inheritance aggregate root with prooph

gistfile1.php

A minor patch to the aggregate repository is needed for this! see: https://github.com/prooph/event-store/pull/154

<?php

abstract class User extends \Prooph\EventSourcing\AggregateRoot
{
    protected $type;
    
    public function type()
    {
        return $this->type;
    }
}

class Admin extends User
{
    public static function register($name, $email)
    {
        $self = new self();
        $self->recordThat(UserWasRegisterd::withData('admin', $name, $email);
        
        return $self;
    }
}

class Member extends User
{
    public static function register($name, $email)
    {
        $self = new self();
        $self->recordThat(UserWasRegisterd::withData('member', $name, $email);
        
        return $self;
    }
}

final class UserAggregateTranslator extends \Prooph\EventSourcing\EventStoreIntegration\AggregateTranslator
{
    /**
     * @param \Prooph\EventStore\Aggregate\AggregateType $aggregateType
     * @param \Iterator $historyEvents
     * @return object reconstructed AggregateRoot
     */
    public function reconstituteAggregateFromHistory(
        \Prooph\EventStore\Aggregate\AggregateType $aggregateType, 
        \Iterator $historyEvents
    ) {
        $aggregateRootDecorator = $this->getAggregateRootDecorator();
        
        $firstEvent = $historyEvents->current();
        $type = $firstEvent->type();
        
        if ($type === 'admin') {
            return $aggregateRootDecorator->fromHistory(Admin::class, $historyEvents);
        } elseif ($type === 'member') {
            return $aggregateRootDecorator->fromHistory(Member::class, $historyEvents);
        }
    }
}


final class EventStoreUserCollection extends 
    \Prooph\EventStore\Aggregate\AggregateRepository
{
    public function add(User $user)
    {
        $this->addAggregateRoot($user);
    }

    public function get(UserId $userId)
    {
        return $this->getAggregateRoot($userId->toString());
    }

    protected function assertAggregateType($eventSourcedAggregateRoot)
    {
        \Assert\Assertion::isInstanceOf($eventSourcedAggregateRoot, User::class);
    }
}