}
$cat_id = isset($_GET['cat_id']) ? (int) $_GET['cat_id'] : null;
$action = isset($_GET['action']) && $_GET['action'] ? $_GET['action'] : null;
$filterOfficialCode = isset($_POST['filter']) ? Security::remove_XSS($_POST['filter']) : null;
$filterOfficialCodeGet = isset($_GET['filter']) ? Security::remove_XSS($_GET['filter']) : null;
switch ($action) {
case 'export_all_certificates':
$userList = array();
if (!empty($filterOfficialCodeGet)) {
$userList = UserManager::getUsersByOfficialCode($filterOfficialCodeGet);
}
Category::exportAllCertificates($cat_id, $userList);
break;
case 'generate_all_certificates':
$user_list = CourseManager::get_user_list_from_course_code(api_get_course_id(), api_get_session_id());
Category::generateCertificatesInUserList($cat_id, $user_list);
break;
case 'delete_all_certificates':
Category::deleteAllCertificates($cat_id);
break;
}
$course_code = api_get_course_id();
$interbreadcrumb[] = array('url' => Security::remove_XSS($_SESSION['gradebook_dest']) . '?', 'name' => get_lang('Gradebook'));
$interbreadcrumb[] = array('url' => '#', 'name' => get_lang('GradebookListOfStudentsCertificates'));
$this_section = SECTION_COURSES;
Display::display_header('');
if (isset($_GET['action']) && $_GET['action'] == 'delete') {
$check = Security::check_token('get');
if ($check) {
$certificate = new Certificate($_GET['certificate_id']);
$result = $certificate->delete(true);
