title: Rails 3 respond_with custom template
body: <p>I have a <code>latest</code> action in my controller. This action just grabs the last record and renders the <code>show</code> template.</p>
  
  <pre><code>class PicturesController &lt; ApplicationController
    respond_to :html, :json, :xml
  
    def latest
      @picture = Picture.last
  
      respond_with @picture, template: 'pictures/show'
    end
  end
  </code></pre>
  
  <p>Is there a cleaner way to supply template? Seems redundant to have to supply the <code>pictures/</code> portion for the HTML format since this is the Sites controller.</p>