exit;
case att_sessions_page_params::ACTION_DELETE_SELECTED:
$confirm = optional_param('confirm', NULL, PARAM_INT);
if (isset($confirm)) {
$sessionsids = required_param('sessionsids', PARAM_ALPHANUMEXT);
$sessionsids = explode('_', $sessionsids);
$att->delete_sessions($sessionsids);
att_update_all_users_grades($att->id, $att->course, $att->context);
redirect($att->url_manage(), get_string('sessiondeleted', 'attforblock'));
}
$fromform = data_submitted();
// nothing selected
if (!isset($fromform->sessid)) {
print_error('nosessionsselected', 'attforblock', $att->url_manage());
}
$sessionsinfo = $att->get_sessions_info($fromform->sessid);
$message = get_string('deletecheckfull', '', get_string('session', 'attforblock'));
$message .= html_writer::empty_tag('br');
foreach ($sessionsinfo as $sessinfo) {
$message .= html_writer::empty_tag('br');
$message .= userdate($sessinfo->sessdate, get_string('strftimedmyhm', 'attforblock'));
$message .= html_writer::empty_tag('br');
$message .= $sessinfo->description;
}
$sessionsids = implode('_', $fromform->sessid);
$params = array('action' => $att->pageparams->action, 'sessionsids' => $sessionsids, 'confirm' => 1);
echo $OUTPUT->header();
echo $OUTPUT->heading(get_string('attendanceforthecourse', 'attforblock') . ' :: ' . $course->fullname);
echo $OUTPUT->confirm($message, $att->url_sessions($params), $att->url_manage());
echo $OUTPUT->footer();
exit;
