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<?php
declare(strict_types=1);
namespace Doctrine\ORM\Id;
use Doctrine\ORM\EntityManagerInterface;
use Doctrine\ORM\Exception\EntityMissingAssignedId;
use function get_class;
/**
* Special generator for application-assigned identifiers (doesn't really generate anything).
*/
class AssignedGenerator extends AbstractIdGenerator
{
/**
* Returns the identifier assigned to the given entity.
*
* {@inheritdoc}
*
* @throws EntityMissingAssignedId
*/
public function generateId(EntityManagerInterface $em, $entity)
{
$class = $em->getClassMetadata(get_class($entity));
$idFields = $class->getIdentifierFieldNames();
$identifier = [];
foreach ($idFields as $idField) {
$value = $class->getFieldValue($entity, $idField);
if (! isset($value)) {
throw EntityMissingAssignedId::forField($entity, $idField);
}
if (isset($class->associationMappings[$idField])) {
// NOTE: Single Columns as associated identifiers only allowed - this constraint it is enforced.
$value = $em->getUnitOfWork()->getSingleIdentifierValue($value);
}
$identifier[$idField] = $value;
}
return $identifier;
}
}
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