Fix/missing error normalizer trait

src/JsonApi/Serializer/ErrorNormalizer.php

@@ -13,7 +13,6 @@
 
 namespace ApiPlatform\JsonApi\Serializer;
 
-use ApiPlatform\Problem\Serializer\ErrorNormalizerTrait;
 use ApiPlatform\Serializer\CacheableSupportsMethodInterface;
 use ApiPlatform\Symfony\Validator\Exception\ConstraintViolationListAwareExceptionInterface as LegacyConstraintViolationListAwareExceptionInterface;
 use ApiPlatform\Validator\Exception\ConstraintViolationListAwareExceptionInterface;

src/JsonApi/Serializer/ErrorNormalizerTrait.php

@@ -0,0 +1,53 @@
+<?php
+
+/*
+ * This file is part of the API Platform project.
+ *
+ * (c) Kévin Dunglas <dunglas@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace ApiPlatform\JsonApi\Serializer;
+
+use Symfony\Component\ErrorHandler\Exception\FlattenException;
+use Symfony\Component\HttpFoundation\Response;
+
+trait ErrorNormalizerTrait
+{
+ private function getErrorMessage($object, array $context, bool $debug = false): string
+ {
+ $message = $object->getMessage();
+
+ if ($debug) {
+ return $message;
+ }
+
+ if ($object instanceof FlattenException) {
+ $statusCode = $context['statusCode'] ?? $object->getStatusCode();
+ if ($statusCode >= 500 && $statusCode < 600) {
+ $message = Response::$statusTexts[$statusCode] ?? Response::$statusTexts[Response::HTTP_INTERNAL_SERVER_ERROR];
+ }
+ }
+
+ return $message;
+ }
+
+ private function getErrorCode(object $object): ?string
+ {
+ if ($object instanceof FlattenException) {
+ return (string)$object->getStatusCode();
+ }
+
+ if ($object instanceof \Exception) {
+ $code = $object->getCode();
+ return $code !== 0 ? (string)$code : null;
+ }
+
+ return null;
+ }
+}
+