/**
* Upgrades legacy workshops using rubric grading strategy
*/
function workshopform_rubric_upgrade_legacy_rubric() {
global $CFG, $DB, $OUTPUT;
require_once($CFG->dirroot . '/mod/workshop/db/upgradelib.php');
// get the list of all legacy workshops using this grading strategy
if ($legacyworkshops = $DB->get_records('workshop_old', array('gradingstrategy' => 4), 'course,id', 'id')) {
echo $OUTPUT->notification('Copying rubric assessment form elements', 'notifysuccess');
$legacyworkshops = array_keys($legacyworkshops);
// get the list of all form elements and rubrics
list($workshopids, $params) = $DB->get_in_or_equal($legacyworkshops, SQL_PARAMS_NAMED);
$sql = "SELECT e.id AS eid, e.workshopid AS workshopid, e.elementno AS esort, e.description AS edesc, e.weight AS eweight,
r.id AS rid, r.rubricno AS rgrade, r.description AS rdesc
FROM {workshop_elements_old} e
LEFT JOIN {workshop_rubrics_old} r ON (r.elementno = e.elementno AND r.workshopid = e.workshopid)
WHERE e.workshopid $workshopids
AND e.newid IS NULL
AND r.newid IS NULL
ORDER BY e.workshopid, e.elementno, r.rubricno";
$rs = $DB->get_recordset_sql($sql, $params);
$newdimensionids = array(); // (int)workshopid => (int)elementno => (int)dimensionid
$newlevelids = array(); // (int)oldrubricid => (int)newlevelid
$prevelement = null;
foreach ($rs as $old) {
// create rubric criterion and the configuration if necessary
if (!isset($newdimensionids[$old->workshopid]) or !isset($newdimensionids[$old->workshopid][$old->esort])) {
if (!$DB->record_exists('workshopform_rubric', array('workshopid' => $old->workshopid, 'sort' => $old->esort))) {
$newdimension = new stdclass();
$newdimension->workshopid = $old->workshopid;
$newdimension->sort = $old->esort;
$newdimension->description = $old->edesc;
$newdimension->descriptionformat = FORMAT_HTML;
$newdimensionids[$old->workshopid][$old->esort] = $DB->insert_record('workshopform_rubric', $newdimension);
} else {
$newdimensionids[$old->workshopid][$old->esort] = $DB->get_field('workshopform_rubric', 'id',
array('workshopid' => $old->workshopid, 'sort' => $old->esort));
}
if (!$DB->record_exists('workshopform_rubric_config', array('workshopid' => $old->workshopid))) {
$newconfig = new stdclass();
$newconfig->workshopid = $old->workshopid;
$newconfig->layout = 'grid';
$DB->insert_record('workshopform_rubric_config', $newconfig);
}
}
// process the information about the criterion levels
if (trim($old->rdesc)) {
$new = workshopform_rubric_upgrade_rubric_level($old, $newdimensionids[$old->workshopid][$old->esort]);
$newid = $DB->insert_record('workshopform_rubric_levels', $new);
$DB->set_field('workshop_rubrics_old', 'newplugin', 'rubric_levels', array('id' => $old->rid));
$DB->set_field('workshop_rubrics_old', 'newid', $newid, array('id' => $old->rid));
}
// mark the whole element as processed if the last level was processed
if ($old->rgrade == 4) {
$DB->set_field('workshop_elements_old', 'newplugin', 'rubric', array('id' => $old->eid));
$DB->set_field('workshop_elements_old', 'newid', $newdimensionids[$old->workshopid][$old->esort], array('id' => $old->eid));
}
}
$rs->close();
// reload the mappings - this must be reloaded so that we can run this during recovery
$newelementids = workshop_upgrade_element_id_mappings('rubric');
// load the legacy element weights and multiply the new max grade by it
echo $OUTPUT->notification('Recalculating rubric assessment form element weights', 'notifysuccess');
$oldweights = $DB->get_records('workshop_elements_old', array('newplugin' => 'rubric'), '', 'id,workshopid,elementno,weight');
$newweights = array();
foreach ($oldweights as $eid => $element) {
$newweights[$newelementids[$element->workshopid][$element->elementno]->newid] = workshopform_rubric_upgrade_weight($element->weight);
}
unset($oldweights);
unset($element);
// migrate all grades for these elements (it est the values that reviewers put into forms)
echo $OUTPUT->notification('Copying rubric assessment form grades', 'notifysuccess');
$sql = "SELECT *
FROM {workshop_grades_old}
WHERE workshopid $workshopids
AND newid IS NULL";
$rs = $DB->get_recordset_sql($sql, $params);
$newassessmentids = workshop_upgrade_assessment_id_mappings();
foreach ($rs as $old) {
if (!isset($newelementids[$old->workshopid]) or !isset($newelementids[$old->workshopid][$old->elementno])) {
// orphaned grade - the assessment form element has been removed after the grade was recorded
continue;
}
$new = new stdclass();
$new->assessmentid = $newassessmentids[$old->assessmentid];
$new->strategy = 'rubric';
$new->dimensionid = $newelementids[$old->workshopid][$old->elementno]->newid;
$new->grade = $old->grade * $newweights[$new->dimensionid];
$new->peercomment = $old->feedback;
$new->peercommentformat = FORMAT_HTML;
$newid = $DB->insert_record('workshop_grades', $new);
$DB->set_field('workshop_grades_old', 'newplugin', 'rubric', array('id' => $old->id));
$DB->set_field('workshop_grades_old', 'newid', $newid, array('id' => $old->id));
}
$rs->close();
}
}
/**
* Processes gathered elements coming from the legacy rubric strategy
*/
protected function convert_legacy_rubric_elements()
{
$this->write_xml('workshopform_rubric_config', array('layout' => 'grid'));
foreach ($this->elements as $element) {
$this->xmlwriter->begin_tag('workshopform_rubric_dimension', array('id' => $element['id']));
$this->xmlwriter->full_tag('sort', $element['elementno']);
$this->xmlwriter->full_tag('description', $element['description']);
$this->xmlwriter->full_tag('descriptionformat', FORMAT_HTML);
foreach ($this->rubrics[$element['id']] as $rubric) {
$fakerecord = new stdClass();
$fakerecord->rgrade = $rubric['rubricno'];
$fakerecord->eweight = $element['weight'];
$fakerecord->rdesc = $rubric['description'];
$level = (array) workshopform_rubric_upgrade_rubric_level($fakerecord, $element['id']);
unset($level['dimensionid']);
$level['id'] = $this->converter->get_nextid();
$this->write_xml('workshopform_rubric_level', $level, array('/workshopform_rubric_level/id'));
}
$this->xmlwriter->end_tag('workshopform_rubric_dimension');
}
}
