formatting

A non-empty string is truthy, making the the for-loop useless, as the first item in inspect.stack() is always the for-loop itself, which then lead to the function returning immediately.
This commit
* fixes this typo
* changes the loop to ignore the first element of instpect.stack() (which is the loop itself)
* ignores django-internal code

This should create something similar to what I suspect the code was intended to do originally.

Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.11-bookworm
+FROM python:3.13-trixie
 
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \

src/pretix/base/exporter.py

@@ -47,6 +47,7 @@ from django.utils.formats import localize
 from django.utils.translation import gettext, gettext_lazy as _
 
 from pretix.base.models import Event
+from pretix.base.models.auth import PermissionHolder
 from pretix.helpers.safe_openpyxl import (  # NOQA: backwards compatibility for plugins using excel_safe
     SafeWorkbook, remove_invalid_excel_chars as excel_safe,
 )
@@ -59,11 +60,20 @@ class BaseExporter:
     This is the base class for all data exporters
     """
 
-    def __init__(self, event, organizer, progress_callback=lambda v: None):
+    def __init__(self, event, organizer, permission_holder: PermissionHolder=None, progress_callback=lambda v: None):
+        """
+        :param event: Event context, can also be a queryset of events for multi-event exports
+        :param organizer: Organizer context
+        :param user: The user who triggered the export (or None).
+        :param token: The API token that triggered the export (or None).
+        :param device: The device that triggered the export (or None)
+        :param progress_callback: Callback function with progress
+        """
         self.event = event
         self.organizer = organizer
         self.progress_callback = progress_callback
         self.is_multievent = isinstance(event, QuerySet)
+        self.permission_holder = permission_holder
         if isinstance(event, QuerySet):
             self.events = event
             self.event = None
@@ -180,7 +190,7 @@ class BaseExporter:
         return True
 
     @classmethod
-    def get_required_event_permission(cls) -> str:
+    def get_required_event_permission(cls) -> Optional[str]:
         """
         The permission level required to use this exporter for events. For multi-event-exports, this will be used
         to limit the selection of events. Will be ignored if the ``OrganizerLevelExportMixin`` mixin is used.
@@ -195,7 +205,7 @@ class OrganizerLevelExportMixin:
         raise TypeError("required_event_permission may not be called on OrganizerLevelExportMixin")
 
     @classmethod
-    def get_required_organizer_permission(cls) -> str:
+    def get_required_organizer_permission(cls) -> Optional[str]:
         """
         The permission level required to use this exporter. Must be set for organizer-level exports. Set to `None` to
         allow everyone with any access to the organizer.

src/pretix/base/modelimport.py

@@ -70,6 +70,10 @@ def parse_csv(file, length=None, mode="strict", charset=None):
         except ImportError:
             charset = file.charset
     data = data.decode(charset or "utf-8", mode)
+
+    # remove stray linebreaks from the end of the file
+    data = data.rstrip("\n")
+
     # If the file was modified on a Mac, it only contains \r as line breaks
     if '\r' in data and '\n' not in data:
         data = data.replace('\r', '\n')

src/pretix/base/models/_transactions.py

@@ -29,7 +29,9 @@ import inspect
 import logging
 import os
 import threading
+from pathlib import Path
 
+import django
 from django.conf import settings
 from django.db import transaction
 
@@ -74,10 +76,14 @@ def _transactions_mark_order_dirty(order_id, using=None):
     if "PYTEST_CURRENT_TEST" in os.environ:
         # We don't care about Order.objects.create() calls in test code so let's try to figure out if this is test code
         # or not.
-        for frame in inspect.stack():
-            if 'pretix/base/models/orders' in frame.filename:
+        for frame in inspect.stack()[1:]:
+            if (
+                'pretix/base/models/orders' in frame.filename
+                or Path(frame.filename).is_relative_to(Path(django.__file__).parent)
+            ):
+                # Ignore model- and django-internal code
                 continue
-            elif 'test_' in frame.filename or 'conftest.py in frame.filename':
+            elif 'test_' in frame.filename or 'conftest.py' in frame.filename:
                 return
             elif 'pretix/' in frame.filename or 'pretix_' in frame.filename:
                 # This went through non-test code, let's consider it non-test

src/pretix/base/models/auth.py

@@ -38,6 +38,7 @@ import operator
 import secrets
 from datetime import timedelta
 from functools import reduce
+from typing import Protocol
 
 from django.conf import settings
 from django.contrib.auth.models import (
@@ -67,6 +68,14 @@ class EmailAddressTakenError(IntegrityError):
     pass
 
