The links are lost when the serialization groups are used

[Guillaume Doury]

The links are lost when the serialization groups are used :

    /**
     * @FOSRest\View(serializerGroups={"default"})
     */
    public function cgetAction(){

        /** @var Product[] $products */
        $products = $this->get("api_product.product_service")->getAll();

        return $products;
    }

The links are lost due to the ExclusionManager which skip these links, the workaround which works in my projetc is to not skip these relations when exclusion is nullable

// \Hateoas\Serializer\ExclusionManager.php

    private function shouldSkip($object, Exclusion $exclusion = null, SerializationContext $context)
    {
        // Do not skip links when exclusion is null
        if (is_null($exclusion)) {
            return false;
        }

        if (null !== $exclusion
            && null !== $exclusion->getExcludeIf()
            && $this->expressionEvaluator->evaluate($exclusion->getExcludeIf(), $object)
        ) {
            return true;
        }

        if (!$context->getExclusionStrategy()) {
            return false;
        }

        $propertyMetadata = new RelationPropertyMetadata($exclusion);

        return $context->getExclusionStrategy()->shouldSkipProperty($propertyMetadata, $context);
    }

But I do not have enough global understanding to know if it's a good or a bad workaround. Do you have any idea how this problem can be resolved properly ?

[Florent SCHILDKNECHT]

Just had the same problem with Symfony2 bundle,
But without using FosRESTBundle.

I just forgot to set up the exclusion property...

use Hateoas\Configuration\Annotation as Hateoas;

/**
 * @Hateoas\Relation(
 *      "get",
 *      href = @Hateoas\Route(
 *          "any_route_name",
 *          parameters = {
 *              "id" = "expr(object.getId())"
 *          }
 *      ),
 *      exclusion = @Hateoas\Exclusion(groups = {"list", "detail"})
 *  )
 */
class AnyEntity
{
}

Now, this relation will be serialized for the groups "list" and "detail".
(Not sure about this, but is it the behaviour we expect from an exclusion policy ?)

[Guillaume Doury]

Great, indeed, it makes sense, i missed this part, thanks.