From 4e974c5e647b8a56652af87581d022d66e340772 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bart=C5=82omiej=20Nowak?= <bartlomiej.nowak@ibexa.co>
Date: Mon, 29 Jun 2026 11:34:05 +0200
Subject: [PATCH 1/3] Added ContentTypeOwnedBySomeoneElseException for content
 type draft owned by another user

---
 ...ContentTypeOwnedBySomeoneElseException.php | 23 +++++++++++++++++++
 src/lib/Repository/ContentTypeService.php     |  5 ++--
 2 files changed, 25 insertions(+), 3 deletions(-)
 create mode 100644 src/lib/Repository/ContentType/Exception/ContentTypeOwnedBySomeoneElseException.php

diff --git a/src/lib/Repository/ContentType/Exception/ContentTypeOwnedBySomeoneElseException.php b/src/lib/Repository/ContentType/Exception/ContentTypeOwnedBySomeoneElseException.php
new file mode 100644
index 0000000000..cf8fd58d6f
--- /dev/null
+++ b/src/lib/Repository/ContentType/Exception/ContentTypeOwnedBySomeoneElseException.php
@@ -0,0 +1,23 @@
+<?php
+
+/**
+ * @copyright Copyright (C) Ibexa AS. All rights reserved.
+ * @license For full copyright and license information view LICENSE file distributed with this source code.
+ */
+declare(strict_types=1);
+
+namespace Ibexa\Core\Repository\ContentType\Exception;
+
+use Ibexa\Core\Base\Exceptions\NotFoundException;
+use Throwable;
+
+/**
+ * Exception thrown when a Content Type draft is owned by a different user than the current one.
+ */
+final class ContentTypeOwnedBySomeoneElseException extends NotFoundException
+{
+    public function __construct(int $contentTypeId, ?Throwable $previous = null)
+    {
+        parent::__construct('The content type is owned by someone else', $contentTypeId, $previous);
+    }
+}
diff --git a/src/lib/Repository/ContentTypeService.php b/src/lib/Repository/ContentTypeService.php
index 562612e68e..cff3111342 100644
--- a/src/lib/Repository/ContentTypeService.php
+++ b/src/lib/Repository/ContentTypeService.php
@@ -45,6 +45,7 @@
 use Ibexa\Core\Base\Exceptions\UnauthorizedException;
 use Ibexa\Core\FieldType\FieldTypeRegistry;
 use Ibexa\Core\FieldType\ValidationError;
+use Ibexa\Core\Repository\ContentType\Exception\ContentTypeOwnedBySomeoneElseException;
 use Ibexa\Core\Repository\Values\ContentType\ContentTypeCreateStruct;
 use Ibexa\Core\Repository\Values\ContentType\ContentTypeGroup;
 
@@ -767,8 +768,6 @@ public function loadContentTypeByRemoteId(string $remoteId, array $prioritizedLa
      * @param int $contentTypeId
      * @param bool $ignoreOwnership if true, method will return draft even if the owner is different than currently logged in user
      *
-     * @todo Use another exception when user of draft is someone else
-     *
      * @return \Ibexa\Contracts\Core\Repository\Values\ContentType\ContentTypeDraft
      */
     public function loadContentTypeDraft(int $contentTypeId, bool $ignoreOwnership = false): APIContentTypeDraft
@@ -779,7 +778,7 @@ public function loadContentTypeDraft(int $contentTypeId, bool $ignoreOwnership =
         );
 
         if (!$ignoreOwnership && $spiContentType->modifierId != $this->permissionResolver->getCurrentUserReference()->getUserId()) {
-            throw new NotFoundException('The content type is owned by someone else', $contentTypeId);
+            throw new ContentTypeOwnedBySomeoneElseException($contentTypeId);
         }
 
         return $this->contentTypeDomainMapper->buildContentTypeDraftDomainObject($spiContentType);

From 951f1ca5d93467d22d90a63e2317b28f89206a73 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bart=C5=82omiej=20Nowak?= <bartlomiej.nowak@ibexa.co>
Date: Mon, 29 Jun 2026 11:38:22 +0200
Subject: [PATCH 2/3] Removed not needed exception description

---
 .../Exception/ContentTypeOwnedBySomeoneElseException.php       | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/src/lib/Repository/ContentType/Exception/ContentTypeOwnedBySomeoneElseException.php b/src/lib/Repository/ContentType/Exception/ContentTypeOwnedBySomeoneElseException.php
index cf8fd58d6f..941213087e 100644
--- a/src/lib/Repository/ContentType/Exception/ContentTypeOwnedBySomeoneElseException.php
+++ b/src/lib/Repository/ContentType/Exception/ContentTypeOwnedBySomeoneElseException.php
@@ -11,9 +11,6 @@
 use Ibexa\Core\Base\Exceptions\NotFoundException;
 use Throwable;
 
