902 lines
28 KiB
Python
902 lines
28 KiB
Python
import sys
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from registrasion import forms
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from registrasion import util
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from registrasion.models import commerce
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from registrasion.models import inventory
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from registrasion.models import people
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from registrasion.controllers.batch import BatchController
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from registrasion.controllers.cart import CartController
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from registrasion.controllers.credit_note import CreditNoteController
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from registrasion.controllers.discount import DiscountController
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from registrasion.controllers.invoice import InvoiceController
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from registrasion.controllers.item import ItemController
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from registrasion.controllers.product import ProductController
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from registrasion.exceptions import CartValidationError
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from collections import namedtuple
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from django.conf import settings
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from django.contrib.auth.decorators import login_required
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from django.contrib.auth.decorators import user_passes_test
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from django.contrib.auth.models import User
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from django.contrib import messages
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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.http import Http404
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from django.shortcuts import redirect
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from django.shortcuts import render
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_GuidedRegistrationSection = namedtuple(
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"GuidedRegistrationSection",
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(
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"title",
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"discounts",
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"description",
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"form",
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)
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)
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@util.all_arguments_optional
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class GuidedRegistrationSection(_GuidedRegistrationSection):
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''' Represents a section of a guided registration page.
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Attributes:
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title (str): The title of the section.
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discounts ([registrasion.contollers.discount.DiscountAndQuantity, ...]):
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A list of discount objects that are available in the section. You
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can display ``.clause`` to show what the discount applies to, and
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``.quantity`` to display the number of times that discount can be
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applied.
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description (str): A description of the section.
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form (forms.Form): A form to display.
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'''
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pass
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def get_form(name):
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dot = name.rindex(".")
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mod_name, form_name = name[:dot], name[dot + 1:]
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__import__(mod_name)
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return getattr(sys.modules[mod_name], form_name)
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@login_required
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def guided_registration(request):
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''' Goes through the registration process in order, making sure user sees
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all valid categories.
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The user must be logged in to see this view.
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Returns:
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render: Renders ``registrasion/guided_registration.html``,
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with the following data::
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{
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"current_step": int(), # The current step in the
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# registration
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"sections": sections, # A list of
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# GuidedRegistrationSections
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"title": str(), # The title of the page
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"total_steps": int(), # The total number of steps
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}
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'''
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SESSION_KEY = "guided_registration_categories"
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ASK_FOR_PROFILE = 777 # Magic number. Meh.
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next_step = redirect("guided_registration")
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sections = []
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attendee = people.Attendee.get_instance(request.user)
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if attendee.completed_registration:
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return redirect(review)
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# Step 1: Fill in a badge and collect a voucher code
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try:
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profile = attendee.attendeeprofilebase
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except ObjectDoesNotExist:
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profile = None
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# Figure out if we need to show the profile form and the voucher form
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show_profile_and_voucher = False
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if SESSION_KEY not in request.session:
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if not profile:
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show_profile_and_voucher = True
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else:
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if request.session[SESSION_KEY] == ASK_FOR_PROFILE:
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show_profile_and_voucher = True
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if show_profile_and_voucher:
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# Keep asking for the profile until everything passes.
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request.session[SESSION_KEY] = ASK_FOR_PROFILE
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voucher_form, voucher_handled = _handle_voucher(request, "voucher")
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profile_form, profile_handled = _handle_profile(request, "profile")
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voucher_section = GuidedRegistrationSection(
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title="Voucher Code",
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form=voucher_form,
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)
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profile_section = GuidedRegistrationSection(
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title="Profile and Personal Information",
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form=profile_form,
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)
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title = "Attendee information"
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current_step = 1
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sections.append(voucher_section)
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sections.append(profile_section)
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else:
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# We're selling products
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starting = attendee.guided_categories_complete.count() == 0
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# Get the next category
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cats = inventory.Category.objects
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if SESSION_KEY in request.session:
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_cats = request.session[SESSION_KEY]
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cats = cats.filter(id__in=_cats)
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else:
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cats = cats.exclude(
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id__in=attendee.guided_categories_complete.all(),
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)
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cats = cats.order_by("order")
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request.session[SESSION_KEY] = []
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if starting:
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# Only display the first Category
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title = "Select ticket type"
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current_step = 2
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cats = [cats[0]]
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else:
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# Set title appropriately for remaining categories
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current_step = 3
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title = "Additional items"
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all_products = inventory.Product.objects.filter(
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category__in=cats,
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).select_related("category")
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with BatchController.batch(request.user):
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available_products = set(ProductController.available_products(
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request.user,
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products=all_products,
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))
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if len(available_products) == 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 next_step
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for category in cats:
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products = [
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i for i in available_products
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if i.category == category
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]
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prefix = "category_" + str(category.id)
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p = _handle_products(request, category, products, prefix)
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products_form, discounts, products_handled = p
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section = GuidedRegistrationSection(
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title=category.name,
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description=category.description,
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discounts=discounts,
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form=products_form,
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)
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if products:
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# This product category has items to show.
