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440 lines
20 KiB
440 lines
20 KiB
<?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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* This file contains the upgrade code to upgrade from mod_assignment to mod_assign
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*
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* @package mod_assign
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* @copyright 2012 NetSpot {@link http://www.netspot.com.au}
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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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defined('MOODLE_INTERNAL') || die();
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require_once($CFG->dirroot.'/mod/assign/locallib.php');
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require_once($CFG->libdir.'/accesslib.php');
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require_once($CFG->dirroot.'/course/lib.php');
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/*
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* The maximum amount of time to spend upgrading a single assignment.
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* This is intentionally generous (5 mins) as the effect of a timeout
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* for a legitimate upgrade would be quite harsh (roll back code will not run)
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*/
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define('ASSIGN_MAX_UPGRADE_TIME_SECS', 300);
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/**
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* Class to manage upgrades from mod_assignment to mod_assign
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*
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* @package mod_assign
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* @copyright 2012 NetSpot {@link http://www.netspot.com.au}
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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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class assign_upgrade_manager {
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/**
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* This function converts all of the base settings for an instance of
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* the old assignment to the new format. Then it calls each of the plugins
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* to see if they can help upgrade this assignment.
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* @param int $oldassignmentid (don't rely on the old assignment type even being installed)
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* @param string $log This string gets appended to during the conversion process
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* @return bool true or false
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*/
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public function upgrade_assignment($oldassignmentid, & $log) {
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global $DB, $CFG, $USER;
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// Steps to upgrade an assignment.
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core_php_time_limit::raise(ASSIGN_MAX_UPGRADE_TIME_SECS);
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// Get the module details.
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$oldmodule = $DB->get_record('modules', array('name'=>'assignment'), '*', MUST_EXIST);
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$params = array('module'=>$oldmodule->id, 'instance'=>$oldassignmentid);
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$oldcoursemodule = $DB->get_record('course_modules',
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$params,
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'*',
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MUST_EXIST);
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$oldcontext = context_module::instance($oldcoursemodule->id);
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// We used to check for admin capability, but since Moodle 2.7 this is called
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// during restore of a mod_assignment module.
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// Also note that we do not check for any mod_assignment capabilities, because they can
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// be removed so that users don't add new instances of the broken old thing.
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if (!has_capability('mod/assign:addinstance', $oldcontext)) {
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$log = get_string('couldnotcreatenewassignmentinstance', 'mod_assign');
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return false;
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}
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// First insert an assign instance to get the id.
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$oldassignment = $DB->get_record('assignment', array('id'=>$oldassignmentid), '*', MUST_EXIST);
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$oldversion = get_config('assignment_' . $oldassignment->assignmenttype, 'version');
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$data = new stdClass();
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$data->course = $oldassignment->course;
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$data->name = $oldassignment->name;
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$data->intro = $oldassignment->intro;
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$data->introformat = $oldassignment->introformat;
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$data->alwaysshowdescription = 1;
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$data->sendnotifications = $oldassignment->emailteachers;
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$data->sendlatenotifications = $oldassignment->emailteachers;
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$data->duedate = $oldassignment->timedue;
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$data->allowsubmissionsfromdate = $oldassignment->timeavailable;
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$data->grade = $oldassignment->grade;
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$data->submissiondrafts = $oldassignment->resubmit;
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$data->requiresubmissionstatement = 0;
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$data->markingworkflow = 0;
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$data->markingallocation = 0;
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$data->cutoffdate = 0;
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$data->gradingduedate = 0;
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// New way to specify no late submissions.
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if ($oldassignment->preventlate) {
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$data->cutoffdate = $data->duedate;
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}
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$data->teamsubmission = 0;
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$data->requireallteammemberssubmit = 0;
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$data->teamsubmissiongroupingid = 0;
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$data->blindmarking = 0;
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$data->attemptreopenmethod = 'none';
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$data->maxattempts = ASSIGN_UNLIMITED_ATTEMPTS;
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$newassignment = new assign(null, null, null);
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if (!$newassignment->add_instance($data, false)) {
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$log = get_string('couldnotcreatenewassignmentinstance', 'mod_assign');
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return false;
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}
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// Now create a new coursemodule from the old one.
