[Zope-CMF] Q. about isConstructionAllowed

[Tres Seaver]

On Thu, 4 Oct 2001, seb bacon wrote:

> * seb bacon <seb@jamkit.com> [011004 13:48]:
> > In the light of the kind of problems which occur when creating new
> > content types (see below), I was wondering why exceptions get trapped
> > by default in TypesTool._getFactoryMethod?  This mostly servers to
> > obscure bugs, which is Bad.
> 
> OK, further investigation shows that ZopeSecurityPolicy sometimes
> raises Unauthorized exceptions, so I'll rephrase my question: is there
> any reason why _getFactoryMethod shouldn't read
> 
>   except Unauthorized:
> 
> rather than
> 
>   except:

Right now, the Types Tool assumes that *any* error in finding
or validating the factory method should make the FTI "non-addable".
If we can decide what behavior the normal CMF user should see for a
FTI which has a malformed factory or product name, and then
implementing it should be easy.  If you don't swallow unexpected
exceptions here, then your users will be unable to add *any* content
if a single FTI is "broken".

Tres.
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Tres Seaver                                tseaver@zope.com
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