forked from CGM_Public/pretix_original
Refactored some code out of pretix.presale
This commit is contained in:
Raphael Michel
@@ -1,8 +1,10 @@
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from django.conf import settings
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from django.core.urlresolvers import reverse
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from datetime import timedelta, datetime
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from django.db import transaction
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from django.utils.timezone import now
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from pretix.base.models import Order, Quota
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from pretix.base.models import Order, Quota, OrderPosition
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from django.utils.translation import ugettext_lazy as _
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from pretix.base.services.mail import mail
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from pretix.helpers.urls import build_absolute_uri
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def mark_order_paid(order, provider=None, info=None, date=None, manual=None, force=False):
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@@ -47,13 +49,122 @@ def mark_order_paid(order, provider=None, info=None, date=None, manual=None, for
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'user': order.user,
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'order': order,
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'event': order.event,
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'url': settings.SITE_URL + reverse('presale:event.order', kwargs={
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'url': build_absolute_uri('presale:event.order', kwargs={
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'event': order.event.slug,
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'organizer': order.event.organizer.slug,
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'order': order.code
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'order': order.code,
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}),
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'downloads': order.event.settings.get('ticket_download', as_type=bool)
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},
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order.event
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)
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return order
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class OrderError(Exception):
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pass
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def perform_order(event, user, payment_provider, positions):
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error_messages = {
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'unavailable': _('Some of the products you selected were no longer available. '
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'Please see below for details.'),
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'in_part': _('Some of the products you selected were no longer available in '
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'the quantity you selected. Please see below for details.'),
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'price_changed': _('The price of some of the items in your cart has changed in the '
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'meantime. Please see below for details.'),
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'busy': _('We were not able to process your request completely as the '
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'server was too busy. Please try again.'),
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'max_items': _("You cannot select more than %s items per order"),
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}
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dt = now()
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quotas_locked = set()
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err = None
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try:
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for i, cp in enumerate(positions):
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quotas = list(cp.item.quotas.all()) if cp.variation is None else list(cp.variation.quotas.all())
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if cp.expires < dt:
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price = cp.item.check_restrictions() if cp.variation is None else cp.variation.check_restrictions()
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if price is False or len(quotas) == 0:
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err = err or error_messages['unavailable']
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continue
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if price != cp.price:
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cp = cp.clone()
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positions[i] = cp
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cp.price = price
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cp.save()
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err = err or error_messages['price_changed']
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continue
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quota_ok = True
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for quota in quotas:
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# Lock the quota, so no other thread is allowed to perform sales covered by this
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# quota while we're doing so.
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if quota not in quotas_locked:
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quota.lock()
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quotas_locked.add(quota)
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avail = quota.availability()
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if avail[0] != Quota.AVAILABILITY_OK:
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# This quota is sold out/currently unavailable, so do not sell this at all
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err = err or error_messages['unavailable']
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quota_ok = False
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break
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if quota_ok:
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if not event.presale_end or now() < event.presale_end:
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cp = cp.clone()
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positions[i] = cp
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cp.expires = now() + timedelta(
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minutes=event.settings.get('reservation_time', as_type=int))
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cp.save()
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else:
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cp.delete() # Sorry!
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if err:
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raise OrderError(err)
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else: # Everything went well
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order = place_order(event, user, positions, dt, payment_provider)
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mail(
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user, _('Your order: %(code)s') % {'code': order.code},
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'pretixpresale/email/order_placed.txt',
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{
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'user': user, 'order': order,
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'event': event,
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'url': build_absolute_uri('presale:event.order', kwargs={
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'event': event.slug,
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'organizer': event.organizer.slug,
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'order': order.code,
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}),
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'payment': payment_provider.order_pending_mail_render(order)
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},
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event
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)
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return order
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except Quota.LockTimeoutException:
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# Is raised when there are too many threads asking for quota locks and we were
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# unaible to get one
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raise OrderError(error_messages['busy'])
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finally:
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# Release the locks. This is important ;)
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for quota in quotas_locked:
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quota.release()
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@transaction.atomic()
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def place_order(event, user, positions, dt, payment_provider):
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total = sum([c.price for c in positions])
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payment_fee = payment_provider.calculate_fee(total)
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total += payment_fee
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expires = [dt + timedelta(days=event.settings.get('payment_term_days', as_type=int))]
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if event.settings.get('payment_term_last'):
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expires.append(event.settings.get('payment_term_last', as_type=datetime))
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order = Order.objects.create(
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status=Order.STATUS_PENDING,
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event=event,
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user=user,
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datetime=dt,
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expires=min(expires),
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total=total,
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payment_fee=payment_fee,
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payment_provider=payment_provider.identifier,
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)
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OrderPosition.transform_cart_positions(positions, order)
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return order
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@@ -1,19 +1,14 @@
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from datetime import timedelta, datetime
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from django.contrib import messages
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from django.core.urlresolvers import reverse
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from django.db import transaction
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from django.db.models import Q, Sum
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from django.http import HttpRequest
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from django.shortcuts import redirect
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from django.utils.functional import cached_property
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from django.utils.timezone import now
