Question

I noticed that an index view is routed correctly even if there isn’t a controller method index.

As an example, the routes.rb has this route

AppName::Application.routes.draw do
  get 'about' => "about#index"
end

My controller looks like this with no index method (def index end)

class AboutController < ApplicationController
end

and I have a view called index.html.erb in the views/about folder

What’s happening here? Is this a case of rails magic where they automatically show the view even if there is no controller method? I couldn’t find any documentation on this…

Answer 1

If you have the view file, it’ll go ahead and render that implicitly, as documented here

See also, this SO thread on how Rails renders your view files and controller actions.