title: Propel ORM - Custom where clause
body: <p>I'm trying to match md5(ID) to an id.</p>
  
  <pre><code>SELECT *
  FROM `user` u
  WHERE
  MD5(`user_id`) = '66f041e16a60928b05a7e228a89c3799'
  </code></pre>
  
  <p>this is ID = 58</p>
  
  <p>I tried something like this. I know I'm close I just don't know what I'm missing</p>
  
  <pre><code>$criteria = new Criteria();
  $criteria-&gt;addAnd('md5('.User::USER_ID.')', $_REQUEST['fs'], Criteria::CUSTOM);
  $user = UserPeer::doSelectOne($criteria);
  </code></pre>
  
  <p>Any ideas?</p>