[Zope-dev] __ac_permissions__ question

[Chris Withers]

If I define the following in an Article class (which subclasses
Posting):

__ac_permissions__ = Posting.__ac_permissions__ + (
('View', ['prev_item','next_item','showSummary','desc_items'],
('Anonymous', 'Manager')),
)

and Posting.__ac_permissions__ also defines a 'View' permission, which
methods are covered?

(the ones from Posting, the ones from Article or (hopefully) the union
of the two sets of methods)

cheers,

Chris

PS: If it's nto the union, how can I achieve this effect?