# -*- coding: utf-8
# Copyright 2007 by Vahur Rebas

from AccessControl import ClassSecurityInfo
from Globals import InitializeClass
from AccessControl import getSecurityManager
from OFS.SimpleItem import SimpleItem
from OFS.PropertyManager import PropertyManager
from Products.CMFCore.utils import UniqueObject
from Products.CMFCore.utils import getToolByName



class CachingTool(PropertyManager, UniqueObject, SimpleItem):

    id = 'caching_tool'
    meta_type = 'CachingTool'
    security = ClassSecurityInfo()
    toolicon = 'skins/plone_images/event_icon.gif'
    plone_tool = 1


    def _getGroups(self):
        if hasattr(self, '_v_groupcache'):
            return self._v_groupcache
        gt = getToolByName(self, 'portal_groups')
        grlist = gt.listGroups()
        return grlist

    def _getGroupMembers(self, group):
        #if hasattr(self, '_v_grcache'):
        #    if self._v_grcache.has_key(str(group)):
        #        return self._v_grcache[str(group)]
        #else:
        #    self._v_grcache = {}
        if hasattr(group, 'getGroupMembers'):
            memberslist = group.getGroupMembers()
            #self._v_grcache[str(group)] = memberslist
            return memberslist
        return []

InitializeClass(CachingTool)