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sections.append(section)
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# Add this to the list of things to show if the form
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# errors.
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request.session[SESSION_KEY].append(category.id)
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if request.method == "POST" and not products_form.errors:
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# This is only saved if we pass each form with no
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# errors, and if the form actually has products.
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attendee.guided_categories_complete.add(category)
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if sections and request.method == "POST":
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for section in sections:
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if section.form.errors:
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break
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else:
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attendee.save()
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if SESSION_KEY in request.session:
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del request.session[SESSION_KEY]
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# We've successfully processed everything
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return next_step
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data = {
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"current_step": current_step,
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"sections": sections,
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"title": title,
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"total_steps": 3,
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}
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return render(request, "registrasion/guided_registration.html", data)
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@login_required
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def review(request):
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''' View for the review page. '''
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return render(
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request,
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"registrasion/review.html",
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{},
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)
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@login_required
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def edit_profile(request):
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''' View for editing an attendee's profile
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The user must be logged in to edit their profile.
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Returns:
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redirect or render:
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In the case of a ``POST`` request, it'll redirect to ``dashboard``,
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or otherwise, it will render ``registrasion/profile_form.html``
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with data::
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{
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"form": form, # Instance of ATTENDEE_PROFILE_FORM.
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}
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'''
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form, handled = _handle_profile(request, "profile")
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if handled and not form.errors:
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messages.success(
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request,
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"Your attendee profile was updated.",
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)
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return redirect("dashboard")
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data = {
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"form": form,
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}
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return render(request, "registrasion/profile_form.html", data)
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def _handle_profile(request, prefix):
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''' Returns a profile form instance, and a boolean which is true if the
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form was handled. '''
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attendee = people.Attendee.get_instance(request.user)
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try:
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profile = attendee.attendeeprofilebase
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profile = people.AttendeeProfileBase.objects.get_subclass(
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pk=profile.id,
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)
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except ObjectDoesNotExist:
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profile = None
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ProfileForm = get_form(settings.ATTENDEE_PROFILE_FORM)
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# Load a pre-entered name from the speaker's profile,
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# if they have one.
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try:
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speaker_profile = request.user.speaker_profile
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speaker_name = speaker_profile.name
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except ObjectDoesNotExist:
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speaker_name = None
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name_field = ProfileForm.Meta.model.name_field()
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initial = {}
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if profile is None and name_field is not None:
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initial[name_field] = speaker_name
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form = ProfileForm(
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request.POST or None,
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initial=initial,
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instance=profile,
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prefix=prefix
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)
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handled = True if request.POST else False
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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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return form, handled
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@login_required
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def product_category(request, category_id):
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''' Form for selecting products from an individual product category.
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Arguments:
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category_id (castable to int): The id of the category to display.
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Returns:
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redirect or render:
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If the form has been sucessfully submitted, redirect to
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``dashboard``. Otherwise, render
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``registrasion/product_category.html`` with data::
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{
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"category": category, # An inventory.Category for
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# category_id
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"discounts": discounts, # A list of
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# DiscountAndQuantity
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"form": products_form, # A form for selecting
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# products
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"voucher_form": voucher_form, # A form for entering a
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# voucher code
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}
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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 = inventory.Category.objects.get(pk=category_id)
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with BatchController.batch(request.user):
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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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if not products:
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messages.warning(
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request,
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(
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"There are no products available from category: " +
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category.name
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),
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)
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return redirect("dashboard")
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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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if products_form.has_changed():
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messages.success(
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request,
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"Your reservations have been updated.",
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)
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return redirect(review)
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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, "registrasion/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 = commerce.ProductItem.objects.filter(
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product__in=products,
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cart=current_cart.cart,
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).select_related("product")
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quantities = []
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seen = set()
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for item in items:
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quantities.append((item.product, item.quantity))
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seen.add(item.product)
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zeros = set(products) - seen
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for product in zeros:
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quantities.append((product, 0))
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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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if products_form.has_changed():
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_set_quantities_from_products_form(products_form, current_cart)
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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 = commerce.Cart.objects.filter(user=request.user)
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items = commerce.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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# Making this a function to lazily evaluate when it's displayed
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# in templates.
