Symfony2: How to override a vendor file

Question

I know how to override anypart of a bundle in Symfony2. I followed this

and it worked.

But what if I want to override a file in the vendor folder which is not part of a bundle.

In my specific example I need to override

vendor/doctrine/orm/lib/Doctrine/ORM/Mapping/Driver/XmlDriver.php

Is this possible? Thanks for your help

Answer 1

You have to tell the EntityManager which Metadata Driver to use:

<?php
$driver = new \Doctrine\ORM\Mapping\Driver\XmlDriver('/path/to/mapping/files');
$em->getConfiguration()->setMetadataDriverImpl($driver);

Instead of the default XmlDriver , you use your extended version, eg

<?php
$driver = new \My\XmlDriver('/path/to/mapping/files');
$em->getConfiguration()->setMetadataDriverImpl($driver);

The $em in this snippet is the EntityManager.

See http://docs.doctrine-project.org/en/latest/reference/metadata-drivers.html for further details on how to write and use your own Metadriver implementations.