##parameters=key=None 
# $Id: get_faculties_voc.py 313 2006-07-15 15:29:56Z joachim $
"""
Return the faculties as an vocabulary

"""
if key is None:
    res = context.portal_catalog.search({'meta_type': "Faculty"})    
    return [(d.getId,d.Title,) for d in res]
res = context.portal_catalog.search({'meta_type': "Faculty", 'id': key})
if res:
    return [-1].Title
return "unknown Faculty %s" % key