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from django.views.generic import TemplateView
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from django.utils.translation import ugettext_lazy as _
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from pretix.base.services.mail import mail
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from pretix.base.models import CartPosition, QuestionAnswer, Quota, Order, OrderPosition
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from pretix.base.models import CartPosition, QuestionAnswer, OrderPosition
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from pretix.base.services.orders import perform_order, OrderError
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from pretix.base.signals import register_payment_providers
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from pretix.helpers.urls import build_absolute_uri
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from pretix.presale.forms.checkout import QuestionsForm
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from pretix.presale.views import EventViewMixin, CartDisplayMixin, EventLoginRequiredMixin
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@@ -199,18 +194,6 @@ class PaymentDetails(EventViewMixin, CartDisplayMixin, EventLoginRequiredMixin,
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class OrderConfirm(EventViewMixin, CartDisplayMixin, EventLoginRequiredMixin, CheckoutView):
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template_name = "pretixpresale/event/checkout_confirm.html"
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error_messages = {
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'unavailable': _('Some of the products you selected were no longer available. '
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'Please see below for details.'),
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'in_part': _('Some of the products you selected were no longer available in '
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'the quantity you selected. Please see below for details.'),
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'price_changed': _('The price of some of the items in your cart has changed in the '
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'meantime. Please see below for details.'),
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'busy': _('We were not able to process your request completely as the '
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'server was too busy. Please try again.'),
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'max_items': _("You cannot select more than %s items per order"),
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}
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def __init__(self, *args, **kwargs):
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self.msg_some_unavailable = False
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super().__init__(*args, **kwargs)
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@@ -269,99 +252,15 @@ class OrderConfirm(EventViewMixin, CartDisplayMixin, EventLoginRequiredMixin, Ch
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return self.check_process(request) or self.perform_order(request)
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def perform_order(self, request: HttpRequest):
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dt = now()
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quotas_locked = set()
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try:
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cartpos = self.positions
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for i, cp in enumerate(cartpos):
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quotas = list(cp.item.quotas.all()) if cp.variation is None else list(cp.variation.quotas.all())
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if cp.expires < dt:
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price = cp.item.check_restrictions() if cp.variation is None else cp.variation.check_restrictions()
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if price is False or len(quotas) == 0:
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self.error_message(self.error_messages['unavailable'])
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continue
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if price != cp.price:
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cp = cp.clone()
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cartpos[i] = cp
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cp.price = price
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cp.save()
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self.error_message(self.error_messages['price_changed'])
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continue
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quota_ok = True
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for quota in quotas:
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# Lock the quota, so no other thread is allowed to perform sales covered by this
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# quota while we're doing so.
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if quota not in quotas_locked:
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quota.lock()
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quotas_locked.add(quota)
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avail = quota.availability()
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if avail[0] != Quota.AVAILABILITY_OK:
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# This quota is sold out/currently unavailable, so do not sell this at all
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self.error_message(self.error_messages['unavailable'])
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quota_ok = False
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break
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if quota_ok:
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if not self.request.event.presale_end or now() < self.request.event.presale_end:
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cp = cp.clone()
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cartpos[i] = cp
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cp.expires = now() + timedelta(
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minutes=self.request.event.settings.get('reservation_time', as_type=int))
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cp.save()
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else:
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cp.delete() # Sorry!
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if not self.msg_some_unavailable: # Everything went well
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order = self._place_order(cartpos, dt)
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messages.success(request, _('Your order has been placed.'))
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mail(
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request.user, _('Your order: %(code)s') % {'code': order.code},
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'pretixpresale/email/order_placed.txt',
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{
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'user': request.user, 'order': order,
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'event': request.event,
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'url': build_absolute_uri('presale:event.order', kwargs={
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'event': self.request.event.slug,
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'organizer': self.request.event.organizer.slug,
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'order': order.code,
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}),
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'payment': self.payment_provider.order_pending_mail_render(order)
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},
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request.event
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)
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resp = self.payment_provider.checkout_perform(request, order)
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return redirect(resp or self.get_order_url(order))
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except Quota.LockTimeoutException:
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# Is raised when there are too many threads asking for quota locks and we were
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# unaible to get one
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self.error_message(self.error_messages['busy'], important=True)
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finally:
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# Release the locks. This is important ;)
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for quota in quotas_locked:
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quota.release()
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return redirect(self.get_confirm_url())
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@transaction.atomic()
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def _place_order(self, cartpos, dt):
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total = sum([c.price for c in cartpos])
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payment_fee = self.payment_provider.calculate_fee(total)
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total += payment_fee
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expires = [dt + timedelta(days=self.request.event.settings.get('payment_term_days', as_type=int))]
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if self.request.event.settings.get('payment_term_last'):
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expires.append(self.request.event.settings.get('payment_term_last', as_type=datetime))
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order = Order.objects.create(
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status=Order.STATUS_PENDING,
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event=self.request.event,
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user=self.request.user,
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datetime=dt,
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expires=min(expires),
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total=total,
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payment_fee=payment_fee,
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payment_provider=self.payment_provider.identifier,
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)
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OrderPosition.transform_cart_positions(cartpos, order)
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return order
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order = perform_order(self.request.event, self.request.user, self.payment_provider, self.positions)
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except OrderError as e:
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messages.error(request, str(e))
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return redirect(self.get_confirm_url())
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else:
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messages.success(request, _('Your order has been placed.'))
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resp = self.payment_provider.checkout_perform(request, order)
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return redirect(resp or self.get_order_url(order))
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def get_previous_url(self):
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if self.payment_provider.identifier != "free":
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