[Zope] Re: adding a custom attribute to a mybrain object

[Florent Guillaume]

Huron wrote:
>         I'd like to sort of add some metadata to a returned mybrain before it gets
> handed to the skin for display.
>         I've been thinking that it could be possible to just do a 'setattr' on my
> mybrain ... but it's not working since the brain is a very special object
> relatively to it's attributes (from what I understand browsing the code).
>         It there a way to do that properly ?

Brains are based on Record, a class dating back to the origins of zope. 
Records are quite... peculiar, let's say. They only allow setting 
attributes which are in their class's __record_schema__. Go figure.

If I had your problem, I'd copy all the brain attributes on an instance 
of another trivial class deriving from object. brain.__record_schema__ 
will come in handy there.

Florent

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