How to set an Entity property in Symfony2 that is the result of a service?

Question

symfony

What do you do if you need to set some property of the model as the result of another service. For example, there is a resource that can be accessed by presenting an access code (token). The code is generated by the service based on [param + secret + expire] => hash
The model data is returned to the client as JSON data with a list of resources along with keys to each resource. What is the right way to implement this in Symfony?

Answer 1

Added an event listener as a service through tags to inject my configured service into the listener according to the description for the
The necessary annotation is described there [/** @Entity @EntityListeners({"UserListener"}) */] was a piece of code, but the dependency injection implementation was not described:

<?php
// User.php

/** @Entity @EntityListeners({"UserListener"}) */
class User
{
    // ....
}

// UserListener.php
class UserListener
{
    public function __construct(MyService $service)  <<<
    {
        $this->service = $service;
    }

    public function preUpdate(User $user, PreUpdateEventArgs $event)
    {
        $this->service->doSomething($user);
    }
}

// register a entity listener.
$listener = $container->get('user_listener');
$em->getConfiguration()->getEntityListenerResolver()->register($listener);

Total:
1. Specify an annotation referring to the event listener class
2. Create a listener class and describe the logic necessary to set entity properties using external services
3. Inject these services as listener arguments in the class constructor
4. Using the name tag: doctrine.orm.entity_listener register listener/service
Shoot me((