# -*- coding: iso-8859-1 -*-

 """

     MoinMoin - config group lazy backend.

     The config group backend allows one to define groups in a

     configuration file.

     NOTE that this is proof-of-concept implementation. LDAP backend

     should be based on this concept.

     @copyright: 2009 MoinMoin:DmitrijsMilajevs

     @license: GPL, see COPYING for details

 """

 from MoinMoin.datastruct.backends import LazyGroup, LazyGroupsBackend

 class ConfigLazyGroup(LazyGroup):

     pass

 class ConfigLazyGroups(LazyGroupsBackend):

     def __init__(self, request, groups):

         super(ConfigLazyGroups, self).__init__(request)

         self._groups = groups

     def __contains__(self, group_name):

         return group_name in self._groups

     def __iter__(self):

         return self._groups.iterkeys()

     def __getitem__(self, group_name):

         return ConfigLazyGroup(self.request, group_name, self)

     def _iter_group_members(self, group_name):

         if group_name in self:

             return self._groups[group_name].__iter__()

     def _group_has_member(self, group_name, member):

         return group_name in self and member in self._groups[group_name]