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pretix_cgo/src/pretix/base/services/orders.py
Raphael Michel 4fb5c6bef0 New implementation of sales channels (#4111) 
Co-authored-by: Martin Gross <gross@rami.io>
2024-06-30 19:24:30 +02:00

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#
# This file is part of pretix (Community Edition).
#
# Copyright (C) 2014-2020 Raphael Michel and contributors
# Copyright (C) 2020-2021 rami.io GmbH and contributors
#
# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General
# Public License as published by the Free Software Foundation in version 3 of the License.
#
# ADDITIONAL TERMS APPLY: Pursuant to Section 7 of the GNU Affero General Public License, additional terms are
# applicable granting you additional permissions and placing additional restrictions on your usage of this software.
# Please refer to the pretix LICENSE file to obtain the full terms applicable to this work. If you did not receive
# this file, see <https://pretix.eu/about/en/license>.
#
# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along with this program. If not, see
# <https://www.gnu.org/licenses/>.
#
# This file is based on an earlier version of pretix which was released under the Apache License 2.0. The full text of
# the Apache License 2.0 can be obtained at <http://www.apache.org/licenses/LICENSE-2.0>.
#
# This file may have since been changed and any changes are released under the terms of AGPLv3 as described above. A
# full history of changes and contributors is available at <https://github.com/pretix/pretix>.
#
# This file contains Apache-licensed contributions copyrighted by: Daniel, Flavia Bastos, Heok Hong Low, Jakob Schnell,
# Sanket Dasgupta, Tobias Kunze
#
# Unless required by applicable law or agreed to in writing, software distributed under the Apache License 2.0 is
# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under the License.
import json
import logging
import operator
import sys
from collections import Counter, defaultdict, namedtuple
from datetime import datetime, time, timedelta
from decimal import Decimal
from functools import reduce
from time import sleep
from typing import List, Optional
from celery.exceptions import MaxRetriesExceededError
from django.conf import settings
from django.core.cache import cache
from django.core.exceptions import ValidationError
from django.db import transaction
from django.db.models import (
Count, Exists, F, IntegerField, Max, Min, OuterRef, Q, QuerySet, Sum,
Value,
)
from django.db.models.functions import Coalesce, Greatest
from django.db.transaction import get_connection
from django.dispatch import receiver
from django.utils.functional import cached_property
from django.utils.timezone import make_aware, now
from django.utils.translation import gettext as _, gettext_lazy, ngettext_lazy
from django_scopes import scopes_disabled
from pretix.api.models import OAuthApplication
from pretix.base.email import get_email_context
from pretix.base.i18n import get_language_without_region, language
from pretix.base.media import MEDIA_TYPES
from pretix.base.models import (
CartPosition, Device, Event, GiftCard, Item, ItemVariation, Membership,
Order, OrderPayment, OrderPosition, Quota, Seat, SeatCategoryMapping, User,
Voucher,
)
from pretix.base.models.event import SubEvent
from pretix.base.models.orders import (
BlockedTicketSecret, InvoiceAddress, OrderFee, OrderRefund,
generate_secret,
)
from pretix.base.models.organizer import SalesChannel, TeamAPIToken
from pretix.base.models.tax import TAXED_ZERO, TaxedPrice, TaxRule
from pretix.base.payment import GiftCardPayment, PaymentException
from pretix.base.reldate import RelativeDateWrapper
from pretix.base.secrets import assign_ticket_secret
from pretix.base.services import tickets
from pretix.base.services.invoices import (
generate_cancellation, generate_invoice, invoice_qualified,
)
from pretix.base.services.locking import (
LOCK_TRUST_WINDOW, LockTimeoutException, lock_objects,
)
from pretix.base.services.mail import SendMailException
from pretix.base.services.memberships import (
create_membership, validate_memberships_in_order,
)
from pretix.base.services.pricing import (
apply_discounts, get_listed_price, get_price,
)
from pretix.base.services.quotas import QuotaAvailability
from pretix.base.services.tasks import ProfiledEventTask, ProfiledTask
from pretix.base.signals import (
order_approved, order_canceled, order_changed, order_denied, order_expired,
order_fee_calculation, order_paid, order_placed, order_reactivated,
order_split, order_valid_if_pending, periodic_task, validate_order,
)
from pretix.base.timemachine import time_machine_now, time_machine_now_assigned
from pretix.celery_app import app
from pretix.helpers import OF_SELF
from pretix.helpers.models import modelcopy
from pretix.helpers.periodic import minimum_interval
from pretix.testutils.middleware import debugflags_var
class OrderError(Exception):
def __init__(self, *args):
msg = args[0]
msgargs = args[1] if len(args) > 1 else None
self.args = args
if msgargs:
msg = _(msg) % msgargs
else:
# force msg to string to make sure lazy-translation is done in current locale-context
# otherwise translation might happen in celery-context, which uses default-locale
# also translate with _/gettext to keep it backwards compatible
msg = _(str(msg))
super().__init__(msg)
error_messages = {
'unavailable': gettext_lazy(
'Some of the products you selected were no longer available. '
'Please see below for details.'
),
'in_part': gettext_lazy(
'Some of the products you selected were no longer available in '
'the quantity you selected. Please see below for details.'
),
'price_changed': gettext_lazy(
'The price of some of the items in your cart has changed in the '
'meantime. Please see below for details.'
),
'internal': gettext_lazy("An internal error occurred, please try again."),
'race_condition': gettext_lazy("This order was changed by someone else simultaneously. Please check if your "
"changes are still accurate and try again."),
'empty': gettext_lazy("Your cart is empty."),
'max_items_per_product': ngettext_lazy(
"You cannot select more than %(max)s item of the product %(product)s. We removed the surplus items from your cart.",
"You cannot select more than %(max)s items of the product %(product)s. We removed the surplus items from your cart.",
"max"
),
'busy': gettext_lazy(
'We were not able to process your request completely as the '
'server was too busy. Please try again.'
),
'not_started': gettext_lazy('The booking period for this event has not yet started.'),
'ended': gettext_lazy('The booking period has ended.'),
'voucher_min_usages': ngettext_lazy(
'The voucher code "%(voucher)s" can only be used if you select at least %(number)s matching products.',
'The voucher code "%(voucher)s" can only be used if you select at least %(number)s matching products.',
'number'
),
'voucher_invalid': gettext_lazy('The voucher code used for one of the items in your cart is not known in our database.'),
'voucher_redeemed': gettext_lazy(
'The voucher code used for one of the items in your cart has already been used the maximum '
'number of times allowed. We removed this item from your cart.'
),
'voucher_budget_used': gettext_lazy(
'The voucher code used for one of the items in your cart has already been too often. We '
'adjusted the price of the item in your cart.'
),
'voucher_expired': gettext_lazy(
'The voucher code used for one of the items in your cart is expired. We removed this item from your cart.'
),
'voucher_invalid_item': gettext_lazy(
'The voucher code used for one of the items in your cart is not valid for this item. We removed this item from your cart.'
),
'voucher_required': gettext_lazy('You need a valid voucher code to order one of the products.'),
'some_subevent_not_started': gettext_lazy(
'The booking period for one of the events in your cart has not yet started. The '
'affected positions have been removed from your cart.'
),
'some_subevent_ended': gettext_lazy(
'The booking period for one of the events in your cart has ended. The affected '
'positions have been removed from your cart.'
),
'seat_invalid': gettext_lazy('One of the seats in your order was invalid, we removed the position from your cart.'),
'seat_unavailable': gettext_lazy('One of the seats in your order has been taken in the meantime, we removed the position from your cart.'),
'country_blocked': gettext_lazy('One of the selected products is not available in the selected country.'),
'not_for_sale': gettext_lazy('You selected a product which is not available for sale.'),
'addon_invalid_base': gettext_lazy('You can not select an add-on for the selected product.'),
'addon_duplicate_item': gettext_lazy('You can not select two variations of the same add-on product.'),
'addon_max_count': ngettext_lazy(
'You can select at most %(max)s add-on from the category %(cat)s for the product %(base)s.',
'You can select at most %(max)s add-ons from the category %(cat)s for the product %(base)s.',
'max'
),
'addon_min_count': ngettext_lazy(
'You need to select at least %(min)s add-on from the category %(cat)s for the product %(base)s.',
'You need to select at least %(min)s add-ons from the category %(cat)s for the product %(base)s.',
'min'
),
'addon_no_multi': gettext_lazy('You can select every add-on from the category %(cat)s for the product %(base)s at most once.'),
'addon_already_checked_in': gettext_lazy('You cannot remove the position %(addon)s since it has already been checked in.'),
'currency_XXX': gettext_lazy('Paid products not supported without a valid currency.'),
}
logger = logging.getLogger(__name__)
def mark_order_paid(*args, **kwargs):
raise NotImplementedError("This method is no longer supported since pretix 1.17.")
def reactivate_order(order: Order, force: bool=False, user: User=None, auth=None):
"""
Reactivates a canceled order. If ``force`` is not set to ``True``, this will fail if there is not
enough quota.
"""
if order.status != Order.STATUS_CANCELED:
raise OrderError(_('The order was not canceled.'))
with transaction.atomic():
is_available = order._is_still_available(now(), count_waitinglist=False, check_voucher_usage=True,
check_memberships=True, lock=True, force=force)
if is_available is True:
if order.payment_refund_sum >= order.total and not order.require_approval:
order.status = Order.STATUS_PAID
else:
order.status = Order.STATUS_PENDING
order.cancellation_date = None
order.set_expires(now(),
order.event.subevents.filter(id__in=[p.subevent_id for p in order.positions.all()]))
order.save(update_fields=['expires', 'status', 'cancellation_date'])
order.log_action(
'pretix.event.order.reactivated',
user=user,
auth=auth,
data={
'expires': order.expires,
}
)
for position in order.positions.all():
if position.voucher:
Voucher.objects.filter(pk=position.voucher.pk).update(redeemed=Greatest(0, F('redeemed') + 1))
for gc in position.issued_gift_cards.all():
gc = GiftCard.objects.select_for_update(of=OF_SELF).get(pk=gc.pk)
gc.transactions.create(value=position.price, order=order, acceptor=order.event.organizer)
break
for m in position.granted_memberships.all():
m.canceled = False
m.save()
order.create_transactions()
else:
raise OrderError(is_available)
order_reactivated.send(order.event, order=order)
if order.status == Order.STATUS_PAID:
order_paid.send(order.event, order=order)
num_invoices = order.invoices.filter(is_cancellation=False).count()
if num_invoices > 0 and order.invoices.filter(is_cancellation=True).count() >= num_invoices and invoice_qualified(order):
generate_invoice(order)
def extend_order(order: Order, new_date: datetime, force: bool=False, valid_if_pending: bool=None, user: User=None, auth=None):
"""
Extends the deadline of an order. If the order is already expired, the quota will be checked to
see if this is actually still possible. If ``force`` is set to ``True``, the result of this check
will be ignored.
"""
if new_date < now():
raise OrderError(_('The new expiry date needs to be in the future.'))
def change(was_expired=True):
old_date = order.expires
order.expires = new_date
if was_expired:
order.status = Order.STATUS_PENDING
if valid_if_pending is not None and valid_if_pending != order.valid_if_pending:
order.valid_if_pending = valid_if_pending
if valid_if_pending:
order.log_action(
'pretix.event.order.valid_if_pending.set',
user=user,
auth=auth,
)
else:
order.log_action(
'pretix.event.order.valid_if_pending.unset',
user=user,
auth=auth,
)
order.save(update_fields=['valid_if_pending', 'expires'] + (['status'] if was_expired else []))
if old_date != new_date:
order.log_action(
'pretix.event.order.expirychanged',
user=user,
auth=auth,
data={
'expires': order.expires,
'force': force,
'state_change': was_expired
}
)
if was_expired:
num_invoices = order.invoices.filter(is_cancellation=False).count()
if num_invoices > 0 and order.invoices.filter(is_cancellation=True).count() >= num_invoices and invoice_qualified(order):
generate_invoice(order)
order.create_transactions()
with transaction.atomic():
if order.status == Order.STATUS_PENDING:
change(was_expired=False)
else:
is_available = order._is_still_available(now(), count_waitinglist=False, lock=True, force=force)
if is_available is True:
change(was_expired=True)
else:
raise OrderError(is_available)
@transaction.atomic
def mark_order_refunded(order, user=None, auth=None, api_token=None):
oautha = auth.pk if isinstance(auth, OAuthApplication) else None
device = auth.pk if isinstance(auth, Device) else None
api_token = (api_token.pk if api_token else None) or (auth if isinstance(auth, TeamAPIToken) else None)
return _cancel_order(
order.pk, user.pk if user else None, send_mail=False, api_token=api_token, device=device, oauth_application=oautha
)
def mark_order_expired(order, user=None, auth=None):
"""
Mark this order as expired. This sets the payment status and returns the order object.
