Fix enum change set recomputation on single entity

Author: rmikalkenas

lib/Doctrine/ORM/UnitOfWork.php

@@ -1124,6 +1124,20 @@ public function recomputeSingleEntityChangeSet(ClassMetadata $class, $entity)
         foreach ($actualData as $propName => $actualValue) {
             $orgValue = $originalData[$propName] ?? null;
 
+            if (! empty($class->fieldMappings[$propName]['enumType'])) {
+                if (is_array($orgValue)) {
+                    foreach ($orgValue as $id => $val) {
+                        if ($val instanceof BackedEnum) {
+                            $orgValue[$id] = $val->value;
+                        }
+                    }
+                } else {
+                    if ($orgValue instanceof BackedEnum) {
+                        $orgValue = $orgValue->value;
+                    }
+                }
+            }
+
             if ($orgValue !== $actualValue) {
                 $changeSet[$propName] = [$orgValue, $actualValue];
             }

tests/Doctrine/Tests/ORM/Functional/EnumTest.php

@@ -260,6 +260,86 @@ public function testEnumArrayInDtoHydration(): void
         self::assertEqualsCanonicalizing([Unit::Gram, Unit::Meter], $result[0]->supportedUnits);
     }
 
+    public function testEnumSingleEntityChangeSetsSimpleObjectHydrator(): void
+    {
+        $this->setUpEntitySchema([Card::class]);
+
+        $card       = new Card();
+        $card->suit = Suit::Clubs;
+
+        $this->_em->persist($card);
+        $this->_em->flush();
+        $this->_em->clear();
+
+        $result = $this->_em->find(Card::class, $card->id);
+
+        $this->_em->getUnitOfWork()->recomputeSingleEntityChangeSet(
+            $this->_em->getClassMetadata(Card::class),
+            $result
+        );
+
+        self::assertFalse($this->_em->getUnitOfWork()->isScheduledForUpdate($result));
+
+        $result->suit = Suit::Hearts;
+
+        $this->_em->getUnitOfWork()->recomputeSingleEntityChangeSet(
+            $this->_em->getClassMetadata(Card::class),
+            $result
+        );
+
+        self::assertTrue($this->_em->getUnitOfWork()->isScheduledForUpdate($result));
+    }
+
+    public function testEnumSingleEntityChangeSetsObjectHydrator(): void
+    {
+        $this->setUpEntitySchema([Card::class]);
+
+        $card       = new Card();
+        $card->suit = Suit::Clubs;
+
+        $this->_em->persist($card);
+        $this->_em->flush();
+        $this->_em->clear();
+
+        $result = $this->_em->createQueryBuilder()
+            ->from(Card::class, 'c')
+            ->select('c')
+            ->getQuery()
+            ->getResult();
+
+        $this->_em->getUnitOfWork()->recomputeSingleEntityChangeSet(
+            $this->_em->getClassMetadata(Card::class),
+            $result[0]
+        );
+
+        self::assertFalse($this->_em->getUnitOfWork()->isScheduledForUpdate($result[0]));
+    }
+
+    public function testEnumArraySingeEntityChangeSets(): void
+    {
+        $this->setUpEntitySchema([Scale::class]);
+
+        $scale                 = new Scale();
+        $scale->supportedUnits = [Unit::Gram];
+
+        $this->_em->persist($scale);
+        $this->_em->flush();
+        $this->_em->clear();
+
+        $result = $this->_em->createQueryBuilder()
+            ->from(Scale::class, 's')
+            ->select('s')
+            ->getQuery()
+            ->getResult();
+
+        $this->_em->getUnitOfWork()->recomputeSingleEntityChangeSet(
+            $this->_em->getClassMetadata(Card::class),
+            $result[0]
+        );
+
+        self::assertFalse($this->_em->getUnitOfWork()->isScheduledForUpdate($result[0]));
+    }
+
     public function testEnumChangeSetsSimpleObjectHydrator(): void
     {
         $this->setUpEntitySchema([Card::class]);