public function updateAction()
{
$degree = new Model_Config();
$listDegree = $degree->listDegree();
$this->view->listDegree = $listDegree;
if ($this->_request->isPost()) {
$data = $this->_getParam('Params');
foreach ($data as $degree_id => $coefficient) {
$degree->updateDegree($degree_id, $coefficient);
}
$this->redirect('giaovu/degree/update');
}
}