X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/e97a5d828bdf7cb9626d72efd94d3bcf718a18c9..7499f61a2912cfdb1a316808fafa6e6ee77ee2e0:/services/api/app/models/arvados_model.rb

diff --git a/services/api/app/models/arvados_model.rb b/services/api/app/models/arvados_model.rb
index 709b4b4d1c..3966b7c393 100644
--- a/services/api/app/models/arvados_model.rb
+++ b/services/api/app/models/arvados_model.rb
@@ -627,7 +627,12 @@ class ArvadosModel < ApplicationRecord
   end
 
   def permission_to_destroy
-    permission_to_update
+    if [system_user_uuid, system_group_uuid, anonymous_group_uuid,
+        anonymous_user_uuid, public_project_uuid].include? uuid
+      false
+    else
+      permission_to_update
+    end
   end
 
   def maybe_update_modified_by_fields