount_total"] = discount_total
# Process order on final step.
if step == CHECKOUT_STEP_LAST and not checkout_errors:
try:
payment(request, form)
except CheckoutError, e:
checkout_errors.append(e)
if settings.SHOP_CHECKOUT_STEPS_CONFIRMATION:
step -= 1
else:
order = form.save(commit=False)
order.process(request)
send_order_email(request, order)
response = HttpResponseRedirect(reverse("shop_complete"))
if form.cleaned_data.get("remember") is not None:
remembered = "%s:%s" % (sign(order.key), order.key)
set_cookie(response, "remember", remembered,
secure=request.is_secure())
else:
response.delete_cookie("remember")
return response
# Assign checkout errors to new form if any and re-run is_valid
# if valid set form to next step.
form = OrderForm(request, step, initial=initial, data=data,
checkout_errors=checkout_errors)
if form.is_valid():
step += 1
form = OrderForm(request, step, initial=initial)
def checkout_steps(request):
"""
Display the order form and handle processing of each step.
"""
# Do the authentication check here rather than using standard
# login_required decorator. This means we can check for a custom
# LOGIN_URL and fall back to our own login view.
authenticated = request.user.is_authenticated()
if settings.SHOP_CHECKOUT_ACCOUNT_REQUIRED and not authenticated:
url = "%s?next=%s" % (settings.LOGIN_URL, reverse("shop_checkout"))
return HttpResponseRedirect(url)
step = int(request.POST.get("step", checkout.CHECKOUT_STEP_FIRST))
initial = checkout.initial_order_data(request)
form = OrderForm(request, step, initial=initial)
data = request.POST
checkout_errors = []
if request.POST.get("back") is not None:
# Back button in the form was pressed - load the order form
# for the previous step and maintain the field values entered.
step -= 1
form = OrderForm(request, step, initial=initial)
elif request.method == "POST":
form = OrderForm(request, step, initial=initial, data=data)
if form.is_valid():
# Copy the current form fields to the session so that
# they're maintained if the customer leaves the checkout
# process, but remove sensitive fields from the session
# such as the credit card fields so that they're never
# stored anywhere.
request.session["order"] = dict(form.cleaned_data)
sensitive_card_fields = ("card_number", "card_expiry_month",
"card_expiry_year", "card_ccv")
for field in sensitive_card_fields:
del request.session["order"][field]
# FIRST CHECKOUT STEP - handle shipping and discount code.
if step == checkout.CHECKOUT_STEP_FIRST:
try:
billship_handler(request, form)
except checkout.CheckoutError, e:
checkout_errors.append(e)
form.set_discount()
# FINAL CHECKOUT STEP - handle payment and process order.
if step == checkout.CHECKOUT_STEP_LAST and not checkout_errors:
# Create and save the inital order object so that
# the payment handler has access to all of the order
# fields. If there is a payment error then delete the
# order, otherwise remove the cart items from stock
# and send the order reciept email.
order = form.save(commit=False)
order.setup(request)
# Try payment.
try:
payment_handler(request, form, order)
except checkout.CheckoutError, e:
# Error in payment handler.
order.delete()
checkout_errors.append(e)
if settings.SHOP_CHECKOUT_STEPS_CONFIRMATION:
step -= 1
else:
# Finalize order - ``order.complete()`` performs
# final cleanup of session and cart.
# ``order_handler()`` can be defined by the
# developer to implement custom order processing.
# Then send the order email to the customer.
order.complete(request)
order_handler(request, form, order)
checkout.send_order_email(request, order)
# Set the cookie for remembering address details
# if the "remember" checkbox was checked.
response = HttpResponseRedirect(reverse("shop_complete"))
if form.cleaned_data.get("remember") is not None:
remembered = "%s:%s" % (sign(order.key), order.key)
set_cookie(response, "remember", remembered,
secure=request.is_secure())
else:
response.delete_cookie("remember")
return response
# If any checkout errors, assign them to a new form and
# re-run is_valid. If valid, then set form to the next step.
form = OrderForm(request, step, initial=initial, data=data,
errors=checkout_errors)
if form.is_valid():
step += 1
form = OrderForm(request, step, initial=initial)
