Copy internal SQLResultCasing from ORM

src/AuditReader.php

@@ -18,7 +18,6 @@
 use Doctrine\DBAL\Platforms\AbstractPlatform;
 use Doctrine\DBAL\Types\Type;
 use Doctrine\ORM\EntityManagerInterface;
-use Doctrine\ORM\Internal\SQLResultCasing;
 use Doctrine\ORM\Mapping\ClassMetadata;
 use Doctrine\ORM\Mapping\QuoteStrategy;
 use Doctrine\ORM\ORMException;
@@ -31,6 +30,7 @@
 use SimpleThings\EntityAudit\Exception\NotAuditedException;
 use SimpleThings\EntityAudit\Metadata\MetadataFactory;
 use SimpleThings\EntityAudit\Utils\ArrayDiff;
+use SimpleThings\EntityAudit\Utils\SQLResultCasing;
 
 /**
  * @phpstan-template T of object

src/Utils/SQLResultCasing.php

@@ -0,0 +1,46 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of the Sonata Project package.
+ *
+ * (c) Thomas Rabaix <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace SimpleThings\EntityAudit\Utils;
+
+use Doctrine\DBAL\Platforms\AbstractPlatform;
+use Doctrine\DBAL\Platforms\DB2Platform;
+use Doctrine\DBAL\Platforms\OraclePlatform;
+use Doctrine\DBAL\Platforms\PostgreSQLPlatform;
+
+/**
+ * This trait is a copy of \Doctrine\ORM\Internal\SQLResultCasing.
+ *
+ * @see https://github.com/doctrine/orm/blob/8f7701279de84411020304f668cc8b49a5afbf5a/lib/Doctrine/ORM/Internal/SQLResultCasing.php
+ *
+ * @internal
+ */
+trait SQLResultCasing
+{
+    private function getSQLResultCasing(AbstractPlatform $platform, string $column): string
+    {
+        if ($platform instanceof DB2Platform || $platform instanceof OraclePlatform) {
+            return strtoupper($column);
+        }
+
+        if ($platform instanceof PostgreSQLPlatform) {
+            return strtolower($column);
+        }
+
+        if (method_exists($platform, 'getSQLResultCasing')) {
+            return $platform->getSQLResultCasing($column);
+        }
+
+        return $column;
+    }
+}