public function process_items($items, $data)
{
$tree_items = isset($data['flat']) && $data['flat'] === false ? $items : Core_Arrays::create_tree($items, $data['create_tree']);
$out = array();
$flat_out = array();
$options = isset($data['create_tree']) ? $data['create_tree'] : array();
$options['id_name'] = isset($options['id_name']) ? $options['id_name'] : 'id';
$options['title_name'] = isset($options['title_name']) ? $options['title_name'] : 'title';
$options['childs_name'] = isset($options['childs_name']) ? $options['childs_name'] : 'childs';
$options['disabled_name'] = isset($options['disabled_name']) ? $options['disabled_name'] : 'disabled';
$this->tree_generation($out, $flat_out, $tree_items, $options, $data);
$outs = array($out, $flat_out);
return $outs;
}
