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Location: symposion_app/registrasion/views.py - annotation
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from registrasion import models as rego
from registrasion.controllers import discount
from registrasion.controllers.cart import CartController
from registrasion.controllers.invoice import InvoiceController
from registrasion.controllers.product import ProductController
from django.contrib.auth.decorators import login_required
from django.core.exceptions import ObjectDoesNotExist
from django.core.exceptions import ValidationError
from django.db import transaction
from django.shortcuts import redirect
from django.shortcuts import render
@login_required
def guided_registration(request, page_id=0):
''' Goes through the registration process in order,
making sure user sees all valid categories.
WORK IN PROGRESS: the finalised version of this view will allow
grouping of categories into a specific page. Currently, it just goes
through each category one by one
'''
dashboard = redirect("dashboard")
next_step = redirect("guided_registration")
attendee = rego.Attendee.get_instance(request.user)
if attendee.completed_registration:
return dashboard
# Step 1: Fill in a badge
profile = rego.BadgeAndProfile.get_instance(attendee)
if profile is None:
ret = edit_profile(request)
profile_new = rego.BadgeAndProfile.get_instance(attendee)
if profile_new is None:
# No new profile was created
return ret
else:
return next_step
# Step 2: Go through each of the categories in order
category = attendee.highest_complete_category
# Get the next category
cats = rego.Category.objects
cats = cats.filter(id__gt=category).order_by("order")
if len(cats) == 0:
# We've filled in every category
attendee.completed_registration = True
attendee.save()
return dashboard
ret = product_category(request, cats[0].id)
attendee_new = rego.Attendee.get_instance(request.user)
if attendee_new.highest_complete_category == category:
# We've not yet completed this category
return ret
else:
return next_step
@login_required
def edit_profile(request):
attendee = rego.Attendee.get_instance(request.user)
try:
profile = rego.BadgeAndProfile.objects.get(attendee=attendee)
except ObjectDoesNotExist:
profile = None
form = forms.ProfileForm(request.POST or None, instance=profile)
if request.POST and form.is_valid():
form.instance.attendee = attendee
form.save()
data = {
"form": form,
}
return render(request, "profile_form.html", data)
@login_required
def product_category(request, category_id):
''' Registration selections form for a specific category of items.
'''
PRODUCTS_FORM_PREFIX = "products"
VOUCHERS_FORM_PREFIX = "vouchers"
# Handle the voucher form *before* listing products.
# Products can change as vouchers are entered.
v = handle_voucher(request, VOUCHERS_FORM_PREFIX)
voucher_form, voucher_handled = v
category_id = int(category_id) # Routing is [0-9]+
category = rego.Category.objects.get(pk=category_id)
products = ProductController.available_products(
request.user,
category=category,
)
p = handle_products(request, category, products, PRODUCTS_FORM_PREFIX)
products_form, discounts, products_handled = p
if request.POST and not voucher_handled and not products_form.errors:
# Only return to the dashboard if we didn't add a voucher code
# and if there's no errors in the products form
attendee = rego.Attendee.get_instance(request.user)
if category_id > attendee.highest_complete_category:
attendee.highest_complete_category = category_id
attendee.save()
return redirect("dashboard")
data = {
"category": category,
"discounts": discounts,
"form": products_form,
"voucher_form": voucher_form,
}
return render(request, "product_category.html", data)
def handle_products(request, category, products, prefix):
''' Handles a products list form in the given request. Returns the
form instance, the discounts applicable to this form, and whether the
contents were handled. '''
current_cart = CartController.for_user(request.user)
ProductsForm = forms.ProductsForm(category, products)
# Create initial data for each of products in category
items = rego.ProductItem.objects.filter(
product__in=products,
cart=current_cart.cart,
)
quantities = []
for product in products:
# Only add items that are enabled.
try:
quantity = items.get(product=product).quantity
except ObjectDoesNotExist:
quantity = 0
quantities.append((product, quantity))
products_form = ProductsForm(
request.POST or None,
product_quantities=quantities,
prefix=prefix,
)
if request.method == "POST" and products_form.is_valid():
try:
if products_form.has_changed():
set_quantities_from_products_form(products_form, current_cart)
except ValidationError:
# There were errors, but they've already been added to the form.
pass
# If category is required, the user must have at least one
# in an active+valid cart
if category.required:
carts = rego.Cart.objects.filter(user=request.user)
items = rego.ProductItem.objects.filter(
product__category=category,
cart=carts,
)
if len(items) == 0:
products_form.add_error(
None,
"You must have at least one item from this category",
)
handled = False if products_form.errors else True
discounts = discount.available_discounts(request.user, [], products)
return products_form, discounts, handled
@transaction.atomic
def set_quantities_from_products_form(products_form, current_cart):
for product_id, quantity, field_name in products_form.product_quantities():
product = rego.Product.objects.get(pk=product_id)
try:
current_cart.set_quantity(product, quantity, batched=True)
except ValidationError as ve:
products_form.add_error(field_name, ve)
if products_form.errors:
raise ValidationError("Cannot add that stuff")
current_cart.end_batch()
def handle_voucher(request, prefix):
''' Handles a voucher form in the given request. Returns the voucher
form instance, and whether the voucher code was handled. '''
voucher_form = forms.VoucherForm(request.POST or None, prefix=prefix)
current_cart = CartController.for_user(request.user)
if (voucher_form.is_valid() and
voucher_form.cleaned_data["voucher"].strip()):
voucher = voucher_form.cleaned_data["voucher"]
voucher = rego.Voucher.normalise_code(voucher)
if len(current_cart.cart.vouchers.filter(code=voucher)) > 0:
# This voucher has already been applied to this cart.
# Do not apply code
handled = False
else:
try:
current_cart.apply_voucher(voucher)
except Exception as e:
voucher_form.add_error("voucher", e)
handled = True
else:
handled = False
return (voucher_form, handled)
@login_required
def checkout(request):
''' Runs checkout for the current cart of items, ideally generating an
invoice. '''
current_cart = CartController.for_user(request.user)
current_invoice = InvoiceController.for_cart(current_cart.cart)
return redirect("invoice", current_invoice.invoice.id)
@login_required
def invoice(request, invoice_id):
''' Displays an invoice for a given invoice id. '''
invoice_id = int(invoice_id)
inv = rego.Invoice.objects.get(pk=invoice_id)
current_invoice = InvoiceController(inv)
data = {
"invoice": current_invoice.invoice,
}
return render(request, "invoice.html", data)
@login_required
def pay_invoice(request, invoice_id):
''' Marks the invoice with the given invoice id as paid.
WORK IN PROGRESS FUNCTION. Must be replaced with real payment workflow.
'''
invoice_id = int(invoice_id)
inv = rego.Invoice.objects.get(pk=invoice_id)
current_invoice = InvoiceController(inv)
if not inv.paid and current_invoice.is_valid():
current_invoice.pay("Demo invoice payment", inv.value)
return redirect("invoice", current_invoice.invoice.id)
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