JMSSerializer not serializing entity

Question

I am trying to get a serialized entity response using the JmsSerializerBUndle and the FOSRestBundle. unfortunatly i'm unable to do so because i'm having problems with the response.. i'm not sure the system recognizes the file Entity.SearchEngine.yml

Any Ideas how I could find why its not working?

#src\example\CoreBundle\Resources\config\serializer\Entity.SearchEngine.yml
Example\CoreBundle\Entity\SearchEngine:
  exclusion_policy: ALL
  properties:
             id:
                 expose: true
                 groups: [search.list,search.details]
             has_product_flight:
                 expose: true
                 groups: [search.details]
             selfLink:
               expose: true
               groups: [self.link]

Rest action (using the FOSRestBundle):

    /**
     * GET /search/engines
     *
     * @return array
     * @Rest\View(serializerGroups={"search.details", "self.link"})
     */
    public function getSearchEnginesAction()
    {
        $searchEngineManager = $this->get('search_manager');
        return $searchEngineManager->getSearchEngineList();
    }

the response im getting is { 0: { } }

Answer 1

First, is SerializerBundle configured correctly? You should supply config for paths to your .ymls and corresponding namespaces, like this:

jms_serializer:
    metadata:
        auto_detection: true
        directories:
            ExampleCoreBundle:
                namespace_prefix: "Example\\CoreBundle"
                path: "@ExampleCoreBundle/Resources/config/serializer/"

Be sure to check that your search.manager service returns instances of SearchEngine. Also, I'm not sure if dots are supported in group names.