title: CakePHP query - complex AND/OR conditions
body: <p>I'm trying to get my head around the complex find conditions of CakePHP and have read <a href="http://book.cakephp.org/2.0/en/models/retrieving-your-data.html#complex-find-conditions" rel="noreferrer">the docs</a> but am struggling with this one query.</p>
  
  <pre><code>SELECT field1,
         field2
  WHERE id = 123456
    AND ((holding_date = Last_day(holding_date)
          AND Month(holding_date) IN(3, 6, 9, 12))
         OR (holding_date = '2013-09-15'))
  </code></pre>
  
  <p>To produce the above conditions what would my <code>conditions</code> array look like?</p>