处理Ajax请求Symfony

Question

I am trying to perform an ajax post request but I can't handle the form.

Ajax :

function ft_postFormation(e) {
e.preventDefault();
data = $('form[name=appbundle_formation_post]').serialize();


$.post({
  url: ROOT_DIR + "api/back_office/post_formation",
  data: data,
  contentType: "application/json",
  dataType: 'json',
  beforeSend: function (xhr) {
    xhr.setRequestHeader("Authorization", "Bearer " + $.cookie("token"));
  }
}).done(function (e) {
  console.log(e);
});

} });

controller :

    public function postFormationAction(Request $request)
{
    $formation = new Formation;
    $form = $this->createForm(FormationForm::class, $formation);
    $form->handleRequest($request);

    if ($form->isSubmitted() && $form->isValid())
    {
        //handling the form
    }
}

}

I don't know if I serialize the data correctly or if I do not handle the form correctly. I read this solution everywhere but I am obviously missing something.

I receive the data within the controller (as a string). I also tried to serialize the form with $.serializeArray() but i could not handle the form either.

In all cases $form->getData says the form is correcly created but not filled with the datas received.

Answer 1

I've finally found the problem.

The header was wrong. If you use the serialize() Jquery function, the good header is not dataType:json but dataType:x-www-form-urlencoded. Then, the form is correctly add to the Request object and the form can be handled with $form->handleRequest($form).