[Zope-CMF] IObjectAdded vs. manage_afterAdd

[Jens Vagelpohl]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1


On 22 Jan 2007, at 21:57, Doyon, Jean-Francois wrote:

> Hello,
>
> I'm trying to use IObjectAdded for an object that looks like this:
>
> class MapServerMap(PortalFolder, PortalContent, CLFMetadataImpl):
>     """ Map Server Map Class """
>
>     implements(IMapServerMap)
>
> Without success ... The event doesn't seem to fire at all.

If you want to react to an event you need to do two things:

- - mark your content item with an interface (you already did this)

- - code up a handler for the event

- - register your handler for the event

Only implementing some interface is not enough. You could have a  
function like this somewhere:

def handleEvent(ob, event):
     """ Event subscriber for (IMapServerMap, IObjectAdded) events.
     """
     if event.newParent is not None:
         <do something>

and a registration like this:

   <subscriber
       for=".interfaces.IMapServerMap
            zope.component.interfaces.IObjectAdded"
       handler=".MyModule.handleEvent"
       />

jens


-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.5 (Darwin)

iD8DBQFFtUexRAx5nvEhZLIRAs64AJ0X3BFyHHvi0t9Xh6PXu9B7owh1CwCgm15n
LB0X4yyOEc9+fU5XQjvjHC8=
=cB8Z
-----END PGP SIGNATURE-----