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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/>.
/**
* Calendar related functions
*
* @package mod_attendance
* @copyright 2016 Vyacheslav Strelkov
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
require_once(dirname(__FILE__).'/../../../calendar/lib.php');
/**
* Create single calendar event bases on session data.
*
* @param stdClass $session initial sessions to take data from
* @return bool result of calendar event creation
*/
function attendance_create_calendar_event(&$session) {
// We don't want to create multiple calendar events for 1 session.
if ($session->caleventid) {
return $session->caleventid;
}
global $DB;
$attendance = $DB->get_record('attendance', array('id' => $session->attendanceid));
$caleventdata = new stdClass();
$caleventdata->name = $attendance->name;
$caleventdata->courseid = $attendance->course;
$caleventdata->groupid = $session->groupid;
$caleventdata->instance = $session->attendanceid;
$caleventdata->timestart = $session->sessdate;
$caleventdata->timeduration = $session->duration;
$caleventdata->eventtype = 'attendance';
$caleventdata->timemodified = time();
$caleventdata->modulename = 'attendance';
$calevent = new stdClass();
if ($calevent = calendar_event::create($caleventdata, false)) {
$session->caleventid = $calevent->id;
$DB->set_field('attendance_sessions', 'caleventid', $session->caleventid, array('id' => $session->id));
return true;
} else {
return false;
}
}
/**
* Create multiple calendar events based on sessions data.
*
* @param array $sessionsids array of sessions ids
*/
function attendance_create_calendar_events($sessionsids) {
global $DB;
$sessions = $DB->get_recordset_list('attendance_sessions', 'id', $sessionsids);
foreach ($sessions as $session) {
attendance_create_calendar_event($session);
if ($session->caleventid) {
$DB->update_record('attendance_sessions', $session);
}
}
}
/**
* Update calendar event duration and date
*
* @param int $caleventid calendar event id
* @param int $timeduration duration of the event
* @param int $timestart start time of the event
* @return bool result of updating
*/
function attendance_update_calendar_event($caleventid, $timeduration, $timestart) {
$caleventdata = new stdClass();
$caleventdata->timeduration = $timeduration;
$caleventdata->timestart = $timestart;
$caleventdata->timemodified = time();
$calendarevent = calendar_event::load($caleventid);
if ($calendarevent) {
return $calendarevent->update($caleventdata) ? true : false;
} else {
return false;
}
}
/**
* Delete calendar events for sessions
*
* @param array $sessionsids array of sessions ids
* @return bool result of updating
*/
function attendance_delete_calendar_events($sessionsids) {
global $DB;
$caleventsids = attendance_existing_calendar_events_ids($sessionsids);
if ($caleventsids) {
$DB->delete_records_list('event', 'id', $caleventsids);
}
$sessions = $DB->get_recordset_list('attendance_sessions', 'id', $sessionsids);
foreach ($sessions as $session) {
$session->caleventid = 0;
$DB->update_record('attendance_sessions', $session);
}
}
/**
* Check if calendar events are created for given sessions
*
* @param array $sessionsids of sessions ids
* @return array | bool array of existing calendar events or false if none found
*/
function attendance_existing_calendar_events_ids($sessionsids) {
global $DB;
$caleventsids = array_keys($DB->get_records_list('attendance_sessions', 'id', $sessionsids, '', 'caleventid'));
$existingcaleventsids = array_filter($caleventsids);
if (! empty($existingcaleventsids)) {
return $existingcaleventsids;
} else {
return false;
}
}