Qfyilyi

sry if something is not so accurate, but im less experienced with Symfony

I have the following orm mapping:

src/app/ExampleBundle/Resources/config/doctrine/Base.orm.yml



appExampleBundleEntityBase:

type: mappedSuperclass

fields:

    createdAt:

        type: datetime

        nullable: true

        options:

            default: null

    updatedAt:

        type: datetime

        nullable: true

        options:

            default: null

This creates a entity Base which i modified to be abstract

src/app/ExampleBundle/Entity/Base.php



abstract class Base {

    ...

}

I have some other entities they extend this abstract class e.g.

src/app/ExampleBundle/Entity/Category.php



class Category extends Base

{

    ...

}

Now i tried to add a listener that sets the createdAt/updatedAt datetime on every persist for every entity that extends the Base Entity

src/app/ExampleBundle/EventListener/BaseListener.php



namespace appExampleBundleEventListener;



use DoctrineORMEventLifecycleEventArgs;

use SymfonyComponentSecurityCoreAuthenticationTokenStorageTokenStorage;

use SymfonyComponentSecurityCoreUserUserInterface;

use appExampleBundleEntityBase;



class BaseListener

{

    protected $tokenStorage;



    public function __construct(TokenStorage $tokenStorage)

    {

        $this->tokenStorage = $tokenStorage;

    }



    public function prePersist(Base $base, LifecycleEventArgs $event)

    {

        $user = $this->tokenStorage->getToken()->getUser();

        if (!$user instanceof UserInterface) {

            $user = null;

        }



        if ($base->getCreatedAt() === null) {

            $base->setCreated($user, new DateTime());

        } else {

            $base->setUpdated($user, new DateTime());

        }

    }

}

And added it to the bundles services.yml

src/app/ExampleBundle/Resources/config



services:

    appExampleBundleEventListenerBaseListener:

        arguments: ['@security.token_storage']

        tags:

            - { name: doctrine.orm.entity_listener, entity: appExampleBundleEntityBase, event: prePersist }

Symfony throws no Exception, but the defined event seems also not triggered.

I tried to change the entity param in services to the "real" entity Category, but still no error, nor the event triggered.

I think, i did everything as it is decribed in the documentation. But it still not working.

The command

debug:event-dispatcher

does also not show the event

So, the question is: What did i wrong?

Here the documentation I follow https://symfony.com/doc/3.4/doctrine/event_listeners_subscribers.html

The prePersist method is called for all the entities so you must exclude non instance of appExampleBundleEntityBase. The first argument is LifecycleEventArgs.

public function prePersist(LifecycleEventArgs $event)

{

    $base = $event->getObject();

    if (!$base instanceof Base) {

        return;

    }

    $user = $this->tokenStorage->getToken()->getUser();

    if (!$user instanceof UserInterface) {

        $user = null;

    }



    if ($base->getCreatedAt() === null) {

        $base->setCreated($user, new DateTime());

    } else {

        $base->setUpdated($user, new DateTime());

    }

}

I can recommend you StofDoctrineExtensionsBundle (Timestampable) that does exactly what you want. It based on DoctrineExtensions.

There is even a trait that works like a charm.

After some research, many more tests, diving into the EntityManager and the UnitOfWork. Nothing seems to work fine. I get it so far to work on doctrine:fixtures:load, but for any reason they still not working if i use the entity manager in the Controllers. So, i decided to try another way with a subscriber.

tags:

    - { name: doctrine.event_subscriber }



class ... implements EventSubscriber

So i still dont know why the Listener did not work as expected, but with the subscribers i found a solution that does.

Thanks to all of you for support :)