app/gae_django.py

   1 #!/usr/bin/python2.5
   2 #
   3 # Copyright 2008 the Melange authors.
   4 #
   5 # Licensed under the Apache License, Version 2.0 (the "License");
   6 # you may not use this file except in compliance with the License.
   7 # You may obtain a copy of the License at
   8 #
   9 #   http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 # Unless required by applicable law or agreed to in writing, software
  12 # distributed under the License is distributed on an "AS IS" BASIS,
  13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 # See the License for the specific language governing permissions and
  15 # limitations under the License.
  16
  17 """Module containing Melange Django 1.0+ configuration for Google App Engine.
  18 """
  19
  20 import logging
  21 import os
  22 import sys
  23
  24 __authors__ = [
  25   # alphabetical order by last name, please
  26   '"Pawel Solyga" <pawel.solyga@gmail.com>',
  27   ]
  28
  29
  30 if os.environ['SERVER_SOFTWARE'].startswith('Dev'):
  31
  32   # Remove the standard version of Django.
  33   for k in [k for k in sys.modules if k.startswith('django')]:
  34     del sys.modules[k]
  35
  36   # Force sys.path to have our own directory first, in case we want to import
  37   # from it. This lets us replace the built-in Django
  38   sys.path.insert(0, os.path.abspath(os.path.dirname(__file__)))
  39   sys.path.insert(0, os.path.abspath('django'))
  40   sys.path.insert(0, os.path.abspath('django.zip'))
  41
  42 else:
  43   # Declare the Django version we need.
  44   from google.appengine.dist import use_library
  45   use_library('django', '1.0')
  46
  47 # Force Django to reload its settings.
  48 from django.conf import settings
  49 settings._target = None
  50
  51 # Must set this env var before importing any part of Django
  52 os.environ['DJANGO_SETTINGS_MODULE'] = 'settings'
  53
  54 import django.core.signals
  55 import django.db
  56
  57 # Log errors.
  58 def log_exception(*args, **kwds):
  59   """Function used for logging exceptions.
  60   """
  61   logging.exception('Exception in request:')
  62
  63 # Log all exceptions detected by Django.
  64 django.core.signals.got_request_exception.connect(log_exception)
  65
  66 # Unregister the rollback event handler.
  67 django.core.signals.got_request_exception.disconnect(
  68     django.db._rollback_on_exception)