From 15ad85de6fe57f786c455fc3dfc6f42762f93106 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20=C3=81ngel=20Parada?=
 <joseangel.parada@elespanol.com>
Date: Fri, 10 Jan 2025 13:19:10 +0100
Subject: [PATCH] Fix discriminatorValue 0

---
 .../Mapping/Annotations/DiscriminatorMap.php  |  2 +-
 .../MongoDB/Persisters/DocumentPersister.php  |  2 +-
 .../Tests/Functional/Ticket/GH2158Test.php    | 46 +++++++++++++++++++
 3 files changed, 48 insertions(+), 2 deletions(-)
 create mode 100644 tests/Doctrine/ODM/MongoDB/Tests/Functional/Ticket/GH2158Test.php

diff --git a/lib/Doctrine/ODM/MongoDB/Mapping/Annotations/DiscriminatorMap.php b/lib/Doctrine/ODM/MongoDB/Mapping/Annotations/DiscriminatorMap.php
index cd1131a25d..46947e8952 100644
--- a/lib/Doctrine/ODM/MongoDB/Mapping/Annotations/DiscriminatorMap.php
+++ b/lib/Doctrine/ODM/MongoDB/Mapping/Annotations/DiscriminatorMap.php
@@ -16,7 +16,7 @@
 #[Attribute(Attribute::TARGET_CLASS | Attribute::TARGET_PROPERTY)]
 final class DiscriminatorMap implements Annotation
 {
-    /** @var array<string, class-string> */
+    /** @var array<class-string> */
     public $value;
 
     /** @param array<string, class-string> $value */
diff --git a/lib/Doctrine/ODM/MongoDB/Persisters/DocumentPersister.php b/lib/Doctrine/ODM/MongoDB/Persisters/DocumentPersister.php
index 780c0c6004..061b0c9da0 100644
--- a/lib/Doctrine/ODM/MongoDB/Persisters/DocumentPersister.php
+++ b/lib/Doctrine/ODM/MongoDB/Persisters/DocumentPersister.php
@@ -1470,7 +1470,7 @@ private function getClassDiscriminatorValues(ClassMetadata $metadata): array
 
         foreach ($metadata->subClasses as $className) {
             $key = array_search($className, $metadata->discriminatorMap);
-            if (! $key) {
+            if ($key === false) {
                 continue;
             }
 
diff --git a/tests/Doctrine/ODM/MongoDB/Tests/Functional/Ticket/GH2158Test.php b/tests/Doctrine/ODM/MongoDB/Tests/Functional/Ticket/GH2158Test.php
new file mode 100644
index 0000000000..f01456ce21
--- /dev/null
+++ b/tests/Doctrine/ODM/MongoDB/Tests/Functional/Ticket/GH2158Test.php
@@ -0,0 +1,46 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\ODM\MongoDB\Tests\Functional\Ticket;
+
+use Doctrine\ODM\MongoDB\Mapping\Annotations as ODM;
+use Doctrine\ODM\MongoDB\Tests\BaseTestCase;
+
+class GH2158Test extends BaseTestCase
+{
+    public function testDiscriminatorMapCreationType(): void
+    {
+        $obj = new GH2158FirstType();
+        $this->dm->persist($obj);
+        $this->dm->flush();
+
+        self::assertEquals($this->dm->find(GH2158Abstract::class, $obj->getId()), $obj);
+    }
+}
+
+#[ODM\Document(collection: 'documents')]
+#[ODM\InheritanceType('SINGLE_COLLECTION')]
+#[ODM\DiscriminatorField('type')]
+#[ODM\DiscriminatorMap([0 => GH2158FirstType::class, 1 => GH2158SecondType::class])]
+abstract class GH2158Abstract
+{
+    /** @var string */
+    #[ODM\Id]
+    protected $id;
+
+    public function getId(): string
+    {
+        return $this->id;
+    }
+}
+
+#[ODM\Document]
+class GH2158FirstType extends GH2158Abstract
+{
+}
+
+#[ODM\Document]
+class GH2158SecondType extends GH2158Abstract
+{
+}