 
+class PermissionHolder(Protocol):
+    def has_event_permission(self, organizer, event, perm_name=None, request=None, session_key=None) -> bool:
+        ...
+
+    def has_organizer_permission(self, organizer, perm_name=None, request=None):
+        ...
+
+
 class UserManager(BaseUserManager):
     """
     This is the user manager for our custom user model. See the User
@@ -696,6 +705,18 @@ class User(AbstractBaseUser, PermissionsMixin, LoggingMixin):
         return self.teams.exists()
 
 
+class UserWithStaffSession:
+    # Wrapper around a User object with a staff session, implementing the PermissionHolder Protocol
+    def __init__(self, user):
+        self.user = user
+
+    def has_event_permission(self, organizer, event, perm_name=None, request=None, session_key=None) -> bool:
+        return True
+
+    def has_organizer_permission(self, organizer, perm_name=None, request=None):
+        return True
+
+
 class UserKnownLoginSource(models.Model):
     user = models.ForeignKey('User', on_delete=models.CASCADE, related_name="known_login_sources")
     agent_type = models.CharField(max_length=255, null=True, blank=True)

src/pretix/base/models/devices.py

@@ -229,7 +229,7 @@ class Device(LoggedModel):
         """
         return self._organizer_permission_set() if self.organizer == organizer else set()
 
-    def has_event_permission(self, organizer, event, perm_name=None, request=None) -> bool:
+    def has_event_permission(self, organizer, event, perm_name=None, request=None, session_key=None) -> bool:
         """
         Checks if this token is part of a team that grants access of type ``perm_name``
         to the event ``event``.
@@ -238,6 +238,7 @@ class Device(LoggedModel):
         :param event: The event to check
         :param perm_name: The permission, e.g. ``event.orders:read``
         :param request: This parameter is ignored and only defined for compatibility reasons.
+        :param session_key: This parameter is ignored and only defined for compatibility reasons.
         :return: bool
         """
         has_event_access = (self.all_events and organizer == self.organizer) or (

src/pretix/base/models/orders.py

@@ -590,7 +590,7 @@ class Order(LockModel, LoggedModel):
             not kwargs.get('force_save_with_deferred_fields', None) and
             (not update_fields or ('require_approval' not in update_fields and 'status' not in update_fields))
         ):
-            _fail("It is unsafe to call save() on an OrderFee with deferred fields since we can't check if you missed "
+            _fail("It is unsafe to call save() on an Order with deferred fields since we can't check if you missed "
                   "creating a transaction. Call save(force_save_with_deferred_fields=True) if you really want to do "
                   "this.")
 
@@ -2841,7 +2841,7 @@ class OrderPosition(AbstractPosition):
             if Transaction.key(self) != self.__initial_transaction_key or self.canceled != self.__initial_canceled or not self.pk:
                 _transactions_mark_order_dirty(self.order_id, using=kwargs.get('using', None))
         elif not kwargs.get('force_save_with_deferred_fields', None):
-            _fail("It is unsafe to call save() on an OrderFee with deferred fields since we can't check if you missed "
+            _fail("It is unsafe to call save() on an OrderPosition with deferred fields since we can't check if you missed "
                   "creating a transaction. Call save(force_save_with_deferred_fields=True) if you really want to do "
                   "this.")
 

src/pretix/base/models/organizer.py

@@ -319,6 +319,9 @@ class TeamQuerySet(models.QuerySet):
     def event_permission_q(cls, perm_name):
         from ..permissions import assert_valid_event_permission
 
+        if perm_name is None:
+            return Q()
+
         if perm_name.startswith('can_') and perm_name in OLD_TO_NEW_EVENT_COMPAT:  # legacy
             return reduce(operator.and_, [cls.event_permission_q(p) for p in OLD_TO_NEW_EVENT_COMPAT[perm_name]])
         assert_valid_event_permission(perm_name, allow_legacy=False)
@@ -331,6 +334,9 @@ class TeamQuerySet(models.QuerySet):
     def organizer_permission_q(cls, perm_name):
         from ..permissions import assert_valid_organizer_permission
 
