Doctrine caching configuration - php

Question

In the doctrine docs, it looks like I need the configuration object available for metadata caching:
<?php
use Doctrine\ORM\EntityManager;
use Doctrine\ORM\Configuration;
use Doctrine\Common\Proxy\ProxyFactory;
// ...
if ($applicationMode == "development") {
$cache = new \Doctrine\Common\Cache\ArrayCache;
} else {
$cache = new \Doctrine\Common\Cache\ApcCache;
}
$config = new Configuration;
$config->setMetadataCacheImpl($cache);
$driverImpl = $config->newDefaultAnnotationDriver('/path/to/lib/MyProject/Entities');
$config->setMetadataDriverImpl($driverImpl);
However, this is currently inside a module in the zend directory in composer, so I cant change it. Id like to hand the option to do this in the array configuration:
return array(
'doctrine' => array(
'connection' => array(
'orm_default' => array(
'params' => array(
'pdo' => new PDO("connection details")
),
'query_cache'=>new PhpFileCache(), //<- like this
'metadata_cache'=>new PhpFileCache(), //<- and this
),
),
),
I know this is possible because I have done it once before, however, I cant seem to find this method on the docs anymore. The current docs show the setup for YAML.

Answer 1

I can set up many connections in the Doctrine entity manager, but I supply one configuration since this sets up things that run once for the lifetime of that run, or if we have a cache installed such as APC, the lifetime of that release.
I achieve this by adding the info to $config['doctrine']['configuration'], not $config['doctrine']['orm_default/your_connection']['configuration']
return array(
'doctrine' => array(
'connection' => array(
'orm_default' => array(
'params' => array(
'pdo' => new PDO("connection")
),
),
),
'configuration' => array(
'orm_default' => array(
'metadata_cache' => 'filesystem',
'query_cache' => 'filesystem',
'result_cache' => 'filesystem'
),
),
),