app/ranklist/common.py
author Lennard de Rijk <ljvderijk@gmail.com>
Thu, 30 Jul 2009 09:53:22 +0200
changeset 2688 dfe0439a0711
parent 1597 e7b7ea113a3b
permissions -rwxr-xr-x
Added list of Surveys to the Project's manage page. This list will show wether or not a Survey has been taken and will also feature links to (re)take a Survey and in the near future to see the actual SurveyRecord. Note that the take Survey link is working however Org Admins will receive an access denied message when following this link.

#!/usr/bin/python
#
# Copyright 2008 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License 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.

"""Convenience functions.
"""

from google.appengine.api import datastore


def transactional(operation):
  """Decorator that wraps a method in a datastore transaction.

  The method will be called through datastore.RunInTransaction, making the
  operation atomic.
  """
  def transactional_operation(*args, **kwargs):
    return datastore.RunInTransaction(operation, *args, **kwargs)
  return transactional_operation