chamilo-lms/main/admin/course_category.php

<?php
/* For licensing terms, see /license.txt */
/**
 * 	@package chamilo.admin
 */
$cidReset = true;
require_once '../inc/global.inc.php';
$this_section = SECTION_PLATFORM_ADMIN;

api_protect_admin_script();
$category = isset($_GET['category']) ? $_GET['category'] : null;

$parentInfo = [];
if (!empty($category)) {
    $parentInfo = CourseCategory::getCategory($category);
}
$categoryId = isset($_GET['id']) ? Security::remove_XSS($_GET['id']) : null;

if (!empty($categoryId)) {
    $categoryInfo = CourseCategory::getCategory($categoryId);
}
$action = isset($_GET['action']) ? $_GET['action'] : null;

$errorMsg = '';
if (!empty($action)) {
    if ($action == 'delete') {
        CourseCategory::deleteNode($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 = CourseCategory::addNode(
                $_POST['code'],
                $_POST['name'],
                $_POST['auth_course_child'],
                $category
            );

            Display::addFlash(Display::return_message(get_lang('Created')));
        } else {
            $ret = CourseCategory::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') {
        CourseCategory::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');
$interbreadcrumb[] = array(
    'url' => 'index.php',
    "name" => get_lang('PlatformAdmin'),
);

Display::display_header($tool_name);

if ($action == 'add' || $action == 'edit') {
    echo '<div class="actions">';
    echo Display::url(
        Display::return_icon('folder_up.png', get_lang("Back"), '', ICON_SIZE_MEDIUM),
        api_get_path(WEB_CODE_PATH).'admin/course_category.php?category='.Security::remove_XSS($category)
    );
    echo '</div>';

    $form_title = ($action == 'add') ? get_lang('AddACategory') : get_lang('EditNode');
    if (!empty($category)) {
        $form_title .= ' ' . get_lang('Into') . ' ' . Security::remove_XSS($category);
    }
    $url = api_get_self().'?action='.Security::remove_XSS($action).'&category='.Security::remove_XSS($category).'&id='.Security::remove_XSS($categoryId);
    $form = new FormValidator('course_category', 'post', $url);
    $form->addElement('header', '', $form_title);
    $form->addElement('hidden', 'formSent', 1);

    $form->addElement('text', 'code', get_lang("CategoryCode"));
    $form->addElement('text', 'name', get_lang("CategoryName"));
    $form->addRule('name', get_lang('PleaseEnterCategoryInfo'), 'required');
    $form->addRule('code', get_lang('PleaseEnterCategoryInfo'), 'required');
    $group = array(
        $form->createElement('radio', 'auth_course_child', get_lang("AllowCoursesInCategory"), get_lang('Yes'), 'TRUE'),
        $form->createElement('radio', 'auth_course_child', null, get_lang('No'), 'FALSE')
    );
    $form->addGroup($group, null, get_lang("AllowCoursesInCategory"));

    if (!empty($categoryInfo)) {
        $class = "save";
        $text = get_lang('Save');
        $form->setDefaults($categoryInfo);
        $form->addButtonSave($text);
    } else {
        $class = "add";
        $text = get_lang('AddCategory');
        $form->setDefaults(array('auth_course_child' => 'TRUE'));
        $form->addButtonCreate($text);
    }
    $form->display();

} else {
    // If multiple URLs and not main URL, prevent deletion and inform user
    if ($action == 'delete' && api_get_multiple_access_url() && api_get_current_access_url_id() != 1) {
        Display::display_warning_message(get_lang('CourseCategoriesAreGlobal'));
    }
    echo '<div class="actions">';
    $link = null;
    if (!empty($parentInfo)) {
        $parentCode = $parentInfo['parent_id'];
        echo Display::url(
            Display::return_icon('back.png', get_lang("Back"), '', ICON_SIZE_MEDIUM),
            api_get_path(WEB_CODE_PATH).'admin/course_category.php?category='.$parentCode
        );
    }

    if (empty($parentInfo) || $parentInfo['auth_cat_child'] == 'TRUE') {
        echo Display::url(
            Display::return_icon('new_folder.png', get_lang("AddACategory"), '', ICON_SIZE_MEDIUM),
            api_get_path(WEB_CODE_PATH).'admin/course_category.php?action=add&category='.Security::remove_XSS($category)
        );
    }

    echo '</div>';
    if (!empty($parentInfo)) {
        echo Display::page_subheader($parentInfo['name'].' ('.$parentInfo['code'].')');
    }
    echo CourseCategory::listCategories($category);
}

Display::display_footer();