/**
* {@inheritdoc}
*/
public function loadCacheEntry(ClassMetadata $metadata, EntityCacheKey $key, EntityCacheEntry $entry, $entity = null)
{
$data = $entry->data;
$hints = self::$hints;
if ($entity !== null) {
$hints[Query::HINT_REFRESH] = true;
$hints[Query::HINT_REFRESH_ENTITY] = $entity;
}
foreach ($metadata->associationMappings as $name => $assoc) {
if (!isset($assoc['cache']) || !isset($data[$name])) {
continue;
}
$assocClass = $data[$name]->class;
$assocId = $data[$name]->identifier;
$isEagerLoad = $assoc['fetch'] === ClassMetadata::FETCH_EAGER || $assoc['type'] === ClassMetadata::ONE_TO_ONE && !$assoc['isOwningSide'];
if (!$isEagerLoad) {
$data[$name] = $this->em->getReference($assocClass, $assocId);
continue;
}
$assocKey = new EntityCacheKey($assoc['targetEntity'], $assocId);
$assocPersister = $this->uow->getEntityPersister($assoc['targetEntity']);
$assocRegion = $assocPersister->getCacheRegion();
$assocEntry = $assocRegion->get($assocKey);
if ($assocEntry === null) {
return null;
}
$data[$name] = $this->uow->createEntity($assocEntry->class, $assocEntry->resolveAssociationEntries($this->em), $hints);
}
if ($entity !== null) {
$this->uow->registerManaged($entity, $key->identifier, $data);
}
$result = $this->uow->createEntity($entry->class, $data, $hints);
$this->uow->hydrationComplete();
return $result;
}
/**
* Gets a partial reference to the entity identified by the given type and identifier
* without actually loading it, if the entity is not yet loaded.
*
* The returned reference may be a partial object if the entity is not yet loaded/managed.
* If it is a partial object it will not initialize the rest of the entity state on access.
* Thus you can only ever safely access the identifier of an entity obtained through
* this method.
*
* The use-cases for partial references involve maintaining bidirectional associations
* without loading one side of the association or to update an entity without loading it.
* Note, however, that in the latter case the original (persistent) entity data will
* never be visible to the application (especially not event listeners) as it will
* never be loaded in the first place.
*
* @param string $entityName The name of the entity type.
* @param mixed $identifier The entity identifier.
* @return object The (partial) entity reference.
*/
public function getPartialReference($entityName, $identifier)
{
$class = $this->metadataFactory->getMetadataFor(ltrim($entityName, '\\'));
// Check identity map first, if its already in there just return it.
if ($entity = $this->unitOfWork->tryGetById($identifier, $class->rootEntityName)) {
return $entity instanceof $class->name ? $entity : null;
}
if (!is_array($identifier)) {
$identifier = array($class->identifier[0] => $identifier);
}
$entity = $class->newInstance();
$class->setIdentifierValues($entity, $identifier);
$this->unitOfWork->registerManaged($entity, $identifier, array());
$this->unitOfWork->markReadOnly($entity);
return $entity;
}
