fix: keep upload files until their deletion is committed

src/Controller/Administrative/Disposition/DocumentUploadController.php

@@ -13,6 +13,7 @@ use Doctrine\ORM\EntityManagerInterface;
 use Flagception\Manager\FeatureManagerInterface;
 use Psr\Log\LoggerInterface;
 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+use Symfony\Component\Form\FormError;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpFoundation\Response;
 use Symfony\Component\Routing\Attribute\Route;
@@ -49,6 +50,12 @@ class DocumentUploadController extends AbstractController
         $form = $this->createFormBuilder()->getForm();
         $form->handleRequest($request);
 
+        // Checked before processUpload() removes the existing document, which it replaces.
+        if ($form->isSubmitted()
+            && true === $this->uploadHandler->getUploadSession()->getUploadsByType($type)->isEmpty()) {
+            $form->addError(new FormError('Bitte lade zuerst eine Datei hoch'));
+        }
+
         if ($form->isSubmitted() && $form->isValid()) {
             $this->processUpload($disposition, $type);
 
@@ -110,15 +117,17 @@ class DocumentUploadController extends AbstractController
 
         $disposition->addDocument($upload);
 
-        $this->entityManager->flush();
-
         $this->uploadHandler->moveUploadSessionFilesFromOrphanage($type, $uploadSession);
         $this->uploadHandler->removeUploadSessionUploadsByType($type);
 
+        // Before the flush: converting a non-PDF renames the file, and the new filename has to
+        // be persisted with the row.
         if (true === $this->featureManager->isActive('sanitize_uploads')) {
             $this->uploadHandler->ensurePdf($upload);
         }
 
+        $this->entityManager->flush();
+
         $this->eventDispatcher->dispatch(new DocumentUploadedEvent($upload), DocumentUploadedEvent::NAME);
         if (Upload::TYPE_CONTRACT === $type) {
             $this->eventDispatcher->dispatch(new DocumentConfirmedEvent($upload), DocumentConfirmedEvent::NAME);