$self->js->jstree->create_node('#tree', $insert_after ? ('#fb-' . $insert_after, 'after') : $new_parent_id ? ('#fb-' . $new_parent_id, 'last') : ('#sections', 'last'), $node);
$self->create_and_insert_node_rec($_, $item->id) for @{ $item->children || [] };
$self->js->jstree->create_node('#tree', $insert_after ? ('#fb-' . $insert_after, 'after') : $new_parent_id ? ('#fb-' . $new_parent_id, 'last') : ('#sections', 'last'), $node);
$self->create_and_insert_node_rec($_, $item->id) for @{ $item->children || [] };