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