Fix PHP error

src/CoreBundle/Entity/Listener/ResourceListener.php

@@ -166,18 +166,21 @@ class ResourceListener
 
         // Last chance check parentResourceNodeId from request.
         if (null !== $request && null === $parentNode) {
-            $resourceNodeIdFromRequest = $request->getCurrentRequest()->get('parentResourceNodeId');
-            if (empty($resourceNodeIdFromRequest)) {
-                $contentData = $request->getCurrentRequest()->getContent();
-                $contentData = json_decode($contentData, true);
-                $resourceNodeIdFromRequest = $contentData['parentResourceNodeId'] ?? '';
-            }
+            $currentRequest = $request->getCurrentRequest();
+            if (null !== $currentRequest) {
+                $resourceNodeIdFromRequest = $currentRequest->get('parentResourceNodeId');
+                if (empty($resourceNodeIdFromRequest)) {
+                    $contentData = $request->getCurrentRequest()->getContent();
+                    $contentData = json_decode($contentData, true);
+                    $resourceNodeIdFromRequest = $contentData['parentResourceNodeId'] ?? '';
+                }
 
-            if (!empty($resourceNodeIdFromRequest)) {
-                $nodeRepo = $em->getRepository(ResourceNode::class);
-                $parent = $nodeRepo->find($resourceNodeIdFromRequest);
-                if (null !== $parent) {
-                    $parentNode = $parent;
+                if (!empty($resourceNodeIdFromRequest)) {
+                    $nodeRepo = $em->getRepository(ResourceNode::class);
+                    $parent = $nodeRepo->find($resourceNodeIdFromRequest);
+                    if (null !== $parent) {
+                        $parentNode = $parent;
+                    }
                 }
             }
         }