65 lines
2.0 KiB
PHP
65 lines
2.0 KiB
PHP
<?php
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// This file is part of the Studyplan plugin for Moodle
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <https://www.gnu.org/licenses/>.
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/**
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* Background task to refresh the list of associaded teachers with studyplans
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* @package local_treestudyplan
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* @copyright 2023 P.M. Kuipers
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* @license https://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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namespace local_treestudyplan\task;
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defined('MOODLE_INTERNAL') || die();
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require_once($CFG->dirroot.'/course/externallib.php');
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use local_treestudyplan\teachingfinder;
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/**
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* Background task to refresh the list of associaded teachers with studyplans
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*/
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class refreshteacherlist extends \core\task\scheduled_task {
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/**
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* Maximum time a result is valid before refreshing
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* @var int
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*/
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const CACHE_TIME = 4 * 60 * 60; // 2 hours.
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/**
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* Return the task's name as shown in admin screens.
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*
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* @return string
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*/
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public function get_name() {
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return get_string('refreshteacherlist_name', 'local_treestudyplan');
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}
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/**
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* Execute the task.
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*/
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public function execute() {
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\mtrace("Ververs lijst met leraren");
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$teacherids = teachingfinder::list_teacher_ids();
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foreach ($teacherids as $tid) {
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$utime = teachingfinder::get_update_time($tid);
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if (time() - $utime > self::CACHE_TIME) {
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\mtrace("Teacher {$tid} is due for a refresh of the list");
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teachingfinder::update_teaching_cache($tid);
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}
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}
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}
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}
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