Never record undo information for session or data import
for session, it may causes unlimited database size expansion while it makes no sense
to undo this kind of changes. For data import, they are created programatically hence
we may not want to undo this either.
.. _ajax:
Ajax
----
CubicWeb provides a few helpers to facilitate *javascript <-> python* communications.
You can, for instance, register some python functions that will become
callable from javascript through ajax calls. All the ajax URLs are handled
by the :class:`cubicweb.web.views.ajaxcontroller.AjaxController` controller.
.. automodule:: cubicweb.web.views.ajaxcontroller