def WorkflowStates(content):
wf = IWorkflow(content, None)
if wf is None:
return SimpleVocabulary(())
terms = []
for state in wf.getStates():
term = SimpleTerm(state.id, state.id, state.title)
term.state = state.description
terms.append((state.title, term))
terms.sort()
return SimpleVocabulary([term for _t, term in terms])
