forked from Uninett/nav
/
legacy.py
38 lines (30 loc) · 1.27 KB
/
legacy.py
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#
# Copyright (C) 2013 Uninett AS
#
# This file is part of Network Administration Visualized (NAV).
#
# NAV is free software: you can redistribute it and/or modify it under
# the terms of the GNU General Public License version 3 as published by
# the Free Software Foundation.
#
# 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 General Public License for more
# details. You should have received a copy of the GNU General Public License
# along with NAV. If not, see <http://www.gnu.org/licenses/>.
#
"""Various functionality to bridge legacy NAV code with Django"""
from django.utils.deprecation import MiddlewareMixin
from nav import db
class LegacyCleanupMiddleware(MiddlewareMixin):
"""Django middleware to clean up NAV legacy database connections at the
end of each request cycle.
"""
def process_response(self, _request, response):
"""Rolls back any uncommitted legacy database connections,
to avoid idling indefinitely in transactions.
"""
connections = (v.object for v in db._connection_cache.values())
for conn in connections:
conn.rollback()
return response