+        if perm_name is None:
+            return Q()
+
         if perm_name.startswith('can_') and perm_name in OLD_TO_NEW_ORGANIZER_COMPAT:  # legacy
             return reduce(operator.and_, [cls.organizer_permission_q(p) for p in OLD_TO_NEW_ORGANIZER_COMPAT[perm_name]])
         assert_valid_organizer_permission(perm_name, allow_legacy=False)
@@ -550,7 +556,7 @@ class TeamAPIToken(models.Model):
         """
         return self.team.organizer_permission_set() if self.team.organizer == organizer else set()
 
-    def has_event_permission(self, organizer, event, perm_name=None, request=None) -> bool:
+    def has_event_permission(self, organizer, event, perm_name=None, request=None, session_key=None) -> bool:
         """
         Checks if this token is part of a team that grants access of type ``perm_name``
         to the event ``event``.
@@ -559,6 +565,7 @@ class TeamAPIToken(models.Model):
         :param event: The event to check
         :param perm_name: The permission, e.g. ``event.orders:read``
         :param request: This parameter is ignored and only defined for compatibility reasons.
+        :param session_key: This parameter is ignored and only defined for compatibility reasons.
         :return: bool
         """
         has_event_access = (self.team.all_events and organizer == self.team.organizer) or (

src/pretix/base/services/export.py

@@ -40,6 +40,7 @@ from pretix.base.models import (
     CachedFile, Device, Event, Organizer, ScheduledEventExport, TeamAPIToken,
     User, cachedfile_name,
 )
+from pretix.base.models.auth import UserWithStaffSession
 from pretix.base.models.exports import ScheduledOrganizerExport
 from pretix.base.services.mail import mail
 from pretix.base.services.tasks import (
@@ -211,7 +212,12 @@ def init_event_exporters(event, user=None, token=None, device=None, request=None
         if not perm_holder.has_event_permission(event.organizer, event, permission_name, request) and not staff_session:
             continue
 
-        exporter: BaseExporter = response(event=event, organizer=event.organizer, **kwargs)
+        exporter: BaseExporter = response(
+            event=event,
+            organizer=event.organizer,
+            permission_holder=token or device or (UserWithStaffSession(user) if staff_session else user),
+            **kwargs
+        )
 
         if not exporter.available_for_user(user if user and user.is_authenticated else None):
             continue
@@ -243,7 +249,12 @@ def init_organizer_exporters(
             continue
 
         if issubclass(response, OrganizerLevelExportMixin):
-            exporter: BaseExporter = response(event=Event.objects.none(), organizer=organizer, **kwargs)
+            exporter: BaseExporter = response(
+                event=Event.objects.none(),
+                organizer=organizer,
+                permission_holder=token or device or (UserWithStaffSession(user) if staff_session else user),
+                **kwargs,
+            )
 
             try:
                 if not perm_holder.has_organizer_permission(organizer, response.get_required_organizer_permission(), request) and not staff_session:
@@ -295,7 +306,12 @@ def init_organizer_exporters(
             if not _has_permission_on_any_team_cache[permission_name] and not staff_session:
                 continue
 
-            exporter: BaseExporter = response(event=_event_list_cache[permission_name], organizer=organizer, **kwargs)
+            exporter: BaseExporter = response(
+                event=_event_list_cache[permission_name],
+                organizer=organizer,
+                permission_holder=token or device or (UserWithStaffSession(user) if staff_session else user),
+                **kwargs,
+            )
 
         if not exporter.available_for_user(user if user and user.is_authenticated else None):
             continue

src/pretix/control/forms/orders.py

@@ -436,7 +436,7 @@ class OrderPositionAddForm(forms.Form):
             d['used_membership'] = [m for m in self.memberships if str(m.pk) == d['used_membership']][0]
         else:
             d['used_membership'] = None
-        if d.get("count", 1) and d.get("seat"):
+        if d.get("count", 1) > 1 and d.get("seat"):
             raise ValidationError({
                 "seat": _("You can not choose a seat when adding multiple products at once.")
             })

src/pretix/control/views/organizer.py

@@ -1322,7 +1322,7 @@ class DeviceUpdateView(OrganizerDetailViewMixin, OrganizerPermissionRequiredMixi
     def form_valid(self, form):
         if form.has_changed():
             self.object.log_action('pretix.device.changed', user=self.request.user, data={
-                k: getattr(self.object, k) if k != 'limit_events' else [e.id for e in getattr(self.object, k).all()]
+                k: form.cleaned_data[k] if k != 'limit_events' else [e.id for e in form.cleaned_data[k]]
                 for k in form.changed_data
             })
 

