Get data from a result page
            :param url: url to query
            :param payload: payload to pass
            :return: a dictlist with data

def _parse_result_page(self, url, payload, only_region=False):
        """ Get data from a result page
            :param url: url to query
            :param payload: payload to pass
            :return: a dictlist with data
        """
        data = []
        try:

            if only_region:
                html = self.scraper._get_html(url)
            else:
                html = self.scraper._post_html(url, payload=payload)

        except RequestException500:

            self.scraper.log.warning(u"Status code 500 on {} with {}".format(url, payload))
            return None


        current_selection = self._get_current_selection(html)

        table = Datatable(html)
        data = []
        for row in table.data:
            region_or_unit_id, region_or_unit_label = row["region_or_unit"]
            if region_or_unit_label in self.regions:
                row["region"] = region_or_unit_label
                row["unit"] = None
            else:
                row["region"] = None
                row["unit"] = region_or_unit_label

            value = row["value"]

            row.pop("value", None)
            row.pop("region_or_unit", None)

            for dim in self.dimensions:
                if dim.id not in row:
                    row[dim.id] = current_selection[dim.id][1] # gets label



            data.append(Result(value, row))
        return data