[Zope-CMF] How to attach own properties to existing portal types (like metadata does)?

[Grégoire Weber]

Hi Dieter,

Thanks. 

I looked there before asking my question, but didn't see the point.
After having had a look at a CMF rating tool I saw, what I looked
for in the discussion tool also:

  Additional information get attached to objects by setting attributes
  (this is python specific and would not work in Java). It seems very easy.

As example a possible tool get method:

    security.declarePublic( 'getInfoFor' )
    def getInfoFor(self, content):
        """
            Return the additional information about content, creating it if need be.
        """
        info = getattr(content, 'info', None)
        if not info:
            info = content.info = InfoContainer()
        
        return info

The InfoContainer class defines the wanted behaviour attached to the content object.

class InfoCOntainer:
    pass # or probably more :-)

That helps fro now, further questions when problems arise ... :-)

Greetings, Greg

At 23:43 23.07.2002 +0200, you wrote:
>=?iso-8859-1?Q?Gr=E9goire?= Weber writes:
> > ... adding additional data to objects ...
> > Does someone have any pointers where to look, where to find 
> > examples, which interface to implement to attach such properties, 
> > etc.?
>Look at the "Discussion" Tool, for example.
>
>
>Dieter 

_____________________________________
Grégoire Weber
mailto:gregoire.weber@switzerland.org