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discounts = util.lazy(
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DiscountController.available_discounts,
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request.user,
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[],
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products,
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)
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return products_form, discounts, handled
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def _set_quantities_from_products_form(products_form, current_cart):
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# Makes id_to_quantity, a dictionary from product ID to its quantity
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quantities = list(products_form.product_quantities())
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id_to_quantity = dict(quantities)
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# Get the actual product objects
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pks = [i[0] for i in quantities]
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products = inventory.Product.objects.filter(
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id__in=pks,
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).select_related("category").order_by("id")
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quantities.sort(key=lambda i: i[0])
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# Match the product objects to their quantities
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product_quantities = [
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(product, id_to_quantity[product.id]) for product in products
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]
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try:
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current_cart.set_quantities(product_quantities)
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except CartValidationError as ve:
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for ve_field in ve.error_list:
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product, message = ve_field.message
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products_form.add_product_error(product, message)
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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 = inventory.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, user_id=None):
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''' Runs the checkout process for the current cart.
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If the query string contains ``fix_errors=true``, Registrasion will attempt
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to fix errors preventing the system from checking out, including by
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cancelling expired discounts and vouchers, and removing any unavailable
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products.
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Arguments:
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user_id (castable to int):
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If the requesting user is staff, then the user ID can be used to
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run checkout for another user.
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Returns:
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render or redirect:
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If the invoice is generated successfully, or there's already a
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valid invoice for the current cart, redirect to ``invoice``.
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If there are errors when generating the invoice, render
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``registrasion/checkout_errors.html`` with the following data::
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{
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"error_list", [str, ...] # The errors to display.
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}
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'''
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if user_id is not None:
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if request.user.is_staff:
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user = User.objects.get(id=int(user_id))
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else:
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raise Http404()
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else:
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user = request.user
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current_cart = CartController.for_user(user)
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if "fix_errors" in request.GET and request.GET["fix_errors"] == "true":
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current_cart.fix_simple_errors()
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try:
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current_invoice = InvoiceController.for_cart(current_cart.cart)
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except ValidationError as ve:
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return _checkout_errors(request, ve)
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return redirect("invoice", current_invoice.invoice.id)
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def _checkout_errors(request, errors):
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error_list = []
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for error in errors.error_list:
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if isinstance(error, tuple):
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error = error[1]
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error_list.append(error)
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data = {
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"error_list": error_list,
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}
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return render(request, "registrasion/checkout_errors.html", data)
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def invoice_access(request, access_code):
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''' Redirects to an invoice for the attendee that matches the given access
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code, if any.
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|
|
If the attendee has multiple invoices, we use the following tie-break:
|
|
|
|
- If there's an unpaid invoice, show that, otherwise
|
|
- If there's a paid invoice, show the most recent one, otherwise
|
|
- Show the most recent invoid of all
|
|
|
|
Arguments:
|
|
|
|
access_code (castable to int): The access code for the user whose
|
|
invoice you want to see.
|
|
|
|
Returns:
|
|
redirect:
|
|
Redirect to the selected invoice for that user.
|
|
|
|
Raises:
|
|
Http404: If the user has no invoices.
|
|
'''
|
|
|
|
invoices = commerce.Invoice.objects.filter(
|
|
user__attendee__access_code=access_code,
|
|
).order_by("-issue_time")
|
|
|
|
if not invoices:
|
|
raise Http404()
|
|
|
|
unpaid = invoices.filter(status=commerce.Invoice.STATUS_UNPAID)
|
|
paid = invoices.filter(status=commerce.Invoice.STATUS_PAID)
|
|
|
|
if unpaid:
|
|
invoice = unpaid[0] # (should only be 1 unpaid invoice?)
|
|
elif paid:
|
|
invoice = paid[0] # Most recent paid invoice
|
|
else:
|
|
invoice = invoices[0] # Most recent of any invoices
|
|
|
|
return redirect("invoice", invoice.id, access_code)
|
|
|
|
|
|
def invoice(request, invoice_id, access_code=None):
|
|
''' Displays an invoice.
|
|
|
|
This view is not authenticated, but it will only allow access to either:
|
|
the user the invoice belongs to; staff; or a request made with the correct
|
|
access code.
|
|
|
|
Arguments:
|
|
|
|
invoice_id (castable to int): The invoice_id for the invoice you want
|
|
to view.
|
|
|
|
access_code (Optional[str]): The access code for the user who owns
|
|
this invoice.
