docs: def subscribe_user_to_discussion(recID, uid):
      """
      Subscribe a user to a discussion, so the she receives by emails
      all new new comments for this record.
  
      :param recID: record ID corresponding to the discussion we want to
                    subscribe the user
      :param uid: user id
      """
      query = """INSERT INTO "cmtSUBSCRIPTION" (id_bibrec, id_user, creation_time)
                      VALUES (%s, %s, %s)"""
      params = (recID, uid, convert_datestruct_to_datetext(time.localtime()))
      try:
          run_sql(query, params)
      except:
          return 0
      return 1