DoctrineMigration - Container-aware migration with EntityManager example

ContainerAwareVersion.php

<?php

namespace Application\Migrations;

use AppBundle\Entity\Foo;
use Doctrine\DBAL\Migrations\AbstractMigration;
use Doctrine\DBAL\Schema\Schema;
use Symfony\Component\DependencyInjection\ContainerAwareInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Auto-generated Migration: Please modify to your needs!
 */
class Version20160609093209 extends AbstractMigration implements ContainerAwareInterface
{
    /** @var ContainerInterface */
    private $container;

    /**
     * @param ContainerInterface|null $container
     */
    public function setContainer(ContainerInterface $container = null)
    {
        $this->container = $container;
    }

    public function preUp(Schema $schema)
    {
        $em = $this->container->get('doctrine.orm.entity_manager');
        $fooRepository = $em->getRepository(Foo::class);

        // Enjoy

        $em->flush();
    }

    /**
     * @param Schema $schema
     */
    public function up(Schema $schema)
    {
        // this up() migration is auto-generated, please modify it to your needs
        $this->abortIf($this->connection->getDatabasePlatform()->getName() != 'mysql', 'Migration can only be executed safely on \'mysql\'.');
        // ...
    }

    /**
     * @param Schema $schema
     */
    public function down(Schema $schema)
    {
        // this down() migration is auto-generated, please modify it to your needs
        $this->abortIf($this->connection->getDatabasePlatform()->getName() != 'mysql', 'Migration can only be executed safely on \'mysql\'.');
        // ...
    }
}