/**
* Returns a string representation of the identifier of a given entity.
*
* @param mixed $entity
* @param EntityMetadata $metadata
*
* @return string
*/
public function getEntityId($entity, EntityMetadata $metadata)
{
$result = null;
$idFieldNames = $metadata->getIdentifierFieldNames();
$idFieldNamesCount = count($idFieldNames);
if ($idFieldNamesCount === 1) {
$fieldName = reset($idFieldNames);
if (!$this->objectAccessor->hasProperty($entity, $fieldName)) {
throw new \RuntimeException(sprintf('An object of the type "%s" does not have the identifier property "%s".', $metadata->getClassName(), $fieldName));
}
$result = $this->entityIdTransformer->transform($this->objectAccessor->getValue($entity, $fieldName));
} elseif ($idFieldNamesCount > 1) {
$id = [];
foreach ($idFieldNames as $fieldName) {
if (!$this->objectAccessor->hasProperty($entity, $fieldName)) {
throw new \RuntimeException(sprintf('An object of the type "%s" does not have the identifier property "%s".', $metadata->getClassName(), $fieldName));
}
$id[$fieldName] = $this->objectAccessor->getValue($entity, $fieldName);
}
$result = $this->entityIdTransformer->transform($id);
} else {
throw new \RuntimeException(sprintf('The "%s" entity does not have an identifier.', $metadata->getClassName()));
}
if (empty($result)) {
throw new \RuntimeException(sprintf('The identifier value for "%s" entity must not be empty.', $metadata->getClassName()));
}
return $result;
}
/**
* {@inheritdoc}
*/
public function process(ContextInterface $context)
{
/** @var SingleItemContext $context */
$entityId = $context->getId();
if (!is_string($entityId)) {
// an entity identifier is already normalized
return;
}
$context->setId($this->entityIdTransformer->reverseTransform($context->getClassName(), $entityId));
}
/**
* @param mixed $object
* @param AssociationMetadata $associationMetadata
*
* @return array The resource identifier
*/
protected function processRelatedObject($object, AssociationMetadata $associationMetadata)
{
$targetMetadata = $associationMetadata->getTargetMetadata();
$preparedValue = $this->prepareRelatedValue($object, $associationMetadata->getTargetClassName(), $targetMetadata);
if ($preparedValue['idOnly']) {
$resourceId = $this->getResourceIdObject($preparedValue['entityType'], $this->entityIdTransformer->transform($preparedValue['value']));
} else {
$resourceId = $this->getResourceIdObject($preparedValue['entityType'], $this->entityIdAccessor->getEntityId($preparedValue['value'], $targetMetadata));
$this->addRelatedObject($preparedValue['value'], $targetMetadata);
}
return $resourceId;
}
