我可以从我的 controller 渲染 rails 欢迎页面吗？

Question

When I want to show default welcome page by routes.rb, I can add route like this:

  root "rails/welcome#index"

Then, I want to render the same template in my controller out of curiosity. The template is in rails/railties/lib/rails/templates/rails/welcome/index.html.erb

I thought `render "controller/action" works for my own files, but it doesn't seem to work for built-in files.

  def index
    render "rails/welcome/index"  # This shows error `Missing template rails/welcome/index`.
  end

So, Is there a handy way to render built-in template?

Answer 1

Yes you can render the rails welcome page from your controller by using the Rails::WelcomeController

class WelcomeController < Rails::WelcomeController

end

Don't define the index method in WelcomeController . Rails will pick the index method of Rails::WelcomeController and will render the default welcome page.