title: Zend DB Select : ORDER BY FIELD('id',some_array) - how?
body: <p>How would you write the following query in Zend framework?</p>
  
  <p><code>SELECT * FROM table_name ORDER BY FIELD(field_name, 'Small','Medium','Large');</code></p>
  
  <p>I just need the "Order by" part :)</p>
  
  <p>Thanks!</p>