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upgradelib.php
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upgradelib.php
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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/>.
/**
* Functions used by some stages in workshop db/upgrade.php
*
* @package mod
* @subpackage workshop
* @copyright 2009 David Mudrak <david.mudrak@gmail.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
/**
* Prepares the inital workshop 2.0 core tables
*/
function workshop_upgrade_prepare_20_tables() {
global $CFG, $DB;
$dbman = $DB->get_manager();
if (!$dbman->table_exists('workshop')) {
$table = new xmldb_table('workshop');
$table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
$table->add_field('course', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
$table->add_field('name', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
$table->add_field('intro', XMLDB_TYPE_TEXT, 'big', null, null, null, null);
$table->add_field('introformat', XMLDB_TYPE_INTEGER, '3', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
$table->add_field('instructauthors', XMLDB_TYPE_TEXT, 'big', null, null, null, null);
$table->add_field('instructauthorsformat', XMLDB_TYPE_INTEGER, '3', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
$table->add_field('instructreviewers', XMLDB_TYPE_TEXT, 'big', null, null, null, null);
$table->add_field('instructreviewersformat', XMLDB_TYPE_INTEGER, '3', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
$table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
$table->add_field('phase', XMLDB_TYPE_INTEGER, '3', XMLDB_UNSIGNED, null, null, '0');
$table->add_field('useexamples', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, null, null, '0');
$table->add_field('usepeerassessment', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, null, null, '0');
$table->add_field('useselfassessment', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, null, null, '0');
$table->add_field('grade', XMLDB_TYPE_NUMBER, '10, 5', XMLDB_UNSIGNED, null, null, '80');
$table->add_field('gradinggrade', XMLDB_TYPE_NUMBER, '10, 5', XMLDB_UNSIGNED, null, null, '20');
$table->add_field('strategy', XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null);
$table->add_field('gradedecimals', XMLDB_TYPE_INTEGER, '3', XMLDB_UNSIGNED, null, null, '0');
$table->add_field('nattachments', XMLDB_TYPE_INTEGER, '3', XMLDB_UNSIGNED, null, null, '0');
$table->add_field('latesubmissions', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, null, null, '0');
$table->add_field('maxbytes', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, '100000');
$table->add_field('examplesmode', XMLDB_TYPE_INTEGER, '3', XMLDB_UNSIGNED, null, null, '0');
$table->add_field('submissionstart', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, '0');
$table->add_field('submissionend', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, '0');
$table->add_field('assessmentstart', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, '0');
$table->add_field('assessmentend', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, '0');
$table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
$table->add_key('course_fk', XMLDB_KEY_FOREIGN, array('course'), 'course', array('id'));
$dbman->create_table($table);
}
if (!$dbman->table_exists('workshop_submissions')) {
$table = new xmldb_table('workshop_submissions');
$table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
$table->add_field('workshopid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
$table->add_field('example', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, null, null, '0');
$table->add_field('authorid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
$table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
$table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
$table->add_field('title', XMLDB_TYPE_CHAR, '255', null, XMLDB_NOTNULL, null, null);
$table->add_field('content', XMLDB_TYPE_TEXT, 'big', null, null, null, null);
$table->add_field('contentformat', XMLDB_TYPE_INTEGER, '3', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
$table->add_field('contenttrust', XMLDB_TYPE_INTEGER, '3', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
$table->add_field('attachment', XMLDB_TYPE_INTEGER, '2', XMLDB_UNSIGNED, null, null, '0');
$table->add_field('grade', XMLDB_TYPE_NUMBER, '10, 5', XMLDB_UNSIGNED, null, null, null);
$table->add_field('gradeover', XMLDB_TYPE_NUMBER, '10, 5', XMLDB_UNSIGNED, null, null, null);
$table->add_field('gradeoverby', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
$table->add_field('feedbackauthor', XMLDB_TYPE_TEXT, 'big', null, null, null, null);
$table->add_field('feedbackauthorformat', XMLDB_TYPE_INTEGER, '3', XMLDB_UNSIGNED, null, null, '0');
