/**
* Get article guid statically
*
* used by get_parent_guid_uncached_static
*
* @param int $parent_id id of topic to get the guid for
*/
private static function _get_parent_guid_uncached_static_article($parent_id)
{
if (empty($parent_id)) {
return null;
}
$mc_parent = midcom_db_article::new_collector('id', $parent_id);
if (!$mc_parent->execute()) {
// Error
return null;
}
$mc_parent_keys = $mc_parent->list_keys();
$parent_guid = key($mc_parent_keys);
if ($parent_guid === false) {
// Error
return null;
}
return $parent_guid;
}
