title: Order 'Contain' Model in CakePHP 3.x
body: <p>I have multiple <code>Things</code> in <code>AnotherThing</code> now I am trying to order them in my edit action in my <code>AnotherThing Controller</code> - I can access the <code>Things</code> just fine in my edit, but I want to sort them differently (not over their ID), for example <code>Things.pos</code></p>
  
  <p>Whats the best practice here? I tried it with </p>
  
  <pre><code>public $hasMany = array(
          'Thing' =&gt; array(
              'order' =&gt; 'Thing.pos DESC'
          )
      );
  </code></pre>
  
  <p>But nothing changed. Any idea?</p>