:param order: The order to change
:param user: The user that performed the change
"""
with transaction.atomic():
if isinstance(order, int):
order = Order.objects.get(pk=order)
if isinstance(user, int):
user = User.objects.get(pk=user)
order.status = Order.STATUS_EXPIRED
order.save(update_fields=['status'])
order.log_action('pretix.event.order.expired', user=user, auth=auth)
i = order.invoices.filter(is_cancellation=False).last()
if i and not i.refered.exists():
generate_cancellation(i)
order.create_transactions()
order_expired.send(order.event, order=order)
return order
def approve_order(order, user=None, send_mail: bool=True, auth=None, force=False):
"""
Mark this order as approved
:param order: The order to change
:param user: The user that performed the change
"""
with transaction.atomic():
if not order.require_approval or not order.status == Order.STATUS_PENDING:
raise OrderError(_('This order is not pending approval.'))
order.require_approval = False
order.set_expires(now(), order.event.subevents.filter(id__in=[p.subevent_id for p in order.positions.all()]))
order.save(update_fields=['require_approval', 'expires'])
order.create_transactions()
order.log_action('pretix.event.order.approved', user=user, auth=auth)
if order.total == Decimal('0.00'):
p = order.payments.create(
state=OrderPayment.PAYMENT_STATE_CREATED,
provider='free',
amount=0,
fee=None
)
try:
p.confirm(send_mail=False, count_waitinglist=False, user=user, auth=auth, ignore_date=True, force=force)
except Quota.QuotaExceededException:
raise OrderError(error_messages['unavailable'])
order_approved.send(order.event, order=order)
invoice = order.invoices.last() # Might be generated by plugin already
if order.event.settings.get('invoice_generate') == 'True' and invoice_qualified(order):
if not invoice:
invoice = generate_invoice(
order,
trigger_pdf=not order.event.settings.invoice_email_attachment or not order.email
)
# send_mail will trigger PDF generation later
if send_mail:
with language(order.locale, order.event.settings.region):
if order.total == Decimal('0.00'):
email_template = order.event.settings.mail_text_order_approved_free
email_subject = order.event.settings.mail_subject_order_approved_free
email_attendees = order.event.settings.mail_send_order_approved_free_attendee
email_attendee_template = order.event.settings.mail_text_order_approved_free_attendee
email_attendee_subject = order.event.settings.mail_subject_order_approved_free_attendee
else:
email_template = order.event.settings.mail_text_order_approved
email_subject = order.event.settings.mail_subject_order_approved
email_attendees = order.event.settings.mail_send_order_approved_attendee
email_attendee_template = order.event.settings.mail_text_order_approved_attendee
email_attendee_subject = order.event.settings.mail_subject_order_approved_attendee
email_context = get_email_context(event=order.event, order=order)
try:
order.send_mail(
email_subject, email_template, email_context,
'pretix.event.order.email.order_approved', user,
attach_tickets=True,
attach_ical=order.event.settings.mail_attach_ical and (
not order.event.settings.mail_attach_ical_paid_only or
order.total == Decimal('0.00') or
order.valid_if_pending
),
invoices=[invoice] if invoice and order.event.settings.invoice_email_attachment else []
)
except SendMailException:
logger.exception('Order approved email could not be sent')
if email_attendees:
for p in order.positions.all():
if p.addon_to_id is None and p.attendee_email and p.attendee_email != order.email:
email_attendee_context = get_email_context(event=order.event, order=order, position=p)
try:
p.send_mail(
email_attendee_subject, email_attendee_template, email_attendee_context,
'pretix.event.order.email.order_approved', user,
attach_tickets=True,
)
except SendMailException:
logger.exception('Order approved email could not be sent to attendee')
return order.pk
def deny_order(order, comment='', user=None, send_mail: bool=True, auth=None):
"""
Mark this order as canceled
:param order: The order to change
:param user: The user that performed the change
"""
with transaction.atomic():
if not order.require_approval or not order.status == Order.STATUS_PENDING:
raise OrderError(_('This order is not pending approval.'))
order.status = Order.STATUS_CANCELED
order.save(update_fields=['status'])
order.log_action('pretix.event.order.denied', user=user, auth=auth, data={
'comment': comment
})
i = order.invoices.filter(is_cancellation=False).last()
if i:
generate_cancellation(i)
for position in order.positions.all():
if position.voucher:
Voucher.objects.filter(pk=position.voucher.pk).update(redeemed=Greatest(0, F('redeemed') - 1))
order.create_transactions()
order_denied.send(order.event, order=order)
if send_mail:
with language(order.locale, order.event.settings.region):
email_template = order.event.settings.mail_text_order_denied
email_subject = order.event.settings.mail_subject_order_denied
email_context = get_email_context(event=order.event, order=order, comment=comment)
try:
order.send_mail(
email_subject, email_template, email_context,
'pretix.event.order.email.order_denied', user
)
except SendMailException:
logger.exception('Order denied email could not be sent')
return order.pk
def _cancel_order(order, user=None, send_mail: bool=True, api_token=None, device=None, oauth_application=None,
cancellation_fee=None, keep_fees=None, cancel_invoice=True, comment=None):
"""
Mark this order as canceled
:param order: The order to change
:param user: The user that performed the change
"""
# If new actions are added to this function, make sure to add the reverse operation to reactivate_order()
with transaction.atomic():
if isinstance(order, int):
order = Order.objects.select_for_update(of=OF_SELF).get(pk=order)
if isinstance(user, int):
user = User.objects.get(pk=user)
if isinstance(api_token, int):
api_token = TeamAPIToken.objects.get(pk=api_token)
if isinstance(device, int):
device = Device.objects.get(pk=device)
if isinstance(oauth_application, int):
oauth_application = OAuthApplication.objects.get(pk=oauth_application)
if isinstance(cancellation_fee, str):
cancellation_fee = Decimal(cancellation_fee)
if not order.cancel_allowed():
raise OrderError(_('You cannot cancel this order.'))
invoices = []
if cancel_invoice:
i = order.invoices.filter(is_cancellation=False).last()
if i and not i.refered.exists():
invoices.append(generate_cancellation(i))
for position in order.positions.all():
for gc in position.issued_gift_cards.all():
gc = GiftCard.objects.select_for_update(of=OF_SELF).get(pk=gc.pk)
if gc.value < position.price:
raise OrderError(
_('This order can not be canceled since the gift card {card} purchased in '
'this order has already been redeemed.').format(
card=gc.secret
)
)
else:
gc.transactions.create(value=-position.price, order=order, acceptor=order.event.organizer)
for m in position.granted_memberships.all():
m.canceled = True
m.save()
if cancellation_fee:
for position in order.positions.all():
if position.voucher:
Voucher.objects.filter(pk=position.voucher.pk).update(redeemed=Greatest(0, F('redeemed') - 1))
position.canceled = True
assign_ticket_secret(
event=order.event, position=position, force_invalidate_if_revokation_list_used=True, force_invalidate=False, save=False
)
position.save(update_fields=['canceled', 'secret'])
new_fee = cancellation_fee
for fee in order.fees.all():
if keep_fees and fee in keep_fees:
new_fee -= fee.value
else:
fee.canceled = True
fee.save(update_fields=['canceled'])
if new_fee:
f = OrderFee(
fee_type=OrderFee.FEE_TYPE_CANCELLATION,
value=new_fee,
tax_rule=order.event.settings.tax_rate_default,
order=order,
)
f._calculate_tax()
f.save()
if cancellation_fee > order.total:
raise OrderError(_('The cancellation fee cannot be higher than the total amount of this order.'))
elif order.payment_refund_sum < cancellation_fee:
order.status = Order.STATUS_PENDING
order.set_expires()
else:
order.status = Order.STATUS_PAID
order.total = cancellation_fee
order.cancellation_date = now()
order.save(update_fields=['status', 'cancellation_date', 'total'])
if cancel_invoice and i:
invoices.append(generate_invoice(order))
else:
order.status = Order.STATUS_CANCELED
order.cancellation_date = now()
order.save(update_fields=['status', 'cancellation_date'])
for position in order.positions.all():
assign_ticket_secret(
event=order.event, position=position, force_invalidate_if_revokation_list_used=True, force_invalidate=False, save=True
)
if position.voucher:
Voucher.objects.filter(pk=position.voucher.pk).update(redeemed=Greatest(0, F('redeemed') - 1))
order.log_action('pretix.event.order.canceled', user=user, auth=api_token or oauth_application or device,
data={'cancellation_fee': cancellation_fee, 'comment': comment})
order.cancellation_requests.all().delete()
order.create_transactions()
if send_mail:
with language(order.locale, order.event.settings.region):
email_template = order.event.settings.mail_text_order_canceled
email_subject = order.event.settings.mail_subject_order_canceled
email_context = get_email_context(event=order.event, order=order, comment=comment or "")
try:
order.send_mail(
email_subject, email_template, email_context,
'pretix.event.order.email.order_canceled', user,
invoices=invoices if order.event.settings.invoice_email_attachment else []
)
except SendMailException:
logger.exception('Order canceled email could not be sent')
for p in order.payments.filter(state__in=(OrderPayment.PAYMENT_STATE_CREATED, OrderPayment.PAYMENT_STATE_PENDING)):
try:
with transaction.atomic():
p.payment_provider.cancel_payment(p)
order.log_action(
'pretix.event.order.payment.canceled',
{
'local_id': p.local_id,
'provider': p.provider,
},
user=user,
auth=api_token or oauth_application or device
)
except PaymentException as e:
order.log_action(
'pretix.event.order.payment.canceled.failed',
{
'local_id': p.local_id,
'provider': p.provider,
'error': str(e)
},
user=user,
auth=api_token or oauth_application or device
)
order_canceled.send(order.event, order=order)
return order.pk
def _check_date(event: Event, now_dt: datetime):
if event.presale_start and now_dt < event.presale_start:
raise OrderError(error_messages['not_started'])
if event.presale_has_ended:
raise OrderError(error_messages['ended'])
if not event.has_subevents:
tlv = event.settings.get('payment_term_last', as_type=RelativeDateWrapper)
if tlv:
term_last = make_aware(datetime.combine(
tlv.datetime(event).date(),
time(hour=23, minute=59, second=59)
), event.timezone)
if term_last < now_dt:
raise OrderError(error_messages['ended'])
def _check_positions(event: Event, now_dt: datetime, time_machine_now_dt: datetime, positions: List[CartPosition],
sales_channel: SalesChannel, address: InvoiceAddress=None, customer=None):
err = None
_check_date(event, time_machine_now_dt)
products_seen = Counter()
q_avail = Counter()
v_avail = Counter()
v_usages = Counter()
v_budget = {}
deleted_positions = set()
seats_seen = set()
def delete(cp):
# Delete a cart position, including parents and children, if applicable
if cp.is_bundled:
delete(cp.addon_to)
else:
for p in cp.addons.all():
deleted_positions.add(p.pk)
p.delete()
deleted_positions.add(cp.pk)
cp.delete()
sorted_positions = sorted(positions, key=lambda c: (-int(c.is_bundled), c.pk))
for cp in sorted_positions:
cp._cached_quotas = list(cp.quotas)
# Create locks
if any(cp.expires < now() + timedelta(seconds=LOCK_TRUST_WINDOW) for cp in sorted_positions):
# No need to perform any locking if the cart positions still guarantee everything long enough.
full_lock_required = any(
getattr(o, 'seat', False) for o in sorted_positions
) and event.settings.seating_minimal_distance > 0
if full_lock_required:
# We lock the entire event in this case since we don't want to deal with fine-granular locking
# in the case of seating distance enforcement
lock_objects([event])
else:
lock_objects(
[q for q in reduce(operator.or_, (set(cp._cached_quotas) for cp in sorted_positions), set()) if q.size is not None] +
[op.voucher for op in sorted_positions if op.voucher] +
[op.seat for op in sorted_positions if op.seat],
shared_lock_objects=[event]
)
# Check availability
for i, cp in enumerate(sorted_positions):
if cp.pk in deleted_positions:
continue
if not cp.item.is_available() or (cp.variation and not cp.variation.is_available()):
err = err or error_messages['unavailable']
delete(cp)
continue
quotas = cp._cached_quotas
products_seen[cp.item] += 1
if cp.item.max_per_order and products_seen[cp.item] > cp.item.max_per_order:
err = error_messages['max_items_per_product'] % {
'max': cp.item.max_per_order,
'product': cp.item.name
}
delete(cp)
break
if cp.voucher:
v_usages[cp.voucher] += 1
if cp.voucher not in v_avail:
cp.voucher.refresh_from_db(fields=['redeemed'])
redeemed_in_carts = CartPosition.objects.filter(
Q(voucher=cp.voucher) & Q(event=event) & Q(expires__gte=now_dt)
).exclude(cart_id=cp.cart_id)
v_avail[cp.voucher] = cp.voucher.max_usages - cp.voucher.redeemed - redeemed_in_carts.count()
v_avail[cp.voucher] -= 1
if v_avail[cp.voucher] < 0:
err = err or error_messages['voucher_redeemed']
delete(cp)
continue
if cp.subevent and cp.subevent.presale_start and time_machine_now_dt < cp.subevent.presale_start:
err = err or error_messages['some_subevent_not_started']
delete(cp)
break
if cp.subevent:
tlv = event.settings.get('payment_term_last', as_type=RelativeDateWrapper)
if tlv:
term_last = make_aware(datetime.combine(
tlv.datetime(cp.subevent).date(),
time(hour=23, minute=59, second=59)
), event.timezone)
if term_last < time_machine_now_dt:
err = err or error_messages['some_subevent_ended']
delete(cp)
break
if cp.subevent and cp.subevent.presale_has_ended:
err = err or error_messages['some_subevent_ended']
delete(cp)
break
if (cp.requires_seat and not cp.seat) or (cp.seat and not cp.requires_seat) or (cp.seat and cp.seat.product != cp.item) or cp.seat in seats_seen:
err = err or error_messages['seat_invalid']
delete(cp)
break
if cp.seat:
seats_seen.add(cp.seat)
if cp.item.require_voucher and cp.voucher is None and not cp.is_bundled:
delete(cp)
err = err or error_messages['voucher_required']
break
if (cp.item.hide_without_voucher or (cp.variation and cp.variation.hide_without_voucher)) and (
cp.voucher is None or not cp.voucher.show_hidden_items or not cp.voucher.applies_to(cp.item, cp.variation)
) and not cp.is_bundled:
delete(cp)
err = error_messages['voucher_required']
break
if cp.seat:
# Unlike quotas (which we blindly trust as long as the position is not expired), we check seats every
# time, since we absolutely can not overbook a seat.
if not cp.seat.is_available(ignore_cart=cp, ignore_voucher_id=cp.voucher_id, sales_channel=sales_channel.identifier):
err = err or error_messages['seat_unavailable']
delete(cp)
continue
if cp.expires >= now_dt and not cp.voucher:
# Other checks are not necessary
continue
if len(quotas) == 0:
err = err or error_messages['unavailable']
delete(cp)
continue
if cp.subevent and cp.item.pk in cp.subevent.item_overrides and not cp.subevent.item_overrides[cp.item.pk].is_available(time_machine_now_dt):
err = err or error_messages['unavailable']
delete(cp)
continue
if cp.subevent and cp.variation and cp.variation.pk in cp.subevent.var_overrides and \
not cp.subevent.var_overrides[cp.variation.pk].is_available(time_machine_now_dt):
err = err or error_messages['unavailable']
delete(cp)
continue
if cp.voucher:
if cp.voucher.valid_until and cp.voucher.valid_until < time_machine_now_dt:
err = err or error_messages['voucher_expired']
delete(cp)
continue
quota_ok = True
ignore_all_quotas = cp.expires >= now_dt or (
cp.voucher and (
cp.voucher.allow_ignore_quota or (cp.voucher.block_quota and cp.voucher.quota is None)
)
)
if not ignore_all_quotas:
for quota in quotas:
if cp.voucher and cp.voucher.block_quota and cp.voucher.quota_id == quota.pk:
continue
if quota not in q_avail:
avail = quota.availability(now_dt)
q_avail[quota] = avail[1] if avail[1] is not None else sys.maxsize
q_avail[quota] -= 1
if q_avail[quota] < 0:
err = err or error_messages['unavailable']
quota_ok = False
break
if not quota_ok:
