caches

config_prod.yml

doctrine:
    orm:
        metadata_cache_driver: apc # annotation  
        query_cache_driver: redis  # dql parsed in sql
        result_cache_driver: redis # query result

controller.php

<?php

if (!$data = $this->get('my_cache')->fetch('foo')) {
    $data = $this->doSomeHeavyCalculation();
    $this->get('my_cache')->store('foo', $data)
} 

hydratationrepository.php

<?php

$cache = new ApcCache();
$cache->setNamespace('Hydratation');
// or using LiipDoctrineCacheBundle
$cache = $container->get('liip_doctrine_cache.ns.[your_name]');
// setHydration
$query->setHydrationCacheProfile(new QueryCacheProfile($ttl, null, $cache));

MyWarmer.php

<?php

namespace Acme\Foo;

use Symfony\Component\HttpKernel\CacheWarmer\CacheWarmerInterface;

class FooCacheWarmer implements CacheWarmerInterface
{
    public function isOptional()
    {
        return false;
    }

    public function warmUp($cacheDir)
    { 
        // do the magic here.
    }
}

query.php

<?php

// $query = $this->createQueryBuilder ...
$query->useResultCache(true, $lifetime);
$query->useQueryCache();
// $products = $query->getResult(); 

service.yml

services:
    my_cache:
      class : Doctrine\Common\Cache\Apc

tracking.php

<?php

// $article is already managed or loaded  
// we are changing the Headline
$article->setHeadline('I love PUG Roma');
$em->flush();
echo $article->getHeadline();    // is ‘I love PUG Roma’ 

uow-1.php

<?php

$article = new Article();
$article->setHeadline('I love SymfonyDay');
$em->persist($article); // the entity is managed
$em->flush();           // the entity is persisted

$article->setHeadline('I love SymfonyDay portugal');
$em->persist($article); // don't needed is already managed
$em->flush(); // the Headline is updated on the persistence layer

uow-2.php

<?php


$article = $em->find(Article, 1234);
$article->setHeadline('I love SymfonyDay');

$article2 = $em->find(Article, 1234);
echo $article2->getHeadline(); // 'I love SymfonyDay' 

if ($article === $article2) ---> true!!