Entity Mapping doesn't work - doctrine-orm

Question

I'm trying to use Doctrine2 with ZF3. All components have been installed with composer.
When I try to use an Entity I have an exception :
Doctrine\Common\Persistence\Mapping\MappingException
Class 'Application\Entity\Concours' does not exist
The exception is thrown when I use in the Controller's action :
$concours = $this->entityManager->getRepository(Concours::class);
I have the same problem if i use :
$entity = new Concours();
or
$entity = new \Application\Entity\Concours();
I really don't understand why...
Thanks for help...
My configuration :
config/local.php
use Doctrine\DBAL\Driver\PDOMySql\Driver as PDOMySqlDriver;
return [
'doctrine' => [
'connection' => [
'orm_default' => [
'driverClass' => PDOMySqlDriver::class,
'params' => [
'host' => '127.0.0.1',
'user' => 'xxxx',
'password' => 'xxxx',
'dbname' => 'goch',
],
],
],
],
];
config/modules.config.php
return [
'Zend\Cache',
'Zend\Form',
'Zend\InputFilter',
'Zend\Filter',
'Zend\Paginator',
'Zend\Hydrator',
'Zend\Router',
'Zend\Validator',
'DoctrineModule',
'DoctrineORMModule',
'Application',
];
For Application Module,
module/Application/config/module.config.php
namespace Application;
use Zend\Router\Http\Literal;
use Zend\Router\Http\Segment;
use Zend\ServiceManager\Factory\InvokableFactory;
use Doctrine\ORM\Mapping\Driver\AnnotationDriver;
return [
'router' => [
'routes' => [
'home' => [
'type' => Literal::class,
'options' => [
'route' => '/',
'defaults' => [
'controller' => Controller\IndexController::class,
'action' => 'index',
],
],
],
'application' => [
'type' => Segment::class,
'options' => [
'route' => '/application[/:action]',
'defaults' => [
'controller' => Controller\IndexController::class,
'action' => 'index',
],
],
],
],
],
'controllers' => [
'factories' => [
Controller\IndexController::class => Controller\Factory\IndexControllerFactory::class,
],
],
'view_manager' => [
'display_not_found_reason' => true,
'display_exceptions' => true,
'doctype' => 'HTML5',
'not_found_template' => 'error/404',
'exception_template' => 'error/index',
'template_map' => [
'layout/layout' => __DIR__ . '/../view/layout/layout.phtml',
'application/index/index' => __DIR__ . '/../view/application/index/index.phtml',
'error/404' => __DIR__ . '/../view/error/404.phtml',
'error/index' => __DIR__ . '/../view/error/index.phtml',
],
'template_path_stack' => [
__DIR__ . '/../view',
],
],
'doctrine' => [
'driver' => [
__NAMESPACE__ . '_driver' => [
'class' => AnnotationDriver::class,
'cache' => 'array',
'paths' => [__DIR__ . '/../src/Entity']
],
'orm_default' => [
'drivers' => [
__NAMESPACE__ . '\Entity' => __NAMESPACE__ . '_driver'
]
]
]
]
];
My Controller (module/Application/src/Controller/IndexController.php) is :
namespace Application\Controller;
use Zend\Mvc\Controller\AbstractActionController;
use Zend\View\Model\ViewModel;
use Doctrine\ORM\EntityManager;
use Application\Entity\Concours;
class IndexController extends AbstractActionController {
/**
* Entity manager.
* #var Doctrine\ORM\EntityManager
*/
private $entityManager;
// Constructor method is used to inject dependencies to the controller.
public function __construct($entityManager)
{
$this->entityManager = $entityManager;
}
public function indexAction() {
return new ViewModel();
}
public function concoursAction(){
$concours=array();
$concours = $this->entityManager->getRepository(Concours::class);
// Render the view template
return new ViewModel([
'concours' => $concours
]);
}
}
And the associated Factory
namespace Application\Controller\Factory;
use Interop\Container\ContainerInterface;
use Zend\ServiceManager\Factory\FactoryInterface;
use Application\Controller\IndexController;
/**
* This is the factory for IndexController. Its purpose is to instantiate the
* controller.
*/
class IndexControllerFactory implements FactoryInterface
{
public function __invoke(ContainerInterface $container,
$requestedName, array $options = null)
{
$entityManager = $container->get('doctrine.entitymanager.orm_default');
// Instantiate the controller and inject dependencies
return new IndexController($entityManager);
}
}
All my Entities class files are in module/Application/src/Application/Entity/,
here is the Concours Entity Class:
<?php
namespace Application\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* Concours
*
* #ORM\Table(name="Concours", uniqueConstraints={#ORM\UniqueConstraint(name="numero_UNIQUE", columns={"numero"})})
* #ORM\Entity
*/
class Concours
{
/**
* #var integer
*
* #ORM\Column(name="ref", type="integer", nullable=false)
* #ORM\Id
* #ORM\GeneratedValue(strategy="IDENTITY")
*/
private $ref;
...
}

Answer 1

Here is your problem:
All my Entities class files are in
module/Application/src/Application/Entity/
Zend 3 uses PSR-4 instead of PSR-0 which is considered as depracated. You can confirm it by checking composer.json file. You should see following declaration:
"autoload": {
"psr-4": {
"Application\\": "module/Application/src/",
}
},
In PSR-0 if you define Foo\Bar namespace is achored in src/ it will look for class in src/Foo/Bar/{your_class}.php while in PSR-4 it will look in src/{your_class}.php.
So... to fix your problem. Move Concours entity from:
module/Application/src/Application/Entity/
to:
module/Application/src/Entity/