Php - Symfony - Logger Service - EntityManager - php

Question

I'm asking you for help because I got an error while trying to create a log service for tracing.
I followed this tutorial to perform this task:
https://nehalist.io/logging-events-to-database-in-symfony/
No problem occurred when creating the Log entity and the dbHandler service seems to run.
When I introduce the argument in services.yaml (arguments): ["#doctrine.orm.entity_manager"] and I use it in the MenuController constructor parameters, that's where the problem occurs.
Here is the error message: "It's a requirement to specify a Metadata Driver and pass it to Doctrine\ORM\Configuration::setMetadataDriverImpl()"
Thanks for your help.
Code error
services.yaml
services:
_defaults:
autowire: true # Automatically injects dependencies in your services.
autoconfigure: true # Automatically registers your services as commands, event
subscribers, etc.
App\:
resource: '../src/'
exclude:
- '../src/DependencyInjection/'
- '../src/Entity/'
- '../src/Kernel.php'
- '../src/Tests/'
App\Controller\:
resource: '../src/Controller/'
tags: ['controller.service_arguments']
arguments: ['#monolog.logger.db']
dbHandler:
class: App\Service\DbHandler
arguments: ["#doctrine.orm.entity_manager"]
monolog.yaml
monolog:
channels: ['db']
handlers:
dbHandler:
type: service
id: dbHandler
DbHandler.php
<?php
namespace App\Service;
use App\Entity\Log;
use Monolog\Handler\AbstractProcessingHandler;
use Doctrine\ORM\EntityManagerInterface;
class DbHandler extends AbstractProcessingHandler {
private $em;
public function __construct(EntityManagerInterface $em) {
parent::__construct();
$this->em = $em;
}
protected function write($record):void {
$log = new Log();
$log->setMessage($record['message']);
$log->setLevel($record['level']);
$log->setLevelName($record['level_name']);
$log->setContext($record['context']);
$this->em->persist($log);
$this->em->flush();
}
}
MenuController.php
namespace App\Controller;
use Psr\Log\LoggerInterface;
use Symfony\Component\Routing\Annotation\Route;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\IsGranted;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
class MenuController extends AbstractController
{
private $logger;
public function __construct(LoggerInterface $logger) {
$this->logger = $logger;
}
/**
* #Route("/menu", name="menu")
* #IsGranted("ROLE_USER")
*/
public function menu(LoggerInterface $logger )
{
$logger->info('Test');
}
}