'Process data posted from the attendee details form.'

def _process_registration_details(self, details):

    registrations = super(WebsiteEvent, self)._process_registration_details(details)
    for registration in registrations:
        answer_ids = []
        for (key, value) in registration.iteritems():
            if key.startswith('answer_ids-'):
                answer_ids.append([4, int(value)])
        registration['answer_ids'] = answer_ids
    return registrations
