/**
* Лист дисциплин, по которым есть вопросы
*
* @static
* @return CArrayList
*/
public static function getDisciplines()
{
if (is_null(self::$_disciplines)) {
self::$_disciplines = new CArrayList();
$q = new CQuery();
$q->select("distinct(discipline_id)")->from(TABLE_SEB_QUESTIONS);
foreach ($q->execute()->getItems() as $ar) {
$disc = CTaxonomyManager::getCacheDisciplines()->getItem($ar["discipline_id"]);
if (!is_null($disc)) {
self::$_disciplines->add($disc->getId(), $disc);
}
}
}
return self::$_disciplines;
}
