[GH-11185] Bugfix: do not use collection batch loading for indexBy as…

…socations. (#11380)

src/UnitOfWork.php

@@ -3166,7 +3166,7 @@ public function createEntity($className, array $data, &$hints = [])
 
                     if ($hints['fetchMode'][$class->name][$field] === ClassMetadata::FETCH_EAGER) {
                         $isIteration = isset($hints[Query::HINT_INTERNAL_ITERATION]) && $hints[Query::HINT_INTERNAL_ITERATION];
-                        if ($assoc['type'] === ClassMetadata::ONE_TO_MANY && ! $isIteration && ! $targetClass->isIdentifierComposite) {
+                        if ($assoc['type'] === ClassMetadata::ONE_TO_MANY && ! $isIteration && ! $targetClass->isIdentifierComposite && ! isset($assoc['indexBy'])) {
                             $this->scheduleCollectionForBatchLoading($pColl, $class);
                         } else {
                             $this->loadCollection($pColl);

tests/Tests/ORM/Functional/Ticket/GH11149/EagerProduct.php

@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\ORM\Functional\Ticket\GH11149;
+
+use Doctrine\Common\Collections\ArrayCollection;
+use Doctrine\ORM\Mapping as ORM;
+
+/**
+ * @ORM\Entity
+ * @ORM\Table("gh11149_eager_product")
+ */
+class EagerProduct
+{
+    /**
+     * @ORM\Id
+     * @ORM\Column(type="integer")
+     *
+     * @var int
+     */
+    public $id;
+
+    /**
+     * @ORM\OneToMany(
+     *     targetEntity=EagerProductTranslation::class,
+     *     mappedBy="product",
+     *     fetch="EAGER",
+     *     indexBy="locale_code"
+     * )
+     *
+     * @var Collection<string, EagerProductTranslation>
+     */
+    public $translations;
+
+    public function __construct(int $id)
+    {
+        $this->id           = $id;
+        $this->translations = new ArrayCollection();
+    }
+}

tests/Tests/ORM/Functional/Ticket/GH11149/EagerProductTranslation.php

@@ -0,0 +1,45 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\ORM\Functional\Ticket\GH11149;
+
+use Doctrine\ORM\Mapping as ORM;
+
+/**
+ * @ORM\Entity
+ * @ORM\Table("gh11149_eager_product_translation")
+ */
+class EagerProductTranslation
+{
+    /**
+     * @ORM\Id
+     * @ORM\Column(type="integer")
+     *
+     * @var int
+     */
+    private $id;
+
+    /**
+     * @ORM\ManyToOne(targetEntity=EagerProduct::class, inversedBy="translations")
+     * @ORM\JoinColumn(nullable=false)
+     *
+     * @var EagerProduct
+     */
+    public $product;
+
+    /**
+     * @ORM\ManyToOne(targetEntity=Locale::class)
+     * @ORM\JoinColumn(name="locale_code", referencedColumnName="code", nullable=false)
+     *
+     * @var Locale
+     */
+    public $locale;
+
+    public function __construct($id, EagerProduct $product, Locale $locale)
+    {
+        $this->id      = $id;
+        $this->product = $product;
+        $this->locale  = $locale;
+    }
+}

tests/Tests/ORM/Functional/Ticket/GH11149/GH11149Test.php

@@ -0,0 +1,47 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\ORM\Functional\Ticket\GH11149;
+
+use Doctrine\ORM\PersistentCollection;
+use Doctrine\Persistence\Proxy;
+use Doctrine\Tests\OrmFunctionalTestCase;
+
+class GH11149Test extends OrmFunctionalTestCase
+{
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->setUpEntitySchema([
+            Locale::class,
+            EagerProduct::class,
+            EagerProductTranslation::class,
+        ]);
+    }
+
+    public function testFetchEagerModeWithIndexBy(): void
+    {
+        // Load entities into database
+        $this->_em->persist($product = new EagerProduct(11149));
+        $this->_em->persist($locale = new Locale('fr_FR'));
+        $this->_em->persist(new EagerProductTranslation(11149, $product, $locale));
+        $this->_em->flush();
+        $this->_em->clear();
+
+        // Fetch entity from database
+        $product = $this->_em->find(EagerProduct::class, 11149);
+
+        // Assert associated entity is loaded eagerly
+        static::assertInstanceOf(EagerProduct::class, $product);
+        static::assertInstanceOf(PersistentCollection::class, $product->translations);
+        static::assertTrue($product->translations->isInitialized());
+        static::assertCount(1, $product->translations);
+
+        // Assert associated entity is indexed by given property
+        $translation = $product->translations->get('fr_FR');
+        static::assertInstanceOf(EagerProductTranslation::class, $translation);
+        static::assertNotInstanceOf(Proxy::class, $translation);
+    }
+}

tests/Tests/ORM/Functional/Ticket/GH11149/Locale.php

@@ -0,0 +1,27 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\Tests\ORM\Functional\Ticket\GH11149;
+
+use Doctrine\ORM\Mapping as ORM;
+
+/**
+ * @ORM\Entity
+ * @ORM\Table("gh11149_locale")
+ */
+class Locale
+{
+    /**
+     * @ORM\Id
+     * @ORM\Column(type="string")
+     *
+     * @var string
+     */
+    public $code;
+
+    public function __construct(string $code)
+    {
+        $this->code = $code;
+    }
+}