# Sorry, can't let you keep that!
delete(cp)
for voucher, cnt in v_usages.items():
if 0 < cnt < voucher.min_usages_remaining:
raise OrderError(error_messages['voucher_min_usages'] % {
'voucher': voucher.code,
'number': voucher.min_usages_remaining,
})
# Check prices
sorted_positions = [cp for cp in sorted_positions if cp.pk and cp.pk not in deleted_positions]
old_total = sum(cp.price for cp in sorted_positions)
for i, cp in enumerate(sorted_positions):
if cp.listed_price is None:
# migration from pre-discount cart positions
cp.update_listed_price_and_voucher(max_discount=None)
cp.migrate_free_price_if_necessary()
# deal with max discount
max_discount = None
if cp.voucher and cp.voucher.budget is not None:
if cp.voucher not in v_budget:
v_budget[cp.voucher] = cp.voucher.budget - cp.voucher.budget_used()
max_discount = max(v_budget[cp.voucher], 0)
if cp.expires < now_dt or cp.listed_price is None:
# Guarantee on listed price is expired
cp.update_listed_price_and_voucher(max_discount=max_discount)
elif cp.voucher:
cp.update_listed_price_and_voucher(max_discount=max_discount, voucher_only=True)
if max_discount is not None:
v_budget[cp.voucher] = v_budget[cp.voucher] - (cp.listed_price - cp.price_after_voucher)
try:
cp.update_line_price(address, [b for b in sorted_positions if b.addon_to_id == cp.pk and b.is_bundled and b.pk and b.pk not in deleted_positions])
except TaxRule.SaleNotAllowed:
err = err or error_messages['country_blocked']
delete(cp)
continue
sorted_positions = [cp for cp in sorted_positions if cp.pk and cp.pk not in deleted_positions]
discount_results = apply_discounts(
event,
sales_channel.identifier,
[
(cp.item_id, cp.subevent_id, cp.line_price_gross, bool(cp.addon_to), cp.is_bundled, cp.listed_price - cp.price_after_voucher)
for cp in sorted_positions
]
)
for cp, (new_price, discount) in zip(sorted_positions, discount_results):
if cp.price != new_price or cp.discount_id != (discount.pk if discount else None):
cp.price = new_price
cp.discount = discount
cp.save(update_fields=['price', 'discount'])
# After applying discounts, add-on positions might still have a reference to the *old* version of the
# parent position, which can screw up ordering later since the system sees inconsistent data.
by_id = {cp.pk: cp for cp in sorted_positions}
for cp in sorted_positions:
if cp.addon_to_id:
cp.addon_to = by_id[cp.addon_to_id]
new_total = sum(cp.price for cp in sorted_positions)
if old_total != new_total:
err = err or error_messages['price_changed']
# Store updated positions
for cp in sorted_positions:
cp.expires = now_dt + timedelta(
minutes=event.settings.get('reservation_time', as_type=int))
cp.save(update_fields=['expires'])
if err:
raise OrderError(err)
def _get_fees(positions: List[CartPosition], payment_requests: List[dict], address: InvoiceAddress,
meta_info: dict, event: Event, require_approval=False):
fees = []
total = sum([c.price for c in positions])
gift_cards = [] # for backwards compatibility
for p in payment_requests:
if p['provider'] == 'giftcard':
gift_cards.append(GiftCard.objects.get(pk=p['info_data']['gift_card']))
for recv, resp in order_fee_calculation.send(sender=event, invoice_address=address, total=total, payment_requests=payment_requests,
meta_info=meta_info, positions=positions, gift_cards=gift_cards):
if resp:
fees += resp
total += sum(f.value for f in fees)
total_remaining = total
for p in payment_requests:
# This algorithm of treating min/max values and fees needs to stay in sync between the following
# places in the code base:
# - pretix.base.services.cart.get_fees
# - pretix.base.services.orders._get_fees
# - pretix.presale.views.CartMixin.current_selected_payments
if p.get('min_value') and total_remaining < Decimal(p['min_value']):
p['payment_amount'] = Decimal('0.00')
continue
to_pay = total_remaining
if p.get('max_value') and to_pay > Decimal(p['max_value']):
to_pay = min(to_pay, Decimal(p['max_value']))
payment_fee = p['pprov'].calculate_fee(to_pay)
total_remaining += payment_fee
to_pay += payment_fee
if p.get('max_value') and to_pay > Decimal(p['max_value']):
to_pay = min(to_pay, Decimal(p['max_value']))
total_remaining -= to_pay
p['payment_amount'] = to_pay
if payment_fee:
pf = OrderFee(fee_type=OrderFee.FEE_TYPE_PAYMENT, value=payment_fee,
internal_type=p['pprov'].identifier)
fees.append(pf)
p['fee'] = pf
if total_remaining != Decimal('0.00') and not require_approval:
raise OrderError(_("The selected payment methods do not cover the total balance."))
return fees
def _create_order(event: Event, *, email: str, positions: List[CartPosition], now_dt: datetime,
payment_requests: List[dict], sales_channel: SalesChannel, locale: str=None,
address: InvoiceAddress=None, meta_info: dict=None, shown_total=None,
customer=None, valid_if_pending=False):
payments = []
try:
validate_memberships_in_order(customer, positions, event, lock=True, testmode=event.testmode)
except ValidationError as e:
raise OrderError(e.message)
require_approval = any(p.requires_approval(invoice_address=address) for p in positions)
try:
fees = _get_fees(positions, payment_requests, address, meta_info, event, require_approval=require_approval)
except TaxRule.SaleNotAllowed:
raise OrderError(error_messages['country_blocked'])
total = pending_sum = sum([c.price for c in positions]) + sum([c.value for c in fees])
order = Order(
status=Order.STATUS_PENDING,
event=event,
email=email,
phone=(meta_info or {}).get('contact_form_data', {}).get('phone'),
datetime=now_dt,
locale=get_language_without_region(locale),
total=total,
testmode=True if sales_channel.type_instance.testmode_supported and event.testmode else False,
meta_info=json.dumps(meta_info or {}),
require_approval=require_approval,
sales_channel=sales_channel,
customer=customer,
valid_if_pending=valid_if_pending,
)
if customer:
order.email_known_to_work = customer.is_verified
order.set_expires(now_dt, event.subevents.filter(id__in=[p.subevent_id for p in positions]))
order.save()
if address:
if address.order is not None:
address.pk = None
address.order = order
address.save()
for fee in fees:
fee.order = order
try:
fee._calculate_tax()
except TaxRule.SaleNotAllowed:
raise OrderError(error_messages['country_blocked'])
if fee.tax_rule and not fee.tax_rule.pk:
fee.tax_rule = None # TODO: deprecate
fee.save()
# Safety check: Is the amount we're now going to charge the same amount the user has been shown when they
# pressed "Confirm purchase"? If not, we should better warn the user and show the confirmation page again.
# We used to have a *known* case where this happened is if a gift card is used in two concurrent sessions,
# but this is now a payment error instead. So currently this code branch is usually only triggered by bugs
# in other places (e.g. tax calculation).
if shown_total is not None:
if Decimal(shown_total) != pending_sum:
raise OrderError(
_('While trying to place your order, we noticed that the order total has changed. Either one of '
'the prices changed just now, or a gift card you used has been used in the meantime. Please '
'check the prices below and try again.')
)
if payment_requests and not order.require_approval:
for p in payment_requests:
if not p.get('multi_use_supported') or p['payment_amount'] > Decimal('0.00'):
payments.append(order.payments.create(
state=OrderPayment.PAYMENT_STATE_CREATED,
provider=p['provider'],
amount=p['payment_amount'],
fee=p.get('fee'),
info=json.dumps(p['info_data']),
process_initiated=False,
))
orderpositions = OrderPosition.transform_cart_positions(positions, order)
order.create_transactions(positions=orderpositions, fees=fees, is_new=True)
order.log_action('pretix.event.order.placed')
if order.require_approval:
order.log_action('pretix.event.order.placed.require_approval')
if meta_info:
for msg in meta_info.get('confirm_messages', []):
order.log_action('pretix.event.order.consent', data={'msg': msg})
order_placed.send(event, order=order)
return order, payments
def _order_placed_email(event: Event, order: Order, email_template, subject_template,
log_entry: str, invoice, payments: List[OrderPayment], is_free=False):
email_context = get_email_context(event=event, order=order, payments=payments)
try:
order.send_mail(
subject_template, email_template, email_context,
log_entry,
invoices=[invoice] if invoice and event.settings.invoice_email_attachment else [],
attach_tickets=True,
attach_ical=event.settings.mail_attach_ical and (
not event.settings.mail_attach_ical_paid_only or
is_free or
order.valid_if_pending
),
attach_other_files=[a for a in [
event.settings.get('mail_attachment_new_order', as_type=str, default='')[len('file://'):]
] if a],
)
except SendMailException:
logger.exception('Order received email could not be sent')
def _order_placed_email_attendee(event: Event, order: Order, position: OrderPosition, email_template, subject_template,
log_entry: str, is_free=False):
email_context = get_email_context(event=event, order=order, position=position)
try:
position.send_mail(
subject_template, email_template, email_context,
log_entry,
invoices=[],
attach_tickets=True,
attach_ical=event.settings.mail_attach_ical and (
not event.settings.mail_attach_ical_paid_only or
is_free or
order.valid_if_pending
),
attach_other_files=[a for a in [
event.settings.get('mail_attachment_new_order', as_type=str, default='')[len('file://'):]
] if a],
)
except SendMailException:
logger.exception('Order received email could not be sent to attendee')
def _perform_order(event: Event, payment_requests: List[dict], position_ids: List[str],
email: str, locale: str, address: int, meta_info: dict=None, sales_channel: str='web',
shown_total=None, customer=None):
for p in payment_requests:
p['pprov'] = event.get_payment_providers(cached=True)[p['provider']]
if not p['pprov']:
raise OrderError(error_messages['internal'])
if customer:
customer = event.organizer.customers.get(pk=customer)
try:
sales_channel = event.organizer.sales_channels.get(identifier=sales_channel)
except SalesChannel.DoesNotExist:
raise OrderError("Invalid sales channel.")
if email == settings.PRETIX_EMAIL_NONE_VALUE:
email = None
addr = None
if address is not None:
try:
with scopes_disabled():
addr = InvoiceAddress.objects.get(pk=address)
except InvoiceAddress.DoesNotExist:
pass
requires_seat = Exists(
SeatCategoryMapping.objects.filter(
Q(product=OuterRef('item'))
& (Q(subevent=OuterRef('subevent')) if event.has_subevents else Q(subevent__isnull=True))
)
)
if not event.settings.seating_choice:
requires_seat = Value(0, output_field=IntegerField())
positions = CartPosition.objects.annotate(
requires_seat=requires_seat
).filter(
id__in=position_ids, event=event
)
if shown_total is not None and Decimal(shown_total) > Decimal("0.00") and event.currency == "XXX":
raise OrderError(error_messages['currency_XXX'])
validate_order.send(
event,
payment_provider=payment_requests[0]['provider'] if payment_requests else None, # only for backwards compatibility
payments=payment_requests,
email=email,
positions=positions,
locale=locale,
invoice_address=addr,
meta_info=meta_info,
customer=customer,
)
valid_if_pending = False
for recv, result in order_valid_if_pending.send(
event,
payments=payment_requests,
email=email,
positions=positions,
locale=locale,
invoice_address=addr,
meta_info=meta_info,
customer=customer,
):
if result:
valid_if_pending = True
warnings = []
any_payment_failed = False
real_now_dt = now()
time_machine_now_dt = time_machine_now(real_now_dt)
err_out = None
with transaction.atomic(durable=True):
positions = list(
positions.select_related('item', 'variation', 'subevent', 'seat', 'addon_to').prefetch_related('addons')
)
positions.sort(key=lambda c: c.sort_key)
if len(positions) == 0:
raise OrderError(error_messages['empty'])
if len(position_ids) != len(positions):
raise OrderError(error_messages['internal'])
try:
_check_positions(event, real_now_dt, time_machine_now_dt, positions,
address=addr, sales_channel=sales_channel, customer=customer)
except OrderError as e:
err_out = e # Don't raise directly to make sure transaction is committed, as it might have deleted things
else:
if 'sleep-after-quota-check' in debugflags_var.get():
sleep(2)
order, payment_objs = _create_order(
event,
email=email,
positions=positions,
now_dt=real_now_dt,
payment_requests=payment_requests,
locale=locale,
address=addr,
meta_info=meta_info,
sales_channel=sales_channel,
shown_total=shown_total,
customer=customer,
valid_if_pending=valid_if_pending
)
try:
for p in payment_objs:
if p.provider == 'free':
# Passing lock=False is safe here because it's absolutely impossible for the order to be expired
# here before it is even committed.
p.confirm(send_mail=False, lock=False, generate_invoice=False)
except Quota.QuotaExceededException:
pass
if err_out:
