FuelPHP Doctrine 2 Package

About

This package contains a basic wrapper around the Doctrine 2 ORM functionality for access using the FuelPHP framework. It is distributed under the same LGPL license as Doctrine itself.

How to install

You can install this package with Composer. So first you'll need Composer, which can be found at http://getcomposer.org/

1. If your application doesn't have a composer.json file please create it.
2. Add an additional require

"aspendigital/fuel-doctrine2": "dev-master"

3. Install with composer install

Quick start

Configuration is simple and involves adding additional Doctrine configuration options to your FuelPHP db.php config.

To get running quickly, there are only three required settings:

in app/config/db.php add

'doctrine2'=>array(
	'proxy_dir' => APPPATH . 'classes' . DS . 'proxy',
	'proxy_namespace' => 'Proxy',
	'metadata_path' => APPPATH . 'classes' . DS . 'entity'
)

and of course configure database settings (user, password etc) as you would normally do for Fuel.

How to use

when you've configured your application, to get an EntityManager, use the following code:

$em = \Fuel\Doctrine::manager(); // Uses the connection referred to by the 'active' index in your configuration
$em = \Fuel\Doctrine::manager('connection_2'); // Specify connection explicitly

Or you can check the versions of the Doctrine components:

print_r(\Fuel\Doctrine::version_check());

Typical configuration example

Using the cascading configuration files that FuelPHP offers, a typical configuration looks something like:

app/config/db.php:

return array(
	'active'=>'default',

	'doctrine2'=>array(
		'proxy_dir'       => APPPATH . 'classes' . DS . 'proxy',
		'proxy_namespace' => 'Proxy',
		'metadata_path'   => APPPATH . 'classes' . DS . 'entity',
		'metadata_driver' => 'annotation',
		'init_callback'   => array('MyClass', 'init')
	)

	/**
	 * Base config, just need to set the DSN, username and password in env. config.
	 */
	'default' => array(
		'type'        => 'pdo',
		'connection'  => array(
			'persistent' => false,
			'compress'   => false
		),
		'charset'      => 'utf8',
		'profiling'    => false
	)
);

app/config/development/db.php:

return array(
	'doctrine2'=>array(
		'auto_generate_proxy_classes' => true
	),

	'default'=>array(
		'connection'  => array(
			'dsn'            => 'pgsql:host=localhost;dbname=fuel_db',
            'username'       => 'your_username',
            'password'       => 'y0uR_p@ssW0rd'
		)
		'profiling'   => true
	)
);

app/config/production/db.php:

return array(
	'doctrine2'=>array(
		'auto_generate_proxy_classes'   => false,
		'cache_driver'                  => 'apc'
	),

	'default'=>array(
		'connection'  => array(
			'dsn'            => 'pgsql:host=production_server;dbname=fuel_db',
            'username'       => 'your_username',
            'password'       => 'y0uR_p@ssW0rd'
		)
		'profiling'    => false
	)
);

In the development environment, we use the default array cache (nothing is saved permanently) and enable profiling. In the production environment, we leave profiling off and use APC (or some other caching solution).

Connection setting override

If for some reason you need to override Doctrine2 settings on a connection-by-connection basis, include a doctrine2 key in your connection settings:

return array(

	'default'=>array(
		'connection'  => array(
			'dsn'            => 'pgsql:host=production_server;dbname=fuel_db',
            'username'       => 'your_username',
            'password'       => 'y0uR_p@ssW0rd'
		)
		'profiling'    => false,
		'doctrine2'    => array(
			'cache_driver'   => 'zend' // Override the cache driver only for the 'default' connection
		)
	)
);

Configuration options

Refer to the Doctrine 2 documentation

• proxy_dir: the directory containing your proxy classes
• proxy_namespace: the namespace where the proxy classes reside
• metadata_path: the directory containing your metadata
• metadata_driver: options are 'annotation' (default), 'php', 'simplified_xml', 'simplified_yaml', 'xml', 'yaml'
• auto_generate_proxy_classes: true/false for whether Doctrine should generate proxy classes for entities it loads
• cache_driver: options are 'array' (default), 'apc', 'xcache', 'wincache', 'zend'
• init_callback: A 'callable' value which will be run when the EntityManager is instantiated. This can be used to set up custom DBAL types or otherwise customize the environment.

app/classes/myclass.php:

class MyClass
{
	/**
	 * @param \Doctrine\ORM\EntityManager $manager
	 * @param string $connection
	 */
	public static function init($manager, $connection)
	{
		...
	}
}

On connection:

• driver: we try to guess the DBAL driver to load to connect to your database, but you may have to set this if the guessing doesn't work for you
• Consult the Doctrine DBAL documentation for other DBAL-specific options

For FuelPHP options, refer to Fuel database configuration

• type
• charset
• profiling
• enable_cache: in our case, there is always some caching taking place, but it's only temporary unless you've changed the cache_driver setting
• connection.persistent
• connection.compress

Profiling

No configuration is required beyond enabling profiling for your connection. Queries sent through Doctrine ORM and directly through DBAL will automatically appear in the Fuel profiler.

Doctrine 2 ORM

Doctrine 2 is an object-relational mapper (ORM) for PHP 5.3.2+ that provides transparent persistence for PHP objects. It sits on top of a powerful database abstraction layer (DBAL). One of its key features is the option to write database queries in a proprietary object oriented SQL dialect called Doctrine Query Language (DQL), inspired by Hibernates HQL. This provides developers with a powerful alternative to SQL that maintains flexibility without requiring unnecessary code duplication.

More resources:

• Website
• Documentation
• Issue Tracker
• Downloads