/**
* @param Contract $aggregateRootType
* @param EventStream $eventStream
*
* @throws \Exception
*/
public function append(Contract $aggregateRootType, EventStream $eventStream)
{
$statement = $this->insertQuery->prepare();
try {
while ($eventStream->hasNext()) {
$event = $eventStream->next();
$statement->bindValue(':aggregate_id', $event->aggregateRootIdentifier()->toString());
$statement->bindValue(':aggregate_type', $aggregateRootType->toString());
$statement->bindValue(':aggregate_version', $event->sequenceNumber());
$statement->bindValue(':event_id', $event->identifier()->toString());
$statement->bindValue(':event_payload', $this->eventSerializer->serializePayload($event));
$statement->bindValue(':event_payload_type', $event->payloadType()->toString());
$statement->bindValue(':event_metadata', $this->eventSerializer->serializeMetadata($event));
$statement->bindValue(':event_metadata_type', $event->metadataType()->toString());
$statement->execute();
$statement->closeCursor();
}
} catch (\PDOException $exception) {
// 23000 being the primary key duplicate entry error code.
if ($exception->errorInfo[0] === '23000') {
throw new ConcurrencyException('Concurrent modification detected.');
}
throw $exception;
}
}
public function it_can_be_reconstituted_from_an_event_stream_history(EventStream $eventStream, Event $event)
{
$created = new Created(new UuidAggregateRootIdentifier());
$deleted = new Deleted(new UuidAggregateRootIdentifier());
$eventStream->hasNext()->willReturn(true, true, false);
$eventStream->next()->willReturn($event);
$event->sequenceNumber()->willReturn(1, 2);
$event->payload()->willReturn($created, $deleted);
$this->beConstructedThrough('loadFromHistory', [$eventStream]);
$this->lastCommittedEventSequenceNumber()->shouldReturn(2);
$this->isDeleted()->shouldReturn(true);
}
public function it_can_append_events_to_the_store(Contract $aggregateType, EventStream $eventStream, $query, \PDOStatement $statement, Event $event, AggregateRootIdentifier $aggregateRootIdentifier, MessageIdentifier $messageIdentifier)
{
$query->prepare()->willReturn($statement);
$eventStream->hasNext()->willReturn(true, false);
$eventStream->next()->willReturn($event);
$event->aggregateRootIdentifier()->willReturn($aggregateRootIdentifier);
$event->sequenceNumber()->willReturn(Argument::any());
$event->identifier()->willReturn($messageIdentifier);
$event->payloadType()->willReturn($aggregateType);
$event->metadataType()->willReturn($aggregateType);
$statement->bindValue(Argument::any(), Argument::any())->shouldBeCalled();
$statement->execute()->shouldBeCalled();
$statement->closeCursor()->shouldBeCalled();
$this->append($aggregateType, $eventStream);
}
/**
* @param Contract $aggregateType
* @param EventStream $eventStream
*
* @throws \Exception
*/
public function append(Contract $aggregateType, EventStream $eventStream)
{
$statement = $this->insertQuery->prepare();
$commitIdentifier = CommitIdentifier::generate()->toString();
$committedAt = new \DateTime();
while ($eventStream->hasNext()) {
$event = $eventStream->next();
$statement->bindValue(':aggregate_id', $event->aggregateRootIdentifier()->toString());
$statement->bindValue(':aggregate_type', $aggregateType->toString());
$statement->bindValue(':aggregate_version', $event->sequenceNumber());
$statement->bindValue(':event_id', $event->identifier()->toString());
$statement->bindValue(':event_payload', $this->eventSerializer->serializePayload($event));
$statement->bindValue(':event_payload_type', $event->payloadType()->toString());
$statement->bindValue(':event_metadata', $this->eventSerializer->serializeMetadata($event));
$statement->bindValue(':event_metadata_type', $event->metadataType()->toString());
$statement->bindValue(':commit_id', $commitIdentifier);
$statement->bindValue(':committed_at', $committedAt->format('UTC'));
$statement->execute();
$statement->closeCursor();
}
}
/**
* Roll-out all events to reconstitute the state of the aggregate.
*
* @param EventStream $eventStream
*
* @return static
*/
public static final function loadFromHistory(EventStream $eventStream)
{
$aggregate = new static();
while ($eventStream->hasNext()) {
$aggregate->replayChange($eventStream->next());
}
return $aggregate;
}