/**
* @param array|mixed $id
*
* @return array
* @throws MappingException
*/
protected function fixScalarId($id, ApiMetadata $metadata)
{
if (is_array($id)) {
return $id;
}
$id = (array) $id;
$identifiers = $metadata->getIdentifierFieldNames();
if (count($id) !== count($identifiers)) {
throw MappingException::invalidIdentifierStructure();
}
return array_combine($identifiers, (array) $id);
}
/**
* convert foreign identifiers into scalar foreign key values to avoid object to string conversion failures.
*
* @param ApiMetadata $class
* @param array $id
*
* @return array
*/
public function flattenIdentifier(ApiMetadata $class, array $id)
{
$flatId = [];
foreach ($class->getIdentifierFieldNames() as $field) {
if ($class->hasAssociation($field) && array_key_exists($field, $id) && is_object($id[$field])) {
/* @var EntityMetadata $targetClassMetadata */
$targetClassMetadata = $this->manager->getClassMetadata($class->getAssociationMapping($field)['target']);
if ($this->unitOfWork->isInIdentityMap($id[$field])) {
$associatedId = $this->flattenIdentifier($targetClassMetadata, $this->unitOfWork->getEntityIdentifier($id[$field]));
} else {
$associatedId = $this->flattenIdentifier($targetClassMetadata, $targetClassMetadata->getIdentifierValues($id[$field]));
}
$flatId[$field] = implode(' ', $associatedId);
} else {
$flatId[$field] = $id[$field];
}
}
return $flatId;
}
