Aggregate

Info

You can find out more about aggregates in the library documentation. This documentation is limited to bundle integration.

Register aggregates

A path must be specified for Event Sourcing to know where to look for your aggregates.

patchlevel_event_sourcing:
  aggregates: '%kernel.project_dir%/src'

Tip

You can also define multiple paths by specifying an array.

Define aggregates

Next, you need to create a class to serve as an aggregate. In our example it is a hotel. This class must inherit from AggregateRoot and get the Aggregate attribute.

namespace App\Domain\Hotel;

use Patchlevel\EventSourcing\Aggregate\AggregateRoot;
use Patchlevel\EventSourcing\Attribute\Aggregate;

#[Aggregate(name: 'hotel')]
final class Hotel extends AggregateRoot
{
    // ...
}

Note

You should read here how the aggregates then work internally.