docs: def index(advice):
      '''Index/Reindex a CADA advice'''
      topics = []
      for topic in advice.topics:
          topics.append(topic)
          parts = topic.split('/')
          if len(parts) > 1:
              topics.append(parts[0])
  
      try:
          es.index(index=es.index_name, doc_type=DOCTYPE, id=advice.id, body={
              'id': advice.id,
              'administration': advice.administration,
              'type': advice.type,
              'session': advice.session.strftime('%Y-%m-%d'),
              'subject': advice.subject,
              'topics': topics,
              'tags': advice.tags,
              'meanings': advice.meanings,
              'part': advice.part,
              'content': advice.content,
          })
      except Exception:
          log.exception('Unable to index advice %s', advice.id)