title: Rails 4 routes passing default parameter without having to include it on url
body: <p>I have this routes in my <strong>routes.rb</strong></p>
  
  <pre><code>get "/whats_new/:only_new" =&gt; 'products#index', as: :whats_new_page_products, :defaults =&gt; { :only_new =&gt; true }
  </code></pre>
  
  <p>and its produces:</p>
  
  <pre><code>localhost:3000/whats_new/true
  </code></pre>
  
  <p>is there any way to only show it as:</p>
  
  <pre><code>localhost:3000/whats_new/
  </code></pre>
  
  <p>thanks in advance</p>