def get_query_string(self):
        """Build the query string."""
        query_string = parse_qs(self.request.META['QUERY_STRING'])
        if self.order_by_key in query_string:
            del query_string[self.order_by_key]
        if self.sort_key in query_string:
            del query_string[self.sort_key]
        return urlencode(query_string, doseq=True)
dataset/ETHPy150Open ofa/connect/open_connect/connect_core/utils/mixins.py/SortableListMixin.get_query_string/original