Currently, an extension writer can define effective groups by catching the UserEffectiveGroups hook fired in User->getEffectiveGroups(). The user can also use this hook to add a user to implicit groups other then the standard '*', 'user', 'autoconfirmed', and 'emailconfirmed' groups. However, any implicit groups defined still show up in the user rights management interface because the function User->getAllGroups() hard codes the implicit groups.

I would like a hook or global variable to allow my extension to define new implicit groups.

Version: 1.11.x
Severity: enhancement
URL: http://svn.wikimedia.org/viewvc/mediawiki/trunk/phase3/includes/User.php?view=markup