title: Use controller Concern inside Sidekiq Worker
body: <p>I have a Sidekiq Worker like this:</p>
  
  <pre><code>class PrintWorker
    include Sidekiq::Worker
  
    def perform(action,data)
      parsed_data = JSON.parse(data)
      if action=="tiquet"
        print_tiquet(parsed_data)
      elsif action=="summary"
        print_summary(data[0],data[1])
      end
    end
  end
  </code></pre>
  
  <p>were "print_tiquet" and "print_summary" are methods inside a controller concern called Printable. </p>
  
  <p>Is there any way to include this concern inside the worker class? Actually I tried without luck:</p>
  
  <p>require "printable"
  include Printable</p>
  
  <p>thanks in advance.</p>