Symfony 2, how to save AJAX submitted data into new entity - php

Question

ok, I have submitted serialized data via AJAX using JQuery into a function within my Symfony 2 (2.7.10) app.
I am now having a few issues with trying to bind that data to a new entity and save that entity.
Here is what I have done to date:
public function AJAX_SaveTestAction(Request $request) {
// $GetFormData = $request->get('Data'); <- This is a jquery serialized data
$NewData = new TestInfo(); <- this is the entity I want to save
$form = $this->createForm(new InfoType(), $NewData);
$form->handleRequest($request);
if ( $request->isMethod('POST') ) {
$form->bind( $request->get('Data') );
$em = $this->getDoctrine()->getManager();
$em->persist( $NewData ); <- not saving jquery returns 500 server error?
$em->flush();
}
die(); <- this is just here for testing, I will want to return a json message or something else!
}
All help most welcome.
Thanks.

Answer 1

Don't use form->handleRequest and form->bind
form->bind was the equivalent of form->handleRequest before Symfony 2.6.
If you are using Symfony 2.3 use form->bind
If you are using Symfony 2.6+ use form->handleRequest
Your Controller should look like :
public function AJAX_SaveTestAction(Request $request)
{
$NewData = new TestInfo();
$form = $this->createForm(new InfoType(), $NewData);
$form->handleRequest($request);
if($form->isSubmitted()){ // if you also want to check if your entity is valid, just replace it with "if($form->isValid()){"
$em = $this->getDoctrine()->getManager();
$em->persist( $NewData );
$em->flush();
return new Response('It works');
}
return new Response('error');
}
But your JS should send a POST request to this route (with post parameters).
May be with that :
http://api.jquery.com/jquery.post/

Answer 2

To bind correctly your request data to your entity using handleRequest, Symfony expects an array with your form name as key in your POSTed data.
If you did not override method getName of your form, it is defined by default by "underscoring" your Form class name. So it should be info_type here.
TL;DR: You should submit your data as ['info_type' => [ YOUR DATA... ]] instead of just [ YOUR DATA... ]