create voter which blocks deletion if a workflow exists

src/Bundle/ChillDocStoreBundle/Workflow/AccompanyingCourseDocumentWorkflowHandler.php

@@ -12,6 +12,7 @@ declare(strict_types=1);
 namespace Chill\DocStoreBundle\Workflow;
 
 use Chill\DocStoreBundle\Entity\AccompanyingCourseDocument;
+use Chill\DocStoreBundle\Security\Authorization\AccompanyingCourseDocumentVoter;
 use Chill\MainBundle\Entity\Workflow\EntityWorkflow;
 use Chill\MainBundle\Workflow\EntityWorkflowHandlerInterface;
 use Chill\PersonBundle\Entity\AccompanyingPeriodParticipation;
@@ -36,6 +37,13 @@ class AccompanyingCourseDocumentWorkflowHandler implements EntityWorkflowHandler
         $this->translator = $translator;
     }
 
+    public function getDeletionRoles(): array
+    {
+        return [
+            AccompanyingCourseDocumentVoter::DELETE,
+        ];
+    }
+
     public function getEntityData(EntityWorkflow $entityWorkflow, array $options = []): array
     {
         $course = $this->getRelatedEntity($entityWorkflow)
@@ -66,6 +74,18 @@ class AccompanyingCourseDocumentWorkflowHandler implements EntityWorkflowHandler
         return $this->repository->find($entityWorkflow->getRelatedEntityId());
     }
 
+    /**
+     * @param AccompanyingCourseDocument $object
+     *
+     * @return array[]
+     */
+    public function getRelatedObjects(object $object): array
+    {
+        return [
+            ['entityClass' => AccompanyingCourseDocument::class, 'entityId' => $object->getId()],
+        ];
+    }
+
     public function getRoleShow(EntityWorkflow $entityWorkflow): ?string
     {
         return null;
@@ -84,6 +104,11 @@ class AccompanyingCourseDocumentWorkflowHandler implements EntityWorkflowHandler
         ];
     }
 
+    public function isObjectSupported(object $object): bool
+    {
+        return $object instanceof AccompanyingCourseDocument;
+    }
+
     public function supports(EntityWorkflow $entityWorkflow, array $options = []): bool
     {
         return $entityWorkflow->getRelatedEntityClass() === AccompanyingCourseDocument::class;