How to Use Object Manager in Symfony3 - php

Question

Error
Catchable Fatal Error: Argument 2 passed to Acme\StoreBundle\Security\TokenAuthenticator::__construct() must be an instance of Doctrine\Common\EventManager, instance of Doctrine\Bundle\MongoDBBundle\ManagerRegistry given, called in D:\xamppNew\htdocs\mtl_project\var\cache\dev\appDevDebugProjectContainer.php on line 6178 and defined
TokenAuthenticator.php
<?php
namespace Acme\StoreBundle\Security;
use Doctrine\Common\EventManager;
use Doctrine\Common\Persistence\ObjectManager;
use Doctrine\Common\Persistence\ObjectRepository;
use Doctrine\MongoDB\Connection;
use Doctrine\ODM\MongoDB\Mapping\ClassMetadataInfo;
use Doctrine\ODM\MongoDB\Mapping\MappingException;
use Doctrine\ODM\MongoDB\Hydrator\HydratorFactory;
use Doctrine\ODM\MongoDB\Proxy\ProxyFactory;
use Doctrine\ODM\MongoDB\Query\FilterCollection;
use Doctrine\ODM\MongoDB\Repository\RepositoryFactory;
//use Acme\StoreBundle\Security\TokenAuthenticator;
use Lexik\Bundle\JWTAuthenticationBundle\Encoder\JWTEncoderInterface;
use Lexik\Bundle\JWTAuthenticationBundle\TokenExtractor\AuthorizationHeaderTokenExtractor;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
use Symfony\Component\Security\Core\Exception\AuthenticationException;
use Symfony\Component\Security\Core\Exception\CustomUserMessageAuthenticationException;
use Symfony\Component\Security\Core\User\UserInterface;
use Symfony\Component\Security\Core\User\UserProviderInterface;
use Symfony\Component\Security\Guard\AbstractGuardAuthenticator;
class TokenAuthenticator extends AbstractGuardAuthenticator
{
/**
* #var JWTEncoderInterface
*/
private $jwtEncoder;
/**
* #var Doctrine\Common\Persistence\ObjectManager
*/
protected $om;
/**
* #param JWTEncoderInterface $jwtEncoder
* #param ObjectManager $om
*/
public function __construct(JWTEncoderInterface $jwtEncoder, Doctrine\Common\Persistence\ObjectManager $om)
{
$this->jwtEncoder = $jwtEncoder;
$this->om = $om;
}
/**
* #inheritdoc
*/
public function getCredentials(Request $request)
{
$extractor = new AuthorizationHeaderTokenExtractor(
'Bearer',
'Authorization'
);
$token = $extractor->extract($request);
if (!$token) {
return;
}
return $token;
}
/**
* #inheritdoc
*/
public function getUser($credentials, UserProviderInterface $userProvider)
{
$data = $this->jwtEncoder->decode($credentials);
if ($data === false) {
throw new CustomUserMessageAuthenticationException('Invalid Token');
}
$username = $data['username'];
return $this->om
->getRepository('UserBundle:User')
->findOneBy(['username' => $username]);
}
/**
* #inheritdoc
*/
public function checkCredentials($credentials, UserInterface $user)
{
return true;
}
/**
* #inheritdoc
*/
public function onAuthenticationFailure(Request $request, AuthenticationException $exception)
{
}
/**
* #inheritdoc
*/
public function onAuthenticationSuccess(Request $request, TokenInterface $token, $providerKey)
{
}
/**
* #inheritdoc
*/
public function supportsRememberMe()
{
return false;
}
/**
* #inheritdoc
*/
public function start(Request $request, AuthenticationException $authException = null)
{
return new Response('Token is missing!', Response::HTTP_UNAUTHORIZED);
}
}
Refrence
Difference between ObjectManager and EntityManager in Symfony2?
https://github.com/doctrine/mongodb-odm/blob/785c5039d51923d22902fa1249d1e3dd64018838/lib/Doctrine/ODM/MongoDB/DocumentManager.php#L44
im new in symfonymongodb bundle
can anyone suggest how can i use object manager in contructor as symfony is throwing errors.

Answer 1

doctrine_mongodb is a service that returns a Doctrine\Bundle\MongoDBBundle\ManagerRegistry object. You can get ObjectManager by calling getManager from it.
<?php
namespace Acme\StoreBundle\Security;
use Doctrine\Bundle\MongoDBBundle\ManagerRegistry;
// ...
class TokenAuthenticator extends AbstractGuardAuthenticator
{
/**
* #var Doctrine\Common\Persistence\ObjectManager
*/
protected $om;
// ...
public function __construct(JWTEncoderInterface $jwtEncoder, ManagerRegistry $registry)
{
// ...
$this->om = $registry->getManager();
}