Prevent non allowed metadata deletion

arkindex/documents/api/elements.py

@@ -814,6 +814,10 @@ class MetadataEdit(RetrieveUpdateDestroyAPIView):
         if Right.Write not in obj.element.corpus.get_acl_rights(request.user):
             self.permission_denied(request, message='You do not have write access to this corpus.')
 
+    def perform_destroy(self, instance):
+        serializer = self.get_serializer(instance)
+        serializer.delete(instance)
+
 
 class AllowedMetaDataPagination(PageNumberPagination):
     page_size = 200