$table->add_field('timegraded', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
$table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
$table->add_key('workshop_fk', XMLDB_KEY_FOREIGN, array('workshopid'), 'workshop', array('id'));
$table->add_key('overriddenby_fk', XMLDB_KEY_FOREIGN, array('gradeoverby'), 'user', array('id'));
$table->add_key('author_fk', XMLDB_KEY_FOREIGN, array('authorid'), 'user', array('id'));
$dbman->create_table($table);
}
if (!$dbman->table_exists('workshop_assessments')) {
$table = new xmldb_table('workshop_assessments');
$table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
$table->add_field('submissionid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
$table->add_field('reviewerid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
$table->add_field('weight', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '1');
$table->add_field('timecreated', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, '0');
$table->add_field('timemodified', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, '0');
$table->add_field('grade', XMLDB_TYPE_NUMBER, '10, 5', XMLDB_UNSIGNED, null, null, null);
$table->add_field('gradinggrade', XMLDB_TYPE_NUMBER, '10, 5', XMLDB_UNSIGNED, null, null, null);
$table->add_field('gradinggradeover', XMLDB_TYPE_NUMBER, '10, 5', XMLDB_UNSIGNED, null, null, null);
$table->add_field('gradinggradeoverby', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
$table->add_field('feedbackauthor', XMLDB_TYPE_TEXT, 'big', null, null, null, null);
$table->add_field('feedbackauthorformat', XMLDB_TYPE_INTEGER, '3', XMLDB_UNSIGNED, null, null, '0');
$table->add_field('feedbackreviewer', XMLDB_TYPE_TEXT, 'big', null, null, null, null);
$table->add_field('feedbackreviewerformat', XMLDB_TYPE_INTEGER, '3', XMLDB_UNSIGNED, null, null, '0');
$table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
$table->add_key('submission_fk', XMLDB_KEY_FOREIGN, array('submissionid'), 'workshop_submissions', array('id'));
$table->add_key('overriddenby_fk', XMLDB_KEY_FOREIGN, array('gradinggradeoverby'), 'user', array('id'));
$table->add_key('reviewer_fk', XMLDB_KEY_FOREIGN, array('reviewerid'), 'user', array('id'));
$dbman->create_table($table);
}
if (!$dbman->table_exists('workshop_grades')) {
$table = new xmldb_table('workshop_grades');
$table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
$table->add_field('assessmentid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
$table->add_field('strategy', XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null);
$table->add_field('dimensionid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
$table->add_field('grade', XMLDB_TYPE_NUMBER, '10, 5', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
$table->add_field('peercomment', XMLDB_TYPE_TEXT, 'big', null, null, null, null);
$table->add_field('peercommentformat', XMLDB_TYPE_INTEGER, '3', null, null, null, '0');
$table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
$table->add_key('assessment_fk', XMLDB_KEY_FOREIGN, array('assessmentid'), 'workshop_assessments', array('id'));
$table->add_key('formfield_uk', XMLDB_KEY_UNIQUE, array('assessmentid', 'strategy', 'dimensionid'));
$dbman->create_table($table);
}
if (!$dbman->table_exists('workshop_aggregations')) {
$table = new xmldb_table('workshop_aggregations');
$table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
$table->add_field('workshopid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
$table->add_field('userid', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, null);
$table->add_field('gradinggrade', XMLDB_TYPE_NUMBER, '10, 5', XMLDB_UNSIGNED, null, null, null);
$table->add_field('timegraded', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, null, null, null);
$table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
$table->add_key('workshop_fk', XMLDB_KEY_FOREIGN, array('workshopid'), 'workshop', array('id'));
$table->add_key('user_fk', XMLDB_KEY_FOREIGN, array('userid'), 'user', array('id'));
$table->add_key('workshopuser', XMLDB_KEY_UNIQUE, array('workshopid', 'userid'));
$dbman->create_table($table);
}
}
/**
* Copies the records from workshop_old into workshop table
*
* @return void
*/
function workshop_upgrade_module_instances() {
global $CFG, $DB;
upgrade_set_timeout();
$moduleid = $DB->get_field('modules', 'id', array('name' => 'workshop'), MUST_EXIST);
$rs = $DB->get_recordset_select('workshop_old', 'newid IS NULL', null, 'id');
foreach ($rs as $old) {
$new = workshop_upgrade_transform_instance($old);
$new->id = $old->id;
$DB->import_record('workshop', $new);
$DB->set_field('workshop_old', 'newplugin', 'workshop', array('id' => $old->id));
$DB->set_field('workshop_old', 'newid', $new->id, array('id' => $old->id));
}
$rs->close();
$dbman = $DB->get_manager();
$dbman->reset_sequence('workshop');
}
/**
