PHP Notation::get_id_in_module示例

 private static function calculates_average_notes(Notation $notation)
 {
     try {
         $result = self::$db_querier->select_rows(DB_TABLE_NOTE, array('note'), 'WHERE module_name=:module_name AND id_in_module=:id_in_module', array('module_name' => $notation->get_module_name(), 'id_in_module' => $notation->get_id_in_module()));
         $notes = 0;
         while ($row = $result->fetch()) {
             $notes += $row['note'];
         }
         return round($notes / $result->get_rows_count() / 0.25) * 0.25;
     } catch (RowNotFoundException $e) {
         return 0;
     }
 }