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$newmodule = $DB->get_record('modules', array('name'=>'assign'), '*', MUST_EXIST);
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$newcoursemodule = $this->duplicate_course_module($oldcoursemodule,
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$newmodule->id,
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$newassignment->get_instance()->id);
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if (!$newcoursemodule) {
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$log = get_string('couldnotcreatenewcoursemodule', 'mod_assign');
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return false;
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}
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// Convert the base database tables (assignment, submission, grade).
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// These are used to store information in case a rollback is required.
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$gradingarea = null;
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$gradingdefinitions = null;
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$gradeidmap = array();
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$completiondone = false;
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$gradesdone = false;
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// From this point we want to rollback on failure.
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$rollback = false;
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try {
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$newassignment->set_context(context_module::instance($newcoursemodule->id));
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// The course module has now been created - time to update the core tables.
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// Copy intro files.
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$newassignment->copy_area_files_for_upgrade($oldcontext->id, 'mod_assignment', 'intro', 0,
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$newassignment->get_context()->id, 'mod_assign', 'intro', 0);
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// Get the plugins to do their bit.
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foreach ($newassignment->get_submission_plugins() as $plugin) {
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if ($plugin->can_upgrade($oldassignment->assignmenttype, $oldversion)) {
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$plugin->enable();
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if (!$plugin->upgrade_settings($oldcontext, $oldassignment, $log)) {
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$rollback = true;
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}
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} else {
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$plugin->disable();
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}
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}
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foreach ($newassignment->get_feedback_plugins() as $plugin) {
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if ($plugin->can_upgrade($oldassignment->assignmenttype, $oldversion)) {
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$plugin->enable();
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if (!$plugin->upgrade_settings($oldcontext, $oldassignment, $log)) {
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$rollback = true;
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}
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} else {
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$plugin->disable();
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}
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}
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// See if there is advanced grading upgrades required.
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$gradingarea = $DB->get_record('grading_areas',
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array('contextid'=>$oldcontext->id, 'areaname'=>'submission'),
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'*',
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IGNORE_MISSING);
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if ($gradingarea) {
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$params = array('id'=>$gradingarea->id,
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'contextid'=>$newassignment->get_context()->id,
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'component'=>'mod_assign',
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'areaname'=>'submissions');
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$DB->update_record('grading_areas', $params);
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$gradingdefinitions = $DB->get_records('grading_definitions',
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array('areaid'=>$gradingarea->id));
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}
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// Upgrade availability data.
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\core_availability\info::update_dependency_id_across_course(
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$newcoursemodule->course, 'course_modules', $oldcoursemodule->id, $newcoursemodule->id);
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// Upgrade completion data.
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$DB->set_field('course_modules_completion',
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'coursemoduleid',
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$newcoursemodule->id,
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array('coursemoduleid'=>$oldcoursemodule->id));
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$allcriteria = $DB->get_records('course_completion_criteria',
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array('moduleinstance'=>$oldcoursemodule->id));
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foreach ($allcriteria as $criteria) {
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$criteria->module = 'assign';
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$criteria->moduleinstance = $newcoursemodule->id;
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$DB->update_record('course_completion_criteria', $criteria);
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}
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$completiondone = true;
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// Migrate log entries so we don't lose them.
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$logparams = array('cmid' => $oldcoursemodule->id, 'course' => $oldcoursemodule->course);
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$DB->set_field('log', 'module', 'assign', $logparams);
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$DB->set_field('log', 'cmid', $newcoursemodule->id, $logparams);
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// Copy all the submission data (and get plugins to do their bit).
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$oldsubmissions = $DB->get_records('assignment_submissions',
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array('assignment'=>$oldassignmentid));
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foreach ($oldsubmissions as $oldsubmission) {
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$submission = new stdClass();
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$submission->assignment = $newassignment->get_instance()->id;
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$submission->userid = $oldsubmission->userid;
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$submission->timecreated = $oldsubmission->timecreated;
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$submission->timemodified = $oldsubmission->timemodified;
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$submission->status = ASSIGN_SUBMISSION_STATUS_SUBMITTED;
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// Because in mod_assignment there could only be one submission per student, it is always the latest.
