/**
  * Loads the associated attachment meta data
  * This data is stored as a serialized array
  *
  * @param int $id
  * @param string $field
  * @return Fishpig_Wordpress_Model_Post_Attachment_Abstract
  */
 public function load($id, $field = null)
 {
     parent::load($id, $field);
     $this->loadSerializedData();
     return $this;
 }