Display::addFlash(Display::return_message(get_lang('Deleted')));
                header('Location: ' . api_get_self() . '?category=' . Security::remove_XSS($category));
                exit;
            }
        } else {
            CourseCategoryManager::deleteNode($categoryId);
            Display::addFlash(Display::return_message(get_lang('Deleted')));
            header('Location: ' . api_get_self() . '?category=' . Security::remove_XSS($category));
            exit;
        }
    } elseif (($action == 'add' || $action == 'edit') && isset($_POST['formSent']) && $_POST['formSent']) {
        if ($action == 'add') {
            $ret = CourseCategoryManager::addNode($_POST['code'], $_POST['name'], $_POST['auth_course_child'], $category);
            Display::addFlash(Display::return_message(get_lang('Created')));
        } else {
            $ret = CourseCategoryManager::editNode($_POST['code'], $_POST['name'], $_POST['auth_course_child'], $categoryId);
            Display::addFlash(Display::return_message(get_lang('Updated')));
        }
        if ($ret) {
            $action = '';
        } else {
            $errorMsg = get_lang('CatCodeAlreadyUsed');
        }
    } elseif ($action == 'moveUp') {
        CourseCategoryManager::moveNodeUp($categoryId, $_GET['tree_pos'], $category);
        header('Location: ' . api_get_self() . '?category=' . Security::remove_XSS($category));
        Display::addFlash(Display::return_message(get_lang('Updated')));
        exit;
    }
}
$tool_name = get_lang('AdminCategories');