Question

I want to run my Rails application in a different scope so that I can deploy it in a war file (mydepartment.war) which will share a Tomcat instance with another Java app WAR. The solution I chose was to modify the rackup file (/config.ru).

map '/mydepartment' do
   run Myapp::Application
end 

When I do this, my base URL becomes http://localhost:3000/mydepartment instead of just http://localhost:3000. The application runs fine, but it doesn’t download CSS/JS specified by stylesheet and script helpers.

However, when I try to include stylesheets and Javascript using helpers, such as

<%= stylesheet_link_tag :all %>
<%= javascript_include_tags :defaults %>

The URLs they generate include localhost:3000/javascripts/jquery.js instead of localhost:3000/mydepartment/javascripts/jquery.js. I actually tried typing the latter in the browser, and the sheet downloads fine.

How can I coax the Rails Javascript/CSS helpers to download files in the new scope without hardcoding it?

Answer 1

if you’re not on rails 3.1:

Add this to your config/environments/production.rb (if on production mode):

config.action_controller.asset_path = proc { |path| "/mydepartment#{path}" }