em.php

<?php
/**
 * This entity manager configuration works with doctrine 2.1.x and 2.2.x
 * versions. Regarding AnnotationDriver setup it most probably will be changed into
 * xml. Because annotation driver fails to read other classes in same namespace
 */
// connection args, modify at will
$connection = array(
    'host' => '127.0.0.1',
    'port' => 3306,
    'user' => 'root',
    'password' => 'nimda',
    'dbname' => 'test',
    'driver' => 'pdo_mysql'
);

// First of all autoloading of vendors

$vendorPath = realpath(__DIR__.'/../vendor');
$gedmoPath = realpath(__DIR__.'/../lib');

$doctrineClassLoaderFile = $vendorPath.'/doctrine-common/lib/Doctrine/Common/ClassLoader.php';
if (!file_exists($doctrineClassLoaderFile)) {
    die('cannot find vendor, run: php bin/vendors.php to install doctrine');
}

require $doctrineClassLoaderFile;
use Doctrine\Common\ClassLoader;
// autoload all vendors

$loader = new ClassLoader('Doctrine\Common', $vendorPath.'/doctrine-common/lib');
$loader->register();

$loader = new ClassLoader('Doctrine\DBAL', $vendorPath.'/doctrine-dbal/lib');
$loader->register();

$loader = new ClassLoader('Doctrine\ORM', $vendorPath.'/doctrine-orm/lib');
$loader->register();

// gedmo extensions
$loader = new ClassLoader('Gedmo', $gedmoPath);
$loader->register();

// if you use yaml, you need a yaml parser, same as command line tool
$loader = new ClassLoader('Symfony', $vendorPath);
$loader->register();

// autoloader for Entity namespace
$loader = new ClassLoader('Entity', __DIR__.'/app');
$loader->register();

// ensure standard doctrine annotations are registered
Doctrine\Common\Annotations\AnnotationRegistry::registerFile(
    $vendorPath.'/doctrine-orm/lib/Doctrine/ORM/Mapping/Driver/DoctrineAnnotations.php'
);

// Second configure ORM
// globally used cache driver, in production use APC or memcached
$cache = new Doctrine\Common\Cache\ArrayCache;
// standard annotation reader
$annotationReader = new Doctrine\Common\Annotations\AnnotationReader;
$cachedAnnotationReader = new Doctrine\Common\Annotations\CachedReader(
    $annotationReader, // use reader
    $cache // and a cache driver
);
// create a driver chain for metadata reading
$driverChain = new Doctrine\ORM\Mapping\Driver\DriverChain();
// load superclass metadata mapping only, into driver chain
// also registers Gedmo annotations.NOTE: you can personalize it
Gedmo\DoctrineExtensions::registerAbstractMappingIntoDriverChainORM(
    $driverChain, // our metadata driver chain, to hook into
    $cachedAnnotationReader // our cached annotation reader
);

// now we want to register our application entities,
// for that we need another metadata driver used for Entity namespace
$annotationDriver = new Doctrine\ORM\Mapping\Driver\AnnotationDriver(
    $cachedAnnotationReader, // our cached annotation reader
    array(__DIR__.'/app/Entity') // paths to look in
);
// NOTE: driver for application Entity can be different, Yaml, Xml or whatever
// register annotation driver for our application Entity namespace
$driverChain->addDriver($annotationDriver, 'Entity');

// general ORM configuration
$config = new Doctrine\ORM\Configuration;
$config->setProxyDir(sys_get_temp_dir());
$config->setProxyNamespace('Proxy');
$config->setAutoGenerateProxyClasses(false); // this can be based on production config.
// register metadata driver
$config->setMetadataDriverImpl($driverChain);
// use our allready initialized cache driver
$config->setMetadataCacheImpl($cache);
$config->setQueryCacheImpl($cache);

// Third, create event manager and hook prefered extension listeners
$evm = new Doctrine\Common\EventManager();
// gedmo extension listeners

// sluggable
$sluggableListener = new Gedmo\Sluggable\SluggableListener;
// you should set the used annotation reader to listener, to avoid creating new one for mapping drivers
$sluggableListener->setAnnotationReader($cachedAnnotationReader);
$evm->addEventSubscriber($sluggableListener);

// tree
$treeListener = new Gedmo\Tree\TreeListener;
$treeListener->setAnnotationReader($cachedAnnotationReader);
$evm->addEventSubscriber($treeListener);

// loggable, not used in example
//$loggableListener = new Gedmo\Loggable\LoggableListener;
//$loggableListener->setAnnotationReader($cachedAnnotationReader);
//$evm->addEventSubscriber($loggableListener);

// timestampable
$timestampableListener = new Gedmo\Timestampable\TimestampableListener;
$timestampableListener->setAnnotationReader($cachedAnnotationReader);
$evm->addEventSubscriber($timestampableListener);

// translatable
$translatableListener = new Gedmo\Translatable\TranslatableListener;
// current translation locale should be set from session or hook later into the listener
// most important, before entity manager is flushed
$translatableListener->setTranslatableLocale('en');
$translatableListener->setDefaultLocale('en');
$translatableListener->setAnnotationReader($cachedAnnotationReader);
$evm->addEventSubscriber($translatableListener);

// sortable, not used in example
//$sortableListener = new Gedmo\Sortable\SortableListener;
//$sortableListener->setAnnotationReader($cachedAnnotationReader);
//$evm->addEventSubscriber($sortableListener);

// mysql set names UTF-8 if required
$evm->addEventSubscriber(new Doctrine\DBAL\Event\Listeners\MysqlSessionInit());
// Finally, create entity manager
return Doctrine\ORM\EntityManager::create($connection, $config, $evm);