Use Doctrine metadata

[mnapoli]

Is there a way to avoid writing the same metadata twice: once for Doctrine, once for the Serializer?

I am thinking mainly about the property types. I am currently using YAML mapping for Doctrine, and YAML mapping to for the serializer.

[stof]

The latest version is able to guess the metadata based on the Doctrine mapping if you register the driver: https://github.com/schmittjoh/serializer/blob/master/src/JMS/Serializer/Metadata/Driver/DoctrineTypeDriver.php

[mnapoli]

Great thanks! When you say latest version, you mean stable (0.15.0) or master?

And how do we use this driver? I can't find anything about it in the SerializerBuilder (at least in stable)?

[stof]

it is available in 0.15.0.

Hmm, the SerializerBuilder indeed does not support registering the driver

[mnapoli]

If I create a PR adding SerializerBuilder::addDriver(Driver $driver) would that help? (it would create a DriverChain if 1 driver or more is manually registered, taking into account the current code)

[mnapoli]

or addMetadataDriver()? maybe that's better

[schmittjoh]

This is related to #232 - which is basically about that.

addDriver() will not work, we will need something like configureDriver($callback) as you need to wrap the current driver chain in the DoctrineTypeDriver.

[mnapoli]

OK should I close this one then?

[schmittjoh]

No, let's keep this open. It already has some more details.

[eddiejaoude]

Any ideas, when this functionality will be available? Thanks

[eddiejaoude]

👍

[mnapoli]

FYI, here is how I managed to do it:

$builder = SerializerBuilder::create();
$builder->addMetadataDir(...)
    ->addMetadataDir(..., 'User\Domain');

$builder->setMetadataDriverFactory(new CallbackDriverFactory(function ($metadataDirs, Reader $reader) use ($container) {
    $driver = new DriverChain([
        new YamlDriver(new FileLocator($metadataDirs)),
        new AnnotationDriver($reader),
    ]);

    /** @var ManagerRegistry $em */
    $registry = $container->get(ManagerRegistry::class);
    return new DoctrineTypeDriver($driver, $registry);
}));

return $builder->build();

I think it's too bad it forces us to use the ManagerRegistry instead of the EntityManager directly because Doctrine doesn't ship with a default one. If you don't use Symfony you have write one, and that's seriously weird to implement (no documentation at all).

But anyway it seems to work, I have done only small tests for now. Thank you for implementing it @schmittjoh.

[schmittjoh]

I don't think we get around the registry requirement. A simple registry implementation is here:
doctrine/common#242