update, delete entity relations

kernel/EntityRelation.php

@@ -203,4 +203,22 @@ class EntityRelation
 
         return [];
     }
+
+    public function deleteEntityRelationBySlug(string $slug, string $entity, Model $model): void
+    {
+        $moduleClass = $this->getAdditionalPropertyClassBySlug($slug);
+        if ($moduleClass and method_exists($moduleClass, "deleteItems")) {
+            $moduleClass->deleteItems($entity, $model);
+        }
+    }
+
+    public function deleteEntityRelation(string $entity, Model $model): void
+    {
+        $relations = $this->getEntityRelationsBySlug($entity);
+        if ($relations){
+            foreach ($relations as $relation){
+                $this->deleteEntityRelationBySlug($relation, $entity, $model);
+            }
+        }
+    }
 }

kernel/modules/post/controllers/PostController.php

@@ -93,6 +93,10 @@ class PostController extends AdminController
         $postForm->load($_REQUEST);
         if ($postForm->validate()) {
             $post = $this->postService->update($postForm, $post);
+
+            $entityRelation = new EntityRelation();
+            $entityRelation->saveEntityRelation(entity: "post", model: $post, request: new Request());
+
             if ($post) {
                 $this->redirect("/admin/post/view/" . $post->id);
             }
@@ -109,6 +113,10 @@ class PostController extends AdminController
         if (!$post){
             throw new Exception(message: "The post not found");
         }
+
+        $entityRelation = new EntityRelation();
+        $entityRelation->deleteEntityRelation(entity: "post", model: $post);
+
         $post->delete();
         $this->redirect("/admin/post/");
     }