if referrer domain = x, redirect to page in Rails

Question

I would like to detect the referrer domain to my Rails site, and if the referrer matches a domain I would like them to be redirected to a specific page.

How could I do this?

Answer 1

class MyController < ApplicationController
  def my_action
    if request.referer =~ /a_domain_pattern/
      redirect_to a_specific_page_path
    end
  end
end