title: Access method from another Controllers
body: <p>I'm actually creating a blog with articles.
  I have a Articles Controller, with an index, create, show, new etc</p>
  <p>My root page is pages#home.
  I do not have nothing on it yet.
  I will, asap, create a podcast controller.</p>
  <p>The idea is to :</p>
  <ul>
  <li>show the last article on the root page</li>
  <li>show the the last three podcast on the root page also</li>
  </ul>
  <p>For now, I'm doing this for Article on my homepage
  &lt;%= Article.last.title %&gt;</p>
  <pre><code>&lt;%= Article.last.publication_time %&gt;
  &lt;%= Article.last.body %&gt;
  &lt;%= link_to &quot;Read more&quot;, Article.last %&gt;
  </code></pre>
  <p>In the params, when I put @article, the app send me nil
  Even if I create a instance variable in my applicationcontroller...</p>
  <p>Some help to do this in a best way ?
  How to show the last 3rd podcast on the root page also ?</p>
  <p>Best</p>