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from django.http import HttpResponseRedirect
from django_authopenid.util import get_next_url
from django.utils.translation import ugettext as _
from user_messages import create_message, get_and_delete_messages
import settings
import logging
class AnonymousMessageManager(object):
def __init__(self,request):
self.request = request
def create(self,message=''):
create_message(self.request,message)
def get_and_delete(self):
messages = get_and_delete_messages(self.request)
return messages
def dummy_deepcopy(*arg):
"""this is necessary to prevent deepcopy() on anonymous user object
that now contains reference to request, which cannot be deepcopied
"""
return None
class ConnectToSessionMessagesMiddleware(object):
def process_request(self, request):
if not request.user.is_authenticated():
request.user.__deepcopy__ = dummy_deepcopy #plug on deepcopy which may be called by django db "driver"
request.user.message_set = AnonymousMessageManager(request) #here request is linked to anon user
request.user.get_and_delete_messages = request.user.message_set.get_and_delete
#also set the first greeting one time per session only
if 'greeting_set' not in request.session:
request.session['greeting_set'] = True
msg = _('first time greeting with %(url)s') % {'url':settings.GREETING_URL}
request.user.message_set.create(message=msg)
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