wallabag/app/DoctrineMigrations/Version20161031132655.php

<?php

namespace Application\Migrations;

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

/**
 * Added the internal setting to enable/disable downloading pictures.
 */
class Version20161031132655 extends AbstractMigration implements ContainerAwareInterface
{
    /**
     * @var ContainerInterface
     */
    private $container;

    public function setContainer(ContainerInterface $container = null)
    {
        $this->container = $container;
    }

    /**
     * @param Schema $schema
     */
    public function up(Schema $schema)
    {
        $images = $this->container
            ->get('doctrine.orm.default_entity_manager')
            ->getConnection()
            ->fetchArray('SELECT * FROM ' . $this->getTable('craue_config_setting') . " WHERE name = 'download_images_enabled'");

        $this->skipIf(false !== $images, 'It seems that you already played this migration.');

        $this->addSql('INSERT INTO ' . $this->getTable('craue_config_setting') . " (name, value, section) VALUES ('download_images_enabled', 0, 'misc')");
    }

    /**
     * @param Schema $schema
     */
    public function down(Schema $schema)
    {
        $this->addSql('DELETE FROM ' . $this->getTable('craue_config_setting') . " WHERE name = 'download_images_enabled';");
    }

    private function getTable($tableName)
    {
        return $this->container->getParameter('database_table_prefix') . $tableName;
    }
}