Eccube\Controller\Install\InstallController::dropTables PHP Метод

    private function dropTables()
    {
        $this->resetNatTimer();
        $em = $this->getEntityManager();
        $metadatas = $em->getMetadataFactory()->getAllMetadata();
        $schemaTool = new SchemaTool($em);
        $schemaTool->dropSchema($metadatas);
        $em->getConnection()->executeQuery('DROP TABLE IF EXISTS doctrine_migration_versions');
        return $this;
    }