DependencyFactory::getEventDispatcher triggers a deprecation

[VincentLanglet]

Bug Report

Q	A
BC Break	no
Version	x.y.z

Summary

DependencyFactory::getEventDispatcher is implemented this way:

return $this->getDependency(EventDispatcher::class, function (): EventDispatcher {
    return new EventDispatcher(
        $this->getConnection(),
        $this->getConnection()->getEventManager(),
    );
});

but Connection::getEventManager is deprecated by dbal since doctrine/dbal#5784

Not sure how to fix this @greg0ire @derrabus

[derrabus]

Deprecate calling fromConnection() without passing an event manager?

[VincentLanglet]

Seems like EntityManagerInterface::getEventManager exists ; I'll try this instead.

[derrabus]

Seems like EntityManagerInterface::getEventManager exists ; I'll try this instead.

Yes, but that'll only work if you have an entity manager. You can use migrations with a connection only.

[stof]

fromConnection should indeed allow passing an EventManager explicitly, using Connection::getEventManager only as fallback (triggering a deprecation telling you to pass an EventManager explicitly).
fromEntityManager would register the EventManager using the ORM EventManager.

DependencyFactory::getEventDispatcher would then use a DependencyFactory::getEventManager method reading the configured event manager.

[VincentLanglet]

DoctrineCommand is doing DependencyFactory::fromConnection does it mean we have to add EventManager to the constructor of all doctrine command ?

[stof]

To be compatible with CLI commands, we might need a concept of an event manager loader instead of passing directly an event manager.