public function setHasRespondents($userId)
    {
        if (! $this->_get('gor_has_respondents')) {
            $values['gor_has_respondents'] = 1;
            $values['gor_changed']         = new \MUtil_Db_Expr_CurrentTimestamp();
            $values['gor_changed_by']      = $userId;

            $where = $this->db->quoteInto('gor_id_organization = ?', $this->_id);

            $this->db->update('gems__organizations', $values, $where);

            // Invalidate cache / change value
            $this->_set('gor_has_respondents', 1);
        }

        return $this;
    }