Symfony3 Hook Up Annotation Routes

Question

I'm writing my own PHP framework built on top of Symfony components as a learning exercise. I followed the tutorial found at http://symfony.com/doc/current/create_framework/index.html to create my framework.

I'd now like to wire up my routes against my controllers using annotations. I currently have the following code to setup the routing:

// Create the route collection
$routes = new RouteCollection();

$routes->add('home', new Route('/{slug}', [
    'slug' => '',
    '_controller' => 'Controllers\HomeController::index',
]));

// Create a context using the current request
$context = new RequestContext();
$context->fromRequest($request);

// Create the url matcher
$matcher = new UrlMatcher($routes, $context);

// Try to get a matching route for the request
$request->attributes->add($matcher->match($request->getPathInfo()));

I have come across the following class to load the annotations but I'm not sure how to use it:

https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Routing/Loader/AnnotationDirectoryLoader.php

I'd appreciate it if someone could help.

Thanks

Answer 1

I've finally managed to get this working. First I changed where I included the autoload.php file to the following:

use Doctrine\Common\Annotations\AnnotationRegistry;

$loader = require __DIR__ . '/../vendor/autoload.php';

AnnotationRegistry::registerLoader([$loader, 'loadClass']);

Then I changed the routes collection bit (in the question) to:

$reader = new AnnotationReader();

$locator = new FileLocator();
$annotationLoader = new AnnotatedRouteControllerLoader($reader);

$loader = new AnnotationDirectoryLoader($locator, $annotationLoader);
$routes = $loader->load(__DIR__ . '/../Controllers'); // Path to the app's controllers

Here's the code for the AnnotatedRouteControllerLoader:

class AnnotatedRouteControllerLoader extends AnnotationClassLoader {
    protected function configureRoute(Route $route, ReflectionClass $class, ReflectionMethod $method, $annot) {
        $route->setDefault('_controller', $class->getName() . '::' . $method->getName());
    }
}

This has been taken from https://github.com/sensiolabs/SensioFrameworkExtraBundle/blob/master/Routing/AnnotatedRouteControllerLoader.php. You may wish to modify it to support additional annotations.

I hope this helps.