|
|
|
|
Returns:
|
|
render:
|
|
Renders ``registrasion/invoice.html``, with the following
|
|
data::
|
|
|
|
{
|
|
"invoice": models.commerce.Invoice(),
|
|
}
|
|
|
|
Raises:
|
|
Http404: if the current user cannot view this invoice and the correct
|
|
access_code is not provided.
|
|
|
|
'''
|
|
|
|
current_invoice = InvoiceController.for_id_or_404(invoice_id)
|
|
|
|
if not current_invoice.can_view(
|
|
user=request.user,
|
|
access_code=access_code,
|
|
):
|
|
raise Http404()
|
|
|
|
data = {
|
|
"invoice": current_invoice.invoice,
|
|
}
|
|
|
|
return render(request, "registrasion/invoice.html", data)
|
|
|
|
|
|
def _staff_only(user):
|
|
''' Returns true if the user is staff. '''
|
|
return user.is_staff
|
|
|
|
|
|
@user_passes_test(_staff_only)
|
|
def manual_payment(request, invoice_id):
|
|
''' Allows staff to make manual payments or refunds on an invoice.
|
|
|
|
This form requires a login, and the logged in user needs to be staff.
|
|
|
|
Arguments:
|
|
invoice_id (castable to int): The invoice ID to be paid
|
|
|
|
Returns:
|
|
render:
|
|
Renders ``registrasion/manual_payment.html`` with the following
|
|
data::
|
|
|
|
{
|
|
"invoice": models.commerce.Invoice(),
|
|
"form": form, # A form that saves a ``ManualPayment``
|
|
# object.
|
|
}
|
|
|
|
'''
|
|
|
|
FORM_PREFIX = "manual_payment"
|
|
|
|
current_invoice = InvoiceController.for_id_or_404(invoice_id)
|
|
|
|
form = forms.ManualPaymentForm(
|
|
request.POST or None,
|
|
prefix=FORM_PREFIX,
|
|
)
|
|
|
|
if request.POST and form.is_valid():
|
|
form.instance.invoice = current_invoice.invoice
|
|
form.instance.entered_by = request.user
|
|
form.save()
|
|
current_invoice.update_status()
|
|
form = forms.ManualPaymentForm(prefix=FORM_PREFIX)
|
|
|
|
data = {
|
|
"invoice": current_invoice.invoice,
|
|
"form": form,
|
|
}
|
|
|
|
return render(request, "registrasion/manual_payment.html", data)
|
|
|
|
|
|
@user_passes_test(_staff_only)
|
|
def refund(request, invoice_id):
|
|
''' Marks an invoice as refunded and requests a credit note for the
|
|
full amount paid against the invoice.
|
|
|
|
This view requires a login, and the logged in user must be staff.
|
|
|
|
Arguments:
|
|
invoice_id (castable to int): The ID of the invoice to refund.
|
|
|
|
Returns:
|
|
redirect:
|
|
Redirects to ``invoice``.
|
|
|
|
'''
|
|
|
|
current_invoice = InvoiceController.for_id_or_404(invoice_id)
|
|
|
|
try:
|
|
current_invoice.refund()
|
|
messages.success(request, "This invoice has been refunded.")
|
|
except ValidationError as ve:
|
|
messages.error(request, ve)
|
|
|
|
return redirect("invoice", invoice_id)
|
|
|
|
|
|
@user_passes_test(_staff_only)
|
|
def credit_note(request, note_id, access_code=None):
|
|
''' Displays a credit note.
|
|
|
|
If ``request`` is a ``POST`` request, forms for applying or refunding
|
|
a credit note will be processed.
|
|
|
|
This view requires a login, and the logged in user must be staff.
|
|
|
|
Arguments:
|
|
note_id (castable to int): The ID of the credit note to view.
|
|
|
|
Returns:
|
|
render or redirect:
|
|
If the "apply to invoice" form is correctly processed, redirect to
|
|
that invoice, otherwise, render ``registration/credit_note.html``
|
|
with the following data::
