old_contents: #!/usr/bin/python2.5
  #
  # 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.
  
  """Middleware to set up and empty the value store.
  """
  
  __authors__ = [
    '"Sverre Rabbelier" <sverre@rabbelier.nl>',
    ]
  
  
  from soc.modules import callback
  
  
  class ValueStoreMiddleware(object):
    """Middleware class to set up and empty the value store.
    """
  
    def start(self, request):
      """Sets up the value store.
  
      Args:
        request: a Django HttpRequest object
      """
  
      core = callback.getCore()
      core.startNewRequest(request)
  
    def end(self, request):
      """Empties the value store.
  
      Args:
        request: a Django HttpRequest object
      """
  
      core = callback.getCore()
      core.endRequest(request)
  
    def process_request(self, request):
      """Called when a request is made.
  
      See the Django middleware documentation for an explanation of
      the method signature.
      """
      self.start(request)
  
    def process_response(self, request, response):
      """Called when a response is returned.
  
      See the Django middleware documentation for an explanation of
      the method signature.
      """
  
      self.end(request)
      return response
  
    def process_exception(self, request, exception):
      """Called when an uncaught exception is raised.
  
      See the Django middleware documentation for an explanation of
      the method signature.
      """
  
      self.end(request)
  
new_contents: #!/usr/bin/python2.5
  #
  # 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.
  
  """Middleware to set up and empty the value store.
  """
  
  __authors__ = [
    '"Sverre Rabbelier" <sverre@rabbelier.nl>',
    ]
  
  
  from soc.modules import callback
  
  
  class ValueStoreMiddleware(object):
    """Middleware class to set up and empty the value store.
    """
  
    def start(self, request):
      """Sets up the value store.
  
      Args:
        request: a Django HttpRequest object
      """
  
      core = callback.getCore()
      core.startNewRequest(request)
  
    def end(self, request, optional):
      """Empties the value store.
  
      Args:
        request: a Django HttpRequest object
      """
  
      core = callback.getCore()
      core.endRequest(request, optional)
  
    def process_request(self, request):
      """Called when a request is made.
  
      See the Django middleware documentation for an explanation of
      the method signature.
      """
      self.start(request)
  
    def process_response(self, request, response):
      """Called when a response is returned.
  
      See the Django middleware documentation for an explanation of
      the method signature.
      """
  
      self.end(request, True)
      return response
  
    def process_exception(self, request, exception):
      """Called when an uncaught exception is raised.
  
      See the Django middleware documentation for an explanation of
      the method signature.
      """
  
      self.end(request, False)
  
subject: Use the new optional argument to endRequest in the middleware