def handle_update_participant(self, req_post):
logging.info("Hit 'update_participant'")
claim_id = req_post['claim']
assert claim_id == self.ref_id, "claim_id {0}, ref_id {1}".format(claim_id, self.ref_id)
session = self.session
claim = session.query(Claim).filter_by(ref_id=claim_id).one()
self.set_claim_form(claim)
participant_id = req_post['participant_choice']
participant = get_participant(session, participant_id)
parts, part_links, _ = get_participants(session, claim_id)
form = ParticipantEdit(req_post)
form.ref_id = participant_id
form = self.finish_participant_form(form, parts)
form.validate()
if form.errors:
active_element = get_head_element(session, participant)
self.choose_element_form(req_post,
active_element,
element_choices(session, participant))
else:
logging.info("participant_choice: {0}".format(participant_id))
participant.type = form.type.data
participant.label = form.label.data
participant.publication_taxon = form.publication_taxon.data
participant.publication_anatomy = form.publication_anatomy.data
participant.publication_substrate = form.publication_substrate.data
participant.publication_text = form.publication_text.data
participant.participation_property = expand_curie(form.participation_property.data)
self.participant_form = form
element_id = req_post['element']
element = get_pelement(session, element_id)
self.set_element_form(element, element_choices(session, participant))
self.update_graph(claim, parts, part_links)
self.set_hidden_fields(claim_id, participant_id, element_id)
