title: CakePHP conditions for deep associations
body: <p>I have some deep associations using containable and need to filter back the results. For the sake of this question, let's say we are selling cars and want to narrow the results down by features.</p>
  
  <p>Car hasmany make hasmany model HABTM features</p>
  
  <pre><code>$options = array( 
      'order' =&gt; array('Car.price'),
      'contain' =&gt; array(
          'make',
          'model' =&gt; array(
              'order' =&gt; 'Model.name ASC'
          ),
          'features'
      )
  );
  $cars = $this-&gt;Car-&gt;find('all', $options);
  </code></pre>
  
  <p>How would I go about excluding all cars that don't have power windows (Features.name != power_windows).</p>