I haven't worked with this code closely in a few months, but as I recall
permissions that are acquired are stored as a list, and those that
aren't are stored as a tuple.
if type(self._View_Permission) == type(()):
# done, this permission isn't acquired above this point
Furthermore, I may be missing the point of this thread, but if you are
trying to get the list of all roles assigned to a permission (from a
python product), you could use this:
from AccessControl.PermissionRole import rolesFromPermissionOn
roles = rolesFromPermissionOn('View', ob)
-Randy
> -----Original Message-----
> From: Danny William Adair [mailto:[EMAIL PROTECTED]]
> Sent: Monday, April 09, 2001 7:49 PM
> To: [EMAIL PROTECTED]
> Cc: [EMAIL PROTECTED]
> Subject: Re: [Zope-dev] Objects, Roles and Permissions
>
>
> Thank you very much, Richard! Cool!
>
> Still...
>
> >>> ...
> >>> Feel free to expand the method to other roles
> >>> and the full suite of permissions.
> >>> ...
>
> Other *roles*? Roles are what's coming back, isn't it?
>
> >>> def viewPermissions(self, acquired=0):
> >>> ''' walk up the acquisition path to find a
> _View_Permission
> >>> attribute... possibly _only_ the acquired
> permissions.
> >>> '''
> >>> chain = self.aq_chain
> >>> if acquired:
> >>> chain = chain[1:]
> >>> for self in chain:
> >>> if hasattr(self.aq_base, '_View_Permission'):
> >>> return self._View_Permission
> >>> return ['Manager']
>
> "possibly _only_ the acquired permissions" - oops! Your
> snippet worked fine
> _if_ the view permission was acquired by that object. As soon
> as I turned
> off acquisition for the view permission of the object, it
> would still give
> me the acquired roles (that in fact were'nt acquired). What
> does the "if"
> statement look like that would return the object's own roles
> for the View
> Permission if acquisition was turned off? Naive Danny who
> doesn't know s...
> tried to put
>
> if hasattr(self.aq_base, '_View_Permission'):
> return self._View_Permission
>
> at the beginning of your code, but no effect. :-(
>
> But now I see how to access specific permissions and read
> their content (do
> I? I'll experiment with it), thank you very much! I will put a
> string.replace on top and pass the Permission to examine by string
> parameter, and call that whole stuff "getAllowedRoles".
>
> A "getGrantedPermissions" for examining a role should work
> similarly, right?
>
> def ac_inherited_permissions(self, all=0):
>
> set all to 1 and then... iterate through the list (tuple or
> list? list of
> tuples?) and check every "_current_Permission" if it contains
> the role?
>
> Thx once again,
> Danny
>
> btw: Isn't return['Manager'] at the end of your code obsolete
> (but safe)? Or
> is there anything special going on at the root level
> (isTopLevelPrincipiaApplicationObject)?
>
>
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