/**
* Converts <ELEMENT> into <workshopform_numerrors_dimension> and stores it for later writing
*
* @return array to be written to workshop.xml
*/
public function process_legacy_element($data, $raw) {
$workshop = $this->parenthandler->get_current_workshop();
$mapping = array();
$mapping['id'] = $data['id'];
$mapping['nonegative'] = $data['elementno'];
if ($workshop['grade'] == 0 or $data['maxscore'] == 0) {
$mapping['grade'] = 0;
} else {
$mapping['grade'] = grade_floatval($data['maxscore'] / $workshop['grade'] * 100);
}
$this->mappings[] = $mapping;
$converted = null;
if (trim($data['description']) and $data['description'] <> '@@ GRADE_MAPPING_ELEMENT @@') {
// prepare a fake record and re-use the upgrade logic
$fakerecord = (object)$data;
$converted = (array)workshopform_numerrors_upgrade_element($fakerecord, 12345678);
unset($converted['workshopid']);
$converted['id'] = $data['id'];
$this->dimensions[] = $converted;
}
return $converted;
}
/**
* Check if there are some legacy workshop 1.x data to be migrated and upgrade them
*
* This must be called after workshop core migration has finished so that
* all assessments are already upgraded and tables are correctly renamed.
*/
function workshopform_numerrors_upgrade_legacy() {
global $CFG, $DB, $OUTPUT;
require_once($CFG->dirroot . '/mod/workshop/db/upgradelib.php');
if (!workshopform_numerrors_upgrade_legacy_needed()) {
return;
}
// get the list of all legacy workshops using this grading strategy
if ($legacyworkshops = $DB->get_records('workshop_old', array('gradingstrategy' => 2), 'course,id', 'id')) {
echo $OUTPUT->notification('Copying assessment forms elements and grade mappings', 'notifysuccess');
$legacyworkshops = array_keys($legacyworkshops);
// get some needed info about the workshops
$workshopinfos = $DB->get_records_list('workshop_old', 'id', $legacyworkshops, 'id', 'id,grade');
// get the list of all form elements
list($workshopids, $params) = $DB->get_in_or_equal($legacyworkshops, SQL_PARAMS_NAMED);
$sql = "SELECT *
FROM {workshop_elements_old}
WHERE workshopid $workshopids
AND newid IS NULL";
$rs = $DB->get_recordset_sql($sql, $params);
foreach ($rs as $old) {
// process the information about mapping
$newmapping = new stdclass();
$newmapping->workshopid = $old->workshopid;
$newmapping->nonegative = $old->elementno;
$newmapping->grade = $old->maxscore;
if ($old->maxscore > 0) {
$newmapping->grade = grade_floatval($old->maxscore / $workshopinfos[$old->workshopid]->grade * 100);
} else {
$newmapping->grade = 0;
}
$DB->delete_records('workshopform_numerrors_map',
array('workshopid' => $newmapping->workshopid, 'nonegative' => $newmapping->nonegative));
$DB->insert_record('workshopform_numerrors_map', $newmapping);
// process the information about the element itself
if (trim($old->description) and $old->description <> '@@ GRADE_MAPPING_ELEMENT @@') {
$new = workshopform_numerrors_upgrade_element($old, $old->workshopid);
$newid = $DB->insert_record('workshopform_numerrors', $new);
} else {
$newid = 0;
}
$DB->set_field('workshop_elements_old', 'newplugin', 'numerrors', array('id' => $old->id));
$DB->set_field('workshop_elements_old', 'newid', $newid, array('id' => $old->id));
}
$rs->close();
// now we need to reload the legacy ids. Although we have them in $newelements after the first run, we must
// refetch them from DB so that this function can be called during recovery
$newelementids = workshop_upgrade_element_id_mappings('numerrors');
// migrate all grades for these elements (it est the values that reviewers put into forms)
echo $OUTPUT->notification('Copying 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 $old) {
if (!isset($newassessmentids[$old->assessmentid])) {
// orphaned grade - the assessment was removed but the grade remained
continue;
}
if (!isset($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;
}
$newelementinfo = $newelementids[$old->workshopid][$old->elementno];
if ($newelementinfo->newid == 0 or $old->feedback == '@@ GRADE_ADJUSTMENT @@') {
// this is not a real grade - it was used just for mapping purposes
$DB->set_field('workshop_grades_old', 'newplugin', 'numerrors_map', array('id' => $old->id));
$DB->set_field('workshop_grades_old', 'newid', 0, array('id' => $old->id));
continue;
}
$new = workshopform_numerrors_upgrade_grade($old, $newassessmentids[$old->assessmentid],
$newelementids[$old->workshopid][$old->elementno]);
$newid = $DB->insert_record('workshop_grades', $new);
$DB->set_field('workshop_grades_old', 'newplugin', 'numerrors', array('id' => $old->id));
$DB->set_field('workshop_grades_old', 'newid', $newid, array('id' => $old->id));
}
$rs->close();
}
}
