Page-caching thoughtbot's excellent high_voltage

templates_controller.rb

class TemplatesController < HighVoltage::PagesController
  caches_page except: []
  skip_before_filter :authenticate_user!
  layout false
end

things_controller.rb

class ThingsController < ApplicationController
  before_filter :render_template
  
  def index
    # ...
  end
  
  def show
    # ...
  end
  
private
  def render_template
    render 'templates/things' unless params[:format] == 'json'
    true
  end
end

A bit of background.

So we ported our Rails app to angular.js recently and I was trying to decide where the template files should go. Their respective controllers' views/? Doesn't fit, now that the 1:1 action/template mapping no longer holds. The public folder? Nice, except I still rely on erb snippets to generate js/css dependencies.

high_voltage seems like a good middleground. The templates are relatively static and isolated from the views, and you can still write view logic. The best part is you can page-cache them so the compiled versions land straight in public/, to be served by nginx/apache.