FOSUserBundle, EventListener registration user - symfony

Question

I'm working on the FOSUserBundle, on EventListener for RegistrationUser.
In this bundle, when I create a user, I use a method updateUser() (in Vendor...Model/UserManagerInterface). This method seems to be subject to an EventListener that triggers at least two actions. Registering the information entered in the database. And sending an email to the user to send them login credentials.
I found the method that sends the mail. By cons, I didn't find the one who makes the recording. I also didn't find where to set the two events.
First for all (and my personal information), I try to find these two points still unknown. If anyone could guide me?
Then, depending on what we decide with our client, I may proceed to a surcharge (which I still don't really know how to do), but I imagine that I would find a little better once my two strangers found
Thanks for your attention and help

Answer 1

This is the function wich handles the email confirmation on registrationSucces
FOS\UserBundle\EventListener\EmailConfirmationListener
public function onRegistrationSuccess(FormEvent $event)
{
/** #var $user \FOS\UserBundle\Model\UserInterface */
$user = $event->getForm()->getData();
$user->setEnabled(false);
if (null === $user->getConfirmationToken()) {
$user->setConfirmationToken($this->tokenGenerator->generateToken());
}
$this->mailer->sendConfirmationEmailMessage($user);
$this->session->set('fos_user_send_confirmation_email/email', $user->getEmail());
$url = $this->router->generate('fos_user_registration_check_email');
$event->setResponse(new RedirectResponse($url));
}
But I tell you that what you are trying to do is a bad practice. The recommended way is the following.
Step 1: Select one of the following events to listen(depending on when you want to catch the process)
/**
* The REGISTRATION_SUCCESS event occurs when the registration form is submitted successfully.
*
* This event allows you to set the response instead of using the default one.
*
* #Event("FOS\UserBundle\Event\FormEvent")
*/
const REGISTRATION_SUCCESS = 'fos_user.registration.success';
/**
* The REGISTRATION_COMPLETED event occurs after saving the user in the registration process.
*
* This event allows you to access the response which will be sent.
*
* #Event("FOS\UserBundle\Event\FilterUserResponseEvent")
*/
const REGISTRATION_COMPLETED = 'fos_user.registration.completed';
Step 2 Implement the Event Subscriber with a priority
public static function getSubscribedEvents()
{
return array(
FOSUserEvents::REGISTRATION_SUCCESS => [
'onRegistrationSuccess', 100 //The priority is higher than the FOSuser so it will be called first
],
);
}
Step 3 Implement your function
public function onRegistrationSuccess(FormEvent $event)
{
//do your logic here
$event->stopPropagation();//the Fos User method shall never be called!!
$event->setResponse(new RedirectResponse($url));
}
You never should modify the third party libraries in this case the Event Dispatcher System is made for this to earlier process the event and if its needed stop the propagation and avoid the "re-processing" of the event.
Hope it helps!!!!