public function updateRevision($columnPrefix, DatabaseBase $dbw, $continue = null)
{
$rows = $dbw->select('flow_revision', array('rev_id', 'rev_type'), array('rev_id > ' . $dbw->addQuotes($continue), "{$columnPrefix}_id > 0", "{$columnPrefix}_ip IS NOT NULL"), __METHOD__, array('LIMIT' => $this->mBatchSize, 'ORDER BY' => 'rev_id'));
$ids = $objs = array();
foreach ($rows as $row) {
$id = UUID::create($row->rev_id);
$type = self::$types[$row->rev_type];
$om = $this->storage->getStorage($type);
$obj = $om->get($id);
if ($obj) {
$om->merge($obj);
$ids[] = $row->rev_id;
$objs[] = $obj;
} else {
$this->error(__METHOD__ . ": Failed loading {$type}: " . $id->getAlphadecimal());
}
}
if (!$ids) {
return null;
}
$dbw->update('flow_revision', array("{$columnPrefix}_ip" => null), array('rev_id' => $ids), __METHOD__);
foreach ($objs as $obj) {
$this->storage->cachePurge($obj);
}
$this->completeCount += count($ids);
return end($ids);
}
/**
* @param Iterator $it
* @param integer $oldUserId
* @param callable $callback Receives a single row, returns domain object or null
* @param string $userTupleGetter Method to call on domain object that will return
* a UserTuple instance.
*/
protected function purgeTable(Iterator $it, $oldUserId, $callback, $userTupleGetter)
{
foreach ($it as $batch) {
foreach ($batch as $pkRow) {
$obj = call_user_func($callback, $pkRow);
if (!$obj) {
continue;
}
// This is funny looking because the loaded objects may have come from
// the db with new user ids, or the cache with old user ids.
// We need to tweak this object to look like the old user ids and then
// purge caches so they get the old user id cache keys.
$tuple = call_user_func(array($obj, $userTupleGetter));
if (!$tuple) {
continue;
}
$tuple->id = $oldUserId;
$om = $this->storage->getStorage(get_class($obj));
$om->clear();
$om->merge($obj);
$om->cachePurge($obj);
}
$this->storage->clear();
}
}
/**
* @param Title|false $title
* @param UUID $workflowId
* @return Workflow
* @throws InvalidInputException
*/
protected function loadWorkflowById($title, $workflowId)
{
/** @var Workflow $workflow */
$workflow = $this->storage->getStorage('Workflow')->get($workflowId);
if (!$workflow) {
throw new UnknownWorkflowIdException('Invalid workflow requested by id', 'invalid-input');
}
if ($title !== false && $this->pageMoveInProgress === false && !$workflow->matchesTitle($title)) {
throw new InvalidInputException('Flow workflow is for different page', 'invalid-input');
}
return $workflow;
}
