[Zope-CMF] [GenericSetup] Adding expressiveness in XML or disperse setup in both Python and XML files?

[Damien Baty (ML)]

	Hello,

   After having been quite enthusiastic about Generic Setup, I am now a 
bit disappointed. There are several use cases (see my recent message 
about not being able to register a permission, for example) where I 
cannot express what I want in XML. Obviously, I can write the missing 
pieces in Python, but that would cause the configuration of the same 
component (e.g. security policy, with roles and permissions) to happen 
both in XML files _and_ in Python code. This is something I do not find 
convenient. I would prefer having things compartmented (if not in one 
file): one file for everything about roles and permissions, one file for 
everything about indexes, etc.

   Then I guess I have a few solutions:
  - live with it :) That is, write what I can in XML and the rest in Python;
  - write almost everything in Python;
  - enhance GS importers so that I would be able to express more things 
via XML. The obvious drawback is that adding expressiveness to the XML 
schema will probably add complexity (and I am aware that this is 
probably the main reason why some tasks cannot be done in XML) ;

   GenericSetup is quite new to me, so I would definitely appreciate 
advanced users' feedback about that. What solution did (or would) you 
choose, among those 3 above? Additional suggestions are welcome, too. :)

-- 
Damien Baty
Pilot Systems - 9, rue Desargues - 75011 Paris - France
Telephone : +33 (0)1 44 53 05 55 - http://www.pilotsystems.net
Free Zope & Plone hosting - http://www.objectis.org