Use custom predis or phpredis implementation

[AntoineDewaele]

Hello guys,

I've been dealing with an issue with the bundle configuration. I'm trying to implement a custom implementation of predis connection to override the replication strategy.

But i didn't find any way to use a custom connection through the bundle config. It only allows predis or phpredis type in extension :

  switch ($client['type']) {
      case 'predis':
          $this->loadPredisClient($client, $container);
          break;
      case 'phpredis':
          $this->loadPhpredisClient($client, $container);
          break;
      default:
          throw new \InvalidArgumentException(sprintf('The redis client type %s is invalid.', $client['type']));
          break;
  }

The only way i found to do this is to override the container after the bundle config file parsing with a compiler pass, but i find it more convenient to do this on the config file :

class SncRedisCompilerPass implements CompilerPassInterface
{
    public function process(ContainerBuilder $container)
    {
        $sncRedisDefinition = $container->getDefinition('snc_redis.session');
        $sncRedisDefinition->setClass('App\CustomRedisConnection');
        $container->setDefinition('snc_redis.session', $sncRedisDefinition);

        $sncRedisDefinition = $container->getDefinition('snc_redis.default');
        $sncRedisDefinition->setClass('App\CustomRedisConnection');
        $container->setDefinition('snc_redis.default', $sncRedisDefinition);
    }
}

Maybe with a new param in the config file ?

I can make a pull request for this, but i firstly wanted to know if i didn't miss something and if this is a good way for you.

Thanks.