根据Rails中的控制器加载JavaScript文件

Question

I have two controllers:

class WelcomeController < ApplicationController
  def index
  end
end
class HomeController < ApplicationController
  def index
  end
end

In my assets folder, I have two JavaScript files:

home.coffee
welcome.coffee

I want to load my script according to the controller:

• home.coffee at home/index path only
• welcome.coffee at welcome/index path only

Answer 1

AFAIK the asset pipeline will concat all the Javascript you specify in the application.js manifest. For conditional execution, one technique might be to search for a unique ID in the DOM. For example, your home/index view might have a <div id="home" /> element, so in home.coffee , you write:

$ -> return unless $('#home').length (...the rest of your code here)