def sites_postsave_handler(sender, **kwargs):
if 'django.contrib.sites' in settings.INSTALLED_APPS:
if ((sender == Contact or sender in Contact.__subclasses__()) and kwargs['created']):
ContactSite.objects.create(contact=kwargs['instance'], site=Site.objects.get_current())
elif ((sender == User or sender in User.__subclasses__()) and kwargs['created']):
UserSite.objects.create(user=kwargs['instance'], site=Site.objects.get_current())
elif ((sender == Group or sender in Group.__subclasses__()) and kwargs['created']):
GroupSite.objects.create(group=kwargs['instance'], site=Site.objects.get_current())
# elif (sender == Connection and kwargs['created']):
# ConnectionSite.objects.create(connection = kwargs['instance'], site=Site.objects.get_current())
elif ((sender == Message or sender in Message.__subclasses__()) and kwargs['created']):
MessageSite.objects.create(message=kwargs['instance'], site=Site.objects.get_current())
