code: def check_for_territories(query):
      if not query or not current_app.config.get('ACTIVATE_TERRITORIES'):
          return []
      dbqs = db.Q()
      query = query.lower()
      is_digit = query.isdigit()
      query_length = len(query)
      for level in current_app.config.get('HANDLED_LEVELS'):
          if level == 'country':
              continue
          q = db.Q(level=level)
          if (query_length == 2 and level == 'fr:departement' and
                  (is_digit or query in ('2a', '2b'))):
              q &= db.Q(code=query)
          elif query_length == 3 and level == 'fr:departement' and is_digit:
              q &= db.Q(code=query)
          elif query_length == 5 and level == 'fr:commune' and (
                  is_digit or query.startswith('2a') or query.startswith('2b')):
              q &= db.Q(code=query) | db.Q(keys__postal__contains=query)
          elif query_length >= 4:
              q &= db.Q(name__istartswith=query) | db.Q(name__iexact=query)
          else:
              continue
          dbqs |= q
      if dbqs.empty:
          return []
      return GeoZone.objects(dbqs).order_by('-population', '-area')