Since doctrine/orm#10313 we now have a way to extend the automatic mapping of DBAL types.

Similar to \Doctrine\ORM\Configuration::setNamingStrategy there is now \Doctrine\ORM\Configuration::setTypedFieldMapper, which is not yet configurable by this bundle afaik.

It would be nice to have it configurable with a service, so we can extend it, like we have for the naming_strategy.

My current workaround to get custom types injected is rather cumbersome, and I'm not even sure if my way is to complicated and there is a much easier way to achieve this. I had to circumvent a lot of private service dependencies to get near the configuration stuff, while preserving all injections:

# services.php

$services->set('app.typed_field_mapper', DefaultTypedFieldMapper::class)
    ->args([[CustomField::class => 'customfield']]);

$services->set(Doctrine\ORM\Configuration::class)
    ->public()
    ->decorate('doctrine.orm.default_configuration', 'doctrine.orm.default_configuration.inner')
    ->parent('doctrine.orm.default_configuration')
    ->call('setTypedFieldMapper', [service('app.typed_field_mapper')]);