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$submission->latest = 1;
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$submission->id = $DB->insert_record('assign_submission', $submission);
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if (!$submission->id) {
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$log .= get_string('couldnotinsertsubmission', 'mod_assign', $submission->userid);
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$rollback = true;
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}
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foreach ($newassignment->get_submission_plugins() as $plugin) {
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if ($plugin->can_upgrade($oldassignment->assignmenttype, $oldversion)) {
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if (!$plugin->upgrade($oldcontext,
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$oldassignment,
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$oldsubmission,
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$submission,
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$log)) {
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$rollback = true;
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}
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}
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}
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if ($oldsubmission->timemarked) {
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// Submission has been graded - create a grade record.
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$grade = new stdClass();
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$grade->assignment = $newassignment->get_instance()->id;
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$grade->userid = $oldsubmission->userid;
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$grade->grader = $oldsubmission->teacher;
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$grade->timemodified = $oldsubmission->timemarked;
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$grade->timecreated = $oldsubmission->timecreated;
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$grade->grade = $oldsubmission->grade;
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if ($oldsubmission->mailed) {
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// The mailed flag goes in the flags table.
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$flags = new stdClass();
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$flags->userid = $oldsubmission->userid;
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$flags->assignment = $newassignment->get_instance()->id;
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$flags->mailed = 1;
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$DB->insert_record('assign_user_flags', $flags);
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}
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$grade->id = $DB->insert_record('assign_grades', $grade);
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if (!$grade->id) {
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$log .= get_string('couldnotinsertgrade', 'mod_assign', $grade->userid);
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$rollback = true;
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}
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// Copy any grading instances.
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if ($gradingarea) {
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$gradeidmap[$grade->id] = $oldsubmission->id;
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foreach ($gradingdefinitions as $definition) {
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$params = array('definitionid'=>$definition->id,
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'itemid'=>$oldsubmission->id);
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$DB->set_field('grading_instances', 'itemid', $grade->id, $params);
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}
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}
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foreach ($newassignment->get_feedback_plugins() as $plugin) {
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if ($plugin->can_upgrade($oldassignment->assignmenttype, $oldversion)) {
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if (!$plugin->upgrade($oldcontext,
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$oldassignment,
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$oldsubmission,
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$grade,
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$log)) {
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$rollback = true;
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}
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}
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}
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}
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}
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$newassignment->update_calendar($newcoursemodule->id);
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// Reassociate grade_items from the old assignment instance to the new assign instance.
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// This includes outcome linked grade_items.
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$params = array('assign', $newassignment->get_instance()->id, 'assignment', $oldassignment->id);
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$sql = 'UPDATE {grade_items} SET itemmodule = ?, iteminstance = ? WHERE itemmodule = ? AND iteminstance = ?';
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$DB->execute($sql, $params);
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// Create a mapping record to map urls from the old to the new assignment.
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$mapping = new stdClass();
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$mapping->oldcmid = $oldcoursemodule->id;
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$mapping->oldinstance = $oldassignment->id;
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$mapping->newcmid = $newcoursemodule->id;
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$mapping->newinstance = $newassignment->get_instance()->id;
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$mapping->timecreated = time();
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$DB->insert_record('assignment_upgrade', $mapping);
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$gradesdone = true;
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} catch (Exception $exception) {
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$rollback = true;
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$log .= get_string('conversionexception', 'mod_assign', $exception->getMessage());
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}
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if ($rollback) {
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// Roll back the grades changes.
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if ($gradesdone) {
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// Reassociate grade_items from the new assign instance to the old assignment instance.
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$params = array('assignment', $oldassignment->id, 'assign', $newassignment->get_instance()->id);
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$sql = 'UPDATE {grade_items} SET itemmodule = ?, iteminstance = ? WHERE itemmodule = ? AND iteminstance = ?';
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$DB->execute($sql, $params);
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}
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// Roll back the completion changes.