src/tests/base/test_modelimport_orders.py

@@ -991,3 +991,30 @@ def test_import_mixed_order_size_consistency(user, event, item):
         ).get()
     assert ('Inconsistent data in row 2: Column Email address contains value "a2@example.com", but for this order, '
             'the value has already been set to "a1@example.com".') in str(excinfo.value)
+
+
+@pytest.mark.django_db
+@scopes_disabled()
+def test_import_line_endings_mix(event, item, user):
+    # Ensures import works with mixed file endings.
+    # See Ticket#23230806 where a file to import ends with \r\n
+    settings = dict(DEFAULT_SETTINGS)
+    settings['item'] = 'static:{}'.format(item.pk)
+
+    cf = inputfile_factory()
+    file = cf.file
+    file.seek(0)
+    data = file.read()
+    data = data.replace(b'\n', b'\r')
+    data = data.rstrip(b'\r\r')
+    data = data + b'\r\n'
+
+    print(data)
+    cf.file.save("input.csv", ContentFile(data))
+    cf.save()
+
+    import_orders.apply(
+        args=(event.pk, cf.id, settings, 'en', user.pk)
+    )
+    assert event.orders.count() == 3
+    assert OrderPosition.objects.count() == 3

src/tests/base/test_notifications.py

@@ -24,7 +24,6 @@ from decimal import Decimal
 
 import pytest
 from django.core import mail as djmail
-from django.db import transaction
 from django.utils.timezone import now
 from django_scopes import scope
 
@@ -75,47 +74,42 @@ def user(team):
     return user
 
 
-@pytest.fixture
-def monkeypatch_on_commit(monkeypatch):
-    monkeypatch.setattr("django.db.transaction.on_commit", lambda t: t())
-
-
 @pytest.mark.django_db
-def test_notification_trigger_event_specific(event, order, user, monkeypatch_on_commit):
+def test_notification_trigger_event_specific(event, order, user, django_capture_on_commit_callbacks):
     djmail.outbox = []
     user.notification_settings.create(
         method='mail', event=event, action_type='pretix.event.order.paid', enabled=True
     )
-    with transaction.atomic():
+    with django_capture_on_commit_callbacks(execute=True):
         order.log_action('pretix.event.order.paid', {})
     assert len(djmail.outbox) == 1
     assert djmail.outbox[0].subject.endswith("DUMMY: Order FOO has been marked as paid.")
 
 
 @pytest.mark.django_db
-def test_notification_trigger_global(event, order, user, monkeypatch_on_commit):
+def test_notification_trigger_global(event, order, user, django_capture_on_commit_callbacks):
     djmail.outbox = []
     user.notification_settings.create(
         method='mail', event=None, action_type='pretix.event.order.paid', enabled=True
     )
-    with transaction.atomic():
+    with django_capture_on_commit_callbacks(execute=True):
         order.log_action('pretix.event.order.paid', {})
     assert len(djmail.outbox) == 1
 
 
 @pytest.mark.django_db
-def test_notification_trigger_global_wildcard(event, order, user, monkeypatch_on_commit):
+def test_notification_trigger_global_wildcard(event, order, user, django_capture_on_commit_callbacks):
     djmail.outbox = []
     user.notification_settings.create(
         method='mail', event=None, action_type='pretix.event.order.changed.*', enabled=True
     )
-    with transaction.atomic():
+    with django_capture_on_commit_callbacks(execute=True):
         order.log_action('pretix.event.order.changed.item', {})
     assert len(djmail.outbox) == 1
 
 
 @pytest.mark.django_db
-def test_notification_enabled_global_ignored_specific(event, order, user, monkeypatch_on_commit):
+def test_notification_enabled_global_ignored_specific(event, order, user, django_capture_on_commit_callbacks):
     djmail.outbox = []
     user.notification_settings.create(
         method='mail', event=None, action_type='pretix.event.order.paid', enabled=True
@@ -123,24 +117,24 @@ def test_notification_enabled_global_ignored_specific(event, order, user, monkey
     user.notification_settings.create(
         method='mail', event=event, action_type='pretix.event.order.paid', enabled=False
     )
-    with transaction.atomic():
+    with django_capture_on_commit_callbacks(execute=True):
         order.log_action('pretix.event.order.paid', {})
     assert len(djmail.outbox) == 0
 
