public function switchTree()
{
$set = new ilSetting('common');
$type = $set->get('main_tree_impl', 'ns') == 'ns' ? 'ns' : 'mp';
if ($type == 'ns' and $_POST['tree_impl_type'] == 'mp') {
// To mp
include_once './Services/Tree/classes/class.ilMaterializedPathTree.php';
ilMaterializedPathTree::createFromParentReleation();
$set->set('main_tree_impl', 'mp');
} elseif ($type == 'mp' and $_POST['tree_impl_type'] == 'ns') {
include_once './Services/Tree/classes/class.ilTree.php';
$GLOBALS['ilSetting'] = $set;
$tree = new ilTree(1);
$tree->renumber(1);
$set->set('main_tree_impl', 'ns');
}
ilUtil::sendInfo($this->lng->txt("tree_implementation_switched"), true);
$this->displayTools();
}
