How get form in controller action Symfony 2

Question

I trying to send Ajax request to my Controller, get form there, and if some data true, need to remove some part of form, but I dont know how i can get my form trought $request object. Help me please.

All code for now, I tell there is exist some way, to do something like this $request->getForm()

public funcion ajaxAction(Request $request)
{
     if ($request->isXmlHttpRequest()) {

      }
}

Answer 1

You should do something like this (I assume you're in your controller extending Symfony\\Bundle\\FrameworkBundle\\Controller\\Controller ):

public funcion ajaxAction(Request $request)
{
    if ($request->isXmlHttpRequest()) {
        $form = $this->createForm(new YourFormType());
        $form->handleRequest($request);
    }
}

after that you have $form with data from requst bound. You can call methods like isValid() or getData() on this variable

Check documentation for more info