$form->addInput(array('type'=>'submit','name'=>'btn_delete','value'=>$i18n->getKey('label.delete')));
$form->addInput(array('type'=>'submit','name'=>'btn_cancel','value'=>$i18n->getKey('button.cancel')));
-if ($request->getMethod() == 'POST') {
+if ($request->isPost()) {
if ($request->getParameter('btn_delete')) {
if(ttNotificationHelper::get($cl_notification_id)) {
if (ttNotificationHelper::delete($cl_notification_id)) {