[Zope3-Users] Security Question

[Jachin Rupe]

hi there

Is there a good example out there of setting up security based on  
some sort of ownership system?

I'm working my way though the Zope book.  What I would like to be  
able to do is allow the User who created a message to edit only  
"their" messages (the messages they created).  I think I've read all  
the relevant chapters of the Zope book and I can't find a place where  
it explains that.  Did I miss is somewhere?

Could some one point me in the right direction for figuring this out?

If this isn't in the Zope book it may make a good addition.  There  
are lots of instances I can think of in application where someone  
would want to grant privileges based on ownership.

thanks

-jachin