-/**
- * Exception thrown when a Content Type draft is owned by a different user than the current one.
- */
 final class ContentTypeOwnedBySomeoneElseException extends NotFoundException
 {
     public function __construct(int $contentTypeId, ?Throwable $previous = null)

From f330a79c3cfba182e5228f6db8cfc30cb0afa1f6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bart=C5=82omiej=20Nowak?= <bartlomiej.nowak@ibexa.co>
Date: Tue, 30 Jun 2026 10:53:02 +0200
Subject: [PATCH 3/3] Added exception contract

---
 .../ContentTypeOwnedBySomeoneElseException.php      | 13 +++++++++++++
 .../ContentTypeOwnedBySomeoneElseException.php      |  6 +++---
 src/lib/Repository/ContentTypeService.php           |  2 +-
 3 files changed, 17 insertions(+), 4 deletions(-)
 create mode 100644 src/contracts/Repository/Exceptions/ContentTypeOwnedBySomeoneElseException.php
 rename src/lib/{Repository/ContentType/Exception => Base/Exceptions}/ContentTypeOwnedBySomeoneElseException.php (67%)

diff --git a/src/contracts/Repository/Exceptions/ContentTypeOwnedBySomeoneElseException.php b/src/contracts/Repository/Exceptions/ContentTypeOwnedBySomeoneElseException.php
new file mode 100644
index 0000000000..84e4abeae7
--- /dev/null
+++ b/src/contracts/Repository/Exceptions/ContentTypeOwnedBySomeoneElseException.php
@@ -0,0 +1,13 @@
+<?php
+
+/**
+ * @copyright Copyright (C) Ibexa AS. All rights reserved.
+ * @license For full copyright and license information view LICENSE file distributed with this source code.
+ */
+declare(strict_types=1);
+
+namespace Ibexa\Contracts\Core\Repository\Exceptions;
+
+interface ContentTypeOwnedBySomeoneElseException extends Exception
+{
+}
diff --git a/src/lib/Repository/ContentType/Exception/ContentTypeOwnedBySomeoneElseException.php b/src/lib/Base/Exceptions/ContentTypeOwnedBySomeoneElseException.php
similarity index 67%
rename from src/lib/Repository/ContentType/Exception/ContentTypeOwnedBySomeoneElseException.php
rename to src/lib/Base/Exceptions/ContentTypeOwnedBySomeoneElseException.php
index 941213087e..f2c3207ca7 100644
--- a/src/lib/Repository/ContentType/Exception/ContentTypeOwnedBySomeoneElseException.php
+++ b/src/lib/Base/Exceptions/ContentTypeOwnedBySomeoneElseException.php
@@ -6,12 +6,12 @@
  */
 declare(strict_types=1);
 
-namespace Ibexa\Core\Repository\ContentType\Exception;
+namespace Ibexa\Core\Base\Exceptions;
 
-use Ibexa\Core\Base\Exceptions\NotFoundException;
+use Ibexa\Contracts\Core\Repository\Exceptions\ContentTypeOwnedBySomeoneElseException as APIContentTypeOwnedBySomeoneElseException;
 use Throwable;
 
-final class ContentTypeOwnedBySomeoneElseException extends NotFoundException
+final class ContentTypeOwnedBySomeoneElseException extends NotFoundException implements APIContentTypeOwnedBySomeoneElseException
 {
     public function __construct(int $contentTypeId, ?Throwable $previous = null)
     {
diff --git a/src/lib/Repository/ContentTypeService.php b/src/lib/Repository/ContentTypeService.php
index cff3111342..1909e7d441 100644
--- a/src/lib/Repository/ContentTypeService.php
+++ b/src/lib/Repository/ContentTypeService.php
@@ -37,6 +37,7 @@
 use Ibexa\Contracts\Core\Repository\Values\User\User;
 use Ibexa\Core\Base\Exceptions\BadStateException;
 use Ibexa\Core\Base\Exceptions\ContentTypeFieldDefinitionValidationException;
+use Ibexa\Core\Base\Exceptions\ContentTypeOwnedBySomeoneElseException;
 use Ibexa\Core\Base\Exceptions\ContentTypeValidationException;
 use Ibexa\Core\Base\Exceptions\InvalidArgumentException;
 use Ibexa\Core\Base\Exceptions\InvalidArgumentType;
@@ -45,7 +46,6 @@
 use Ibexa\Core\Base\Exceptions\UnauthorizedException;
 use Ibexa\Core\FieldType\FieldTypeRegistry;
 use Ibexa\Core\FieldType\ValidationError;
-use Ibexa\Core\Repository\ContentType\Exception\ContentTypeOwnedBySomeoneElseException;
 use Ibexa\Core\Repository\Values\ContentType\ContentTypeCreateStruct;
 use Ibexa\Core\Repository\Values\ContentType\ContentTypeGroup;