 
 @pytest.mark.django_db
-def test_notification_ignore_same_user(event, order, user, monkeypatch_on_commit):
+def test_notification_ignore_same_user(event, order, user, django_capture_on_commit_callbacks):
     djmail.outbox = []
     user.notification_settings.create(
         method='mail', event=event, action_type='pretix.event.order.paid', enabled=True
     )
-    with transaction.atomic():
+    with django_capture_on_commit_callbacks(execute=True):
         order.log_action('pretix.event.order.paid', {}, user=user)
     assert len(djmail.outbox) == 0
 
 
 @pytest.mark.django_db
-def test_notification_ignore_insufficient_permissions(event, order, user, team, monkeypatch_on_commit):
+def test_notification_ignore_insufficient_permissions(event, order, user, team, django_capture_on_commit_callbacks):
     djmail.outbox = []
     team.all_event_permissions = False
     team.limit_event_permissions = {"event.vouchers:read": True}
@@ -148,7 +142,7 @@ def test_notification_ignore_insufficient_permissions(event, order, user, team,
     user.notification_settings.create(
         method='mail', event=event, action_type='pretix.event.order.paid', enabled=True
     )
-    with transaction.atomic():
+    with django_capture_on_commit_callbacks(execute=True):
         order.log_action('pretix.event.order.paid', {})
     assert len(djmail.outbox) == 0
 

src/tests/base/test_orders.py

@@ -28,8 +28,9 @@ from zoneinfo import ZoneInfo
 import pytest
 from django.conf import settings
 from django.core import mail as djmail
+from django.db import transaction
 from django.db.models import F, Sum
-from django.test import TestCase, override_settings
+from django.test import TestCase, TransactionTestCase, override_settings
 from django.utils.timezone import make_aware, now
 from django_countries.fields import Country
 from django_scopes import scope
@@ -1225,12 +1226,6 @@ class DownloadReminderTests(TestCase):
         assert len(djmail.outbox) == 0
 
 
-@pytest.fixture
-def class_monkeypatch(request, monkeypatch):
-    request.cls.monkeypatch = monkeypatch
-
-
-@pytest.mark.usefixtures("class_monkeypatch")
 class OrderCancelTests(TestCase):
     def setUp(self):
         super().setUp()
@@ -1258,7 +1253,6 @@ class OrderCancelTests(TestCase):
             self.order.create_transactions()
             generate_invoice(self.order)
             djmail.outbox = []
-        self.monkeypatch.setattr("django.db.transaction.on_commit", lambda t: t())
 
     @classscope(attr='o')
     def test_cancel_canceled(self):
@@ -1351,14 +1345,14 @@ class OrderCancelTests(TestCase):
         self.order.status = Order.STATUS_PAID
         self.order.save()
         djmail.outbox = []
-        cancel_order(self.order.pk, send_mail=True)
-        print([s.subject for s in djmail.outbox])
-        print([s.to for s in djmail.outbox])
+        with self.captureOnCommitCallbacks(execute=True):
+            cancel_order(self.order.pk, send_mail=True)
+
         assert len(djmail.outbox) == 2
-        assert ["invoice@example.org"] == djmail.outbox[0].to
-        assert any(["Invoice_" in a[0] for a in djmail.outbox[0].attachments])
-        assert ["dummy@dummy.test"] == djmail.outbox[1].to
-        assert not any(["Invoice_" in a[0] for a in djmail.outbox[1].attachments])
+        assert ["dummy@dummy.test"] == djmail.outbox[0].to
+        assert not any(["Invoice_" in a[0] for a in djmail.outbox[0].attachments])
+        assert ["invoice@example.org"] == djmail.outbox[1].to
+        assert any(["Invoice_" in a[0] for a in djmail.outbox[1].attachments])
 
     @classscope(attr='o')
     def test_cancel_paid_with_too_high_fee(self):
@@ -1488,8 +1482,7 @@ class OrderCancelTests(TestCase):
         assert self.order.all_logentries().filter(action_type='pretix.event.order.refund.requested').exists()
 
