Index: en.txt
===================================================================
--- en.txt	(revision 7520)
+++ en.txt	(working copy)
@@ -1,5 +1,6 @@
-
-+ Implementing ArrayAccess for domain objects
-+ Implementing the NOTIFY changetracking policy
-+ Validation of Entities
-+ Implementing wakeup or clone
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+
++ Implementing ArrayAccess for domain objects
++ Implementing the NOTIFY changetracking policy
++ Validation of Entities
++ Implementing wakeup or clone
++ Integrating with CodeIgniter
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Index: en/integrating-with-codeigniter.txt
===================================================================
--- en/integrating-with-codeigniter.txt	(revision 0)
+++ en/integrating-with-codeigniter.txt	(revision 0)
@@ -0,0 +1,106 @@
+This is recipe for using Doctrine 2 in your [CodeIgniter](http://www.codeigniter.com) framework.
+
+Here is how to set it up:
+
+Make a CodeIgniter library that is both a wrapper and a bootstrap for Doctrine 2.
+
+++ Setting up the file structure
+
+Here are the steps:
+* Add a php file to your system/application/libraries folder called Doctrine.php. This is going to be your wrapper/bootstrap for the D2 entity manager.
+
+ * Put the Doctrine folder (the one that contains Common, DBAL, and ORM) inside that same libraries folder.
+
+ * Your system/application/libraries folder now looks like this:
+  system/applications/libraries
+  -Doctrine
+  -Doctrine.php
+  -index.html
+
+* If you want, open your config/autoload.php file and autoload your Doctrine library.
+
+-
+
+[php]
+$autoload['libraries'] = array('doctrine');
+
+++ Creating your Doctrine CodeIgniter library
+
+Now, here is what your Doctrine.php file should look like. Customize it to your needs.
+
+[php]
+use Doctrine\Common\ClassLoader,
+    Doctrine\ORM\Configuration,
+    Doctrine\ORM\EntityManager,
+    Doctrine\Common\Cache\ArrayCache,
+    Doctrine\DBAL\Logging\EchoSqlLogger;
+
+class Doctrine {
+
+  public $em = null;
+
+  public function __construct()
+  {
+    // load database configuration from CodeIgniter
+    require_once APPPATH.'config/database.php';
+
+    // Set up class loading. You could use different autoloaders, provided by your favorite framework,
+    // if you want to.
+    require_once APPPATH.'libraries/Doctrine/Common/ClassLoader.php';
+
+    $doctrineClassLoader = new ClassLoader('Doctrine',  APPPATH.'libraries');
+    $doctrineClassLoader->register();
+    $entitiesClassLoader = new ClassLoader('models', rtrim(APPPATH, "/" ));
+    $entitiesClassLoader->register();
+    $proxiesClassLoader = new ClassLoader('Proxies', APPPATH.'models/proxies');
+    $proxiesClassLoader->register();
+
+    // Set up caches
+    $config = new Configuration;
+    $cache = new ArrayCache;
+    $config->setMetadataCacheImpl($cache);
+    $config->setQueryCacheImpl($cache);
+
+    // Proxy configuration
+    $config->setProxyDir(APPPATH.'/models/proxies');
+    $config->setProxyNamespace('Proxies');
+
+    // Set up logger
+    $logger = new EchoSqlLogger;
+    $config->setSqlLogger($logger);
+
+    $config->setAutoGenerateProxyClasses( TRUE );
+
+    // Database connection information
+    $connectionOptions = array(
+        'driver' => 'pdo_mysql',
+        'user' =>     $db['default']['username'],
+        'password' => $db['default']['password'],
+        'host' =>     $db['default']['hostname'],
+        'dbname' =>   $db['default']['database']
+    );
+
+    // Create EntityManager
+    $this->em = EntityManager::create($connectionOptions, $config);
+  }
+}
+
+Please note that this is a development configuration; for a production system you'll want to use a real caching system like APC, get rid of EchoSqlLogger, and turn off autoGenerateProxyClasses. 
+
+For more details, consult the [Doctrine 2 Configuration documentation](http://www.doctrine-project.org/documentation/manual/2_0/en/configuration#configuration-options).
+
+++ Now to use it
+
+Whenever you need a reference to the entity manager inside one of your controllers, views, or models you can do this:
+
+[php]
+$em = $this->doctrine->em;
+
+That's all there is to it. Once you get the reference to your EntityManager do your Doctrine 2.0 voodoo as normal.
+
+Note: If you do not choose to autoload the Doctrine library, you will need to put this line before you get a reference to it:
+
+[php]
+$this->load->library('doctrine');
+
+Good luck! 
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