/**
* Get blog's category ordering value in case of root categories, parent Chapter subcat ordering otherwise
*
* @return string parent subcat ordering
*/
function get_parent_subcat_ordering()
{
if (empty($this->parent_ID)) {
// Return the default blog setting
$this->load_Blog();
return $this->Blog->get_setting('category_ordering');
}
$this->get_parent_Chapter();
return $this->parent_Chapter->get_subcat_ordering();
}