On Thursday 12 January 2006 14:11, Gary Poster wrote:
> Problem:
> We want to perform actions when a user is added to a group, and
> possibly when a user is removed from a group.  There is no hook point
> for this currently in the zope.app.authentication code.
>
> Solution:
> Fire events in the zope.app.authentication code when principals are
> added and removed from groups.
>
> ----8<----8<----
> from zope import interface
>
> def IPrincipalAddedToGroup(interface.Inteface):
>      group = interface.Attribute('the group to which the principal
> was added')
>      principal = interface.Attribute('the principal added')
>
> def IPrincipalRemovedFromGroup(interface.Inteface):
>      group = interface.Attribute('the group from which the principal
> was removed')
>      principal = interface.Attribute('the principal removed')
>
> ----8<----8<----
>
> In terms of implementation, it looks like
> zope.app.authentication.groupfolder.GroupFolder._addPrincipalToGroup
> and
> zope.app.authentication.groupfolder.GroupFolder._removePrincipalFromGrou
> p are the methods that would fire the events.

For what it is still worth, +1.

Regards,
Stephan
-- 
Stephan Richter
CBU Physics & Chemistry (B.S.) / Tufts Physics (Ph.D. student)
Web2k - Web Software Design, Development and Training
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