ZF2 Doctrine2 Entity Cache - caching

Question

Does somebody know how to cache doctrine2 entities in a zf2 project. I cant find a tutorial or website where this is explained. I cant find any information to start with defining a entity filecache.
Somebody of you got working links or examples.
Thanks

Answer 1

You have two options
Use doctrine's native caching, e.g. using memcache (in the memcache block you can use any kind of doctrine supported cache, a full list of cache drivers is available).
Use doctrine's adapter for Zend/Cache/Storage to use another cache that you're using elsewhere; the adapter is described in the DoctrineModule docs.
As an example of version two, I have something like the following configuration in a module (actually spread across various config files, so I can't guarantee that copy-pasting verbatim will work).
'services' => array(
'factories' => array(
// Wraps a ZF2 cache storage in a Doctrine compatible way
'doctrine.cache.zend.static.local' => function ($services) {
return new ZendStorageCache($services->get('cache.static.local'));
},
),
'caches' => array(
// A ZF2 cache, can be configured as you like
'cache.static.local' => array(
'adapter' => 'xcache',
'plugins' => array(
'exception_handler' => array(
'throw_exceptions' => false,
),
'serializer',
),
),
),
'doctrine' => array(
'configuration' => array(
'orm_default' => array(
'metadata_cache' => 'zend.static.local',
'query_cache' => 'zend.static.local',
),
),
),
Note that Doctrine annoyingly automatically prefixes "doctrine.cache." to the name of the cache service that you configure, so while we configure "metadata_cache" to "zend.static.local", the actual cache service must be named "doctrine.cache.zend.static.local". Obviously you can call them what you want, but you'll need to add that prefix to whatever you call them.

Answer 2

To activate file cache you just need to add in your module.config.php
'doctrine' => array(
'configuration' => array(
'orm_default' => array(
'metadata_cache' => 'filesystem',
'query_cache' => 'filesystem',
)
),
)
and it will create cache automatically in data/DoctrineModule/cache folder
here is my full doctrine config for ZF 2.2.4 + Doctrine 2
'doctrine' => array(
'driver' => array(
'application_entities' => array(
'class' =>'Doctrine\ORM\Mapping\Driver\AnnotationDriver',
'cache' => 'array',
'paths' => array(__DIR__ . '/../src/Modulename/Entity')
),
'orm_default' => array(
'drivers' => array(
'Modulename\Entity' => 'application_entities'
),
)
),
'configuration' => array(
'orm_default' => array(
'metadata_cache' => 'filesystem',
'query_cache' => 'filesystem',
)
),
),