[Zope] Re: [Zope-dev] post-publishing hook

Ivo van der Wijk ivo@amaze.nl
Fri, 29 Nov 2002 19:33:06 +0100


On Fri, Nov 29, 2002 at 01:07:24PM +0100, Carlo Giomini wrote:
> Dear all,
> I need a sort of post-publishing hook (so to say). I need Zope to call a
> function of mine as the very last action of publishing a request, i.e. after
> having built the response (and sent it to the browser possibly), but
> before starting publishing a new request. My Zope server is running as a
> single-threaded app.
> Does Zope support this any way?
> 

There is a way, but I find it somewhat ugly/hackish. But Shane uses it
in CookieCrumbler, so it must be good ;)

You can pass an instance to REQUEST._hold, which should be deleted 
when REQUEST gets deleted, so at the complete end of the request.

This means you can pass an instance to a class that defines a __del__
method, where you can do your work.

You'll be working outside the REQUEST transaction at that moment, so please
keep that in mind when modifying objects.

Cheers

	Ivo

-- 
Drs. I.R. van der Wijk                                      -=-              
Brouwersgracht 132                             Amaze Internet Services V.O.F.
1013 HA Amsterdam, NL                                       -=-              
T +31-20-4688336         F +31-20-4688337        Linux/Web/Zope/SQL/MMBase   
W http://www.amaze.nl    E info@amaze.nl             Network Solutions        
W http://vanderwijk.info E ivo@amaze.nl                 Consultancy          
PGP http://vanderwijk.info/pgp                              -=-