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<?php
// This file is part of the Zoom plugin for 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/>.
/**
* Task: update_meetings
*
* @package mod_zoom
* @copyright 2018 UC Regents
* @author Rohan Khajuria
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace mod_zoom\task;
defined('MOODLE_INTERNAL') || die();
require_once($CFG->libdir . '/modinfolib.php');
require_once($CFG->dirroot . '/mod/zoom/lib.php');
require_once($CFG->dirroot . '/mod/zoom/locallib.php');
use core\task\scheduled_task;
use mod_zoom\not_found_exception;
use moodle_exception;
use moodle_url;
/**
* Scheduled task to sychronize meeting data.
*/
class update_meetings extends scheduled_task {
/**
* Returns name of task.
*
* @return string
*/
public function get_name() {
return get_string('updatemeetings', 'mod_zoom');
}
/**
* Updates meetings that are not expired.
*
* @return boolean
*/
public function execute() {
global $DB;
try {
$service = zoom_webservice();
} catch (moodle_exception $exception) {
mtrace('Skipping task - ', $exception->getMessage());
return;
}
// Show trace message.
mtrace('Starting to process existing Zoom meeting activities ...');
// Check all meetings, in case they were deleted/changed on Zoom.
$zoomstoupdate = $DB->get_records('zoom', ['exists_on_zoom' => ZOOM_MEETING_EXISTS]);
$courseidstoupdate = [];
$calendarfields = ['intro', 'introformat', 'start_time', 'duration', 'recurring'];
foreach ($zoomstoupdate as $zoom) {
// Show trace message.
mtrace('Processing next Zoom meeting activity ...');
mtrace(' Zoom meeting ID: ' . $zoom->meeting_id);
mtrace(' Zoom meeting title: ' . $zoom->name);
$zoomactivityurl = new moodle_url('/mod/zoom/view.php', ['n' => $zoom->id]);
mtrace(' Zoom meeting activity URL: ' . $zoomactivityurl->out());
mtrace(' Moodle course ID: ' . $zoom->course);
$gotinfo = false;
try {
$response = $service->get_meeting_webinar_info($zoom->meeting_id, $zoom->webinar);
$gotinfo = true;
} catch (not_found_exception $error) {
$zoom->exists_on_zoom = ZOOM_MEETING_EXPIRED;
$DB->update_record('zoom', $zoom);
// Show trace message.
mtrace(' => Marked Zoom meeting activity for Zoom meeting ID ' . $zoom->meeting_id .
' as not existing anymore on Zoom');
} catch (moodle_exception $error) {
// Show trace message.
mtrace(' !! Error updating Zoom meeting activity for Zoom meeting ID ' . $zoom->meeting_id . ': ' . $error);
}
if ($gotinfo) {
$changed = false;
$newzoom = populate_zoom_from_response($zoom, $response);
// Iterate over all Zoom meeting fields.
foreach ((array) $zoom as $field => $value) {
// The start_url has a parameter that always changes, so it doesn't really count as a change.
// Similarly, the timemodified parameter does not count as change if nothing else has changed.
if ($field === 'start_url' || $field === 'timemodified') {
continue;
}
// For doing a better comparison and for easing mtrace() output, convert booleans from the Zoom response
// to strings like they are stored in the Moodle database for the existing activity.
$newfieldvalue = $newzoom->$field;
if (is_bool($newfieldvalue)) {
$newfieldvalue = $newfieldvalue ? '1' : '0';
}
// If the field value has changed.
if ($newfieldvalue != $value) {
// Show trace message.
mtrace(' => Field "' . $field . '" has changed from "' . $value . '" to "' . $newfieldvalue . '"');
// Remember this meeting as changed.
$changed = true;
}
}
if ($changed) {
$newzoom->timemodified = time();
$DB->update_record('zoom', $newzoom);
// Show trace message.
mtrace(' => Updated Zoom meeting activity for Zoom meeting ID ' . $zoom->meeting_id);
// If the topic/title was changed, mark this course for cache clearing.
if ($zoom->name != $newzoom->name) {
$courseidstoupdate[] = $newzoom->course;
}
} else {
// Show trace message.
mtrace(' => Skipped Zoom meeting activity for Zoom meeting ID ' . $zoom->meeting_id . ' as unchanged');
}
// Update the calendar events.
if (!$zoom->recurring && $changed) {
// Check if calendar needs updating.
foreach ($calendarfields as $field) {
if ($zoom->$field != $newzoom->$field) {
zoom_calendar_item_update($newzoom);
// Show trace message.
mtrace(' => Updated calendar item for Zoom meeting ID ' . $zoom->meeting_id);
break;
}
}
} else if ($zoom->recurring) {
// Show trace message.
mtrace(' => Updated calendar items for recurring Zoom meeting ID ' . $zoom->meeting_id);
zoom_calendar_item_update($newzoom);
}
// Update tracking fields for meeting.
mtrace(' => Updated tracking fields for Zoom meeting ID ' . $zoom->meeting_id);
zoom_sync_meeting_tracking_fields($zoom->id, $response->tracking_fields ?? []);
}
}
// Show trace message.
mtrace('Finished to process existing Zoom meetings');
// Show trace message.
mtrace('Starting to rebuild course caches ...');
// Clear caches for meetings whose topic/title changed (and rebuild as needed).
foreach ($courseidstoupdate as $courseid) {
rebuild_course_cache($courseid, true);
}
// Show trace message.
mtrace('Finished to rebuild course caches');
return true;
}
}