* Given a record containing data from 1.9 workshop table, returns object containing data as should be saved in 2.0 workshop table
*
* @param stdClass $old record from 1.9 workshop table
* @return stdClass
*/
function workshop_upgrade_transform_instance(stdClass $old) {
global $CFG;
require_once(dirname(dirname(__FILE__)) . '/locallib.php');
$new = new stdClass();
$new->course = $old->course;
$new->name = $old->name;
$new->intro = $old->description;
$new->introformat = $old->format;
$new->nattachments = $old->nattachments;
$new->maxbytes = $old->maxbytes;
$new->grade = $old->grade;
$new->gradinggrade = $old->gradinggrade;
$new->phase = workshop::PHASE_CLOSED;
$new->timemodified = time();
if ($old->ntassessments > 0) {
$new->useexamples = 1;
} else {
$new->useexamples = 0;
}
$new->usepeerassessment = 1;
$new->useselfassessment = $old->includeself;
switch ($old->gradingstrategy) {
case 0: // 'notgraded' - renamed
$new->strategy = 'comments';
break;
case 1: // 'accumulative'
$new->strategy = 'accumulative';
break;
case 2: // 'errorbanded' - renamed
$new->strategy = 'numerrors';
break;
case 3: // 'criterion' - will be migrated into 'rubric'
$new->strategy = 'rubric';
break;
case 4: // 'rubric'
$new->strategy = 'rubric';
break;
}
if ($old->submissionstart < $old->submissionend) {
$new->submissionstart = $old->submissionstart;
$new->submissionend = $old->submissionend;
}
if ($old->assessmentstart < $old->assessmentend) {
$new->assessmentstart = $old->assessmentstart;
$new->assessmentend = $old->assessmentend;
}
return $new;
}
/**
* Copies records from workshop_submissions_old into workshop_submissions. Can be called after all workshop module instances
* were correctly migrated and new ids are filled in workshop_old
*
* @return void
*/
function workshop_upgrade_submissions() {
global $CFG, $DB;
upgrade_set_timeout();
// list of teachers in every workshop: array of (int)workshopid => array of (int)userid => notused
$workshopteachers = array();
$rs = $DB->get_recordset_select('workshop_submissions_old', 'newid IS NULL');
foreach ($rs as $old) {
if (!isset($workshopteachers[$old->workshopid])) {
$cm = get_coursemodule_from_instance('workshop', $old->workshopid, 0, false, MUST_EXIST);
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
$workshopteachers[$old->workshopid] = get_users_by_capability($context, 'mod/workshop:manage', 'u.id');
}
$new = workshop_upgrade_transform_submission($old, $old->workshopid, $workshopteachers[$old->workshopid]);
$newid = $DB->insert_record('workshop_submissions', $new, true, true);
$DB->set_field('workshop_submissions_old', 'newplugin', 'submissions', array('id' => $old->id));
$DB->set_field('workshop_submissions_old', 'newid', $newid, array('id' => $old->id));
}
$rs->close();
}
/**
* Given a record from 1.x workshop_submissions_old, returns data for 2.0 workshop_submissions
*
* @param stdClass $old
* @param int $newworkshopid new workshop id
* @param array $legacyteachers $userid => notused the list of legacy workshop teachers for the submission's workshop
* @return stdClass
*/
function workshop_upgrade_transform_submission(stdClass $old, $newworkshopid, array $legacyteachers) {
$new = new stdclass(); // new submission record to be returned
$new->workshopid = $newworkshopid;
if (isset($legacyteachers[$old->userid])) {
// the author of the submission was teacher = had mod/workshop:manage. this is the only way how we can
// recognize the submission should be treated as example submission (ach jo...)
$new->example = 1;
} else {
$new->example = 0;
}
$new->authorid = $old->userid;
$new->timecreated = $old->timecreated;
$new->timemodified = $old->timecreated;
$new->title = $old->title;
$new->content = $old->description;
$new->contentformat = FORMAT_HTML;
$new->contenttrust = 0;
$new->published = 0;
return $new;
}
/**
* Returns the list of new submission instances ids
*
* @return array (int)oldid => (int)newid
*/
function workshop_upgrade_submission_id_mappings() {
global $DB;
$oldrecords = $DB->get_records('workshop_submissions_old', null, 'id', 'id,newid');
$newids = array();
foreach ($oldrecords as $oldid => $oldrecord) {
if ($oldrecord->id and $oldrecord->newid) {
$newids[$oldid] = $oldrecord->newid;
}
}
return $newids;
}
/**
* Returns the list of teacherweight values as were set in legacy workshop instances
*
* @return array (int)oldid => (int)teacherweight
*/
function workshop_upgrade_legacy_teacher_weights() {
global $DB;
$oldrecords = $DB->get_records('workshop_old', null, 'id', 'id,teacherweight');
$weights = array();
foreach ($oldrecords as $oldid => $oldrecord) {
if (is_null($oldrecord->teacherweight)) {
$weights[$oldid] = 1;
} else {
$weights[$oldid] = $oldrecord->teacherweight;
}
}
return $weights;
}
/**
* Copies all assessments from workshop_assessments_old to workshop_assessments. Can be called after all
* submissions were migrated.