raise err_out
# We give special treatment to GiftCardPayment here because our invoice renderer expects gift cards to already be
# processed, and because we historically treat gift card orders like free orders with regards to email texts.
# It would be great to give external gift card plugins the same special treatment, but it feels to risky for now, as
# (a) there would be no email at all if the plugin fails in a weird way and (b) we'd be able to run into
# contradictions when a plugin set both execute_payment_needs_user=False as well as requires_invoice_immediately=True
for p in payment_objs:
if isinstance(p.payment_provider, GiftCardPayment):
try:
p.process_initiated = True
p.save(update_fields=['process_initiated'])
p.payment_provider.execute_payment(None, p, is_early_special_case=True)
except PaymentException as e:
warnings.append(str(e))
any_payment_failed = True
except Exception:
logger.exception('Error during payment attempt')
else:
order.refresh_from_db()
pending_sum = order.pending_sum
free_order_flow = (
payment_objs and
(
any(p['provider'] == 'free' for p in payment_requests) or
all(p['provider'] == 'giftcard' for p in payment_requests)
) and
pending_sum == Decimal('0.00') and
not order.require_approval
)
invoice = order.invoices.last() # Might be generated by plugin already
if not invoice and invoice_qualified(order):
invoice_required = (
event.settings.get('invoice_generate') == 'True' or (
event.settings.get('invoice_generate') == 'paid' and (
any(p['pprov'].requires_invoice_immediately for p in payment_requests) or
pending_sum <= Decimal('0.00')
)
)
)
if invoice_required:
invoice = generate_invoice(
order,
trigger_pdf=not event.settings.invoice_email_attachment or not order.email
)
# send_mail will trigger PDF generation later
if order.email:
if order.require_approval:
email_template = event.settings.mail_text_order_placed_require_approval
subject_template = event.settings.mail_subject_order_placed_require_approval
log_entry = 'pretix.event.order.email.order_placed_require_approval'
email_attendees = False
elif free_order_flow:
email_template = event.settings.mail_text_order_free
subject_template = event.settings.mail_subject_order_free
log_entry = 'pretix.event.order.email.order_free'
email_attendees = event.settings.mail_send_order_free_attendee
email_attendees_template = event.settings.mail_text_order_free_attendee
subject_attendees_template = event.settings.mail_subject_order_free_attendee
else:
email_template = event.settings.mail_text_order_placed
subject_template = event.settings.mail_subject_order_placed
log_entry = 'pretix.event.order.email.order_placed'
email_attendees = event.settings.mail_send_order_placed_attendee
email_attendees_template = event.settings.mail_text_order_placed_attendee
subject_attendees_template = event.settings.mail_subject_order_placed_attendee
if sales_channel.identifier in event.settings.mail_sales_channel_placed_paid:
_order_placed_email(event, order, email_template, subject_template, log_entry, invoice, payment_objs,
is_free=free_order_flow)
if email_attendees:
for p in order.positions.all():
if p.addon_to_id is None and p.attendee_email and p.attendee_email != order.email:
_order_placed_email_attendee(event, order, p, email_attendees_template, subject_attendees_template, log_entry,
is_free=free_order_flow)
if not any_payment_failed:
for p in payment_objs:
if not p.payment_provider.execute_payment_needs_user and not p.process_initiated:
try:
p.process_initiated = True
p.save(update_fields=['process_initiated'])
resp = p.payment_provider.execute_payment(None, p)
if isinstance(resp, str):
logger.warning('Payment provider returned URL from execute_payment even though execute_payment_needs_user is not set')
except PaymentException as e:
warnings.append(str(e))
any_payment_failed = True
except Exception:
logger.exception('Error during payment attempt')
if any_payment_failed:
# Cancel all other payments because their amount might be wrong now.
for p in payment_objs:
if p.state == OrderPayment.PAYMENT_STATE_CREATED:
p.state = OrderPayment.PAYMENT_STATE_CANCELED
p.save(update_fields=['state'])
return {
'order_id': order.id,
'warnings': warnings,
}
@receiver(signal=periodic_task)
@scopes_disabled()
def expire_orders(sender, **kwargs):
event_id = None
expire = None
qs = Order.objects.filter(
expires__lt=now(),
status=Order.STATUS_PENDING,
valid_if_pending=False,
require_approval=False
).exclude(
Exists(
OrderFee.objects.filter(order_id=OuterRef('pk'), fee_type=OrderFee.FEE_TYPE_CANCELLATION)
)
).prefetch_related('event').order_by('event_id')
for o in qs:
if o.event_id != event_id:
expire = o.event.settings.get('payment_term_expire_automatically', as_type=bool)
event_id = o.event_id
if expire and now() >= o.payment_term_expire_date:
mark_order_expired(o)
@receiver(signal=periodic_task)
@scopes_disabled()
@minimum_interval(minutes_after_success=60)
def send_expiry_warnings(sender, **kwargs):
today = now().replace(hour=0, minute=0, second=0)
days = None
settings = None
event_id = None
for o in Order.objects.filter(
expires__gte=today, expiry_reminder_sent=False, status=Order.STATUS_PENDING,
datetime__lte=now() - timedelta(hours=2), require_approval=False
).only('pk', 'event_id', 'expires').order_by('event_id'):
lp = o.payments.last()
if (
lp and
lp.state in [OrderPayment.PAYMENT_STATE_CREATED, OrderPayment.PAYMENT_STATE_PENDING] and
lp.payment_provider and
lp.payment_provider.prevent_reminder_mail(o, lp)
):
continue
if event_id != o.event_id:
settings = o.event.settings
days = cache.get_or_set('{}:{}:setting_mail_days_order_expire_warning'.format('event', o.event_id),
default=lambda: settings.get('mail_days_order_expire_warning', as_type=int),
timeout=3600)
event_id = o.event_id
if days and (o.expires - today).days <= days:
with transaction.atomic():
o = Order.objects.select_related('event').select_for_update(of=OF_SELF).get(pk=o.pk)
if o.status != Order.STATUS_PENDING or o.expiry_reminder_sent:
# Race condition
continue
with language(o.locale, settings.region):
o.expiry_reminder_sent = True
o.save(update_fields=['expiry_reminder_sent'])
email_context = get_email_context(event=o.event, order=o)
can_autoexpire = (
settings.payment_term_expire_automatically and
not o.valid_if_pending and
not o.fees.filter(fee_type=OrderFee.FEE_TYPE_CANCELLATION).exists()
)
if can_autoexpire:
email_template = settings.mail_text_order_expire_warning
email_subject = settings.mail_subject_order_expire_warning
else:
email_template = settings.mail_text_order_pending_warning
email_subject = settings.mail_subject_order_pending_warning
try:
o.send_mail(
email_subject, email_template, email_context,
'pretix.event.order.email.expire_warning_sent'
)
except SendMailException:
logger.exception('Reminder email could not be sent')
@receiver(signal=periodic_task)
@scopes_disabled()
def send_download_reminders(sender, **kwargs):
today = now().replace(hour=0, minute=0, second=0, microsecond=0)
qs = Order.objects.annotate(
first_date=Coalesce(
Min('all_positions__subevent__date_from'),
F('event__date_from')
)
).filter(
download_reminder_sent=False,
datetime__lte=now() - timedelta(hours=2),
first_date__gte=today,
).only(
'pk', 'event_id', 'sales_channel', 'datetime',
).order_by('event_id')
event_id = None
days = None
event = None
for o in qs:
if o.event_id != event_id:
days = o.event.settings.get('mail_days_download_reminder', as_type=int)
event = o.event
event_id = o.event_id
if days is None:
continue
if o.sales_channel.identifier not in event.settings.mail_sales_channel_download_reminder:
continue
reminder_date = (o.first_date - timedelta(days=days)).replace(hour=0, minute=0, second=0, microsecond=0)
if now() < reminder_date or o.datetime > reminder_date:
continue
with transaction.atomic():
o = Order.objects.select_for_update(of=OF_SELF).get(pk=o.pk)
if o.download_reminder_sent:
# Race condition
continue
positions = list(o.positions_with_tickets)
if not positions:
continue
if not o.ticket_download_available:
continue
if o.status != Order.STATUS_PAID:
if o.status != Order.STATUS_PENDING or o.require_approval or (not o.valid_if_pending and not o.event.settings.ticket_download_pending):
continue
with language(o.locale, o.event.settings.region):
o.download_reminder_sent = True
o.save(update_fields=['download_reminder_sent'])
email_template = event.settings.mail_text_download_reminder
email_subject = event.settings.mail_subject_download_reminder
email_context = get_email_context(event=event, order=o)
try:
o.send_mail(
email_subject, email_template, email_context,
'pretix.event.order.email.download_reminder_sent',
attach_tickets=True
)
except SendMailException:
logger.exception('Reminder email could not be sent')
if event.settings.mail_send_download_reminder_attendee:
for p in positions:
if p.subevent_id:
reminder_date = (p.subevent.date_from - timedelta(days=days)).replace(
hour=0, minute=0, second=0, microsecond=0
)
if now() < reminder_date:
continue
if p.addon_to_id is None and p.attendee_email and p.attendee_email != o.email:
email_template = event.settings.mail_text_download_reminder_attendee
email_subject = event.settings.mail_subject_download_reminder_attendee
email_context = get_email_context(event=event, order=o, position=p)
try:
o.send_mail(
email_subject, email_template, email_context,
'pretix.event.order.email.download_reminder_sent',
attach_tickets=True, position=p
)
except SendMailException:
logger.exception('Reminder email could not be sent to attendee')
def notify_user_changed_order(order, user=None, auth=None, invoices=[]):
with language(order.locale, order.event.settings.region):
email_template = order.event.settings.mail_text_order_changed
email_context = get_email_context(event=order.event, order=order)
email_subject = order.event.settings.mail_subject_order_changed
try:
order.send_mail(
email_subject, email_template, email_context,
'pretix.event.order.email.order_changed', user, auth=auth, invoices=invoices, attach_tickets=True,
)
except SendMailException:
logger.exception('Order changed email could not be sent')
class OrderChangeManager:
error_messages = {
'product_without_variation': gettext_lazy('You need to select a variation of the product.'),
'quota': gettext_lazy('The quota {name} does not have enough capacity left to perform the operation.'),
'quota_missing': gettext_lazy('There is no quota defined that allows this operation.'),
'product_invalid': gettext_lazy('The selected product is not active or has no price set.'),
'complete_cancel': gettext_lazy('This operation would leave the order empty. Please cancel the order itself instead.'),
'paid_to_free_exceeded': gettext_lazy(
'This operation would make the order free and therefore immediately paid, however '
'no quota is available.'
),
'addon_to_required': gettext_lazy('This is an add-on product, please select the base position it should be added to.'),
'addon_invalid': gettext_lazy('The selected base position does not allow you to add this product as an add-on.'),
'subevent_required': gettext_lazy('You need to choose a subevent for the new position.'),
'seat_unavailable': gettext_lazy('The selected seat "{seat}" is not available.'),
'seat_subevent_mismatch': gettext_lazy(
'You selected seat "{seat}" for a date that does not match the selected ticket date. Please choose a seat again.'
),
'seat_required': gettext_lazy('The selected product requires you to select a seat.'),
'seat_forbidden': gettext_lazy('The selected product does not allow to select a seat.'),
'tax_rule_country_blocked': gettext_lazy('The selected country is blocked by your tax rule.'),
'gift_card_change': gettext_lazy('You cannot change the price of a position that has been used to issue a gift card.'),
'max_items_per_product': ngettext_lazy(
"You cannot select more than %(max)s item of the product %(product)s.",
"You cannot select more than %(max)s items of the product %(product)s.",
"max"
),
'min_items_per_product': ngettext_lazy(
"You need to select at least %(min)s item of the product %(product)s.",
"You need to select at least %(min)s items of the product %(product)s.",
"min"
),
'max_order_size': gettext_lazy('Orders cannot have more than %(max)s positions.'),
}
ItemOperation = namedtuple('ItemOperation', ('position', 'item', 'variation'))
SubeventOperation = namedtuple('SubeventOperation', ('position', 'subevent'))
SeatOperation = namedtuple('SubeventOperation', ('position', 'seat'))
PriceOperation = namedtuple('PriceOperation', ('position', 'price', 'price_diff'))
TaxRuleOperation = namedtuple('TaxRuleOperation', ('position', 'tax_rule'))
MembershipOperation = namedtuple('MembershipOperation', ('position', 'membership'))
CancelOperation = namedtuple('CancelOperation', ('position', 'price_diff'))
AddOperation = namedtuple('AddOperation', ('item', 'variation', 'price', 'addon_to', 'subevent', 'seat', 'membership',
'valid_from', 'valid_until', 'is_bundled'))
SplitOperation = namedtuple('SplitOperation', ('position',))
FeeValueOperation = namedtuple('FeeValueOperation', ('fee', 'value', 'price_diff'))
AddFeeOperation = namedtuple('AddFeeOperation', ('fee', 'price_diff'))
CancelFeeOperation = namedtuple('CancelFeeOperation', ('fee', 'price_diff'))
RegenerateSecretOperation = namedtuple('RegenerateSecretOperation', ('position',))
ChangeValidFromOperation = namedtuple('ChangeValidFromOperation', ('position', 'valid_from'))
ChangeValidUntilOperation = namedtuple('ChangeValidUntilOperation', ('position', 'valid_until'))
AddBlockOperation = namedtuple('AddBlockOperation', ('position', 'block_name', 'ignore_from_quota_while_blocked'))
RemoveBlockOperation = namedtuple('RemoveBlockOperation', ('position', 'block_name', 'ignore_from_quota_while_blocked'))
def __init__(self, order: Order, user=None, auth=None, notify=True, reissue_invoice=True):
self.order = order
self.user = user
self.auth = auth
self.event = order.event
self.split_order = None
self.reissue_invoice = reissue_invoice
self._committed = False
self._totaldiff = 0
self._quotadiff = Counter()
self._seatdiff = Counter()
self._operations = []
self.notify = notify
self._invoice_dirty = False
self._invoices = []
def change_item(self, position: OrderPosition, item: Item, variation: Optional[ItemVariation]):
if (not variation and item.has_variations) or (variation and variation.item_id != item.pk):
raise OrderError(self.error_messages['product_without_variation'])
new_quotas = (variation.quotas.filter(subevent=position.subevent)
if variation else item.quotas.filter(subevent=position.subevent))
if not new_quotas:
raise OrderError(self.error_messages['quota_missing'])
self._quotadiff.update(new_quotas)
self._quotadiff.subtract(position.quotas)
self._operations.append(self.ItemOperation(position, item, variation))
def change_seat(self, position: OrderPosition, seat: Optional[Seat]):
if isinstance(seat, str):
subev = None
if self.event.has_subevents:
subev = position.subevent
for p in self._operations:
if isinstance(p, self.SubeventOperation) and p.position == position:
subev = p.subevent
try:
seat = Seat.objects.get(
event=self.event,
subevent=subev,
seat_guid=seat
)
except Seat.DoesNotExist:
raise OrderError(error_messages['seat_invalid'])
if position.seat:
self._seatdiff.subtract([position.seat])
if seat:
self._seatdiff.update([seat])
self._operations.append(self.SeatOperation(position, seat))
def change_membership(self, position: OrderPosition, membership: Membership):
self._operations.append(self.MembershipOperation(position, membership))
def change_subevent(self, position: OrderPosition, subevent: SubEvent):
try:
price = get_price(position.item, position.variation, voucher=position.voucher, subevent=subevent,
invoice_address=self._invoice_address)
except TaxRule.SaleNotAllowed:
raise OrderError(self.error_messages['tax_rule_country_blocked'])
if price is None: # NOQA
