admin.py 文件源码

def get_tree(self, request):
        """
        Get html for the descendants (only) of given page or if no page_id is
        provided, all the root nodes.

        Used for lazy loading pages in cms.pagetree.js

        Permission checks is done in admin_utils.get_admin_menu_item_context
        which is called by admin_utils.render_admin_menu_item.
        """
        page_id = request.GET.get('pageId', None)
        site_id = request.GET.get('site', None)

        try:
            site_id = int(site_id)
            site = Site.objects.get(id=site_id)
        except (TypeError, ValueError, MultipleObjectsReturned,
                ObjectDoesNotExist):
            site = get_current_site(request)

        if page_id:
            page = get_object_or_404(self.model, pk=int(page_id))
            pages = page.get_children()
        else:
            pages = Page.get_root_nodes().filter(site=site, publisher_is_draft=True)#\
                #.exclude(title_set__title__startswith='X')

        pages = (
            pages
            .select_related('parent', 'publisher_public', 'site')
            .prefetch_related('children')
        )
        response = render_admin_rows(request, pages, site=site, filtered=False)
        return HttpResponse(response)