I had the same problem once. It turned out that I had called manage_setLocalRoles with a tuple instead of a list, but as you found out some code expects all local roles to be stored as the same sequence type, and Role.manage_addLocalRoles enforces the invariant that a changed role is stored as a list. I think manage_setLocalRoles should be changed to enforce that invariant. Florent Christian Theune <ct@gocept.com> wrote:

Hi.

I get smacked by this:

[...long traceback...]

* Module Products.CMFCore.CatalogTool, line 58, in allowedRolesAndUsers * Module Products.CMFCore.utils, line 200, in _mergedLocalRoles

Exception Value can only concatenate tuple (not "list") to tuple

The file tells me nothing special. I once fixed it by using

merged[k] = tuple(merged[k]) + tuple(v)

instead of

merged[k] = merged[k] + v

I don't know if i triggered something bad before, but this code seems to be somewhat ... instable ... so maybe forcing it into a tuple maybe a good thing. -- Florent Guillaume, Nuxeo (Paris, France) +33 1 40 33 79 87 http://nuxeo.com mailto:fg@nuxeo.com