raise OrderError(self.error_messages['product_invalid'])
new_quotas = (position.variation.quotas.filter(subevent=subevent)
if position.variation else position.item.quotas.filter(subevent=subevent))
if not new_quotas:
raise OrderError(self.error_messages['quota_missing'])
self._quotadiff.update(new_quotas)
self._quotadiff.subtract(position.quotas)
self._operations.append(self.SubeventOperation(position, subevent))
self._invoice_dirty = True
def change_item_and_subevent(self, position: OrderPosition, item: Item, variation: Optional[ItemVariation],
subevent: SubEvent):
if (not variation and item.has_variations) or (variation and variation.item_id != item.pk):
raise OrderError(self.error_messages['product_without_variation'])
try:
price = get_price(item, variation, voucher=position.voucher, subevent=subevent,
invoice_address=self._invoice_address)
except TaxRule.SaleNotAllowed:
raise OrderError(self.error_messages['tax_rule_country_blocked'])
if price is None: # NOQA
raise OrderError(self.error_messages['product_invalid'])
new_quotas = (variation.quotas.filter(subevent=subevent)
if variation else item.quotas.filter(subevent=subevent))
if not new_quotas:
raise OrderError(self.error_messages['quota_missing'])
self._quotadiff.update(new_quotas)
self._quotadiff.subtract(position.quotas)
self._operations.append(self.ItemOperation(position, item, variation))
self._operations.append(self.SubeventOperation(position, subevent))
self._invoice_dirty = True
def regenerate_secret(self, position: OrderPosition):
self._operations.append(self.RegenerateSecretOperation(position))
def change_valid_from(self, position: OrderPosition, new_value: datetime):
self._operations.append(self.ChangeValidFromOperation(position, new_value))
def change_valid_until(self, position: OrderPosition, new_value: datetime):
self._operations.append(self.ChangeValidUntilOperation(position, new_value))
def add_block(self, position: OrderPosition, block_name: str, ignore_from_quota_while_blocked=None):
self._operations.append(self.AddBlockOperation(position, block_name, ignore_from_quota_while_blocked))
def remove_block(self, position: OrderPosition, block_name: str, ignore_from_quota_while_blocked=None):
self._operations.append(self.RemoveBlockOperation(position, block_name, ignore_from_quota_while_blocked))
def change_price(self, position: OrderPosition, price: Decimal):
tax_rule = self._current_tax_rules().get(position.pk, position.tax_rule) or TaxRule.zero()
price = tax_rule.tax(price, base_price_is='gross')
if position.issued_gift_cards.exists():
raise OrderError(self.error_messages['gift_card_change'])
self._totaldiff += price.gross - position.price
if self.order.event.settings.invoice_include_free or price.gross != Decimal('0.00') or position.price != Decimal('0.00'):
self._invoice_dirty = True
self._operations.append(self.PriceOperation(position, price, price.gross - position.price))
def change_tax_rule(self, position_or_fee, tax_rule: TaxRule):
self._operations.append(self.TaxRuleOperation(position_or_fee, tax_rule))
self._invoice_dirty = True
def _current_tax_rules(self):
tax_rules = {}
for p in self._operations:
if isinstance(p, self.TaxRuleOperation):
tax_rules[p.position.pk] = p.tax_rule
elif isinstance(p, self.ItemOperation):
tax_rules[p.position.pk] = p.item.tax_rule
return tax_rules
def recalculate_taxes(self, keep='net'):
positions = self.order.positions.select_related('item', 'item__tax_rule')
ia = self._invoice_address
tax_rules = self._current_tax_rules()
for pos in positions:
tax_rule = tax_rules.get(pos.pk, pos.tax_rule)
if not tax_rule:
continue
if not pos.price:
continue
try:
new_rate = tax_rule.tax_rate_for(ia)
except TaxRule.SaleNotAllowed:
raise OrderError(error_messages['tax_rule_country_blocked'])
# We use override_tax_rate to make sure .tax() doesn't get clever and re-adjusts the pricing itself
if new_rate != pos.tax_rate:
if keep == 'net':
new_tax = tax_rule.tax(pos.price - pos.tax_value, base_price_is='net', currency=self.event.currency,
override_tax_rate=new_rate)
else:
new_tax = tax_rule.tax(pos.price, base_price_is='gross', currency=self.event.currency,
override_tax_rate=new_rate)
self._totaldiff += new_tax.gross - pos.price
self._operations.append(self.PriceOperation(pos, new_tax, new_tax.gross - pos.price))
self._invoice_dirty = True
def cancel_fee(self, fee: OrderFee):
self._totaldiff -= fee.value
self._operations.append(self.CancelFeeOperation(fee, -fee.value))
self._invoice_dirty = True
def add_fee(self, fee: OrderFee):
self._totaldiff += fee.value
self._invoice_dirty = True
self._operations.append(self.AddFeeOperation(fee, fee.value))
def change_fee(self, fee: OrderFee, value: Decimal):
value = (fee.tax_rule or TaxRule.zero()).tax(value, base_price_is='gross')
self._totaldiff += value.gross - fee.value
self._invoice_dirty = True
self._operations.append(self.FeeValueOperation(fee, value, value.gross - fee.value))
def cancel(self, position: OrderPosition):
self._totaldiff -= position.price
self._quotadiff.subtract(position.quotas)
self._operations.append(self.CancelOperation(position, -position.price))
if position.seat:
self._seatdiff.subtract([position.seat])
if self.order.event.settings.invoice_include_free or position.price != Decimal('0.00'):
self._invoice_dirty = True
def add_position(self, item: Item, variation: ItemVariation, price: Decimal, addon_to: OrderPosition = None,
subevent: SubEvent = None, seat: Seat = None, membership: Membership = None,
valid_from: datetime = None, valid_until: datetime = None):
if isinstance(seat, str):
if not seat:
seat = None
else:
try:
seat = Seat.objects.get(
event=self.event,
subevent=subevent,
seat_guid=seat
)
except Seat.DoesNotExist:
raise OrderError(error_messages['seat_invalid'])
try:
if price is None:
price = get_price(item, variation, subevent=subevent, invoice_address=self._invoice_address)
elif not isinstance(price, TaxedPrice):
price = item.tax(price, base_price_is='gross', invoice_address=self._invoice_address)
except TaxRule.SaleNotAllowed:
raise OrderError(self.error_messages['tax_rule_country_blocked'])
is_bundled = False
if price is None:
raise OrderError(self.error_messages['product_invalid'])
if item.variations.exists() and not variation:
raise OrderError(self.error_messages['product_without_variation'])
if not addon_to and item.category and item.category.is_addon:
raise OrderError(self.error_messages['addon_to_required'])
if addon_to:
if not item.category or item.category_id not in addon_to.item.addons.values_list('addon_category', flat=True):
if addon_to.item.bundles.filter(bundled_item=item, bundled_variation=variation).exists():
is_bundled = True
else:
raise OrderError(self.error_messages['addon_invalid'])
if self.order.event.has_subevents and not subevent:
raise OrderError(self.error_messages['subevent_required'])
seated = item.seat_category_mappings.filter(subevent=subevent).exists()
if seated and not seat and self.event.settings.seating_choice:
raise OrderError(self.error_messages['seat_required'])
elif not seated and seat:
raise OrderError(self.error_messages['seat_forbidden'])
if seat and subevent and seat.subevent_id != subevent.pk:
raise OrderError(self.error_messages['seat_subevent_mismatch'].format(seat=seat.name))
new_quotas = (variation.quotas.filter(subevent=subevent)
if variation else item.quotas.filter(subevent=subevent))
if not new_quotas:
raise OrderError(self.error_messages['quota_missing'])
if self.order.event.settings.invoice_include_free or price.gross != Decimal('0.00'):
self._invoice_dirty = True
self._totaldiff += price.gross
self._quotadiff.update(new_quotas)
if seat:
self._seatdiff.update([seat])
self._operations.append(self.AddOperation(item, variation, price, addon_to, subevent, seat, membership,
valid_from, valid_until, is_bundled))
def split(self, position: OrderPosition):
if self.order.event.settings.invoice_include_free or position.price != Decimal('0.00'):
self._invoice_dirty = True
self._operations.append(self.SplitOperation(position))
for a in position.addons.all():
self._operations.append(self.SplitOperation(a))
def set_addons(self, addons, limit_main_positions=None):
"""
This is a convenience method to change the add-on products selected on an order. The input structure is similar
to CartManager.set_addons. It will automatically compute the correct operations to add, cancel, or change
positions on the order. Every existing add-on not in the input will be canceled. Availability of the
products is validated (with some exceptions).
:param addons: A list of dictionaries with the keys ``"addon_to"``, ``"item"``, ``"variation"`` (all ID values),
``"count"``, and ``"price"``.
:param limit_main_positions: By default, the method works on all methods of the order. If you set this to a
queryset or a list of positions, all other positions and their add-ons will be kept
untouched.
"""
if self._operations:
raise ValueError("Setting addons should be the first/only operation")
# Prepare containers for min/max check of products
item_counts = Counter()
for p in self.order.positions.all():
item_counts[p.item] += 1
# Prepare various containers to hold data later
current_addons = defaultdict(lambda: defaultdict(list)) # OrderPos -> currently attached add-ons
input_addons = defaultdict(Counter) # OrderPos -> final desired set of add-ons
selected_addons = defaultdict(Counter) # OrderPos, ItemAddOn -> final desired set of add-ons
opcache = {} # OrderPos.pk -> OrderPos
quota_diff = Counter() # Quota -> Number of usages
available_categories = defaultdict(set) # OrderPos -> Category IDs to choose from
price_included = defaultdict(dict) # OrderPos -> CategoryID -> bool(price is included)
if isinstance(limit_main_positions, QuerySet):
toplevel_qs = limit_main_positions
elif limit_main_positions is not None:
toplevel_qs = self.order.positions.filter(pk__in=[p.pk for p in limit_main_positions])
else:
toplevel_qs = self.order.positions
toplevel_op = toplevel_qs.filter(
addon_to__isnull=True
).prefetch_related(
'addons', 'item__addons', 'item__addons__addon_category'
).select_related('item', 'variation')
_items_cache = {
i.pk: i
for i in self.event.items.select_related('category').prefetch_related(
'addons', 'bundles', 'addons__addon_category', 'quotas'
).annotate(
has_variations=Count('variations'),
).filter(
id__in=[a['item'] for a in addons]
).order_by()
}
_variations_cache = {
v.pk: v
for v in ItemVariation.objects.filter(item__event=self.event).prefetch_related(
'quotas'
).select_related('item', 'item__event').filter(
id__in=[a['variation'] for a in addons if a.get('variation')]
).order_by()
}
# Prefill some of the cache containers
for op in toplevel_op:
if op.canceled:
continue
available_categories[op.pk] = {iao.addon_category_id for iao in op.item.addons.all()}
price_included[op.pk] = {iao.addon_category_id: iao.price_included for iao in op.item.addons.all()}
opcache[op.pk] = op
for a in op.addons.all():
if a.canceled:
continue
if not a.is_bundled:
current_addons[op][a.item_id, a.variation_id].append(a)
# Create operations, perform various checks
for a in addons:
# Check whether the specified items are part of what we just fetched from the database
# If they are not, the user supplied item IDs which either do not exist or belong to
# a different event
if a['item'] not in _items_cache or (a['variation'] and a['variation'] not in _variations_cache):
raise OrderError(error_messages['not_for_sale'])
# Only attach addons to things that are actually in this user's cart
if a['addon_to'] not in opcache:
raise OrderError(error_messages['addon_invalid_base'])
op = opcache[a['addon_to']]
item = _items_cache[a['item']]
subevent = op.subevent # for now, we might lift this requirement later
variation = _variations_cache[a['variation']] if a['variation'] is not None else None
if item.category_id not in available_categories[op.pk]:
raise OrderError(error_messages['addon_invalid_base'])
# Fetch all quotas. If there are no quotas, this item is not allowed to be sold.
quotas = list(item.quotas.filter(subevent=subevent)
if variation is None else variation.quotas.filter(subevent=subevent))
if not quotas:
raise OrderError(error_messages['unavailable'])
if (a['item'], a['variation']) in input_addons[op.id]:
raise OrderError(error_messages['addon_duplicate_item'])
if item.require_voucher or item.hide_without_voucher or (variation and variation.hide_without_voucher):
raise OrderError(error_messages['voucher_required'])
if not item.is_available() or (variation and not variation.is_available()):
raise OrderError(error_messages['unavailable'])
if not item.all_sales_channels:
if self.order.sales_channel.identifier not in (s.identifier for s in item.limit_sales_channels.all()):
raise OrderError(error_messages['unavailable'])
if variation and not variation.all_sales_channels:
if self.order.sales_channel.identifier not in (s.identifier for s in variation.limit_sales_channels.all()):
raise OrderError(error_messages['unavailable'])
if subevent and item.pk in subevent.item_overrides and not subevent.item_overrides[item.pk].is_available():
raise OrderError(error_messages['not_for_sale'])
if subevent and variation and variation.pk in subevent.var_overrides and \
not subevent.var_overrides[variation.pk].is_available():
raise OrderError(error_messages['not_for_sale'])
if item.has_variations and not variation:
raise OrderError(error_messages['not_for_sale'])
if variation and variation.item_id != item.pk:
raise OrderError(error_messages['not_for_sale'])
if subevent and subevent.presale_start and now() < subevent.presale_start:
raise OrderError(error_messages['not_started'])
if (subevent and subevent.presale_has_ended) or self.event.presale_has_ended:
raise OrderError(error_messages['ended'])
if item.require_bundling:
raise OrderError(error_messages['unavailable'])
input_addons[op.id][a['item'], a['variation']] = a.get('count', 1)
selected_addons[op.id, item.category_id][a['item'], a['variation']] = a.get('count', 1)
if price_included[op.pk].get(item.category_id) or (op.voucher_id and op.voucher.all_addons_included):
price = TAXED_ZERO
else:
price = get_price(
item, variation, voucher=None, custom_price=a.get('price'), subevent=op.subevent,
custom_price_is_net=self.event.settings.display_net_prices,
invoice_address=self._invoice_address,
)
if a.get('count', 1) > len(current_addons[op][a['item'], a['variation']]):
# This add-on is new, add it to the cart
for quota in quotas:
quota_diff[quota] += a.get('count', 1) - len(current_addons[op][a['item'], a['variation']])
for i in range(a.get('count', 1) - len(current_addons[op][a['item'], a['variation']])):
self.add_position(
item=item, variation=variation, price=price,
addon_to=op, subevent=op.subevent, seat=None,
)
item_counts[item] += 1
# Check constraints on the add-on combinations
for op in toplevel_op:
item = op.item
for iao in item.addons.all():
selected = selected_addons[op.id, iao.addon_category_id]
n_per_i = Counter()
for (i, v), c in selected.items():
n_per_i[i] += c
if sum(selected.values()) > iao.max_count:
raise OrderError(
error_messages['addon_max_count'] % {
'base': str(item.name),
'max': iao.max_count,
'cat': str(iao.addon_category.name),
}
)
elif sum(selected.values()) < iao.min_count:
raise OrderError(
error_messages['addon_min_count'] % {
'base': str(item.name),
'min': iao.min_count,
'cat': str(iao.addon_category.name),
}
)
elif any(v > 1 for v in n_per_i.values()) and not iao.multi_allowed:
raise OrderError(
error_messages['addon_no_multi'] % {
'base': str(item.name),
'cat': str(iao.addon_category.name),
}
)
# Detect removed add-ons and create RemoveOperations
for cp, al in list(current_addons.items()):
for k, v in al.items():
input_num = input_addons[cp.id].get(k, 0)
current_num = len(current_addons[cp].get(k, []))
if input_num < current_num:
for a in current_addons[cp][k][:current_num - input_num]:
if a.canceled:
