New in Symfony 6.2: Built-in Cache, Security, Template and Doctrine Attributes

Symfony 6.2 will be released at the end of November 2022. This is the first
article of the series that shows the most important new features introduced by
Symfony 6.2.

Contributed by
Nicolas Grekas
and Jérémy Derussé
in #43854,
and #46907.

Symfony introduced annotations to configure cache, security, templates and
Doctrine more than 10 years ago. They were available via an external bundle
called SensioFrameworkExtraBundle.

With the introduction of PHP attributes, we turned those annotations into
attributes. However, you still had to install sensio/framework-extra-bundle
package to use them. For example:

use SensioBundleFrameworkExtraBundleConfigurationIsGranted;
use SensioBundleFrameworkExtraBundleConfigurationParamConverter;
use SymfonyComponentRoutingAnnotationRoute;

#[Route(‚/comment/{postSlug}/new‘, methods: [‚POST‘], name: ‚comment_new‘)]
#[ParamConverter(‚post‘, options: [‚mapping‘ => [‚postSlug‘ => ’slug‘]])]
public function addComment(Request $request, Post $post): Response
// …

In Symfony 6.2, we’ve introduced #[IsGranted], #[Cache], #[Template]
and #[ParamConverter] as native attributes, so you no longer need to
install any external package to use them.

In most applications, you will only need to update the imported namespace,
without having to change anything in your code:

-use SensioBundleFrameworkExtraBundleConfigurationIsGranted;
+use SymfonyComponentSecurityHttpAttributeIsGranted;
-use SensioBundleFrameworkExtraBundleConfigurationCache;
+use SymfonyComponentHttpKernelAttributeCache;

However, if you use #[ParamConverter], you’ll need to make some changes to
turn it into the new #[MapEntity] attribute. The new attribute is applied to
properties, instead of to the entire method:

-use SensioBundleFrameworkExtraBundleConfigurationParamConverter;
+use SymfonyBridgeDoctrineAttributeMapEntity;

// …
-#[ParamConverter(‚post‘, options: [‚mapping‘ => [‚postSlug‘ => ’slug‘]])]
-public function addComment(Request $request, Post $post): Response
+public function addComment(
+ Request $request,
+ #[MapEntity(mapping: [‚postSlug‘ => ’slug‘])] Post $post
+): Response
// …

We believe that PHP attributes are a great way to add metadata configuration to
code. However, if you don’t like them, you can skip them and keep configuring
things in XML/YAML or directly in PHP code.

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