 
-@pytest.mark.usefixtures("class_monkeypatch")
-class OrderChangeManagerTests(TestCase):
+class BaseOrderChangeManagerTestCase:
     def setUp(self):
         super().setUp()
         self.o = Organizer.objects.create(name='Dummy', slug='dummy', plugins='pretix.plugins.banktransfer')
@@ -1552,7 +1545,6 @@ class OrderChangeManagerTests(TestCase):
             self.seat_a1 = self.event.seats.create(seat_number="A1", product=self.stalls, seat_guid="A1")
             self.seat_a2 = self.event.seats.create(seat_number="A2", product=self.stalls, seat_guid="A2")
             self.seat_a3 = self.event.seats.create(seat_number="A3", product=self.stalls, seat_guid="A3")
-        self.monkeypatch.setattr("django.db.transaction.on_commit", lambda t: t())
 
     def _enable_reverse_charge(self):
         self.tr7.eu_reverse_charge = True
@@ -1566,6 +1558,8 @@ class OrderChangeManagerTests(TestCase):
             country=Country('AT')
         )
 
+
+class OrderChangeManagerTests(BaseOrderChangeManagerTestCase, TestCase):
     @classscope(attr='o')
     def test_multiple_commits_forbidden(self):
         self.ocm.change_price(self.op1, Decimal('10.00'))
@@ -3904,15 +3898,16 @@ class OrderChangeManagerTests(TestCase):
 
     @classscope(attr='o')
     def test_set_valid_until(self):
-        self.event.settings.ticket_secret_generator = "pretix_sig1"
-        assign_ticket_secret(self.event, self.op1, force_invalidate=True, save=True)
-        old_secret = self.op1.secret
+        with transaction.atomic():
+            self.event.settings.ticket_secret_generator = "pretix_sig1"
+            assign_ticket_secret(self.event, self.op1, force_invalidate=True, save=True)
+            old_secret = self.op1.secret
 
-        dt = make_aware(datetime(2022, 9, 20, 15, 0, 0, 0))
-        self.ocm.change_valid_until(self.op1, dt)
-        self.ocm.commit()
-        self.op1.refresh_from_db()
-        assert self.op1.secret != old_secret
+            dt = make_aware(datetime(2022, 9, 20, 15, 0, 0, 0))
+            self.ocm.change_valid_until(self.op1, dt)
+            self.ocm.commit()
+            self.op1.refresh_from_db()
+            assert self.op1.secret != old_secret
 
     @classscope(attr='o')
     def test_unset_valid_from_until(self):
@@ -3937,6 +3932,8 @@ class OrderChangeManagerTests(TestCase):
         assert len(djmail.outbox) == 1
         assert len(["Invoice_" in a[0] for a in djmail.outbox[0].attachments]) == 2
 
+
+class OrderChangeManagerTransactionalTests(BaseOrderChangeManagerTestCase, TransactionTestCase):
     @classscope(attr='o')
     def test_new_invoice_send_somewhere_else(self):
         generate_invoice(self.order)

src/tests/base/test_webhooks.py

@@ -25,7 +25,6 @@ from decimal import Decimal
 
 import pytest
 import responses
-from django.db import transaction
 from django.utils.timezone import now
 from django_scopes import scopes_disabled
 
@@ -82,14 +81,9 @@ def force_str(v):
     return v.decode() if isinstance(v, bytes) else str(v)
 
 
-@pytest.fixture
-def monkeypatch_on_commit(monkeypatch):
-    monkeypatch.setattr("django.db.transaction.on_commit", lambda t: t())
-
-
 @pytest.mark.django_db
 @responses.activate
-def test_webhook_trigger_event_specific(event, order, webhook, monkeypatch_on_commit):
+def test_webhook_trigger_event_specific(event, order, webhook, django_capture_on_commit_callbacks):
     responses.add_callback(
         responses.POST, 'https://google.com',
         callback=lambda r: (200, {}, 'ok'),
@@ -97,7 +91,7 @@ def test_webhook_trigger_event_specific(event, order, webhook, monkeypatch_on_co
         match_querystring=None,  # https://github.com/getsentry/responses/issues/464
     )
 
-    with transaction.atomic():
+    with django_capture_on_commit_callbacks(execute=True):
         le = order.log_action('pretix.event.order.paid', {})
     assert len(responses.calls) == 1
     assert json.loads(force_str(responses.calls[0].request.body)) == {
@@ -119,12 +113,12 @@ def test_webhook_trigger_event_specific(event, order, webhook, monkeypatch_on_co
 
