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