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Commit77f2876

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minor#8986 Removed invalid examples (TheDevilOnLine, Tom Maaswinkel, javiereguiluz)
This PR was merged into the 4.0 branch.Discussion----------Removed invalid examplesTemplating isn't a service in Symfony 4+ (even after `composer req templating`), so probably we're looking for the twig service.The Router service isn't public and can therefor not be called from the container:```$ php bin/console debug:container router // This service is an alias for the service router.defaultInformation for Service "router.default"======================================== ---------------- ----------------------------------------------- Option Value ---------------- ----------------------------------------------- Service ID router.default Class Symfony\Bundle\FrameworkBundle\Routing\Router Tags - Calls setConfigCacheFactory Public no Synthetic no Lazy no Shared yes Abstract no Autowired no Autoconfigured no ---------------- -----------------------------------------------```Commits-------3492028 Use controller method injection instead of the constructorf9091b0 Updated documentation to reflect best practice of using Dependency Injection over Container. Includes changes from PR#898518e6d9e Removed "Accessing the Container Directly"89e38ef Removed invalid examples
2 parents81e8a4d +3492028 commit77f2876

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‎best_practices/security.rst‎

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@@ -238,12 +238,20 @@ more advanced use-case, you can always do the same security check in PHP:
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// equivalent code without using the "denyAccessUnlessGranted()" shortcut:
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//
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// use Symfony\Component\Security\Core\Exception\AccessDeniedException;
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// use Symfony\Component\Security\Core\Authorization\AuthorizationCheckerInterface
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//
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// ...
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//
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// public function __construct(AuthorizationCheckerInterface $authorizationChecker) {
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// $this->authorizationChecker = $authorizationChecker;
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// }
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//
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// ...
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//
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// if (!$this->get('security.authorization_checker')->isGranted('edit', $post)) {
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// if (!$this->authorizationChecker->isGranted('edit', $post)) {
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// throw $this->createAccessDeniedException();
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// }
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//
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// ...
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}
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@@ -357,14 +365,22 @@ via the even easier shortcut in a controller:
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$this->denyAccessUnlessGranted('edit', $post);
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// or without the shortcut:
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//
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// use Symfony\Component\Security\Core\Exception\AccessDeniedException;
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// use Symfony\Component\Security\Core\Authorization\AuthorizationCheckerInterface
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//
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// ...
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//
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// if (!$this->get('security.authorization_checker')->isGranted('edit', $post)) {
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// public function __construct(AuthorizationCheckerInterface $authorizationChecker) {
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// $this->authorizationChecker = $authorizationChecker;
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// }
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//
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// ...
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//
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// if (!$this->authorizationChecker->isGranted('edit', $post)) {
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// throw $this->createAccessDeniedException();
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// }
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//
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// ...
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}
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Learn More

‎controller.rst‎

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For more information about services, see the:doc:`/service_container` article.
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.. _controller-access-services-directly:
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Accessing the Container Directly
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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If you extend the base ``Controller`` class, you can access:ref:`public services<container-public>`
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via the:method:`Symfony\\Bundle\\FrameworkBundle\\Controller\\Controller::get`
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method. Here are several common services you might need::
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$templating = $this->get('templating');
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$router = $this->get('router');
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$mailer = $this->get('mailer');
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// you can also fetch parameters
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$someParameter = $this->getParameter('some_parameter');
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If you receive an error like:
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..code-block::text
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You have requested a non-existent service "my_service_id"
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Check to make sure the service exists (use:ref:`debug:container<container-debug-container>`)
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and that it's:ref:`public<container-public>`.
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..index::
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single: Controller; Managing errors
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single: Controller; 404 pages

‎doctrine/multiple_entity_managers.rst‎

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// ...
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use Doctrine\ORM\EntityManagerInterface;
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class UserController extends Controller
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{
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public function indexAction()
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public function indexAction(EntityManagerInterface $em)
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{
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// All 3 return the "default" entity manager
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// These methods also return the default entity manager, but it's preferred
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// to get it by inyecting EntityManagerInterface in the action method
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$em = $this->getDoctrine()->getManager();
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$em = $this->getDoctrine()->getManager('default');
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$em = $this->get('doctrine.orm.default_entity_manager');

‎routing.rst‎

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The ``generate()`` method takes an array of wildcard values to generate the URI.
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But if you pass extra ones, they will be added to the URI as a query string::
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$this->get('router')->generate('blog', array(
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$this->router->generate('blog', array(
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'page' => 2,
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'category' => 'Symfony'
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));

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