private function getResourceLinks(EntityResource $resource)
{
$links = [];
foreach ($this->resource->getMetadata()->relationships->toOne as $relationship => $relation) {
$entity = $this->resource->callGetter($relationship);
EntityResource::validateToOneRelation($entity, $relationship);
$links[$relationship] = $this->securityContext->isGranted(static::ACCESS_VIEW, $entity) ? EntityResource::getStringId($entity) : NULL;
}
foreach ($this->resource->getMetadata()->relationships->toMany as $relationship => $relation) {
$collection = $this->resource->callGetter($relationship);
$collection = EntityResource::normalizeToManyRelation($collection, $relationship);
$links[$relationship] = [];
foreach ($collection as $entity) {
if (!$this->securityContext->isGranted(static::ACCESS_VIEW, $entity)) {
continue;
}
$links[$relationship][] = EntityResource::getStringId($entity);
}
}
return $links;
}
/**
* @param ResourceCollectionInterface $resources
* @param $relationshipName
* @param LinkedResourcesSerialization $resourcesSerialization
* @param array &$linkedResources
*/
private function processToOneRelationship(ResourceCollectionInterface $resources, $relationshipName, array &$linkedResources, LinkedResourcesSerialization $resourcesSerialization)
{
foreach ($resources as $resource) {
if ($resource->isRelationshipBlacklisted($relationshipName)) {
$message = sprintf(self::ERROR_UNKOWN_RELATIONSHIP, $relationshipName);
throw new InvalidRelationshipException($message);
}
$relationship = $resource->getMetadata()->relationships->toOne[$relationshipName];
// @todo Refactorizar; la siguiente línea es un hack.
$entity = $resource->callGetter($relationshipName);
EntityResource::validateToOneRelation($entity, $relationshipName);
if (is_null($entity)) {
continue;
}
$this->addLinkedResource($relationship, $entity, $resourcesSerialization);
$linkedResource = $resourcesSerialization->getLinkedResource($relationship->type, EntityResource::getStringId($entity));
if (!empty($linkedResource)) {
$linkedResources[] = $linkedResource;
}
}
}
