title: Method from another controller
body: <p>Let's say I have a libraries controller and a books controller.</p>
  
  <p>Part of libraries_controller.rb:</p>
  
  <pre><code>def report
    #some code here
  end
  </code></pre>
  
  <p>Part of books_controller.rb:</p>
  
  <pre><code>def create
    @library.report
  end
  </code></pre>
  
  <p>Is it possible to call another controller's method? If not, how do I make a library generate some sort of report after a book is created.</p>