/**
  * Modify collection after load
  *
  * @return  Mage_Core_Model_Resource_Db_Collection_Abstract
  */
 protected function _afterLoad()
 {
     parent::_afterLoad();
     if (count($this->_items) > 0) {
         $ids = array();
         foreach ($this->_items as $item) {
             $ids[] = $item->getId();
         }
         $ids = implode(',', $ids);
         $select = $this->getConnection()->select()->from($this->getTable('sales/order_status_history'))->where("parent_id IN ({$ids})")->order('created_at ASC');
         $items = $this->getConnection()->fetchAll($select);
         foreach ($items as $item) {
             $parent = $this->_items[$item['parent_id']];
             $parent->setOrdercomment($item['comment']);
         }
     }
     return $this;
 }