 @pytest.mark.django_db
 @responses.activate
-def test_webhook_trigger_global(event, order, webhook, monkeypatch_on_commit):
+def test_webhook_trigger_global(event, order, webhook, django_capture_on_commit_callbacks):
     webhook.limit_events.clear()
     webhook.all_events = True
     webhook.save()
     responses.add(responses.POST, 'https://google.com', status=200)
-    with transaction.atomic():
+    with django_capture_on_commit_callbacks(execute=True):
         le = order.log_action('pretix.event.order.paid', {})
     assert len(responses.calls) == 1
     assert json.loads(force_str(responses.calls[0].request.body)) == {
@@ -138,13 +132,13 @@ def test_webhook_trigger_global(event, order, webhook, monkeypatch_on_commit):
 
 @pytest.mark.django_db
 @responses.activate
-def test_webhook_trigger_global_wildcard(event, order, webhook, monkeypatch_on_commit):
+def test_webhook_trigger_global_wildcard(event, order, webhook, django_capture_on_commit_callbacks):
     webhook.listeners.create(action_type="pretix.event.order.changed.*")
     webhook.limit_events.clear()
     webhook.all_events = True
     webhook.save()
     responses.add(responses.POST, 'https://google.com', status=200)
-    with transaction.atomic():
+    with django_capture_on_commit_callbacks(execute=True):
         le = order.log_action('pretix.event.order.changed.item', {})
     assert len(responses.calls) == 1
     assert json.loads(force_str(responses.calls[0].request.body)) == {
@@ -158,30 +152,30 @@ def test_webhook_trigger_global_wildcard(event, order, webhook, monkeypatch_on_c
 
 @pytest.mark.django_db
 @responses.activate
-def test_webhook_ignore_wrong_action_type(event, order, webhook, monkeypatch_on_commit):
+def test_webhook_ignore_wrong_action_type(event, order, webhook, django_capture_on_commit_callbacks):
     responses.add(responses.POST, 'https://google.com', status=200)
-    with transaction.atomic():
+    with django_capture_on_commit_callbacks(execute=True):
         order.log_action('pretix.event.order.changed.item', {})
     assert len(responses.calls) == 0
 
 
 @pytest.mark.django_db
 @responses.activate
-def test_webhook_ignore_disabled(event, order, webhook, monkeypatch_on_commit):
+def test_webhook_ignore_disabled(event, order, webhook, django_capture_on_commit_callbacks):
     webhook.enabled = False
     webhook.save()
     responses.add(responses.POST, 'https://google.com', status=200)
-    with transaction.atomic():
+    with django_capture_on_commit_callbacks(execute=True):
         order.log_action('pretix.event.order.changed.item', {})
     assert len(responses.calls) == 0
 
 
 @pytest.mark.django_db
 @responses.activate
-def test_webhook_ignore_wrong_event(event, order, webhook, monkeypatch_on_commit):
+def test_webhook_ignore_wrong_event(event, order, webhook, django_capture_on_commit_callbacks):
     webhook.limit_events.clear()
     responses.add(responses.POST, 'https://google.com', status=200)
-    with transaction.atomic():
+    with django_capture_on_commit_callbacks(execute=True):
         order.log_action('pretix.event.order.changed.item', {})
     assert len(responses.calls) == 0
 
@@ -189,10 +183,10 @@ def test_webhook_ignore_wrong_event(event, order, webhook, monkeypatch_on_commit
 @pytest.mark.django_db
 @pytest.mark.xfail(reason="retries can't be tested with celery_always_eager")
 @responses.activate
-def test_webhook_retry(event, order, webhook, monkeypatch_on_commit):
+def test_webhook_retry(event, order, webhook, django_capture_on_commit_callbacks):
     responses.add(responses.POST, 'https://google.com', status=500)
     responses.add(responses.POST, 'https://google.com', status=200)
-    with transaction.atomic():
+    with django_capture_on_commit_callbacks(execute=True):
         order.log_action('pretix.event.order.paid', {})
     assert len(responses.calls) == 2
     with scopes_disabled():
@@ -216,9 +210,9 @@ def test_webhook_retry(event, order, webhook, monkeypatch_on_commit):
 
