app/soc/modules/gci/tasks/task_update.py

# Copyright 2009 the Melange authors.
#
# 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.

"""Appengine Tasks related to GCI Task handling."""

from django import http
from django.conf.urls import url
from django.utils.translation import ugettext

from soc.tasks.helper import error_handler

from soc.modules.gci.logic import task as task_logic
from soc.modules.gci.models.task import GCITask


class TaskUpdate(object):
  """Tasks that are involved in dealing with GCITasks.
  """

  DEF_TASK_UPDATE_SUBJECT = ugettext(
      '[%(program_name)s Task Update] %(title)s')

  def djangoURLPatterns(self):
    """Returns the URL patterns for the tasks in this module.
    """
    patterns = [
        url(r'^tasks/gci/task/update/(?P<id>(\d+))$', self.updateGCITask,
            name='task_update_GCI_task'),
        ]
    return patterns

  def updateGCITask(self, request, id, *args, **kwargs):
    """Method executed by Task Queue API to update a GCI Task to
    relevant state.

    Args:
      request: the standard Django HTTP request object
    """
    id = int(id)

    task = GCITask.get_by_id(id)

    if not task:
      # invalid task data, log and return OK
      return error_handler.logErrorAndReturnOK(
          'No GCITask found for id: %s' % id)

    task_logic.updateTaskStatus(task)

    return http.HttpResponse()