title: cakephp: find statement with 'contain'
body: <p>the following User model function is from MilesJones forum plugin. Can someone tell me on what is the use of 'contain' in the find stmt. I couldn't find any example with contain in the cakephp cookbook. Any helps is appreciated.</p>
  
  <pre><code>public function getProfile($id) {
      return $this-&gt;find('first', array(
          'conditions' =&gt; array('User.id' =&gt; $id),    
          'contain' =&gt; array(
              'Access' =&gt; array('AccessLevel'),
              'Moderator' =&gt; array('ForumCategory')
          )
      ));
  }
  </code></pre>