continue
is_unavailable = (
# If an item is no longer available due to time, it should usually also be no longer
# user-removable, because e.g. the stock has already been ordered.
# We always pass has_voucher=True because if a product now requires a voucher, it usually does
# not mean it should be unremovable for others.
# This also prevents accidental removal through the UI because a hidden product will no longer
# be part of the input.
(a.variation and a.variation.unavailability_reason(has_voucher=True, subevent=a.subevent))
or (a.variation and self.order.sales_channel not in a.variation.sales_channels)
or a.item.unavailability_reason(has_voucher=True, subevent=a.subevent)
or (
not item.all_sales_channels and
not item.limit_sales_channels.contains(self.order.sales_channel)
)
)
if is_unavailable:
continue
if a.checkins.filter(list__consider_tickets_used=True).exists():
raise OrderError(
error_messages['addon_already_checked_in'] % {
'addon': str(a.item.name),
}
)
self.cancel(a)
item_counts[a.item] -= 1
for item, count in item_counts.items():
if count == 0:
continue
if item.max_per_order and count > item.max_per_order:
raise OrderError(
self.error_messages['max_items_per_product'] % {
'max': item.max_per_order,
'product': item.name
}
)
if item.min_per_order and count < item.min_per_order:
raise OrderError(
self.error_messages['min_items_per_product'] % {
'min': item.min_per_order,
'product': item.name
}
)
def _check_seats(self):
for seat, diff in self._seatdiff.items():
if diff <= 0:
continue
if not seat.is_available(sales_channel=self.order.sales_channel, ignore_distancing=True) or diff > 1:
raise OrderError(self.error_messages['seat_unavailable'].format(seat=seat.name))
if self.event.has_subevents:
state = {}
for p in self.order.positions.all():
state[p] = {'seat': p.seat, 'subevent': p.subevent}
for op in self._operations:
if isinstance(op, self.SeatOperation):
state[op.position]['seat'] = op.seat
elif isinstance(op, self.SubeventOperation):
state[op.position]['subevent'] = op.subevent
for v in state.values():
if v['seat'] and v['seat'].subevent_id != v['subevent'].pk:
raise OrderError(self.error_messages['seat_subevent_mismatch'].format(seat=v['seat'].name))
def _check_quotas(self):
qa = QuotaAvailability()
qa.queue(*[k for k, v in self._quotadiff.items() if v > 0])
qa.compute()
for quota, diff in self._quotadiff.items():
if diff <= 0:
continue
avail = qa.results[quota]
if avail[0] != Quota.AVAILABILITY_OK or (avail[1] is not None and avail[1] < diff):
raise OrderError(self.error_messages['quota'].format(name=quota.name))
def _check_paid_price_change(self):
if self.order.status == Order.STATUS_PAID and self._totaldiff > 0:
if self.order.pending_sum > Decimal('0.00'):
self.order.status = Order.STATUS_PENDING
self.order.set_expires(
now(),
self.order.event.subevents.filter(id__in=self.order.positions.values_list('subevent_id', flat=True))
)
self.order.save()
elif self.order.status in (Order.STATUS_PENDING, Order.STATUS_EXPIRED) and self._totaldiff < 0:
if self.order.pending_sum <= Decimal('0.00') and not self.order.require_approval:
self.order.status = Order.STATUS_PAID
self.order.save()
elif self.open_payment:
try:
self.open_payment.payment_provider.cancel_payment(self.open_payment)
self.order.log_action(
'pretix.event.order.payment.canceled',
{
'local_id': self.open_payment.local_id,
'provider': self.open_payment.provider,
},
user=self.user,
auth=self.auth
)
except PaymentException as e:
self.order.log_action(
'pretix.event.order.payment.canceled.failed',
{
'local_id': self.open_payment.local_id,
'provider': self.open_payment.provider,
'error': str(e)
},
user=self.user,
auth=self.auth
)
elif self.order.status in (Order.STATUS_PENDING, Order.STATUS_EXPIRED) and self._totaldiff > 0:
if self.open_payment:
try:
self.open_payment.payment_provider.cancel_payment(self.open_payment)
self.order.log_action('pretix.event.order.payment.canceled', {
'local_id': self.open_payment.local_id,
'provider': self.open_payment.provider,
}, user=self.user, auth=self.auth)
except PaymentException as e:
self.order.log_action(
'pretix.event.order.payment.canceled.failed',
{
'local_id': self.open_payment.local_id,
'provider': self.open_payment.provider,
'error': str(e)
},
user=self.user,
auth=self.auth,
)
def _check_paid_to_free(self):
if self.event.currency == 'XXX' and self.order.total + self._totaldiff > Decimal("0.00"):
raise OrderError(error_messages['currency_XXX'])
if self.order.total == 0 and (self._totaldiff < 0 or (self.split_order and self.split_order.total > 0)) and not self.order.require_approval:
if not self.order.fees.exists() and not self.order.positions.exists():
# The order is completely empty now, so we cancel it.
self.order.status = Order.STATUS_CANCELED
self.order.save(update_fields=['status'])
order_canceled.send(self.order.event, order=self.order)
elif self.order.status != Order.STATUS_CANCELED:
# if the order becomes free, mark it paid using the 'free' provider
# this could happen if positions have been made cheaper or removed (_totaldiff < 0)
# or positions got split off to a new order (split_order with positive total)
p = self.order.payments.create(
state=OrderPayment.PAYMENT_STATE_CREATED,
provider='free',
amount=0,
fee=None
)
try:
p.confirm(send_mail=False, count_waitinglist=False, user=self.user, auth=self.auth)
except Quota.QuotaExceededException:
raise OrderError(self.error_messages['paid_to_free_exceeded'])
if self.split_order and self.split_order.total == 0 and not self.split_order.require_approval:
p = self.split_order.payments.create(
state=OrderPayment.PAYMENT_STATE_CREATED,
provider='free',
amount=0,
fee=None
)
try:
p.confirm(send_mail=False, count_waitinglist=False, user=self.user, auth=self.auth)
except Quota.QuotaExceededException:
raise OrderError(self.error_messages['paid_to_free_exceeded'])
def _perform_operations(self):
nextposid = self.order.all_positions.aggregate(m=Max('positionid'))['m'] + 1
split_positions = []
secret_dirty = set()
for op in self._operations:
if isinstance(op, self.ItemOperation):
self.order.log_action('pretix.event.order.changed.item', user=self.user, auth=self.auth, data={
'position': op.position.pk,
'positionid': op.position.positionid,
'old_item': op.position.item.pk,
'old_variation': op.position.variation.pk if op.position.variation else None,
'new_item': op.item.pk,
'new_variation': op.variation.pk if op.variation else None,
'old_price': op.position.price,
'addon_to': op.position.addon_to_id,
'new_price': op.position.price
})
op.position.item = op.item
op.position.variation = op.variation
op.position._calculate_tax()
if op.position.voucher_budget_use is not None and op.position.voucher and not op.position.addon_to_id:
listed_price = get_listed_price(op.position.item, op.position.variation, op.position.subevent)
if not op.position.item.tax_rule or op.position.item.tax_rule.price_includes_tax:
price_after_voucher = max(op.position.price, op.position.voucher.calculate_price(listed_price))
else:
price_after_voucher = max(op.position.price - op.position.tax_value, op.position.voucher.calculate_price(listed_price))
op.position.voucher_budget_use = max(listed_price - price_after_voucher, Decimal('0.00'))
secret_dirty.add(op.position)
op.position.save()
elif isinstance(op, self.MembershipOperation):
self.order.log_action('pretix.event.order.changed.membership', user=self.user, auth=self.auth, data={
'position': op.position.pk,
'positionid': op.position.positionid,
'old_membership_id': op.position.used_membership_id,
'new_membership_id': op.membership.pk if op.membership else None,
})
op.position.used_membership = op.membership
op.position.save()
elif isinstance(op, self.SeatOperation):
self.order.log_action('pretix.event.order.changed.seat', user=self.user, auth=self.auth, data={
'position': op.position.pk,
'positionid': op.position.positionid,
'old_seat': op.position.seat.name if op.position.seat else "-",
'new_seat': op.seat.name if op.seat else "-",
'old_seat_id': op.position.seat.pk if op.position.seat else None,
'new_seat_id': op.seat.pk if op.seat else None,
})
op.position.seat = op.seat
secret_dirty.add(op.position)
op.position.save()
elif isinstance(op, self.SubeventOperation):
self.order.log_action('pretix.event.order.changed.subevent', user=self.user, auth=self.auth, data={
'position': op.position.pk,
'positionid': op.position.positionid,
'old_subevent': op.position.subevent.pk,
'new_subevent': op.subevent.pk,
'old_price': op.position.price,
'new_price': op.position.price
})
op.position.subevent = op.subevent
secret_dirty.add(op.position)
if op.position.voucher_budget_use is not None and op.position.voucher and not op.position.addon_to_id:
listed_price = get_listed_price(op.position.item, op.position.variation, op.position.subevent)
if not op.position.item.tax_rule or op.position.item.tax_rule.price_includes_tax:
price_after_voucher = max(op.position.price, op.position.voucher.calculate_price(listed_price))
else:
price_after_voucher = max(op.position.price - op.position.tax_value, op.position.voucher.calculate_price(listed_price))
op.position.voucher_budget_use = max(listed_price - price_after_voucher, Decimal('0.00'))
op.position.save()
elif isinstance(op, self.AddFeeOperation):
self.order.log_action('pretix.event.order.changed.addfee', user=self.user, auth=self.auth, data={
'fee': op.fee.pk,
})
op.fee.order = self.order
op.fee._calculate_tax()
op.fee.save()
elif isinstance(op, self.FeeValueOperation):
self.order.log_action('pretix.event.order.changed.feevalue', user=self.user, auth=self.auth, data={
'fee': op.fee.pk,
'old_price': op.fee.value,
'new_price': op.value.gross
})
op.fee.value = op.value.gross
op.fee._calculate_tax()
op.fee.save()
elif isinstance(op, self.PriceOperation):
self.order.log_action('pretix.event.order.changed.price', user=self.user, auth=self.auth, data={
'position': op.position.pk,
'positionid': op.position.positionid,
'old_price': op.position.price,
'addon_to': op.position.addon_to_id,
'new_price': op.price.gross
})
op.position.price = op.price.gross
op.position.tax_rate = op.price.rate
op.position.tax_value = op.price.tax
op.position.save()
elif isinstance(op, self.TaxRuleOperation):
if isinstance(op.position, OrderPosition):
self.order.log_action('pretix.event.order.changed.tax_rule', user=self.user, auth=self.auth, data={
'position': op.position.pk,
'positionid': op.position.positionid,
'addon_to': op.position.addon_to_id,
'old_taxrule': op.position.tax_rule.pk if op.position.tax_rule else None,
'new_taxrule': op.tax_rule.pk
})
elif isinstance(op.position, OrderFee):
self.order.log_action('pretix.event.order.changed.tax_rule', user=self.user, auth=self.auth, data={
'fee': op.position.pk,
'fee_type': op.position.fee_type,
'old_taxrule': op.position.tax_rule.pk if op.position.tax_rule else None,
'new_taxrule': op.tax_rule.pk
})
op.position._calculate_tax(op.tax_rule)
op.position.save()
elif isinstance(op, self.CancelFeeOperation):
self.order.log_action('pretix.event.order.changed.cancelfee', user=self.user, auth=self.auth, data={
'fee': op.fee.pk,
'fee_type': op.fee.fee_type,
'old_price': op.fee.value,
})
op.fee.canceled = True
op.fee.save(update_fields=['canceled'])
elif isinstance(op, self.CancelOperation):
for gc in op.position.issued_gift_cards.all():
gc = GiftCard.objects.select_for_update(of=OF_SELF).get(pk=gc.pk)
if gc.value < op.position.price:
raise OrderError(_(
'A position can not be canceled since the gift card {card} purchased in this order has '
'already been redeemed.').format(
card=gc.secret
))
else:
gc.transactions.create(value=-op.position.price, order=self.order, acceptor=self.order.event.organizer)
for m in op.position.granted_memberships.with_usages().all():
m.canceled = True
m.save()
for opa in op.position.addons.all():
for gc in opa.issued_gift_cards.all():
gc = GiftCard.objects.select_for_update(of=OF_SELF).get(pk=gc.pk)
if gc.value < opa.position.price:
raise OrderError(_(
'A position can not be canceled since the gift card {card} purchased in this order has '
'already been redeemed.').format(
card=gc.secret
))
else:
gc.transactions.create(value=-opa.position.price, order=self.order, acceptor=self.order.event.organizer)
for m in opa.granted_memberships.with_usages().all():
m.canceled = True
m.save()
self.order.log_action('pretix.event.order.changed.cancel', user=self.user, auth=self.auth, data={
'position': opa.pk,
'positionid': opa.positionid,
'old_item': opa.item.pk,
'old_variation': opa.variation.pk if opa.variation else None,
'addon_to': opa.addon_to_id,
'old_price': opa.price,
})
opa.canceled = True
if opa.voucher:
Voucher.objects.filter(pk=opa.voucher.pk).update(redeemed=Greatest(0, F('redeemed') - 1))
if opa in secret_dirty:
secret_dirty.remove(opa)
assign_ticket_secret(
event=self.event, position=opa, force_invalidate_if_revokation_list_used=True, force_invalidate=False, save=False
