[Zope-CMF] Re: GenericSetup list property purge

[Florent Guillaume]

Florent Guillaume wrote:
> I recently introduced the fact that in extension profiles list  
> properties aren't purged by default.
> But really this introduces problems, as if you simply import an  
> extension profile twice you'll get all you lists doubled.
> 
> So I think I'll use the opposite semantic, closer to what was the  case 
> before: purge by default for lists even in extension profiles,  except 
> if purge="False" is present on the property.

I checked this in.

But actually this revealed what I think is slightly unclear behaviour in the 
case of loading extension profiles: the extension profile can happily modify 
objects without them being purged, but I believe that as soon as it has to 
create a new object, the import context should be switched to 
_should_purge=True for that object and the recursion inside it.

What do you think?

Florent

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Florent Guillaume, Nuxeo (Paris, France)   CTO, Director of R&D
+33 1 40 33 71 59   http://nuxeo.com   fg at nuxeo.com