$users = GradebookUtils::get_all_users($alleval, $alllinks);
    } else {
        $users = null;
    }
}
$offset = isset($_GET['offset']) ? $_GET['offset'] : '0';
$addparams = array('selectcat' => $cat[0]->get_id());
if (isset($_GET['search'])) {
    $addparams['search'] = $keyword;
}
// Main course category
$mainCourseCategory = Category::load(null, null, api_get_course_id(), null, null, api_get_session_id());
$flatviewtable = new FlatViewTable($cat[0], $users, $alleval, $alllinks, true, $offset, $addparams, $mainCourseCategory[0]);
$flatviewtable->setAutoFill(false);
$parameters = array('selectcat' => intval($_GET['selectcat']));
$flatviewtable->set_additional_parameters($parameters);
$params = array();
if (isset($_GET['export_pdf']) && $_GET['export_pdf'] == 'category') {
    $params['only_total_category'] = true;
    $params['join_firstname_lastname'] = true;
    $params['show_official_code'] = true;
    $params['export_pdf'] = true;
    if ($cat[0]->is_locked() == true || api_is_platform_admin()) {
        Display::set_header(null, false, false);
        GradebookUtils::export_pdf_flatview($flatviewtable, $cat, $users, $alleval, $alllinks, $params, $mainCourseCategory[0]);
    }
}
if (isset($_GET['exportpdf'])) {
    $interbreadcrumb[] = array('url' => api_get_self() . '?selectcat=' . Security::remove_XSS($_GET['selectcat']), 'name' => get_lang('FlatView'));
    $export_pdf_form = new DataForm(DataForm::TYPE_EXPORT_PDF, 'export_pdf_form', null, api_get_self() . '?exportpdf=&offset=' . intval($_GET['offset']) . '&selectcat=' . intval($_GET['selectcat']) . '&' . api_get_cidreq(), '_blank', '');
    if ($export_pdf_form->validate()) {