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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Adding attendance sessions
*
* @package mod_attendance
* @copyright 2011 Artem Andreev <andreev.artem@gmail.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once(dirname(__FILE__).'/../../config.php');
require_once(dirname(__FILE__).'/locallib.php');
require_once(dirname(__FILE__).'/add_form.php');
require_once(dirname(__FILE__).'/update_form.php');
require_once(dirname(__FILE__).'/duration_form.php');
$pageparams = new att_sessions_page_params();
$id = required_param('id', PARAM_INT);
$pageparams->action = required_param('action', PARAM_INT);
if (empty($pageparams->action)) {
// The form on manage.php can submit with the "choose" option - this should be fixed in the long term,
// but in the meantime show a useful error and redirect when it occurs.
$url = new moodle_url('/mod/attendance/view.php', array('id' => $id));
redirect($url, get_string('invalidaction', 'mod_attendance'), 2);
}
$cm = get_coursemodule_from_id('attendance', $id, 0, false, MUST_EXIST);
$course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
$att = $DB->get_record('attendance', array('id' => $cm->instance), '*', MUST_EXIST);
require_login($course, true, $cm);
$att = new attendance($att, $cm, $course, $PAGE->context, $pageparams);
$att->perm->require_manage_capability();
$PAGE->set_url($att->url_sessions());
$PAGE->set_title($course->shortname. ": ".$att->name);
$PAGE->set_heading($course->fullname);
$PAGE->set_cacheable(true);
$PAGE->set_button($OUTPUT->update_module_button($cm->id, 'attendance'));
$PAGE->navbar->add($att->name);
$formparams = array('course' => $course, 'cm' => $cm, 'modcontext' => $PAGE->context);
switch ($att->pageparams->action) {
case att_sessions_page_params::ACTION_ADD:
$url = $att->url_sessions(array('action' => att_sessions_page_params::ACTION_ADD));
$mform = new mod_attendance_add_form($url, $formparams);
if ($formdata = $mform->get_data()) {
$sessions = construct_sessions_data_for_add($formdata);
$att->add_sessions($sessions);
redirect($url, get_string('sessionsgenerated', 'attendance'));
}
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;
$mform = new mod_attendance_update_form($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', 'attendance'));
}
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));
if ($att->grade > 0) {
att_update_all_users_grades($att->id, $att->course, $att->context, $cm);
}
redirect($att->url_manage(), get_string('sessiondeleted', 'attendance'));
}
$sessinfo = $att->get_session_info($sessionid);
$message = get_string('deletecheckfull', '', get_string('session', 'attendance'));
$message .= str_repeat(html_writer::empty_tag('br'), 2);
$message .= userdate($sessinfo->sessdate, get_string('strftimedmyhm', 'attendance'));
$message .= html_writer::empty_tag('br');
$message .= $sessinfo->description;
$params = array('action' => $att->pageparams->action, 'sessionid' => $sessionid, 'confirm' => 1, 'sesskey' => sesskey());
echo $OUTPUT->header();
echo $OUTPUT->heading(get_string('attendanceforthecourse', 'attendance').' :: ' .$course->fullname);
echo $OUTPUT->confirm($message, $att->url_sessions($params), $att->url_manage());
echo $OUTPUT->footer();
exit;
case att_sessions_page_params::ACTION_DELETE_SELECTED:
$confirm = optional_param('confirm', null, PARAM_INT);
if (isset($confirm) && confirm_sesskey()) {
$sessionsids = required_param('sessionsids', PARAM_ALPHANUMEXT);
$sessionsids = explode('_', $sessionsids);
$att->delete_sessions($sessionsids);
if ($att->grade > 0) {
att_update_all_users_grades($att->id, $att->course, $att->context, $cm);
}
redirect($att->url_manage(), get_string('sessiondeleted', 'attendance'));
}
$sessid = required_param('sessid', PARAM_SEQUENCE);
$sessionsinfo = $att->get_sessions_info($sessid);
$message = get_string('deletecheckfull', '', get_string('session', 'attendance'));
$message .= html_writer::empty_tag('br');
foreach ($sessionsinfo as $sessinfo) {
$message .= html_writer::empty_tag('br');
$message .= userdate($sessinfo->sessdate, get_string('strftimedmyhm', 'attendance'));
