List of users in Symfony 5 (Bolt 4) - php

Question

I'm using Bolt 4 CMS which is based on Symfony 5. In a controller I wrote, I would like to list all the users from my database, to retrieve their email addresses and send them an email. For now I am simply trying to retrieve the email address from the username.
In this example https://symfony.com/doc/current/security/user_provider.html, it shoes how to create your own class to deal with users from the database:
// src/Repository/UserRepository.php
namespace App\Repository;
use Doctrine\Bundle\DoctrineBundle\Repository\ServiceEntityRepository;
use Symfony\Bridge\Doctrine\Security\User\UserLoaderInterface;
class UserRepository extends ServiceEntityRepository implements UserLoaderInterface
{
// ...
public function loadUserByUsername(string $usernameOrEmail)
{
$entityManager = $this->getEntityManager();
return $entityManager->createQuery(
'SELECT u
FROM App\Entity\User u
WHERE u.username = :query
OR u.email = :query'
)
->setParameter('query', $usernameOrEmail)
->getOneOrNullResult();
}
}
In my custom controller, I then call this class and function:
// src/Controller/LalalanEventController.php
namespace App\Controller;
use Symfony\Component\Mailer\MailerInterface;
use Symfony\Component\Mime\Email;
use App\Repository\LalalanUserManager;
class LalalanEventController extends AbstractController
{
/**
* #Route("/new_event_email")
*/
private function sendEmail(MailerInterface $mailer)
{
$userManager = new LalalanUserManager();
$email = (new Email())
->from('aaa.bbb#ccc.com')
->to($userManager('nullname')->email)
->subject('Nice title')
->text('Sending emails is fun again!')
->html('<p>See Twig integration for better HTML integration!</p>');
$mailer->send($email);
}
}
Unfortunately, in the example, the class extends from ServiceEntityRepository, which requires a ManagerRegistry for the constructor. Does anyone have a clue what could I change to solve this?
Thanks in advance!

Answer 1

As said in the doc,
User providers are PHP classes related to Symfony Security that have two jobs:
Reload the User from the Session
Load the User for some Feature
So if you want only to get list of users, you have just to get the UserRepository like this:
/**
* #Route("/new_event_email")
*/
private function sendEmail(MailerInterface $mailer)
{
$userRepository = $this->getDoctrine()->getRepository(User::class);
$users = $userRepository->findAll();
// Here you loop over the users
foreach($users as $user) {
/// Send email
}
}
Doctrine reference: https://symfony.com/doc/current/doctrine.html
You need also to learn more about dependency injection here: https://symfony.com/doc/current/components/dependency_injection.html