/**
* Get all tref ids for a template id
*
* @param int $a_tid template node id (node id in template tree)
* @return array of ids
*/
static function _lookupTrefIdsForTemplateId($a_tid)
{
include_once "./Services/Skill/classes/class.ilSkillTree.php";
$tree = new ilSkillTree();
$top_template_id = $tree->getTopParentNodeId($a_tid);
return self::_lookupTrefIdsForTopTemplateId($top_template_id);
}
