if ($formdata = $mform->get_data()) {
$sessions = construct_sessions_data_for_add($formdata);
$att->add_sessions($sessions);
redirect($url, get_string('sessionsgenerated', 'attcontrol'));
}
break;
case att_sessions_page_params::ACTION_UPDATE:
$sessionid = required_param('sessionid', PARAM_INT);
$url = $att->url_sessions(array('action' => att_sessions_page_params::ACTION_UPDATE, 'sessionid' => $sessionid));
$formparams['sessionid'] = $sessionid;
$mform = new mod_attcontrol_update_form($url, $formparams);
if ($mform->is_cancelled()) {
redirect($att->url_manage());
}
if ($formdata = $mform->get_data()) {
$att->update_session_from_form_data($formdata, $sessionid);
redirect($att->url_manage(), get_string('sessionupdated', 'attcontrol'));
}
break;
case att_sessions_page_params::ACTION_DELETE:
$sessionid = required_param('sessionid', PARAM_INT);
$confirm = optional_param('confirm', null, PARAM_INT);
if (isset($confirm) && confirm_sesskey()) {
$att->delete_sessions(array($sessionid));
redirect($att->url_manage(), get_string('sessiondeleted', 'attcontrol'));
}
$sessinfo = $att->get_session_info($sessionid);
$message = get_string('deletecheckfull', '', get_string('session', 'attcontrol'));
$message .= str_repeat(html_writer::empty_tag('br'), 2);
$message .= userdate($sessinfo->sessdate, get_string('strftimedmyhm', 'attcontrol'));
$message .= html_writer::empty_tag('br');
