public function ajaxMergeBatchAction()
 {
     $this->_helper->layout->disableLayout();
     $stock_batch = new Model_StockBatch();
     $stock_batch->form_values = array('item_id' => $this->_request->getParam('product'), 'wh_id' => $this->_request->getParam('warehouse'));
     $result = $stock_batch->getBatchesByItem();
     $this->view->result = $result;
     $this->view->role_id = $this->_identity->getRoleId();
 }