Adrien Di Mascio <Adrien.DiMascio@logilab.fr> [Tue, 10 Nov 2009 18:11:24 +0100] rev 3816
[web] set pageid at request instanciation rather than in htmlheader template
In some occasions, we need to force a pageid: typically an ajax-rendererd
creation form would need to use the pageid of the main page to correclty
set it's page_data (e.g. rql varmker).
If pageid is found in req.form, it's used, otherwise we build a new one with.
make_uid(). The behaviour should be consistent with the former one in
JSonController.