 @pytest.mark.django_db
 @responses.activate
-def test_webhook_disable_gone(event, order, webhook, monkeypatch_on_commit):
+def test_webhook_disable_gone(event, order, webhook, django_capture_on_commit_callbacks):
     responses.add(responses.POST, 'https://google.com', status=410)
-    with transaction.atomic():
+    with django_capture_on_commit_callbacks(execute=True):
         order.log_action('pretix.event.order.paid', {})
     assert len(responses.calls) == 1
     webhook.refresh_from_db()

src/tests/conftest.py

@@ -131,3 +131,8 @@ def set_lock_namespaces(request):
             yield
     else:
         yield
+
+
+@pytest.fixture
+def class_monkeypatch(request, monkeypatch):
+    request.cls.monkeypatch = monkeypatch

src/tests/control/test_auth.py

@@ -385,11 +385,6 @@ class RegistrationFormTest(TestCase):
         self.assertEqual(response.status_code, 403)
 
 
-@pytest.fixture
-def class_monkeypatch(request, monkeypatch):
-    request.cls.monkeypatch = monkeypatch
-
-
 @pytest.mark.usefixtures("class_monkeypatch")
 class Login2FAFormTest(TestCase):
 

src/tests/control/test_events.py

@@ -49,11 +49,6 @@ from tests.base import SoupTest, extract_form_fields
 from pretix.base.models import Event, LogEntry, Order, Organizer, Team, User
 
 
-@pytest.fixture
-def class_monkeypatch(request, monkeypatch):
-    request.cls.monkeypatch = monkeypatch
-
-
 @pytest.mark.usefixtures("class_monkeypatch")
 class EventsTest(SoupTest):
     @scopes_disabled()

src/tests/control/test_organizer.py

@@ -33,11 +33,6 @@ from tests.base import SoupTest, extract_form_fields
 from pretix.base.models import Event, Organizer, OutgoingMail, Team, User
 
 
-@pytest.fixture
-def class_monkeypatch(request, monkeypatch):
-    request.cls.monkeypatch = monkeypatch
-
-
 @pytest.mark.usefixtures("class_monkeypatch")
 class OrganizerTest(SoupTest):
     @scopes_disabled()

src/tests/control/test_user.py

@@ -286,11 +286,6 @@ class UserPasswordChangeTest(SoupTest):
         assert self.user.needs_password_change is False
 
 
-@pytest.fixture
-def class_monkeypatch(request, monkeypatch):
-    request.cls.monkeypatch = monkeypatch
-
-
 @pytest.mark.usefixtures("class_monkeypatch")
 class UserSettings2FATest(SoupTest):
     def setUp(self):

src/tests/presale/test_checkout.py

@@ -33,7 +33,7 @@ from django.conf import settings
 from django.core import mail as djmail
 from django.core.files.uploadedfile import SimpleUploadedFile
 from django.core.signing import dumps
-from django.test import TestCase
+from django.test import TestCase, TransactionTestCase
 from django.utils.crypto import get_random_string
 from django.utils.timezone import now
 from django_countries.fields import Country
@@ -60,12 +60,6 @@ from pretix.testutils.sessions import get_cart_session_key
 from .test_timemachine import TimemachineTestMixin
 
 
-@pytest.fixture
-def class_monkeypatch(request, monkeypatch):
-    request.cls.monkeypatch = monkeypatch
-
-
-@pytest.mark.usefixtures("class_monkeypatch")
 class BaseCheckoutTestCase:
     @scopes_disabled()
     def setUp(self):
@@ -104,7 +98,6 @@ class BaseCheckoutTestCase:
         self.workshopquota.items.add(self.workshop2)
         self.workshopquota.variations.add(self.workshop2a)
         self.workshopquota.variations.add(self.workshop2b)
-        self.monkeypatch.setattr("django.db.transaction.on_commit", lambda t: t())
 
     def _set_session(self, key, value):
         session = self.client.session
@@ -4420,6 +4413,8 @@ class CheckoutTestCase(BaseCheckoutTestCase, TimemachineTestMixin, TestCase):
             assert len(djmail.outbox) == 1
             assert any(["Invoice_" in a[0] for a in djmail.outbox[0].attachments])
 
+
+class CheckoutTransactionTestCase(BaseCheckoutTestCase, TransactionTestCase):
     def test_order_confirmation_mail_invoice_sent_somewhere_else(self):
         self.event.settings.invoice_address_asked = True
         self.event.settings.invoice_address_required = True