Symfony 2 console command proxy for Doctrine's ValidateSchemaCommand

ValidateSchemaCommand.php

<?php
// src/Nw/LibBundle/Command/ValidateSchemaCommand.php

namespace Nw\LibBundle\Command;

use Symfony\Bundle\DoctrineBundle\Command\Proxy\DoctrineCommandHelper;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\Console\Output\Output;
use Doctrine\ORM\Tools\Console\Command\ValidateSchemaCommand as DoctrineValidateSchemaCommand;

/**
 * Command to validate that the current mapping is valid.
 *
 * @author Jasper N. Brouwer <jasper@nerdsweide.nl>
 */
class ValidateSchemaCommand extends DoctrineValidateSchemaCommand
{

    /** {@inheritdoc} */
    protected function configure()
    {
        parent::configure();

        $this->setName( 'doctrine:schema:validate' )
             ->setDescription( 'Validate that the mapping files' )
             ->addOption( 'em', null, InputOption::VALUE_OPTIONAL, 'The entity manager to use for this command' )
             ->setHelp( 'Validate that the mapping files are correct and in sync with the database.' );
    }

    /** {@inheritdoc} */
    protected function execute( InputInterface $input, OutputInterface $output )
    {
        DoctrineCommandHelper::setApplicationEntityManager( $this->getApplication(), $input->getOption( 'em' ));

        parent::execute( $input, $output );
    }
}