def mark_listen_folders(context):
"""
Marks all 'lists' folders w/ the IListenContainer interface.
"""
cat = getToolByName(context, 'portal_catalog')
projs = cat.unrestrictedSearchResults(portal_type='OpenProject')
for proj_brain in projs:
proj = proj_brain.getObject()
listfolder = proj._getOb('lists', None)
if (listfolder is not None and
not IListenContainer.providedBy(listfolder)):
alsoProvides(listfolder, IListenContainer)
logger.info('Marked folder with IListenContainer: %s'
% '/'.join(listfolder.getPhysicalPath()))
