Added prebuild event for extending possibilities to hook into graphql queries

src/Event/GraphQL/ListingEvents.php

@@ -14,6 +14,13 @@
 
 final class ListingEvents
 {
+    /**
+     * @Event("Symfony\Component\EventDispatcher\GenericEvent")
+     *
+     * @var string
+     */
+    const PRE_BUILD = 'pimcore.datahub.graphql.listing.preBuild';
+
     /**
      * @Event("Pimcore\Bundle\DataHubBundle\Event\GraphQL\Model\ListingEvent")
      *

src/GraphQL/Resolver/QueryType.php

@@ -370,6 +370,12 @@
             $this->getGraphQlService()->getLocaleService()->setLocale($args['defaultLanguage']);
         }
 
+        $event = new GenericEvent(
+            arguments: $args,
+        );
+
+        $this->eventDispatcher->dispatch($event, ListingEvents::PRE_BUILD);
+
         $modelFactory = $this->getGraphQlService()->getModelFactory();
         $listClass = 'Pimcore\\Model\\DataObject\\' . ucfirst($this->class->getName()) . '\\Listing';
         /** @var Listing\Concrete $objectList */