[RFC] New portal feature - lock comments for closed/cancelled tickets

[dalonsod]

We're considering to add this new feature for portal ticket management: enabling an option that prevents adding (lock) comments for already closed tickets.

These are the possible options:

• A per-stage option, that could be set for closed states (like Done and Cancel), disabled (comments addition is still available) by default.
• A general setting, forced to tickets at close states, also disabled by default.

Which could be the best approach?

And another question... such feature, is it better adding it as a IMP at helpdesk_mgmt addon, or built it as an extra module?

Thanks in advance!

cc @marcelsavegnago @victoralmau @pedrobaeza

[pedrobaeza]

I think the first thing to do is a generic one for avoiding to post messages in the website, or is there already a mechanism in place in Odoo core for that?