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  • Your Models as Aggregates
  • Demo

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  1. Modules
  2. Laravel

Eloquent

PreviousDatabase Connection (DBAL Module)NextLaravel Queues

Last updated 1 year ago

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Ecotone comes with out of the box integration with Eloquent for . If you've installed Laravel, then you may start using Eloquent based Aggregates.

Your Models as Aggregates

Mark your Models with Aggregate attribute and set up Command Handlers.

#[Aggregate]
final class Issue extends Model
{
    use WithEvents;

    #[CommandHandler()] // 1. issue.report factory method
    public static function reportNew(ReportIssue $command): self
    {
        $issue = new self();
        $issue->email = $command->email->address;
        $issue->open = true;
        $issue->content = $command->content;
        $issue->save(); // 3. Saving

        // 4. Event publishing
        $issue->recordThat(new IssueWasReported($issue->id));

        return $issue;
    }
    
    #[CommandHandler("issue.close")] // 2. issue.close action method
    public function close(): void
    {
       if (!$this->open) {
           return;  
       }
      
       $this->open = false;
      
       $this->recordThat(new IssueWasClosed($this->id));
    }

    #[AggregateIdentifierMethod("id")]
    public function getId(): ?int
    {
        return $this->id;
    }
}
  1. Calling factory method "issue.report":

$this->commandBus->send(new ReportIssue());
  1. Calling action method "issue.close":

$this->commandBus->sendWithRouting("issue.close", metadata: ["aggregate.id" => $id]);
  1. Aggregates require state to be always valid. If we have auto-generated identifiers from database, then in order to be assured that returned Issue has id, we need to call save. If you generate identifiers outside of the database, this step is not needed.

  2. Event publishing - if we have imported trait WithEvents, then we can publish events from the Aggregate using recordThat method.

In case of Ecotone you may use routing for your Message Handlers or direct Message Classes. It's up to you to decide whatever works best in your context.

Demo

Read more about integration in .

following blog post
State-Stored Aggregates