public function getRoundsForExport($trackId = null, $surveyId = null)
    {
        // Read some data from tables, initialize defaults...
        $select = $this->db->select();

        // Fetch all round descriptions
        $select->from('gems__tokens', array('gto_round_description', 'gto_round_description'))
            ->distinct()
            ->where('gto_round_description IS NOT NULL AND gto_round_description != ""')
            ->order(array('gto_round_description'));

        if (!empty($trackId)) {
            $select->where('gto_id_track = ?', (int) $trackId);
        }

        if (!empty($surveyId)) {
            $select->where('gto_id_survey = ?', (int) $surveyId);
        }

        $result = $this->db->fetchPairs($select);

        return $result;
    }