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https://github.com/pretix/pretix.git
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Add add-on products
This commit is contained in:
Raphael Michel
@@ -11,14 +11,17 @@ from django.views.generic.base import TemplateResponseMixin
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from pretix.base.models import Order
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from pretix.base.models.orders import InvoiceAddress
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from pretix.base.services.cart import set_cart_addons
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from pretix.base.services.orders import perform_order
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from pretix.base.signals import register_payment_providers
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from pretix.multidomain.urlreverse import eventreverse
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from pretix.presale.forms.checkout import ContactForm, InvoiceAddressForm
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from pretix.presale.forms.checkout import (
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AddOnsForm, ContactForm, InvoiceAddressForm,
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)
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from pretix.presale.signals import (
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checkout_confirm_messages, checkout_flow_steps, order_meta_from_request,
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)
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from pretix.presale.views import CartMixin, get_cart_total
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from pretix.presale.views import CartMixin, get_cart, get_cart_total
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from pretix.presale.views.async import AsyncAction
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from pretix.presale.views.questions import QuestionsViewMixin
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@@ -126,6 +129,116 @@ class TemplateFlowStep(TemplateResponseMixin, BaseCheckoutFlowStep):
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raise NotImplementedError()
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class AddOnsStep(CartMixin, AsyncAction, TemplateFlowStep):
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priority = 40
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identifier = "addons"
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template_name = "pretixpresale/event/checkout_addons.html"
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task = set_cart_addons
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known_errortypes = ['CartError']
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def is_applicable(self, request):
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return get_cart(request).filter(item__addons__isnull=False).exists()
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def is_completed(self, request, warn=False):
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for cartpos in get_cart(request).filter(addon_to__isnull=True).prefetch_related(
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'item__addons', 'item__addons__addon_category', 'addons', 'addons__item'
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):
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a = cartpos.addons.all()
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for iao in cartpos.item.addons.all():
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found = len([1 for p in a if p.item.category_id == iao.addon_category_id])
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if found < iao.min_count or found > iao.max_count:
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return False
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return True
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@cached_property
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def forms(self):
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"""
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A list of forms with one form for each cart position that has questions
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the user can answer. All forms have a custom prefix, so that they can all be
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submitted at once.
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"""
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formset = []
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for cartpos in get_cart(self.request).filter(addon_to__isnull=True).prefetch_related(
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'item__addons', 'item__addons__addon_category', 'addons', 'addons__variation'
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):
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current_addon_products = {
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a.item_id: a.variation_id for a in cartpos.addons.all()
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}
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formsetentry = {
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'cartpos': cartpos,
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'item': cartpos.item,
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'variation': cartpos.variation,
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'categories': []
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}
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for iao in cartpos.item.addons.all():
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category = {
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'category': iao.addon_category,
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'min_count': iao.min_count,
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'max_count': iao.max_count,
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'form': AddOnsForm(
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event=self.request.event,
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prefix='{}_{}'.format(cartpos.pk, iao.addon_category.pk),
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category=iao.addon_category,
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initial=current_addon_products,
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data=(self.request.POST if self.request.method == 'POST' else None)
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)
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}
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if len(category['form'].fields) > 0:
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formsetentry['categories'].append(category)
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formset.append(formsetentry)
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return formset
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def get_context_data(self, **kwargs):
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ctx = super().get_context_data(**kwargs)
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ctx['forms'] = self.forms
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return ctx
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def get_success_message(self, value):
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return None
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def get_success_url(self, value):
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return self.get_next_url(self.request)
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def get_error_url(self):
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return self.get_step_url()
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def get(self, request):
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self.request = request
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if 'async_id' in request.GET and settings.HAS_CELERY:
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return self.get_result(request)
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return TemplateFlowStep.get(self, request)
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def post(self, request, *args, **kwargs):
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self.request = request
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is_valid = True
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data = []
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for f in self.forms:
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for c in f['categories']:
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is_valid = is_valid and c['form'].is_valid()
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if c['form'].is_valid():
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for k, v in c['form'].cleaned_data.items():
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itemid = int(k[5:])
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if v is True:
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data.append({
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'addon_to': f['cartpos'].pk,
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'item': itemid,
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'variation': None
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})
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elif v:
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data.append({
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'addon_to': f['cartpos'].pk,
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'item': itemid,
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'variation': int(v)
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})
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if not is_valid:
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return self.get(request, *args, **kwargs)
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return self.do(self.request.event.id, data, self.request.session.session_key)
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class QuestionsStep(QuestionsViewMixin, CartMixin, TemplateFlowStep):
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priority = 50
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identifier = "questions"
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@@ -395,6 +508,7 @@ class ConfirmStep(CartMixin, AsyncAction, TemplateFlowStep):
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DEFAULT_FLOW = (
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AddOnsStep,
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QuestionsStep,
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PaymentStep,
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ConfirmStep
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@@ -2,9 +2,12 @@ from decimal import Decimal
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from django import forms
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from django.core.exceptions import ValidationError
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from django.db.models import Count, Prefetch, Q
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from django.utils.formats import number_format
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from django.utils.timezone import now
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from django.utils.translation import ugettext_lazy as _
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from pretix.base.models import Question
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from pretix.base.models import ItemVariation, Question
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from pretix.base.models.orders import InvoiceAddress
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@@ -141,3 +144,90 @@ class QuestionsForm(forms.Form):
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# Cache the answer object for later use
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field.answer = answers[0]
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self.fields['question_%s' % q.id] = field
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class AddOnsForm(forms.Form):
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"""
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This form class is responsible for selecting add-ons to a product in the cart.
