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pretix_original/src/pretix/helpers/compat.py
2025-10-10 15:32:46 +02:00

61 lines
2.5 KiB
Python

#
# This file is part of pretix (Community Edition).
#
# Copyright (C) 2014-2020 Raphael Michel and contributors
# Copyright (C) 2020-today pretix 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/>.
#
import datetime
import sys
from django.forms import Form
from django.views.generic.detail import (
BaseDetailView, SingleObjectTemplateResponseMixin,
)
from django.views.generic.edit import DeletionMixin, FormMixin
def date_fromisocalendar(isoyear, isoweek, isoday):
if sys.version_info < (3, 8):
return datetime.datetime.strptime(f'{isoyear}-W{isoweek}-{isoday}', "%G-W%V-%u")
else:
return datetime.datetime.fromisocalendar(isoyear, isoweek, isoday)
class CompatDeleteView(SingleObjectTemplateResponseMixin, DeletionMixin, FormMixin, BaseDetailView):
"""
This is a DeleteView variant that allows us to create subclasses that work on both Django 3.2 and
Django 4.0.
"""
form_class = Form
template_name_suffix = "_confirm_delete"
def post(self, request, *args, **kwargs):
# Set self.object before the usual form processing flow.
# Inlined because having DeletionMixin as the first base, for
# get_success_url(), makes leveraging super() with ProcessFormView
# overly complex.
self.object = self.get_object()
form = self.get_form()
if form.is_valid():
return self.form_valid(form)
else:
return self.form_invalid(form)
def form_valid(self, form):
return self.delete(self.request, self.args, self.kwargs)