symfony 2.8 - comment system in AJAX

Question

I want to do a comment system in AJAX with symfony (2.8) and unfortunately, for the moment, i can't even get past the '$isAjax = $request->isXmlHttpRequest();'

I'm sorry if the code isn't 100% clean, i'm and testing a lot of things at this point.

here's a snippet of my controller:

public function showCommentsAction($id) { $request = $this->container->get('request'); $em = $this->getDoctrine()->getManager(); $event = $em->getRepository('MainBundle:Events')->find($id); $comments = $em->getRepository('MainBundle:Comments')->find($id); $user = $this->get('security.token_storage')->getToken()->getUser(); $comment = new Comments(); $comment->setEvent($event); $comment->setDateComment(new \DateTime("now")); $form = $this->get('form.factory')->createBuilder('form', $comment) ->add('comment') ->getForm(); $isAjax = $request->isXmlHttpRequest(); var_dump($isAjax); if ($request->isXmlHttpRequest()) { $form->handleRequest($request); // On vérifie que les valeurs entrées sont correctes // (Nous verrons la validation des objets en détail dans le prochain chapitre) if ($form->isValid()) { // On l'enregistre notre objet $advert dans la base de données, par exemple $em = $this->getDoctrine()->getManager(); $em->persist($comment); $em->flush(); return $this->redirect($request->getUri('event')); } } return $this->render('MainBundle:Default:Events\event.html.twig',array("event"=> $event,'form'=>$form->createView()));

here's my js :

$(document).ready(function() { // Au submit du formulaire $('#form').submit(function () { // On fait l'appel Ajax $.ajax({ type: "POST", url: "{{ path('showcomments'}}", //data: {commentaire: commentaire, _csrf_token: "{{ csrf_token('authenticate') }}"}, cache: false, data: {event_id: event_id}, success: function (data) { alert('succes'); } }); // On retourne false pour ne pas recharger la page return false; }); });

my route :

showcomments: path: /showcomments/{id} defaults: { _controller: MainBundle:Comments:showcomments } methods: POST

and my form :

<li class="write-new"> <form action="{{ path('showcomments', {'id' : event_id}) }}" method="POST" {{ form_enctype(form) }} id="form"> {{ form_widget(form) }} <input type="submit" /> </form> </li>

when you say 'cant get past', do you mean its failing the if condition check? — DevDonkey
– DevDonkey, Commented Apr 17, 2017 at 15:36
yes, indeed, i got this : 'src\Main\MainBundle\Controller\CommentsController.php:32:boolean false' — Devine
– Devine, Commented Apr 17, 2017 at 15:39
inspect the headers in the request, do they contain X-Requested-With? because thats all isXmlHttpRequest checks for. var_dump($request->headers->all()) — DevDonkey
– DevDonkey, Commented Apr 17, 2017 at 15:42
Possible duplicate of Cross-Domain AJAX doesn't send X-Requested-With header — DevDonkey
– DevDonkey, Commented Apr 17, 2017 at 15:54

Dima Rashevskiy · Accepted Answer · 2018-12-06 09:36:35Z

you pass /showcomments/{id} {id} in ajax data. And according to your route, it is a parameter. Try url: "{{ path('showcomments',{'id': yourId})}}", first try yourId just with hardcode, should be like you put in your form. So you can use url straight from your form also. Dont forget to preventDefault on submit. To check if your ajax works you should do like this:

return new Response($id);

and in js

success(data){console.log(data)}

And basically, you do not need to $event = $em->getRepository('MainBundle:Events')->find($id);

if you do

showCommentsAction(Event $event)

it will find automatically.

$comment->setDateComment(new \DateTime("now"));

this line can be done in controller of your Entity and you do not need to pass "now".

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