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if ($completiondone) {
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$DB->set_field('course_modules_completion',
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'coursemoduleid',
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$oldcoursemodule->id,
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array('coursemoduleid'=>$newcoursemodule->id));
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$allcriteria = $DB->get_records('course_completion_criteria',
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array('moduleinstance'=>$newcoursemodule->id));
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foreach ($allcriteria as $criteria) {
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$criteria->module = 'assignment';
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$criteria->moduleinstance = $oldcoursemodule->id;
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$DB->update_record('course_completion_criteria', $criteria);
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}
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}
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// Roll back the log changes.
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$logparams = array('cmid' => $newcoursemodule->id, 'course' => $newcoursemodule->course);
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$DB->set_field('log', 'module', 'assignment', $logparams);
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$DB->set_field('log', 'cmid', $oldcoursemodule->id, $logparams);
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// Roll back the advanced grading update.
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if ($gradingarea) {
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foreach ($gradeidmap as $newgradeid => $oldsubmissionid) {
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foreach ($gradingdefinitions as $definition) {
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$DB->set_field('grading_instances',
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'itemid',
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$oldsubmissionid,
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array('definitionid'=>$definition->id, 'itemid'=>$newgradeid));
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}
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}
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$params = array('id'=>$gradingarea->id,
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'contextid'=>$oldcontext->id,
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'component'=>'mod_assignment',
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'areaname'=>'submission');
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$DB->update_record('grading_areas', $params);
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}
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$newassignment->delete_instance();
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return false;
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}
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// Delete the old assignment (use object delete).
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$cm = get_coursemodule_from_id('', $oldcoursemodule->id, $oldcoursemodule->course);
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if ($cm) {
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course_delete_module($cm->id);
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}
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rebuild_course_cache($oldcoursemodule->course);
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return true;
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}
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/**
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* Create a duplicate course module record so we can create the upgraded
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* assign module alongside the old assignment module.
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*
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* @param stdClass $cm The old course module record
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* @param int $moduleid The id of the new assign module
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* @param int $newinstanceid The id of the new instance of the assign module
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* @return mixed stdClass|bool The new course module record or FALSE
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*/
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private function duplicate_course_module(stdClass $cm, $moduleid, $newinstanceid) {
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global $DB, $CFG;
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$newcm = new stdClass();
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$newcm->course = $cm->course;
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$newcm->module = $moduleid;
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$newcm->instance = $newinstanceid;
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$newcm->visible = $cm->visible;
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$newcm->section = $cm->section;
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$newcm->score = $cm->score;
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$newcm->indent = $cm->indent;
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$newcm->groupmode = $cm->groupmode;
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$newcm->groupingid = $cm->groupingid;
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$newcm->completion = $cm->completion;
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$newcm->completiongradeitemnumber = $cm->completiongradeitemnumber;
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$newcm->completionview = $cm->completionview;
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$newcm->completionexpected = $cm->completionexpected;
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if (!empty($CFG->enableavailability)) {
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$newcm->availability = $cm->availability;
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}
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$newcm->showdescription = $cm->showdescription;
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$newcmid = add_course_module($newcm);
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$newcm = get_coursemodule_from_id('', $newcmid, $cm->course);
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if (!$newcm) {
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return false;
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}
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$section = $DB->get_record("course_sections", array("id"=>$newcm->section));
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if (!$section) {
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return false;
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}
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$newcm->section = course_add_cm_to_section($newcm->course, $newcm->id, $section->section, $cm->id);
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// Make sure visibility is set correctly (in particular in calendar).
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// Note: Allow them to set it even without moodle/course:activityvisibility.
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set_coursemodule_visible($newcm->id, $newcm->visible);
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return $newcm;
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}
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}
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/**
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* Determines if the assignment as any null grades that were rescaled.
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*
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* Null grades are stored as -1 but should never be rescaled.
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*
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* @return int[] Array of the ids of all the assignments with rescaled null grades.
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*/
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function get_assignments_with_rescaled_null_grades() {
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global $DB;
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$query = 'SELECT id, assignment FROM {assign_grades}
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WHERE grade < 0 AND grade <> -1';
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$assignments = array_values($DB->get_records_sql($query));
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$getassignmentid = function ($assignment) {
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return $assignment->assignment;
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};
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$assignments = array_map($getassignmentid, $assignments);
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return $assignments;
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}
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