)
opa.save(update_fields=['canceled', 'secret'])
self.order.log_action('pretix.event.order.changed.cancel', user=self.user, auth=self.auth, data={
'position': op.position.pk,
'positionid': op.position.positionid,
'old_item': op.position.item.pk,
'old_variation': op.position.variation.pk if op.position.variation else None,
'old_price': op.position.price,
'addon_to': None,
})
op.position.canceled = True
if op.position.voucher:
Voucher.objects.filter(pk=op.position.voucher.pk).update(redeemed=Greatest(0, F('redeemed') - 1))
assign_ticket_secret(
event=self.event, position=op.position, force_invalidate_if_revokation_list_used=True, force_invalidate=False, save=False
)
if op.position in secret_dirty:
secret_dirty.remove(op.position)
op.position.save(update_fields=['canceled', 'secret'])
elif isinstance(op, self.AddOperation):
pos = OrderPosition.objects.create(
item=op.item, variation=op.variation, addon_to=op.addon_to,
price=op.price.gross, order=self.order, tax_rate=op.price.rate,
tax_value=op.price.tax, tax_rule=op.item.tax_rule,
positionid=nextposid, subevent=op.subevent, seat=op.seat,
used_membership=op.membership, valid_from=op.valid_from, valid_until=op.valid_until,
is_bundled=op.is_bundled,
)
nextposid += 1
self.order.log_action('pretix.event.order.changed.add', user=self.user, auth=self.auth, data={
'position': pos.pk,
'item': op.item.pk,
'variation': op.variation.pk if op.variation else None,
'addon_to': op.addon_to.pk if op.addon_to else None,
'price': op.price.gross,
'positionid': pos.positionid,
'membership': pos.used_membership_id,
'subevent': op.subevent.pk if op.subevent else None,
'seat': op.seat.pk if op.seat else None,
'valid_from': op.valid_from.isoformat() if op.valid_from else None,
'valid_until': op.valid_until.isoformat() if op.valid_until else None,
})
elif isinstance(op, self.SplitOperation):
split_positions.append(op.position)
elif isinstance(op, self.RegenerateSecretOperation):
assign_ticket_secret(
event=self.event, position=op.position, force_invalidate=True, save=True
)
if op.position in secret_dirty:
secret_dirty.remove(op.position)
tickets.invalidate_cache.apply_async(kwargs={'event': self.event.pk,
'order': self.order.pk})
self.order.log_action('pretix.event.order.changed.secret', user=self.user, auth=self.auth, data={
'position': op.position.pk,
'positionid': op.position.positionid,
})
elif isinstance(op, self.ChangeValidFromOperation):
self.order.log_action('pretix.event.order.changed.valid_from', user=self.user, auth=self.auth, data={
'position': op.position.pk,
'positionid': op.position.positionid,
'new_value': op.valid_from.isoformat() if op.valid_from else None,
'old_value': op.position.valid_from.isoformat() if op.position.valid_from else None,
})
op.position.valid_from = op.valid_from
op.position.save(update_fields=['valid_from'])
secret_dirty.add(op.position)
elif isinstance(op, self.ChangeValidUntilOperation):
self.order.log_action('pretix.event.order.changed.valid_until', user=self.user, auth=self.auth, data={
'position': op.position.pk,
'positionid': op.position.positionid,
'new_value': op.valid_until.isoformat() if op.valid_until else None,
'old_value': op.position.valid_until.isoformat() if op.position.valid_until else None,
})
op.position.valid_until = op.valid_until
op.position.save(update_fields=['valid_until'])
secret_dirty.add(op.position)
elif isinstance(op, self.AddBlockOperation):
self.order.log_action('pretix.event.order.changed.add_block', user=self.user, auth=self.auth, data={
'position': op.position.pk,
'positionid': op.position.positionid,
'block_name': op.block_name,
})
if op.position.blocked:
if op.block_name not in op.position.blocked:
op.position.blocked = op.position.blocked + [op.block_name]
else:
op.position.blocked = [op.block_name]
if op.ignore_from_quota_while_blocked is not None:
op.position.ignore_from_quota_while_blocked = op.ignore_from_quota_while_blocked
op.position.save(update_fields=['blocked', 'ignore_from_quota_while_blocked'])
if op.position.blocked:
op.position.blocked_secrets.update_or_create(
event=self.event,
secret=op.position.secret,
defaults={
'blocked': True,
'updated': now(),
}
)
elif isinstance(op, self.RemoveBlockOperation):
self.order.log_action('pretix.event.order.changed.remove_block', user=self.user, auth=self.auth, data={
'position': op.position.pk,
'positionid': op.position.positionid,
'block_name': op.block_name,
})
if op.position.blocked and op.block_name in op.position.blocked:
op.position.blocked = [b for b in op.position.blocked if b != op.block_name]
if not op.position.blocked:
op.position.blocked = None
if op.ignore_from_quota_while_blocked is not None:
op.position.ignore_from_quota_while_blocked = op.ignore_from_quota_while_blocked
op.position.save(update_fields=['blocked', 'ignore_from_quota_while_blocked'])
if not op.position.blocked:
try:
bs = op.position.blocked_secrets.get(secret=op.position.secret)
bs.blocked = False
bs.save()
except BlockedTicketSecret.DoesNotExist:
pass
# todo: revoke list handling
for p in secret_dirty:
assign_ticket_secret(
event=self.event, position=p, force_invalidate=False, save=True
)
if split_positions:
self.split_order = self._create_split_order(split_positions)
def _create_split_order(self, split_positions):
split_order = Order.objects.get(pk=self.order.pk)
split_order.pk = None
split_order.code = None
split_order.datetime = now()
split_order.secret = generate_secret()
split_order.require_approval = self.order.require_approval and any(p.requires_approval(invoice_address=self._invoice_address) for p in split_positions)
split_order.save()
split_order.log_action('pretix.event.order.changed.split_from', user=self.user, auth=self.auth, data={
'original_order': self.order.code
})
for op in split_positions:
self.order.log_action('pretix.event.order.changed.split', user=self.user, auth=self.auth, data={
'position': op.pk,
'positionid': op.positionid,
'old_item': op.item.pk,
'old_variation': op.variation.pk if op.variation else None,
'old_price': op.price,
'new_order': split_order.code,
})
op.order = split_order
assign_ticket_secret(
self.event, position=op, force_invalidate=True,
)
op.save()
try:
ia = modelcopy(self.order.invoice_address)
ia.pk = None
ia.order = split_order
ia.save()
except InvoiceAddress.DoesNotExist:
pass
split_order.total = sum([p.price for p in split_positions if not p.canceled])
for fee in self.order.fees.exclude(fee_type=OrderFee.FEE_TYPE_PAYMENT):
new_fee = modelcopy(fee)
new_fee.pk = None
new_fee.order = split_order
split_order.total += new_fee.value
new_fee.save()
if split_order.total != Decimal('0.00') and self.order.status != Order.STATUS_PAID:
pp = self._get_payment_provider()
if pp:
payment_fee = pp.calculate_fee(split_order.total)
else:
payment_fee = Decimal('0.00')
fee = split_order.fees.get_or_create(fee_type=OrderFee.FEE_TYPE_PAYMENT, defaults={'value': 0})[0]
fee.value = payment_fee
fee._calculate_tax()
if payment_fee != 0:
fee.save()
elif fee.pk:
fee.delete()
split_order.total += fee.value
remaining_total = sum([p.price for p in self.order.positions.all()]) + sum([f.value for f in self.order.fees.all()])
offset_amount = min(max(0, self.completed_payment_sum - remaining_total), split_order.total)
if offset_amount >= split_order.total and not split_order.require_approval:
split_order.status = Order.STATUS_PAID
else:
split_order.status = Order.STATUS_PENDING
if self.order.status == Order.STATUS_PAID:
split_order.set_expires(
now(),
list(set(p.subevent_id for p in split_positions))
)
split_order.save()
if offset_amount > Decimal('0.00'):
split_order.payments.create(
state=OrderPayment.PAYMENT_STATE_CONFIRMED,
amount=offset_amount,
payment_date=now(),
provider='offsetting',
info=json.dumps({'orders': [self.order.code]})
)
self.order.refunds.create(
state=OrderRefund.REFUND_STATE_DONE,
amount=offset_amount,
execution_date=now(),
provider='offsetting',
info=json.dumps({'orders': [split_order.code]})
)
if split_order.total != Decimal('0.00') and self.order.invoices.filter(is_cancellation=False).last():
generate_invoice(split_order)
order_split.send(sender=self.order.event, original=self.order, split_order=split_order)
return split_order
@cached_property
def open_payment(self):
lp = self.order.payments.last()
if lp and lp.state not in (OrderPayment.PAYMENT_STATE_CONFIRMED,
OrderPayment.PAYMENT_STATE_REFUNDED):
return lp
@cached_property
def completed_payment_sum(self):
payment_sum = self.order.payments.filter(
state__in=(OrderPayment.PAYMENT_STATE_CONFIRMED, OrderPayment.PAYMENT_STATE_REFUNDED)
).aggregate(s=Sum('amount'))['s'] or Decimal('0.00')
refund_sum = self.order.refunds.filter(
state__in=(OrderRefund.REFUND_STATE_DONE, OrderRefund.REFUND_STATE_TRANSIT, OrderRefund.REFUND_STATE_DONE)
).aggregate(s=Sum('amount'))['s'] or Decimal('0.00')
return payment_sum - refund_sum
def _recalculate_total_and_payment_fee(self):
total = sum([p.price for p in self.order.positions.all()]) + sum([f.value for f in self.order.fees.all()])
payment_fee = Decimal('0.00')
if self.open_payment:
current_fee = Decimal('0.00')
fee = None
if self.open_payment.fee:
fee = self.open_payment.fee
if any(isinstance(op, (self.FeeValueOperation, self.CancelFeeOperation)) for op in self._operations):
fee.refresh_from_db()
if not self.open_payment.fee.canceled:
current_fee = self.open_payment.fee.value
total -= current_fee
if fee and any([isinstance(op, self.FeeValueOperation) and op.fee == fee for op in self._operations]):
# Do not automatically modify a fee that is being manually modified right now
payment_fee = fee.value
elif fee and any([isinstance(op, self.CancelFeeOperation) and op.fee == fee for op in self._operations]):
# Do not automatically modify a fee that is being manually removed right now
payment_fee = Decimal('0.00')
elif self.order.pending_sum - current_fee != 0:
prov = self.open_payment.payment_provider
if prov:
payment_fee = prov.calculate_fee(total - self.completed_payment_sum)
if payment_fee:
fee = fee or OrderFee(fee_type=OrderFee.FEE_TYPE_PAYMENT, order=self.order)
fee.value = payment_fee
fee._calculate_tax()
fee.save()
if not self.open_payment.fee:
self.open_payment.fee = fee
self.open_payment.save(update_fields=['fee'])
elif fee and not fee.canceled:
fee.delete()
self.order.total = total + payment_fee
self.order.save()
def _check_order_size(self):
if (len(self.order.positions.all()) + len([op for op in self._operations if isinstance(op, self.AddOperation)])) > settings.PRETIX_MAX_ORDER_SIZE:
raise OrderError(
self.error_messages['max_order_size'] % {
'max': settings.PRETIX_MAX_ORDER_SIZE,
}
)
def _payment_fee_diff(self):
total = self.order.total + self._totaldiff
if self.open_payment:
current_fee = Decimal('0.00')
if self.open_payment and self.open_payment.fee:
current_fee = self.open_payment.fee.value
total -= current_fee
# Do not change payment fees of paid orders
payment_fee = Decimal('0.00')
if self.order.pending_sum - current_fee != 0:
prov = self.open_payment.payment_provider
if prov:
payment_fee = prov.calculate_fee(total - self.completed_payment_sum)
self._totaldiff += payment_fee - current_fee
def _reissue_invoice(self):
i = self.order.invoices.filter(is_cancellation=False).last()
if self.reissue_invoice and self._invoice_dirty:
order_now_qualified = invoice_qualified(self.order)
invoice_should_be_generated_now = (
self.event.settings.invoice_generate == "True" or (
self.event.settings.invoice_generate == "paid" and
self.open_payment is not None and
self.open_payment.payment_provider.requires_invoice_immediately
) or (
self.event.settings.invoice_generate == "paid" and
self.order.status == Order.STATUS_PAID
) or (
# Backwards-compatible behaviour
self.event.settings.invoice_generate not in ("True", "paid") and
i and
not i.canceled
)
)
invoice_should_be_generated_later = not invoice_should_be_generated_now and (
self.event.settings.invoice_generate in ("True", "paid")
)
if order_now_qualified:
if invoice_should_be_generated_now:
if i and not i.canceled:
self._invoices.append(generate_cancellation(i))
self._invoices.append(generate_invoice(self.order))
elif invoice_should_be_generated_later:
self.order.invoice_dirty = True
self.order.save(update_fields=["invoice_dirty"])
else:
if i and not i.canceled:
self._invoices.append(generate_cancellation(i))
def _check_complete_cancel(self):
current = self.order.positions.count()
cancels = len([o for o in self._operations if isinstance(o, (self.CancelOperation, self.SplitOperation))])
adds = len([o for o in self._operations if isinstance(o, self.AddOperation)])
if current > 0 and current - cancels + adds < 1:
raise OrderError(self.error_messages['complete_cancel'])
@property
def _invoice_address(self):
try:
return self.order.invoice_address
except InvoiceAddress.DoesNotExist:
return None
def _check_and_lock_memberships(self):
