fix(httpcache): only map entites that are persisted

Author: soyuka

src/Symfony/Bundle/Resources/config/doctrine_orm_http_cache_purger.xml

@@ -13,7 +13,7 @@
             <argument type="service" id="api_platform.iri_converter" />
             <argument type="service" id="api_platform.resource_class_resolver" />
             <argument type="service" id="api_platform.property_accessor" />
-            <argument type="service" id="object_mapper" on-invalid="null" />
+            <argument type="service" id="api_platform.object_mapper" on-invalid="null" />
             <tag name="doctrine.event_listener" event="preUpdate" />
             <tag name="doctrine.event_listener" event="onFlush" />
             <tag name="doctrine.event_listener" event="postFlush" />

src/Symfony/Doctrine/EventListener/PurgeHttpCacheListener.php

@@ -84,7 +84,14 @@ public function onFlush(OnFlushEventArgs $eventArgs): void
         $uow = $em->getUnitOfWork();
 
         foreach ($uow->getScheduledEntityInsertions() as $entity) {
-            $this->gatherResourceAndItemTags($entity, false);
+            // For new entities, only purge the collection IRI
+            try {
+                if ($this->resourceClassResolver->isResourceClass($this->getObjectClass($entity))) {
+                    $iri = $this->iriConverter->getIriFromResource($entity, UrlGeneratorInterface::ABS_PATH, new GetCollection());
+                    $this->tags[$iri] = $iri;
+                }
+            } catch (OperationNotFoundException|InvalidArgumentException) {
+            }
             $this->gatherRelationTags($em, $entity);
         }