*
* @return void
*/
function workshop_upgrade_assessments() {
global $CFG, $DB, $OUTPUT;
upgrade_set_timeout();
$newsubmissionids = workshop_upgrade_submission_id_mappings();
$teacherweights = workshop_upgrade_legacy_teacher_weights();
// list of teachers in every workshop: array of (int)workshopid => array of (int)userid => notused
$workshopteachers = array();
// get the list of ids of the new example submissions
$examplesubmissions = $DB->get_records('workshop_submissions', array('example' => 1), '', 'id');
$rs = $DB->get_recordset_select('workshop_assessments_old', 'newid IS NULL');
foreach ($rs as $old) {
if (!isset($workshopteachers[$old->workshopid])) {
$cm = get_coursemodule_from_instance('workshop', $old->workshopid, 0, false, MUST_EXIST);
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
$workshopteachers[$old->workshopid] = get_users_by_capability($context, 'mod/workshop:manage', 'u.id');
}
$ofexample = isset($examplesubmissions[$newsubmissionids[$old->submissionid]]);
$new = workshop_upgrade_transform_assessment($old, $newsubmissionids[$old->submissionid],
$workshopteachers[$old->workshopid], $teacherweights[$old->workshopid], $ofexample);
$newid = $DB->insert_record('workshop_assessments', $new, true, true);
$DB->set_field('workshop_assessments_old', 'newplugin', 'assessments', array('id' => $old->id));
$DB->set_field('workshop_assessments_old', 'newid', $newid, array('id' => $old->id));
}
$rs->close();
}
/**
* Given a record from workshop_assessments_old, returns record to be stored in workshop_assessment
*
* @param stdClass $old record from workshop_assessments_old,
* @param int $newsubmissionid new submission id
* @param array $legacyteachers (int)userid => notused the list of legacy workshop teachers for the submission's workshop
* @param int $legacyteacherweight weight of teacher's assessment in legacy workshop
* @param bool $ofexample is this the assessment of an example submission?
* @return stdClass
*/
function workshop_upgrade_transform_assessment(stdClass $old, $newsubmissionid, array $legacyteachers, $legacyteacherweight, $ofexample) {
global $CFG;
require_once($CFG->libdir . '/gradelib.php');
$new = new stdclass();
$new->submissionid = $newsubmissionid;
$new->reviewerid = $old->userid;
if ($ofexample) {
// this is the assessment of an example submission
if (isset($legacyteachers[$old->userid])) {
// this is probably the reference assessment of the example submission
$new->weight = 1;
} else {
$new->weight = 0;
}
} else {
if (isset($legacyteachers[$old->userid])) {
$new->weight = $legacyteacherweight;
} else {
$new->weight = 1;
}
}
if ($old->grade < 0) {
// in workshop 1.x, this is just allocated assessment that has not been touched yet, having timecreated one year in the future :-/
$new->timecreated = time();
} else {
$new->grade = grade_floatval($old->grade);
if ($old->teachergraded) {
$new->gradinggradeover = grade_floatval($old->gradinggrade);
} else {
$new->gradinggrade = grade_floatval($old->gradinggrade);
}
$new->feedbackauthor = $old->generalcomment;
$new->feedbackauthorformat = FORMAT_HTML;
$new->feedbackreviewer = $old->teachercomment;
$new->feedbackreviewerformat = FORMAT_HTML;
$new->timecreated = $old->timecreated;
$new->timemodified = $old->timegraded;
}
return $new;
}
/**
* Returns the list of new assessment ids
*
* @return array (int)oldid => (int)newid
*/
function workshop_upgrade_assessment_id_mappings() {
global $DB;
$oldrecords = $DB->get_records('workshop_assessments_old', null, 'id', 'id,newid');
$newids = array();
foreach ($oldrecords as $oldid => $oldrecord) {
if ($oldrecord->id and $oldrecord->newid) {
$newids[$oldid] = $oldrecord->newid;
}
}
return $newids;
}
/**
* Returns the list of new element (dimension) ids
*
* @param string $strategy the name of strategy subplugin that the element was migrated into
* @return array (int)workshopid => array (int)elementno => stdclass ->(int)newid {->(string)type} {->(int)maxscore}
*/
function workshop_upgrade_element_id_mappings($strategy) {
global $DB;
$oldrecords = $DB->get_records('workshop_elements_old', array('newplugin' => $strategy),
'workshopid,elementno', 'id,workshopid,elementno,scale,maxscore,newid');
$newids = array();
foreach ($oldrecords as $old) {
if (!isset($newids[$old->workshopid])) {
$newids[$old->workshopid] = array();
}
$info = new stdclass();
$info->newid = $old->newid;
if ($strategy == 'accumulative') {
if ($old->scale >= 0 and $old->scale <= 6) {
$info->type = 'scale';
} else {
$info->type = 'value';
}
}
if ($strategy == 'rubric_levels') {
$info->maxscore = $old->maxscore;
}
$newids[$old->workshopid][$old->elementno] = $info;
}
return $newids;
}