<?php // bootstrap.php
define('APPLICATION_ENV', 'development');

// Setup Autoloader (1)
// See :doc:`Configuration <../reference/configuration>` for up to date autoloading details.
require_once '../../lib/vendor/doctrine-common/lib/Doctrine/Common/ClassLoader.php';
$classLoader = new \Doctrine\Common\ClassLoader('Doctrine\ORM', realpath(__DIR__ . '/../../lib'));
$classLoader->register();
$classLoader = new \Doctrine\Common\ClassLoader('Doctrine\DBAL', realpath(__DIR__ . '/../../lib/vendor/doctrine-dbal/lib'));
$classLoader->register();
$classLoader = new \Doctrine\Common\ClassLoader('Doctrine\Common', realpath(__DIR__ . '/../../lib/vendor/doctrine-common/lib'));
$classLoader->register();
$classLoader = new \Doctrine\Common\ClassLoader('Symfony', realpath(__DIR__ . '/../../lib/vendor'));
$classLoader->register();
$classLoader = new \Doctrine\Common\ClassLoader('Entities', __DIR__);
$classLoader->register();
$classLoader = new \Doctrine\Common\ClassLoader('Proxies', __DIR__);
$classLoader->register();

$config = new Doctrine\ORM\Configuration(); // (2)

// Proxy Configuration (3)
$config->setProxyDir(__DIR__.'/Proxies');
$config->setProxyNamespace('Proxies');
$config->setAutoGenerateProxyClasses((APPLICATION_ENV == 'development'));

// Mapping Configuration (4)
$driverImpl = $config->newDefaultAnnotationDriver(__DIR__.'/Entities');
$config->setMetadataDriverImpl($driverImpl);

// Caching Configuration (5)
if (APPLICATION_ENV == 'development') {
    $cache = new \Doctrine\Common\Cache\ArrayCache();
} else {
    $cache = new \Doctrine\Common\Cache\ApcCache();
}
$config->setMetadataCacheImpl($cache);
$config->setQueryCacheImpl($cache);

// database configuration parameters (6)
$conn = array(
    'driver' => 'pdo_mysql',
    'host' => 'host',
    'dbname' => 'tbl',
    'user' => 'user',
    'password' => 'pw'
);

// obtaining the entity manager (7)
$em = \Doctrine\ORM\EntityManager::create($conn, $config);
?>


<?php // test.php
require_once 'bootstrap.php';

$widgets = $em->find('Widgets', 1);

var_dump($widgets);
?>


<?php // Entities/Widgets.php

/**
 * Widgets
 *
 * @Table(name="widgets")
 * @Entity
 */
class Widgets
{

    /**
     * @var integer $id
     *
     * @Column(name="id", type="integer", nullable=false)
     * @Id
     * @GeneratedValue
     */
    private $id;

    /**
     * @var string $sourceUrl
     *
     * @Column(name="source_url", type="string", length=2048, nullable=false)
     */
    private $sourceUrl;

    /**
     * @var boolean $isextern
     *
     * @Column(name="isextern", type="boolean", nullable=false)
     */
    private $isextern;
//...
?>

sandbox$ l Entities/
drwxr-sr-x 2 user group    0 2011-02-09 13:01 ./
drwxr-sr-x 6 user group    0 2011-02-09 14:40 ../
-rw-rw-r-- 1 user group 1,5K 2011-02-09 13:42 Widgets.php




sandbox$ php test.php
PHP Warning:  class_parents(): Class Widgets does not exist and could not be loaded in doctrine2-orm/lib/Doctrine/ORM/Mapping/ClassMetadataFactory.php on line 222
PHP Stack trace:
PHP   1. {main}() doctrine2-orm/tools/sandbox/test.php:0
PHP   2. Doctrine\ORM\EntityManager->find() doctrine2-orm/tools/sandbox/test.php:4
PHP   3. Doctrine\ORM\EntityManager->getRepository() doctrine2-orm/lib/Doctrine/ORM/EntityManager.php:340
PHP   4. Doctrine\ORM\EntityManager->getClassMetadata() doctrine2-orm/lib/Doctrine/ORM/EntityManager.php:563
PHP   5. Doctrine\ORM\Mapping\ClassMetadataFactory->getMetadataFor() doctrine2-orm/lib/Doctrine/ORM/EntityManager.php:247
PHP   6. Doctrine\ORM\Mapping\ClassMetadataFactory->loadMetadata() doctrine2-orm/lib/Doctrine/ORM/Mapping/ClassMetadataFactory.php:169
PHP   7. Doctrine\ORM\Mapping\ClassMetadataFactory->getParentClasses() doctrine2-orm/lib/Doctrine/ORM/Mapping/ClassMetadataFactory.php:245
PHP   8. class_parents() doctrine2-orm/lib/Doctrine/ORM/Mapping/ClassMetadataFactory.php:222