/**
* Compares aggregate's current version with the stored version. If thery are out os sync throws exception
*
* @param EntityDTO $entity
* @return nothing or ConflictingVersion Exception
* @author Francisco Iglesias Gómez
*/
protected function checkVersion(EntityDTO $entity)
{
$newVersion = $entity->getVersion();
$storedVersion = $this->getStoredVersion($entity);
if ($newVersion <= $storedVersion) {
throw new Exception\ConflictingVersion(sprintf('Stored version for %s found to be %s, trying to save version %s', $entity, $storedVersion, $newVersion), 1);
}
}
protected function getStoredVersion(EntityDTO $entity)
{
return $this->em->createQuery('SELECT MAX(events.version) FROM EventStore:EventDTO events WHERE events.entity_type = :entity AND events.entity_id = :id')->setParameter('entity', $entity->getType())->setParameter('id', $entity->getPlainId())->getSingleScalarResult();
}
/**
* Apply and record an event
*
* @param Event $event
* @return void
* @author Francisco Iglesias Gómez
*/
protected function recordThat(Event $event)
{
if (!$this->canHandleEvent($event)) {
return;
}
$this->apply($event);
$this->initStream();
$this->events->recordThat(EventMessage::record($event, EntityDTO::fromEntity($this)));
}
public static function fromEventDTO(EventDTO $dto)
{
return new static($dto->getEvent(), EntityDTO::fromEventDTO($dto), EventEnvelope::fromEventDTO($dto));
}
