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<?php
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// This file is part of Moodle - http://moodle.org/
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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 <http://www.gnu.org/licenses/>.
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/**
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* A scheduled task.
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*
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* @package core
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* @copyright 2013 onwards Martin Dougiamas http://dougiamas.com
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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namespace core\task;
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/**
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* Simple task to run the grade cron.
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*/
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class grade_cron_task extends scheduled_task {
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/**
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* Get a descriptive name for this task (shown to admins).
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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('taskgradecron', 'admin');
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}
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/**
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* Do the job.
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* Throw exceptions on errors (the job will be retried).
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*/
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public function execute() {
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global $CFG, $DB;
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require_once($CFG->libdir . '/gradelib.php');
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$now = time();
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$sql = "SELECT i.*
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FROM {grade_items} i
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WHERE i.locked = 0
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AND i.locktime > 0
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AND i.locktime < ?
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AND EXISTS (SELECT 'x'
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FROM {grade_items} c
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WHERE c.itemtype='course'
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AND c.needsupdate=0
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AND c.courseid=i.courseid)";
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// Go through all courses that have proper final grades and lock them if needed.
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$rs = $DB->get_recordset_sql($sql, array($now));
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foreach ($rs as $item) {
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$gradeitem = new \grade_item($item, false);
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$gradeitem->locked = $now;
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$gradeitem->update('locktime');
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}
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$rs->close();
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$gradeinst = new \grade_grade();
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$fields = 'g.' . implode(',g.', $gradeinst->required_fields);
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$sql = "SELECT $fields
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FROM {grade_grades} g, {grade_items} i
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WHERE g.locked = 0
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AND g.locktime > 0
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AND g.locktime < ?
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AND g.itemid = i.id
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AND EXISTS (SELECT 'x'
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FROM {grade_items} c
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WHERE c.itemtype = 'course'
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AND c.needsupdate = 0
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AND c.courseid = i.courseid)";
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// Go through all courses that have proper final grades and lock them if needed.
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$rs = $DB->get_recordset_sql($sql, array($now));
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foreach ($rs as $grade) {
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$gradegrade = new \grade_grade($grade, false);
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$gradegrade->locked = $now;
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$gradegrade->update('locktime');
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}
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$rs->close();
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}
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}
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