/**
* Get a list of subitems of a repository resource, that implement
* the export. Includes also information on last export file.
*/
static function _getValidExportSubItems($a_ref_id)
{
global $tree;
$valid_items = array();
$sub_items = $tree->getSubTree($tree->getNodeData($a_ref_id));
foreach ($sub_items as $sub_item) {
if (in_array($sub_item["type"], self::$export_implementer)) {
$valid_items[] = array("type" => $sub_item["type"], "title" => $sub_item["title"], "ref_id" => $sub_item["child"], "obj_id" => $sub_item["obj_id"], "timestamp" => ilExport::_getLastExportFileDate($sub_item["obj_id"], "xml", $sub_item["type"]));
}
}
return $valid_items;
}
