/** * Produces a persistable GDS entity based on an aggregate root and an event. * * @param \Atrauzzi\PhpEventSourcing\AggregateRoot $aggregateRoot * @param object $event * @return \Atrauzzi\PhpEventSourcing\GoogleCloudDatastore\Event */ private function createGdsEvent(AggregateRoot $aggregateRoot, $event) { $gdsEvent = $this->eventStore->createEntity(['created' => new DateTime(), 'type' => $this->getType($event), 'sequence' => $aggregateRoot->getLastSequence() + 1, 'aggregate_type' => $aggregateRoot->getType(), 'aggregate_id' => $aggregateRoot->getId(), 'discriminator_php' => get_class($event)]); // Extract all the POPO event's public properties and prefix them with `event_`. foreach (get_object_vars($event) as $property => $value) { $eventProperty = 'event_' . snake_case($property); $gdsEvent->{$eventProperty} = $value; } return $gdsEvent; }
/** * @param \Atrauzzi\PhpEventSourcing\AggregateRoot $aggregateRoot * @param object $event */ public function __construct(AggregateRoot $aggregateRoot, $event) { $this->aggregateRoot = $aggregateRoot; $this->event = $event; parent::__construct(sprintf('The data for `%s:%s` has changed, sequence at %s, expected %s.', $aggregateRoot->getType(), $aggregateRoot->getId(), $aggregateRoot->getLastSequence())); }
/** * Events must originate from our root, so start from there. * * @param \Atrauzzi\PhpEventSourcing\Event $event */ public function apply(Event $event) { $this->aggregateRoot->apply($event); }