CLearnLesson::GetListOfAncestors

static function GetListOfAncestors ($lessonId, $stopAtLessonId = false, $stopBeforeLessonId = false, $arIgnoreEdges = array())
{
	$arAncestors = array();

	$arOPathes = self::GetListOfParentPathes ($lessonId, $stopAtLessonId, $stopBeforeLessonId, $arIgnoreEdges);
	foreach ($arOPathes as $oPath)
		$arAncestors = array_merge($arAncestors, array_map('intval', $oPath->GetPathAsArray()));

	array_unique($arAncestors);

	return ($arAncestors);
}