var $has_one = array( 'created_by' => array( 'class' => 'user', 'other_field' => 'created_event' ), 'edited_by' => array( 'class' => 'user', 'other_field' => 'edited_event' ), 'thumbnail' => array( 'class' => 'image', 'other_field' => 'event_thumbnail' ), 'venue' );
var $has_one = array('event', 'event_thumbnail' => array( 'class' => 'event', 'other_field' => 'thumbnail' ));