public function updateVvmStageAction()
{
$data = array();
$data['batch_id'] = $this->_request->getParam('batch_id');
$data['placement_id'] = $this->_request->getParam('placement_id');
$data['vvm_stage'] = $this->_request->getParam('vvm_stage');
$data['qty'] = $this->_request->getParam('qty');
$placements = new Model_Placements();
$placements->form_values = $data;
$result = $placements->updateVvmStage();
echo Zend_Json::encode(array($result));
}
