delete child elements

backend/app/Element/EloquentElementRepository.php

@@ -63,6 +63,18 @@ class EloquentElementRepository implements ElementRepository
         return $this->toDomain($model);
     }
 
+    public function delete(Element $element): void
+    {
+        $model = ElementModel::find($element->getId());
+        if ($model === null) {
+            throw new DomainException(
+                "Element with id: {$element->getId()} doesnt exist"
+            );
+        }
+
+        $model->delete();
+    }
+
     public function find(int $id): ?Element
     {
         $model = ElementModel::find($id);