title: Rails: URL/path with parameters
body: <p>I would like to produce a URL as</p>
  
  <pre><code>/swimming/students/get_times/2013-01-01/2013-02-02
  </code></pre>
  
  <p>from this route</p>
  
  <pre><code>get_class_swimming_students GET /swimming/students/get_times/:start_date/:end_date(.:format) swimming/students#get_times
  </code></pre>
  
  <p>How do I pass parameters to <code>get_class_swimming_students_path</code> ?</p>