def process_response(self, request, response):
        if not self.is_cms_request(request):
            return response

        from django.utils.cache import add_never_cache_headers

        if ((hasattr(request, 'toolbar') and request.toolbar.edit_mode) or
                not all(ph.cache_placeholder
                        for ph, __ in getattr(request, 'placeholders', {}).values())):
            add_never_cache_headers(response)

        if hasattr(request, 'user') and request.user.is_staff and response.status_code != 500:
            try:
                pk = LogEntry.objects.filter(
                    user=request.user,
                    action_flag__in=(ADDITION, CHANGE)
                ).only('pk').order_by('-pk')[0].pk
                if hasattr(request, 'cms_latest_entry') and request.cms_latest_entry != pk:
                    log = LogEntry.objects.filter(user=request.user, action_flag__in=(ADDITION, CHANGE))[0]
                    request.session['cms_log_latest'] = log.pk
            # If there were no LogEntries, just don't touch the session.
            # Note that in the case of a user logging-in as another user,
            # request may have a cms_latest_entry attribute, but there are no
            # LogEntries for request.user.
            except __HOLE__:
                pass
        return response
dataset/ETHPy150Open divio/django-cms/cms/middleware/toolbar.py/ToolbarMiddleware.process_response