templates - Rails 3, find current view while in the layout

Question

I have a scenario where I would like to have the name of the view that will be rendering while I'm in the layout file. I can find solutions to find which layout will be wrapping the current view from the view, but not the other way around. How can I find which view is rendering?

Answer 1

In Rails 3.0.3, I was able to see the name of the controller and action using controller_name and action_name. But those are not publicly documented (at least the action name) so I wouldn't depend on it long-term.

It might be better to monkey patch template render. In an initializer:

module ActionView::Rendering 
  alias_method :_render_template_original, :_render_template
  def _render_template(template, layout = nil, options = {}) 
    @last_template = template
    _render_template_original(template, layout, options)
  end
end

Then use @last_template in your layout.