[Zope] Help on __before_publishing_traverse__.

[Sidnei da Silva]

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Hello everyone.

Im developing a product in python that does some content management 
functions, and one of the features I`m trying to implement is to make the 
content public based on some properties, so, i`ve add the following code to 
my product:

    def __before_publishing_traverse__(self, REQUEST=None, *args, **kw):
      if hasattr(self, 'data_inicial') and hasattr(self, 'data_final'):
        if (DateTime.DateTime(self.data_inicial).ISO() < 		
DateTime.DateTime().ISO()) \
        and (DateTime.DateTime(self.data_final).ISO() > 
DateTime.DateTime().ISO()) \
        and self.getStatus()=='publicado':
          self.manage_permission(permission_to_manage='View', roles=[], 
acquire=1, REQUEST=None)
          self.manage_permission(permission_to_manage='Access contents 
information', roles=[], acquire=1, REQUEST=None)
        else:
          self.manage_permission(permission_to_manage='View', 
roles=['Manager'], acquire=0, REQUEST=None)
          self.manage_permission(permission_to_manage='Access contents 
information', roles=['Manager'], acquire=0, REQUEST=None)

My doubt is:

This code works OK for the view property. When a user tries to access the 
page, and the date range is outside the permitted range, it gets a login 
screen. But then is the following problem:

I have a dtml-in that lists the documents inside this folder, and i want it 
not to list the document which is outside the range. But i want to do this 
based on the permission. For what i know, the permission to access the 
properties of the document is "Access content information". But the strange 
thing is that the __before_publishing_traverse__ code is run, the permissions 
are set ok but the document keeps listing, except when i click the security 
tab. Then, suddenly the document isnt listed anymore.

I think that im missing some operation that the security tab performs to make 
the permissions begin to work. Can anybody help me? Anyone know of a method 
that gets accessed when i access a property, so i can hook my code on the 
right place??

Excuse me for writing a book, but i wanted to keep it clear.

[]'s

- -- 
Sidnei da Silva
X3ng Web Technology
sidnei@x3ng.com.br
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