[Zope-dev] RE: how to get a URL-based session dictionary working with Extern alObjects? alObjects?

[Amos Latteier]

Michel Pelletier wrote:

> >I believe, possibly on the old site, that there is a Zope 
> produce that
> >lets you plug bobo apps directly into the Zope space with no
> >modification.
> >
> >http://www.zope.org:8080/Download/Contrib/ExternalObjects.tar.gz
> >
> >I think this is it.  Someone probably needs to adopt this orphaned
> >child.  (I think maybe Amos wrote it, Amos?)

Yes, it's my fault ;-)

Michael Olivier wrote:
> Belated thanks on this help with ExternalObjects, Michel.  I got this 
> working with our ZPublisher/PCGI objects into zope, but I'm 
> stuck on one 
> issue:  we encode the HTTP session in the URL, and have a 
> dictionary class 
> that is invoked to get the session object from a 
> __getitem__() call.  It 
> works file with ZPublisher but isn't working with 
> ExternalObjects in Zope.
> 
> A sample URL is:
> 
>          localhost/Zope/sess/Z8Q/home
> 
> ...where sess is an external object declared in zope containing a 
> dictionary with an entry for Z8Q.  I am using the old BoboDictionary, 
> subclassed to override __getitem__() with code to look up the 
> Z8Q key and 
> return a session object.
> I also set __getattr__ = __getitem__ ...

This all seems reasonable, though I don't think you need to set
__getattr__ to __getitem__.

> Michel, Amos, anyone -- ideas for what's going wrong, or what 
> else I need 
> to do?  (Error output below.)

Well this traceback indicates that when ZPublisher does a getitem on
your object to find a subobject it's getting an exception. (See lines
330 and following of ZPublisher/BaseRequest.py) 

You should figure out what this exception is, and why it's being raised.

Good luck!

-Amos

BTW, if your old bobo app uses BoboPOS, there could be problems
incorporating it into Zope...

--
Amos Latteier         mailto:amos@digicool.com
Digital Creations     http://www.digicool.com