def process_participant(self, row, player_id, rank_id):
place = int(row[self.slices[self.indices['place']]])
rating = row[self.slices[self.indices['rating']]].strip()
rating = float(rating) if rating else None
participant_data = {
'player_id': player_id,
'tournament_id': self.tournament_id,
'rank_id': rank_id,
'place': place,
'rating_start': rating,
'rating_end': None,
}
participant_id = Participant.execute_insert([participant_data])[0]
self.participants[place] = participant_id
self.rounds.append((participant_id, [row[self.slices[i]].strip() for i in
range(self.indices['first_round'], self.indices['last_round'] + 1)]))
return participant_id