|
|
|
|
{
|
|
"credit_note": models.commerce.CreditNote(),
|
|
"apply_form": form, # A form for applying credit note
|
|
# to an invoice.
|
|
"refund_form": form, # A form for applying a *manual*
|
|
# refund of the credit note.
|
|
"cancellation_fee_form" : form, # A form for generating an
|
|
# invoice with a
|
|
# cancellation fee
|
|
}
|
|
|
|
'''
|
|
|
|
note_id = int(note_id)
|
|
current_note = CreditNoteController.for_id_or_404(note_id)
|
|
|
|
apply_form = forms.ApplyCreditNoteForm(
|
|
current_note.credit_note.invoice.user,
|
|
request.POST or None,
|
|
prefix="apply_note"
|
|
)
|
|
|
|
refund_form = forms.ManualCreditNoteRefundForm(
|
|
request.POST or None,
|
|
prefix="refund_note"
|
|
)
|
|
|
|
cancellation_fee_form = forms.CancellationFeeForm(
|
|
request.POST or None,
|
|
prefix="cancellation_fee"
|
|
)
|
|
|
|
if request.POST and apply_form.is_valid():
|
|
inv_id = apply_form.cleaned_data["invoice"]
|
|
invoice = commerce.Invoice.objects.get(pk=inv_id)
|
|
current_note.apply_to_invoice(invoice)
|
|
messages.success(
|
|
request,
|
|
"Applied credit note %d to invoice." % note_id,
|
|
)
|
|
return redirect("invoice", invoice.id)
|
|
|
|
elif request.POST and refund_form.is_valid():
|
|
refund_form.instance.entered_by = request.user
|
|
refund_form.instance.parent = current_note.credit_note
|
|
refund_form.save()
|
|
messages.success(
|
|
request,
|
|
"Applied manual refund to credit note."
|
|
)
|
|
refund_form = forms.ManualCreditNoteRefundForm(
|
|
prefix="refund_note",
|
|
)
|
|
|
|
elif request.POST and cancellation_fee_form.is_valid():
|
|
percentage = cancellation_fee_form.cleaned_data["percentage"]
|
|
invoice = current_note.cancellation_fee(percentage)
|
|
messages.success(
|
|
request,
|
|
"Generated cancellation fee for credit note %d." % note_id,
|
|
)
|
|
return redirect("invoice", invoice.invoice.id)
|
|
|
|
data = {
|
|
"credit_note": current_note.credit_note,
|
|
"apply_form": apply_form,
|
|
"refund_form": refund_form,
|
|
"cancellation_fee_form": cancellation_fee_form,
|
|
}
|
|
|
|
return render(request, "registrasion/credit_note.html", data)
|
|
|
|
|
|
@user_passes_test(_staff_only)
|
|
def amend_registration(request, user_id):
|
|
''' Allows staff to amend a user's current registration cart, and etc etc.
|
|
'''
|
|
|
|
user = User.objects.get(id=int(user_id))
|
|
current_cart = CartController.for_user(user)
|
|
|
|
items = commerce.ProductItem.objects.filter(
|
|
cart=current_cart.cart,
|
|
).select_related("product")
|
|
initial = [{"product": i.product, "quantity": i.quantity} for i in items]
|
|
|
|
StaffProductsFormSet = forms.staff_products_formset_factory(user)
|
|
formset = StaffProductsFormSet(
|
|
request.POST or None,
|
|
initial=initial,
|
|
prefix="products",
|
|
)
|
|
|
|
for item, form in zip(items, formset):
|
|
queryset = inventory.Product.objects.filter(id=item.product.id)
|
|
form.fields["product"].queryset = queryset
|
|
|
|
voucher_form = forms.VoucherForm(
|
|
request.POST or None,
|
|
prefix="voucher",
|
|
)
|
|
|
|
if request.POST and formset.is_valid():
|
|
|
|
pq = [
|
|
(f.cleaned_data["product"], f.cleaned_data["quantity"])
|
|
for f in formset
|
|
if "product" in f.cleaned_data and
|
|
f.cleaned_data["product"] is not None
|
|
]
|
|
|
|
try:
|
|
current_cart.set_quantities(pq)
|
|
return redirect(amend_registration, user_id)
|
|
except ValidationError as ve:
|
|
for ve_field in ve.error_list:
|
|
product, message = ve_field.message
|
|
for form in formset:
|
|
if "product" not in form.cleaned_data:
|
|
# This is the empty form.
|
|
continue
|
|
if form.cleaned_data["product"] == product:
|
|
form.add_error("quantity", message)
|
|
|
|
if request.POST and voucher_form.has_changed() and voucher_form.is_valid():
|
|
try:
|
|
current_cart.apply_voucher(voucher_form.cleaned_data["voucher"])
|
|
return redirect(amend_registration, user_id)
|
|
except ValidationError as ve:
|
|
voucher_form.add_error(None, ve)
|
|
|
|
ic = ItemController(user)
|
|
data = {
|
|
"user": user,
|
|
"paid": ic.items_purchased(),
|
|
"cancelled": ic.items_released(),
|
|
"form": formset,
|
|
"voucher_form": voucher_form,
|
|
}
|
|
|
|
return render(request, "registrasion/amend_registration.html", data)
|