public function has_tariffs($parents_id, $column_name1, $comparison1, $value1, $delimiter = '', $column_name2 = '', $comparison2 = '', $value2 = '') { $database = $_SESSION['database']; $employees_roles_listing = ''; if (tep_not_null($parents_id)) { $employees_roles_query = $database->query("select employees_roles_id from " . TABLE_EMPLOYEES_ROLES . " where roles_id in (" . $parents_id . ")"); while ($employees_roles_result = $database->fetch_array($employees_roles_query)) { if (tep_not_null($employees_roles_listing)) { $employees_roles_listing .= ','; } $employees_roles_listing .= '' . $employees_roles_result['employees_roles_id']; } } else { $employees_roles_listing = $this->id; } $tariff = new tariff(); return $tariff->get_tariffs($employees_roles_listing, $column_name1, $comparison1, $value1, $delimiter, $column_name2, $comparison2, $value2); }