1 files changed, 83 insertions, 0 deletions

diff --git a/vendor/doctrine/orm/src/Utility/IdentifierFlattener.php b/vendor/doctrine/orm/src/Utility/IdentifierFlattener.php
new file mode 100644
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+++ b/vendor/doctrine/orm/src/Utility/IdentifierFlattener.php
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+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\ORM\Utility;
+
+use BackedEnum;
+use Doctrine\ORM\Mapping\ClassMetadata;
+use Doctrine\ORM\UnitOfWork;
+use Doctrine\Persistence\Mapping\ClassMetadataFactory;
+
+use function assert;
+use function implode;
+use function is_a;
+
+/**
+ * The IdentifierFlattener utility now houses some of the identifier manipulation logic from unit of work, so that it
+ * can be re-used elsewhere.
+ */
+final class IdentifierFlattener
+{
+    /**
+     * Initializes a new IdentifierFlattener instance, bound to the given EntityManager.
+     */
+    public function __construct(
+        /**
+         * The UnitOfWork used to coordinate object-level transactions.
+         */
+        private readonly UnitOfWork $unitOfWork,
+        /**
+         * The metadata factory, used to retrieve the ORM metadata of entity classes.
+         */
+        private readonly ClassMetadataFactory $metadataFactory,
+    ) {
+    }
+
+    /**
+     * convert foreign identifiers into scalar foreign key values to avoid object to string conversion failures.
+     *
+     * @param mixed[] $id
+     *
+     * @return mixed[]
+     * @psalm-return array<string, mixed>
+     */
+    public function flattenIdentifier(ClassMetadata $class, array $id): array
+    {
+        $flatId = [];
+
+        foreach ($class->identifier as $field) {
+            if (isset($class->associationMappings[$field]) && isset($id[$field]) && is_a($id[$field], $class->associationMappings[$field]->targetEntity)) {
+                $targetClassMetadata = $this->metadataFactory->getMetadataFor(
+                    $class->associationMappings[$field]->targetEntity,
+                );
+                assert($targetClassMetadata instanceof ClassMetadata);
+
+                if ($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(' ', $associatedId);
+            } elseif (isset($class->associationMappings[$field])) {
+                assert($class->associationMappings[$field]->isToOneOwningSide());
+                $associatedId = [];
+
+                foreach ($class->associationMappings[$field]->joinColumns as $joinColumn) {
+                    $associatedId[] = $id[$joinColumn->name];
+                }
+
+                $flatId[$field] = implode(' ', $associatedId);
+            } else {
+                if ($id[$field] instanceof BackedEnum) {
+                    $flatId[$field] = $id[$field]->value;
+                } else {
+                    $flatId[$field] = $id[$field];
+                }
+            }
+        }
+
+        return $flatId;
+    }
+}