How to Catch exception in the controller and show flash message in Symfony 2?
try{
$em = $this->getDoctrine()->getManager();
$em->persist($entity);
$em->flush();
return $this->redirect($this->generateUrl('target page'));
} catch(\Exception $e){
// What to do in this part???
}
return $this->render('MyTestBundle:Article:new.html.twig', array(
'entity' => $entity,
'form' => $form->createView(),
));
What should I do in the catch block?
You should take care for the exceptions that could be raised:
public function postAction(Request $request)
{
// ...
try{
$em = $this->getDoctrine()->getManager();
$em->persist($entity);
$em->flush();
return $this->redirect($this->generateUrl('target page'));
} catch(\Doctrine\ORM\ORMException $e){
// flash msg
$this->get('session')->getFlashBag()->add('error', 'Your custom message');
// or some shortcut that need to be implemented
// $this->addFlash('error', 'Custom message');
// error logging - need customization
$this->get('logger')->error($e->getMessage());
//$this->get('logger')->error($e->getTraceAsString());
// or some shortcut that need to be implemented
// $this->logError($e);
// some redirection e. g. to referer
return $this->redirect($request->headers->get('referer'));
} catch(\Exception $e){
// other exceptions
// flash
// logger
// redirection
}
return $this->render('MyTestBundle:Article:new.html.twig', array(
'entity' => $entity,
'form' => $form->createView(),
));
}
getRequest is Deprecated as of Symfony 2.4 and Removed as of Symfony 3.0. Please consider some editingRead this carefully, Catching exceptions and generating an output in the twig is clearly decribed here. :)
http://symfony.com/doc/current/book/controller.html
further,
you can use this primitive method to get methods of a class:
print_r(get_class_methods($e))
or this to pretty print your object
\Doctrine\Common\Util\Debug::dump($e);
echo (string)$e;or better, send you an email on a productive site:mail('[email protected]', 'Exception in script ...', var_export($e, true));