LUA-created groups are not usable

Getting Stuff Done Lua Scripting
#1

Hello,
I’m writing a script to setup some buses in a session. It also creates groups for each bus and sets some defaults and colors. But, the LUA created groups are not usable. The buses are in the group, but not really?

image

image
image1728×900 78.4 KB

I cannot assign other tracks to the groups, I can drag the group over another track, but the track doesn’t actually get assigned to the group. Another scripthook doesn’t react to the track getting added to a group.

        local function getRouteGroup(group)
            assert(group)

            print("Creating group " .. group.name)

            local current_routegroup = Session:new_route_group(group.name)

            current_routegroup:set_color(false)
            current_routegroup:set_gain(false)
            current_routegroup:set_relative(false, nil)
            current_routegroup:set_hidden(false, nil)
            current_routegroup:set_monitoring(false)
            current_routegroup:set_mute(false)
            current_routegroup:set_recenable(false)
            current_routegroup:set_rgba(catppuccin[group.color])
            current_routegroup:set_route_active(true)
            current_routegroup:set_select(false)
            current_routegroup:set_solo(false)

            return current_routegroup
        end

I can create another group with the same name (eg. second group “Strings”), when running the script the second group is used in the script.

What’s the correct way to create a routegroup with LUA?

Thanks and best!
Vivien

#2

In ardour/share/scripts/track_organizer.lua at 6cc89c847048026f1494fda9d0c37a86c15c7518 · Ardour/ardour · GitHub there is a Session:add_route_group() function used, but it’s not in the documentation and doesn’t work in my console:

group = Session:new_route_group("Strings")
Session:add_route_group(group)

Error: [string "group = Session:new_route_group("Strings")..."]:2: attempt to call a nil value (method 'add_route_group')

group = Session:new_route_group("Strings")
group:add(Session:route_by_name("Strings"))

works in Ardour 8.12, broken in 9.2, just creates new broken route_groups when run in the console.

I’m still doing something wrong here, I guess :frowning: