Rails：request.subdomains在应用程序控制器中为请求引发undef方法

Question

I am trying to extract the subdomain in the application controller, for app wide use, this way,

@subdomain = request.subdomains(0)

While this code works in any other controller, in the app controller it throws an

undefined local variable or method `request' for ApplicationController:Class

exception.

I am running rails 3.2.2 on Lion.

I borrowed it from DHH's code fragment for basecamp style subdomains -

class ApplicationController < ActionController::Base
  before_filter :set_current_account
  private
    def set_current_account
      @current_account = Account.find_by_subdomain!(request.subdomains.first)
    end
end

What am I missing?

Answer 1

When you're getting that error, it's happenning becaue you're calling request inside ApplicationController 's class instead of inside a method. Are you sure that the code you've shown us is correct?