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"""
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def _label(self, event, item_or_variation):
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if isinstance(item_or_variation, ItemVariation):
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variation = item_or_variation
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item = item_or_variation.item
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price = variation.price
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price_net = variation.net_price
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label = variation.value
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else:
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item = item_or_variation
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price = item.default_price
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price_net = item.default_price_net
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label = item.name
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if not item.tax_rate or not price:
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return '{name} (+ {currency} {price})'.format(
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name=label, currency=event.currency, price=number_format(price)
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)
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elif event.settings.display_net_prices:
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return '{name} (+ {currency} {price} plus {taxes}% taxes)'.format(
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name=label, currency=event.currency, price=number_format(price_net),
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taxes=number_format(item.tax_rate)
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)
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else:
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return '{name} (+ {currency} {price} incl. {taxes}% taxes)'.format(
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name=label, currency=event.currency, price=number_format(price),
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taxes=number_format(item.tax_rate)
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)
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def __init__(self, *args, **kwargs):
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"""
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Takes additional keyword arguments:
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:param category: The category to choose from
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:param event: The event this belongs to
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"""
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category = kwargs.pop('category')
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event = kwargs.pop('event')
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current_addons = kwargs.pop('initial')
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super().__init__(*args, **kwargs)
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items = category.items.filter(
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Q(active=True)
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& Q(Q(available_from__isnull=True) | Q(available_from__lte=now()))
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& Q(Q(available_until__isnull=True) | Q(available_until__gte=now()))
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& Q(hide_without_voucher=False)
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).prefetch_related(
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'variations__quotas', # for .availability()
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Prefetch('quotas', queryset=event.quotas.all()),
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Prefetch('variations', to_attr='available_variations',
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queryset=ItemVariation.objects.filter(active=True, quotas__isnull=False).distinct()),
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).annotate(
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quotac=Count('quotas'),
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has_variations=Count('variations')
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).filter(
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quotac__gt=0
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).order_by('category__position', 'category_id', 'position', 'name')
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for i in items:
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if i.has_variations:
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field = forms.ChoiceField(
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choices=[('', '–')] + [
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(
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v.pk,
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self._label(event, v)
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) for v in i.available_variations
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],
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label=i.name,
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required=False,
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widget=forms.RadioSelect,
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initial=current_addons.get(i.pk)
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)
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else:
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field = forms.BooleanField(
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label=self._label(event, i),
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required=False,
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initial=i.pk in current_addons
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)
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self.fields['item_%s' % i.pk] = field
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@@ -0,0 +1,70 @@
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{% extends "pretixpresale/event/base.html" %}
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{% load i18n %}
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{% load bootstrap3 %}
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{% block title %}{% trans "Checkout" %}{% endblock %}
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{% block content %}
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<h2>{% trans "Checkout" %}</h2>
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<p>
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{% trans "For some of the products in your cart, you can choose additional options before you continue." %}
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</p>
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<form class="form-horizontal" method="post" data-asynctask>
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{% csrf_token %}
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<div class="panel-group" id="questions_group">
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{% for form in forms %}
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<div class="panel panel-default">
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<div class="panel-heading">
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<h4 class="panel-title">
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<a data-toggle="collapse" href="#cp{{ form.pos.id }}">
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<strong>{{ form.item.name }}</strong>
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{% if form.variation %}
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– {{ form.variation }}
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{% endif %}
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</a>
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</h4>
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</div>
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<div id="cp{{ form.pos.id }}"
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class="panel-collapse collapsed in">
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<div class="panel-body">
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{% for c in form.categories %}
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<fieldset>
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<legend>{{ c.category.name }}</legend>
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<p>
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{% if c.min_count == c.max_count %}
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{% blocktrans trimmed with min_count=c.min_count %}
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You need to choose {{ min_count }} options from this category.
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{% endblocktrans %}
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{% else %}
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{% blocktrans trimmed with min_count=c.min_count max_count=c.max_count %}
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You can choose between {{ min_count }} and {{ max_count }} options from
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this category.
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{% endblocktrans %}
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{% endif %}
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</p>
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{% bootstrap_form c.form layout="horizontal" %}
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</fieldset>
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{% empty %}
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<em>
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{% trans "There are no add-ons available for this product." %}
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</em>
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{% endfor %}
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</div>
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</div>
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</div>
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{% endfor %}
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</div>
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<div class="row checkout-button-row">
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<div class="col-md-4">
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<a class="btn btn-block btn-default btn-lg"
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href="{{ prev_url }}">
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{% trans "Go back" %}
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</a>
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</div>
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<div class="col-md-4 col-md-offset-4">
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<button class="btn btn-block btn-primary btn-lg" type="submit">
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{% trans "Continue" %}
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</button>
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</div>
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<div class="clearfix"></div>
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</div>
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</form>
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{% endblock %}
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