[Zope-CMF] [dev] some questions regarding Exceptions

[Yuppie]

Hi!


Today I did have a closer look at Exception handling in CMF. These are 
my questions:


1.) document_edit.py, metadata_edit.py and newsitem_edit.py in 
CMFDefault are using this pattern:

try:
     context.edit( ...
     context.REQUEST.RESPONSE.redirect( ...
except Exception, msg:
     context.REQUEST.RESPONSE.redirect( ...

Am I right that these excepts also catch ConflictErrors, what's a Bad 
Thing in general and especially with edit methods?

see: <http://mail.zope.org/pipermail/zope-cmf/2003-June/018870.html>


2.) There are still many string exceptions in CMF. All the others are 
not accessible TTW.

What would be the right way to resolve this?

We could use allow_module() and allow_class(). I guess in that case all 
Exceptions should be in one module. Something like CMFCoreExceptions.py?

Or are there some CMF Exceptions that shouldn't be accessible TTW?

Other thoughts?


Cheers,

Yuppie