generate annotated doctrine2 entites from db schema

Question

Is it possible to generate Doctrine 2 entities, with the relevant docblock annotations, from an existing database schema?

Answer 1

Yes it possible though RDBMS data types are not fully supported, so you might have to play with your code a bit before using it in your project. It's not straight forward as Doctrine 1.x used to be but still rather easy. Here some sample code I used myself (create folders properly before using it)

use Doctrine\ORM\Tools\EntityGenerator;

ini_set("display_errors", "On");

$libPath = __DIR__ . '/../lib/doctrine2';

// autoloaders
require_once $libPath . '/Doctrine/Common/ClassLoader.php';

$classLoader = new \Doctrine\Common\ClassLoader('Doctrine', $libPath);
$classLoader->register();

$classLoader = new \Doctrine\Common\ClassLoader('Entities', __DIR__);
$classLoader->register();

$classLoader = new \Doctrine\Common\ClassLoader('Proxies', __DIR__);
$classLoader->register();

// config
$config = new \Doctrine\ORM\Configuration();
$config->setMetadataDriverImpl($config->newDefaultAnnotationDriver(__DIR__ . '/Entities'));
$config->setMetadataCacheImpl(new \Doctrine\Common\Cache\ArrayCache);
$config->setProxyDir(__DIR__ . '/Proxies');
$config->setProxyNamespace('Proxies');


$connectionParams = array(
    'dbname' => 'xx',
    'user' => 'root',
    'password' => '',
    'host' => 'localhost',
    'driver' => 'pdo_mysql',
);

$em = \Doctrine\ORM\EntityManager::create($connectionParams, $config);

// custom datatypes (not mapped for reverse engineering)
$em->getConnection()->getDatabasePlatform()->registerDoctrineTypeMapping('set', 'string');
$em->getConnection()->getDatabasePlatform()->registerDoctrineTypeMapping('enum', 'string');

// fetch metadata
$driver = new \Doctrine\ORM\Mapping\Driver\DatabaseDriver(
    $em->getConnection()->getSchemaManager()
);
$classes = $driver->getAllClassNames();
foreach ($classes as $class) {
    //any unsupported table/schema could be handled here to exclude some classes
    if (true) {
        $metadata[] = $cmf->getMetadataFor($class);
    }
}

$em->getConfiguration()->setMetadataDriverImpl($driver);
$cmf = new \Doctrine\ORM\Tools\DisconnectedClassMetadataFactory($em);

$generator = new EntityGenerator();
$generator->setUpdateEntityIfExists(true);
$generator->setGenerateStubMethods(true);
$generator->setGenerateAnnotations(true);
$generator->generate($metadata, __DIR__ . '/Entities');

print 'Done!';