$message .= html_writer::empty_tag('br');
$message .= $sessinfo->description;
}
$sessionsids = implode('_', $sessid);
$params = array('action' => $att->pageparams->action, 'sessionsids' => $sessionsids,
'confirm' => 1, 'sesskey' => sesskey());
echo $OUTPUT->header();
echo $OUTPUT->heading(get_string('attendanceforthecourse', 'attendance').' :: ' .$course->fullname);
echo $OUTPUT->confirm($message, $att->url_sessions($params), $att->url_manage());
echo $OUTPUT->footer();
exit;
case att_sessions_page_params::ACTION_CHANGE_DURATION:
$sessid = optional_param('sessid', '', PARAM_SEQUENCE);
$ids = optional_param('ids', '', PARAM_ALPHANUMEXT);
$slist = isset($sessid) ? implode('_', $sessid) : '';
$url = $att->url_sessions(array('action' => att_sessions_page_params::ACTION_CHANGE_DURATION));
$formparams['ids'] = $slist;
$mform = new mod_attendance_duration_form($url, $formparams);
if ($mform->is_cancelled()) {
redirect($att->url_manage());
}
if ($formdata = $mform->get_data()) {
$sessionsids = explode('_', $ids);
$duration = $formdata->durtime['hours']*HOURSECS + $formdata->durtime['minutes']*MINSECS;
$att->update_sessions_duration($sessionsids, $duration);
redirect($att->url_manage(), get_string('sessionupdated', 'attendance'));
}
if ($slist === '') {
print_error('nosessionsselected', 'attendance', $att->url_manage());
}
break;
}
$output = $PAGE->get_renderer('mod_attendance');
$tabs = new attendance_tabs($att, attendance_tabs::TAB_ADD);
echo $output->header();
echo $output->heading(get_string('attendanceforthecourse', 'attendance').' :: ' .$course->fullname);
echo $output->render($tabs);
$mform->display();
echo $OUTPUT->footer();
function construct_sessions_data_for_add($formdata) {
global $CFG;
$duration = $formdata->durtime['hours']*HOURSECS + $formdata->durtime['minutes']*MINSECS;
$now = time();
$sessions = array();
if (isset($formdata->addmultiply)) {
$startdate = $formdata->sessiondate;
$starttime = $startdate - usergetmidnight($startdate);
$enddate = $formdata->sessionenddate + DAYSECS; // Because enddate in 0:0am.
if ($enddate < $startdate) {
return null;
}
$days = (int)ceil(($enddate - $startdate) / DAYSECS);
// Getting first day of week.
$sdate = $startdate;
$dinfo = usergetdate($sdate);
if ($CFG->calendar_startwday === '0') { // Week start from sunday.
$startweek = $startdate - $dinfo['wday'] * DAYSECS; // Call new variable.
} else {
$wday = $dinfo['wday'] === 0 ? 7 : $dinfo['wday'];
$startweek = $startdate - ($wday-1) * DAYSECS;
}
$wdaydesc = array(0=>'Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat');
while ($sdate < $enddate) {
if ($sdate < $startweek + WEEKSECS) {
$dinfo = usergetdate($sdate);
if (isset($formdata->sdays) && array_key_exists($wdaydesc[$dinfo['wday']], $formdata->sdays)) {
$sess = new stdClass();
$sess->sessdate = usergetmidnight($sdate) + $starttime;
$sess->duration = $duration;
$sess->descriptionitemid = $formdata->sdescription['itemid'];
$sess->description = $formdata->sdescription['text'];
$sess->descriptionformat = $formdata->sdescription['format'];
$sess->timemodified = $now;
if (isset($formdata->studentscanmark)) { // Students will be able to mark their own attendance.
$sess->studentscanmark = 1;
}
fill_groupid($formdata, $sessions, $sess);
}
$sdate += DAYSECS;
} else {
$startweek += WEEKSECS * $formdata->period;
$sdate = $startweek;
}
}
} else {
$sess = new stdClass();
$sess->sessdate = $formdata->sessiondate;
$sess->duration = $duration;
$sess->descriptionitemid = $formdata->sdescription['itemid'];
$sess->description = $formdata->sdescription['text'];
$sess->descriptionformat = $formdata->sdescription['format'];
$sess->timemodified = $now;
if (isset($formdata->studentscanmark)) { // Students will be able to mark their own attendance.
$sess->studentscanmark = 1;
}
fill_groupid($formdata, $sessions, $sess);
}
return $sessions;
}
function fill_groupid($formdata, &$sessions, $sess) {
if ($formdata->sessiontype == attendance::SESSION_COMMON) {
$sess = clone $sess;
$sess->groupid = 0;
$sessions[] = $sess;
} else {
foreach ($formdata->groups as $groupid) {
$sess = clone $sess;
$sess->groupid = $groupid;
$sessions[] = $sess;
}
}
}