Symfony Without Bundles

config.yml

jms_di_extra:
    locations:
        directories: "%kernel.root_dir%/../src"

orm.yml

doctrine:
    # ...

    orm:
        auto_generate_proxy_classes: "%kernel.debug%"
        mappings:
            model:
                type: annotation
                dir: "%kernel.root_dir%/../src/Example/Model"
                prefix: Example\Model
                alias: Model
                is_bundle: false

routing.yml

site:
    resource: Example\Controller\UserController
    type: annotation

services.yml

services:
    user_manager:
        class: Example\Manager\UserManager
        arguments:
            - "@user_repository"

User.php

<?php
namespace Example\Model;

use Doctrine\ORM\Mapping\Column;
use Doctrine\ORM\Mapping\Entity;
use Doctrine\ORM\Mapping\GeneratedValue;
use Doctrine\ORM\Mapping\Id;

/**
 * @Entity
 */
class User
{
    /**
     * @Id
     * @GeneratedValue
     * @Column(type="bigint")
     *
     * @var int
     */
    private $id;

    /**
     * @return int
     */
    public function getId()
    {
        return $this->id;
    }
}

UserController.php

<?php
namespace Example\Controller;

use Example\Manager\UserManager;
use Example\Model\User;
use JMS\DiExtraBundle\Annotation\InjectParams;
use JMS\DiExtraBundle\Annotation\Service;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;

/**
 * @Service("user_controller")
 * @Route("/user", service="user_controller")
 */
class UserController
{
    /**
     * @var UserManager
     */
    private $userManager;

    /**
     * @InjectParams
     *
     * @param UserManager $userManager
     */
    public function __construct(UserManager $userManager)
    {
        $this->userManager = $userManager;
    }

    /**
     * @Route("/{id}")
     *
     * @param int $id
     * @return User
     */
    public function viewAction($id)
    {
        return $this->userManager->find($id);
    }
}

UserController2.php

<?php
namespace Example\Controller;

use Example\Manager\UserManager;
use Example\Model\User;
use JMS\DiExtraBundle\Annotation\InjectParams;
use JMS\DiExtraBundle\Annotation\Service;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;

/**
 * @Service("user_controller")
 * @Route("/user", service="user_controller")
 */
class UserController
{
    /**
     * @var UserManager
     */
    private $userManager;

    /**
     * @InjectParams
     *
     * @param UserManager $userManager
     */
    public function __construct(UserManager $userManager)
    {
        $this->userManager = $userManager;
    }

    /**
     * @Route("/{id}")
     * @Template
     *
     * @param int $id
     * @return User
     */
    public function viewAction($id)
    {
        return [
            'user' => $this->userManager->find($id),
        ];
    }
}

UserManager.php

<?php
namespace Example\Manager;

use Example\Model\User;
use Example\Repository\UserRepository;

class UserManager
{
    /**
     * @var UserRepository
     */
    private $userRepository;

    /**
     * @param UserRepository $userRepository
     */
    public function __construct(UserRepository $userRepository)
    {
        $this->userRepository = $userRepository;
    }

    /**
     * @param int $id
     * @return User
     */
    public function find($id)
    {
        return $this->userRepository->find($id);
    }
}

UserManager2.php

<?php
namespace Example\Manager;

use Example\Model\User;
use Example\Repository\UserRepository;
use JMS\DiExtraBundle\Annotation\InjectParams;
use JMS\DiExtraBundle\Annotation\Service;

/**
 * @Service("user_manager")
 */
class UserManager
{
    /**
     * @var UserRepository
     */
    private $userRepository;

    /**
     * @InjectParams
     *
     * @param UserRepository $userRepository
     */
    public function __construct(UserRepository $userRepository)
    {
        $this->userRepository = $userRepository;
    }

    /**
     * @param int $id
     * @return User
     */
    public function find($id)
    {
        return $this->userRepository->find($id);
    }
}