# To avoid duplicating all the logic around memberships, we simulate an application of all relevant
# operations in a non-existing cart and then pass that to our cart checker.
fake_cart = []
positions_to_fake_cart = {}
for p in self.order.positions.all():
cp = CartPosition(
event=self.event,
item=p.item,
variation=p.variation,
attendee_name_parts=p.attendee_name_parts,
used_membership=p.used_membership,
subevent=p.subevent,
seat=p.seat,
)
fake_cart.append(cp)
positions_to_fake_cart[p] = cp
for op in self._operations:
if isinstance(op, self.ItemOperation):
positions_to_fake_cart[op.position].item = op.item
positions_to_fake_cart[op.position].variation = op.variation
elif isinstance(op, self.SubeventOperation):
positions_to_fake_cart[op.position].subevent = op.subevent
elif isinstance(op, self.SeatOperation):
positions_to_fake_cart[op.position].seat = op.seat
elif isinstance(op, self.MembershipOperation):
positions_to_fake_cart[op.position].used_membership = op.membership
elif isinstance(op, self.ChangeValidFromOperation):
positions_to_fake_cart[op.position].override_valid_from = op.valid_from
elif isinstance(op, self.ChangeValidUntilOperation):
positions_to_fake_cart[op.position].override_valid_until = op.valid_until
elif isinstance(op, self.CancelOperation) and op.position in positions_to_fake_cart:
fake_cart.remove(positions_to_fake_cart[op.position])
elif isinstance(op, self.AddOperation):
cp = CartPosition(
event=self.event,
item=op.item,
variation=op.variation,
used_membership=op.membership,
subevent=op.subevent,
seat=op.seat,
)
cp.override_valid_from = op.valid_from
cp.override_valid_until = op.valid_until
fake_cart.append(cp)
try:
validate_memberships_in_order(self.order.customer, fake_cart, self.event, lock=True, ignored_order=self.order, testmode=self.order.testmode)
except ValidationError as e:
raise OrderError(e.message)
def _create_locks(self):
full_lock_required = any(diff > 0 for diff in self._seatdiff.values()) and self.event.settings.seating_minimal_distance > 0
if full_lock_required:
# We lock the entire event in this case since we don't want to deal with fine-granular locking
# in the case of seating distance enforcement
lock_objects([self.event])
else:
lock_objects(
[q for q, d in self._quotadiff.items() if q.size is not None and d > 0] +
[s for s, d in self._seatdiff.items() if d > 0],
shared_lock_objects=[self.event]
)
def commit(self, check_quotas=True):
if self._committed:
# an order change can only be committed once
raise OrderError(error_messages['internal'])
self._committed = True
if not self._operations:
# Do nothing
return
# Clear prefetched objects cache of order. We're going to modify the positions and fees and we have no guarantee
# that every operation tuple points to a position/fee instance that has been fetched from the same object cache,
# so it's dangerous to keep the cache around.
self.order._prefetched_objects_cache = {}
# finally, incorporate difference in payment fees
self._payment_fee_diff()
self._check_order_size()
with transaction.atomic():
locked_instance = Order.objects.select_for_update(of=OF_SELF).get(pk=self.order.pk)
if locked_instance.last_modified != self.order.last_modified:
raise OrderError(error_messages['race_condition'])
if self.order.status in (Order.STATUS_PENDING, Order.STATUS_PAID):
if check_quotas:
self._check_quotas()
self._check_seats()
self._create_locks()
self._check_complete_cancel()
self._check_and_lock_memberships()
try:
self._perform_operations()
except TaxRule.SaleNotAllowed:
raise OrderError(self.error_messages['tax_rule_country_blocked'])
self._recalculate_total_and_payment_fee()
self._check_paid_price_change()
self._check_paid_to_free()
if self.order.status in (Order.STATUS_PENDING, Order.STATUS_PAID):
self._reissue_invoice()
self._clear_tickets_cache()
self.order.touch()
self.order.create_transactions()
if self.split_order:
self.split_order.create_transactions()
if self.notify:
notify_user_changed_order(
self.order, self.user, self.auth,
self._invoices if self.event.settings.invoice_email_attachment else []
)
if self.split_order:
notify_user_changed_order(
self.split_order, self.user, self.auth,
list(self.split_order.invoices.all()) if self.event.settings.invoice_email_attachment else []
)
order_changed.send(self.order.event, order=self.order)
def _clear_tickets_cache(self):
tickets.invalidate_cache.apply_async(kwargs={'event': self.event.pk,
'order': self.order.pk})
if self.split_order:
tickets.invalidate_cache.apply_async(kwargs={'event': self.event.pk,
'order': self.split_order.pk})
def _get_payment_provider(self):
lp = self.order.payments.last()
if not lp:
return None
pprov = lp.payment_provider
if not pprov:
return None
return pprov
@app.task(base=ProfiledEventTask, bind=True, max_retries=5, default_retry_delay=1, throws=(OrderError,))
def perform_order(self, event: Event, payments: List[dict], positions: List[str],
email: str=None, locale: str=None, address: int=None, meta_info: dict=None,
sales_channel: str='web', shown_total=None, customer=None, override_now_dt: datetime=None):
with language(locale), time_machine_now_assigned(override_now_dt):
try:
try:
return _perform_order(event, payments, positions, email, locale, address, meta_info,
sales_channel, shown_total, customer)
except LockTimeoutException:
self.retry()
except (MaxRetriesExceededError, LockTimeoutException):
raise OrderError(error_messages['busy'])
_unset = object()
def _try_auto_refund(order, auto_refund=True, manual_refund=False, allow_partial=False,
source=OrderRefund.REFUND_SOURCE_BUYER,
refund_as_giftcard=False, giftcard_expires=_unset, giftcard_conditions=None, comment=None):
notify_admin = False
error = False
if isinstance(order, int):
order = Order.objects.get(pk=order)
refund_amount = order.pending_sum * -1
if refund_amount <= Decimal('0.00'):
return
can_auto_refund_sum = 0
if refund_as_giftcard:
can_auto_refund_sum = refund_amount
with transaction.atomic():
giftcard = order.event.organizer.issued_gift_cards.create(
expires=order.event.organizer.default_gift_card_expiry if giftcard_expires is _unset else giftcard_expires,
conditions=giftcard_conditions,
currency=order.event.currency,
testmode=order.testmode
)
giftcard.log_action('pretix.giftcards.created', data={})
r = order.refunds.create(
order=order,
payment=None,
source=source,
comment=comment,
state=OrderRefund.REFUND_STATE_CREATED,
execution_date=now(),
amount=can_auto_refund_sum,
provider='giftcard',
info=json.dumps({
'gift_card': giftcard.pk
})
)
try:
r.payment_provider.execute_refund(r)
except PaymentException as e:
with transaction.atomic():
r.state = OrderRefund.REFUND_STATE_FAILED
r.save()
order.log_action('pretix.event.order.refund.failed', {
'local_id': r.local_id,
'provider': r.provider,
'error': str(e)
})
error = True
notify_admin = True
else:
if r.state != OrderRefund.REFUND_STATE_DONE:
notify_admin = True
elif auto_refund:
proposals = order.propose_auto_refunds(refund_amount)
can_auto_refund_sum = sum(proposals.values())
if (allow_partial and can_auto_refund_sum) or can_auto_refund_sum == refund_amount:
for p, value in proposals.items():
with transaction.atomic():
r = order.refunds.create(
payment=p,
source=source,
state=OrderRefund.REFUND_STATE_CREATED,
amount=value,
comment=comment,
provider=p.provider
)
order.log_action('pretix.event.order.refund.created', {
'local_id': r.local_id,
'provider': r.provider,
})
try:
r.payment_provider.execute_refund(r)
except PaymentException as e:
with transaction.atomic():
r.state = OrderRefund.REFUND_STATE_FAILED
r.save()
order.log_action('pretix.event.order.refund.failed', {
'local_id': r.local_id,
'provider': r.provider,
'error': str(e)
})
error = True
notify_admin = True
else:
if r.state not in (OrderRefund.REFUND_STATE_TRANSIT, OrderRefund.REFUND_STATE_DONE):
notify_admin = True
if refund_amount - can_auto_refund_sum > Decimal('0.00'):
if manual_refund:
with transaction.atomic():
r = order.refunds.create(
source=source,
comment=comment,
state=OrderRefund.REFUND_STATE_CREATED,
amount=refund_amount - can_auto_refund_sum,
provider='manual'
)
order.log_action('pretix.event.order.refund.created', {
'local_id': r.local_id,
'provider': r.provider,
})
else:
notify_admin = True
if notify_admin:
order.log_action('pretix.event.order.refund.requested')
if error:
raise OrderError(
_(
'There was an error while trying to send the money back to you. Please contact the event organizer '
'for further information.')
)
@app.task(base=ProfiledTask, bind=True, max_retries=5, default_retry_delay=1, throws=(OrderError,))
@scopes_disabled()
def cancel_order(self, order: int, user: int=None, send_mail: bool=True, api_token=None, oauth_application=None,
device=None, cancellation_fee=None, try_auto_refund=False, refund_as_giftcard=False,
email_comment=None, refund_comment=None, cancel_invoice=True):
try:
try:
ret = _cancel_order(order, user, send_mail, api_token, device, oauth_application,
cancellation_fee, cancel_invoice=cancel_invoice, comment=email_comment)
if try_auto_refund:
_try_auto_refund(order, refund_as_giftcard=refund_as_giftcard,
comment=refund_comment)
return ret
except LockTimeoutException:
self.retry()
except (MaxRetriesExceededError, LockTimeoutException):
raise OrderError(error_messages['busy'])
def change_payment_provider(order: Order, payment_provider, amount=None, new_payment=None, create_log=True,
recreate_invoices=True):
if not get_connection().in_atomic_block:
raise Exception('change_payment_provider should only be called in atomic transaction!')
oldtotal = order.total
e = OrderPayment.objects.filter(fee=OuterRef('pk'), state__in=(OrderPayment.PAYMENT_STATE_CONFIRMED,
OrderPayment.PAYMENT_STATE_REFUNDED))
open_fees = list(
order.fees.annotate(has_p=Exists(e)).filter(
Q(fee_type=OrderFee.FEE_TYPE_PAYMENT) & ~Q(has_p=True)
)
)
if open_fees:
fee = open_fees[0]
if len(open_fees) > 1:
for f in open_fees[1:]:
f.delete()
else:
fee = OrderFee(fee_type=OrderFee.FEE_TYPE_PAYMENT, value=Decimal('0.00'), order=order)
old_fee = fee.value
new_fee = payment_provider.calculate_fee(
order.pending_sum - old_fee if amount is None else amount
)
if new_fee:
fee.value = new_fee
fee.internal_type = payment_provider.identifier
fee._calculate_tax()
fee.save()
else:
if fee.pk:
fee.delete()
fee = None
open_payment = None
if new_payment:
lp = order.payments.select_for_update(of=OF_SELF).exclude(pk=new_payment.pk).last()
else:
lp = order.payments.select_for_update(of=OF_SELF).last()
if lp and lp.state in (OrderPayment.PAYMENT_STATE_PENDING, OrderPayment.PAYMENT_STATE_CREATED):
open_payment = lp
if open_payment:
try:
open_payment.payment_provider.cancel_payment(open_payment)
order.log_action('pretix.event.order.payment.canceled', {
'local_id': open_payment.local_id,
'provider': open_payment.provider,
})
except PaymentException as e:
order.log_action(
'pretix.event.order.payment.canceled.failed',
{
'local_id': open_payment.local_id,
'provider': open_payment.provider,
'error': str(e)
},
)
order.total = (order.positions.aggregate(sum=Sum('price'))['sum'] or 0) + (order.fees.aggregate(sum=Sum('value'))['sum'] or 0)
order.save(update_fields=['total'])
if not new_payment:
new_payment = order.payments.create(
state=OrderPayment.PAYMENT_STATE_CREATED,
provider=payment_provider.identifier,
amount=order.pending_sum,
fee=fee
)
if create_log and new_payment:
order.log_action(
'pretix.event.order.payment.changed' if open_payment else 'pretix.event.order.payment.started',
{
'fee': new_fee,
'old_fee': old_fee,
'provider': payment_provider.identifier,
'payment': new_payment.pk,
'local_id': new_payment.local_id,
}
)
if recreate_invoices:
i = order.invoices.filter(is_cancellation=False).last()
if i and order.total != oldtotal and not i.canceled:
generate_cancellation(i)
generate_invoice(order)
order.create_transactions()
return old_fee, new_fee, fee, new_payment
@receiver(order_paid, dispatch_uid="pretixbase_order_paid_giftcards")
@receiver(order_changed, dispatch_uid="pretixbase_order_changed_giftcards")
@transaction.atomic()
def signal_listener_issue_giftcards(sender: Event, order: Order, **kwargs):
if order.status != Order.STATUS_PAID:
return
any_giftcards = False
for p in order.positions.all():
if p.item.issue_giftcard:
issued = Decimal('0.00')
for gc in p.issued_gift_cards.all():
issued += gc.transactions.first().value
if p.price - issued > 0:
gc = sender.organizer.issued_gift_cards.create(
currency=sender.currency, issued_in=p, testmode=order.testmode,
expires=sender.organizer.default_gift_card_expiry,
)
gc.transactions.create(value=p.price - issued, order=order, acceptor=sender.organizer)
any_giftcards = True
p.secret = gc.secret
p.save(update_fields=['secret'])
if any_giftcards:
tickets.invalidate_cache.apply_async(kwargs={'event': sender.pk, 'order': order.pk})
@receiver(order_paid, dispatch_uid="pretixbase_order_paid_memberships")
@receiver(order_changed, dispatch_uid="pretixbase_order_changed_memberships")
@transaction.atomic()
def signal_listener_issue_memberships(sender: Event, order: Order, **kwargs):
if order.status != Order.STATUS_PAID or not order.customer:
return
for p in order.positions.all():
if p.item.grant_membership_type_id:
create_membership(order.customer, p)
@receiver(order_placed, dispatch_uid="pretixbase_order_placed_media")
@receiver(order_changed, dispatch_uid="pretixbase_order_changed_media")
@transaction.atomic()
def signal_listener_issue_media(sender: Event, order: Order, **kwargs):
from pretix.base.models import ReusableMedium
for p in order.positions.all():
if p.item.media_policy in (Item.MEDIA_POLICY_NEW, Item.MEDIA_POLICY_REUSE_OR_NEW):
mt = MEDIA_TYPES[p.item.media_type]
if mt.medium_created_by_server and not p.linked_media.exists():
rm = ReusableMedium.objects.create(
organizer=sender.organizer,
type=p.item.media_type,
identifier=mt.generate_identifier(sender.organizer),
active=True,
customer=order.customer,
linked_orderposition=p,
)
rm.log_action(
'pretix.reusable_medium.created',
data={
'by_order': order.code,
'linked_orderposition': p.pk,
'active': True,
'customer': order.customer_id,
}
)
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