Ruby on Rails layouts...except and only bug

Question

I have a controller with the following layout logic

layout 'sessions', :except => :privacy
  layout 'static', :only => :privacy

The issue is that Rails seems to ignore the first line of code and the layout "sessions" is not applied for any actions. It simply thinks to render the static layout for privacy and no layout for the rest.

Anyone know how to fix this?

Answer 1

You can also dynamically determine the layout within your controller:

class SampleController < ApplicationController

    layout Proc.new { |controller| (controller.action_name == 'privacy') ? 'static' : 'sessions' }

    ...
end

If more actions within the controller are sharing the same layout:

class SampleController < ApplicationController

    layout Proc.new { |controller| ['action1', 'action2'].include?(controller.action_name) ? 'layout1' : 'layout2' }

    ...
end

Source: https://guides.rubyonrails.org/layouts_and_rendering.html#using-render