pageadmin.py 文件源码

def change_view(self, request, object_id, form_url='', extra_context=None):
        """
        The 'change' admin view for the Page model.
        """
        if extra_context is None:
            extra_context = {'basic_info': True}
        try:
            obj = self.model.objects.get(pk=object_id)
        except self.model.DoesNotExist:
            # Don't raise Http404 just yet, because we haven't checked
            # permissions yet. We don't want an unauthenticated user to be able
            # to determine whether a given object exists.
            obj = None
        else:
            context = {
                'page': obj,
                'CMS_PERMISSION': get_cms_setting('PERMISSION'),
                'ADMIN_MEDIA_URL': settings.STATIC_URL,
                'can_change': obj.has_change_permission(request),
                'can_change_permissions': obj.has_change_permissions_permission(request),
                'current_site_id': settings.SITE_ID,
            }
            context.update(extra_context or {})
            extra_context = self.update_language_tab_context(request, obj, context)

        tab_language = get_language_from_request(request)
        extra_context.update(self.get_unihandecode_context(tab_language))

        response = super(PageAdmin, self).change_view(
            request, object_id, form_url=form_url, extra_context=extra_context)
        if tab_language and response.status_code == 302 and response._headers['location'][1] == request.path_info:
            location = response._headers['location']
            response._headers['location'] = (location[0], "%s?language=%s" % (location[1], tab_language))
        if request.method == "POST" and response.status_code in (200, 302):
            if 'history' in request.path_info:
                return HttpResponseRedirect(admin_reverse('cms_page_change', args=(quote(object_id),)))
            elif 'recover' in request.path_info:
                return HttpResponseRedirect(admin_reverse('cms_page_change', args=(quote(object_id),)))
        return response