/**
* {@inheritDoc}
*/
public function getReference($entityName, $id)
{
$class = $this->metadataFactory->getMetadataFor(ltrim($entityName, '\\'));
if (!is_array($id)) {
$id = array($class->identifier[0] => $id);
}
$sortedId = array();
foreach ($class->identifier as $identifier) {
if (!isset($id[$identifier])) {
throw ORMException::missingIdentifierField($class->name, $identifier);
}
$sortedId[$identifier] = $id[$identifier];
unset($id[$identifier]);
}
if ($id) {
throw ORMException::unrecognizedIdentifierFields($class->name, array_keys($id));
}
// Check identity map first, if its already in there just return it.
$flattenedId = $this->unitOfWork->flattenIdentifier($class, $sortedId);
if (($entity = $this->unitOfWork->tryGetById($flattenedId, $class->rootEntityName)) !== false) {
return $entity instanceof $class->name ? $entity : null;
}
if ($class->subClasses) {
return $this->find($entityName, $sortedId);
}
$entity = $this->proxyFactory->getProxy($class->name, $flattenedId);
$this->unitOfWork->registerManaged($entity, $flattenedId, array());
return $entity;
}
