laravelcollective/annotations

Route Annotations for The Laravel Framework.

Thursday, March 1, 2018
by adamgoose
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The README.md

Annotations for The Laravel Framework

, _(*1)

Annotations

Installation
Scanning
Event Annotations
Route Annotations
Scanning Controllers
Model Annotations
Custom Annotations

, _(*2)

Installation

If you have changed the top-level namespace to something like 'MyCompany', then you would use the new namespace instead of 'App'., _(*3)

Begin by installing this package through Composer. Edit your project's composer.json file to require laravelcollective/annotations., _(*4)

"require": {
    "laravelcollective/annotations": "8.0.\*"
}

Next, update Composer from the Terminal:, _(*5)

composer update

Once composer is done, you'll need to create a Service Provider in app/Providers/AnnotationsServiceProvider.php., _(*6)

<?php namespace App\Providers;

use Collective\Annotations\AnnotationsServiceProvider as ServiceProvider;

class AnnotationsServiceProvider extends ServiceProvider {

    /**
     * The classes to scan for event annotations.
     *
     * @var array
     */
    protected $scanEvents = [];

    /**
     * The classes to scan for route annotations.
     *
     * @var array
     */
    protected $scanRoutes = [];

    /**
     * The classes to scan for model annotations.
     *
     * @var array
     */
    protected $scanModels = [];

    /**
     * Determines if we will auto-scan in the local environment.
     *
     * @var bool
     */
    protected $scanWhenLocal = false;

    /**
     * Determines whether or not to automatically scan the controllers
     * directory (App\Http\Controllers) for routes
     *
     * @var bool
     */
    protected $scanControllers = false;

    /**
     * Determines whether or not to automatically scan all namespaced
     * classes for event, route, and model annotations.
     *
     * @var bool
     */
    protected $scanEverything = false;

    /**
     * Determines whether to use attributes for scanning.
     *
     * @var bool
     */
    protected $useAttribute = false;

}

Finally, add your new provider to the providers array of config/app.php:, _(*7)

  'providers' => [
    // ...
    App\Providers\AnnotationsServiceProvider::class
    // ...
  ];

This doesn't replace the RouteServiceProvider, this is still required as this handles loading of the route cache etc., _(*8)

, _(*9)

Setting up Scanning

Add event handler classes to the protected $scanEvents array to scan for event annotations., _(*10)

    /**
     * The classes to scan for event annotations.
     *
     * @var array
     */
    protected $scanEvents = [
      App\Handlers\Events\MailHandler::class,
    ];

Add controllers to the protected $scanRoutes array to scan for route annotations., _(*11)

    /**
     * The classes to scan for route annotations.
     *
     * @var array
     */
    protected $scanRoutes = [
      App\Http\Controllers\HomeController::class,
    ];

Add models to the protected $scanModels array to scan for model annotations., _(*12)

    /**
     * The classes to scan for model annotations.
     *
     * @var array
     */
    protected $scanModels = [
      'App\User',
    ];

Alternatively, you can set protected $scanEverything to true to automatically scan all classes within your application's namespace. Note: This may increase the time required to execute the scanners, depending on the size of your application., _(*13)

Scanning your event handlers, controllers, and models can be done manually by using php artisan event:scan, php artisan route:scan, or php artisan model:scan respectively. In the local environment, you can scan them automatically by setting protected $scanWhenLocal = true., _(*14)

, _(*15)

Event Annotations

@Hears

The @Hears annotation registers an event listener for a particular event. Annotating any method with @Hears("SomeEventName") will register an event listener that will call that method when the SomeEventName event is fired., _(*16)

<?php namespace App\Handlers\Events;

use App\User;

class MailHandler {

  /**
   * Send welcome email to User
   * @Hears("UserWasRegistered")
   */
  public function sendWelcomeEmail(User $user)
  {
    // send welcome email to $user
  }

}

or if you prefer to use attributes, set $useAttribute to true and do this. Note that unlike annotations, a use statement is required for the attribute., _(*17)

<?php namespace App\Handlers\Events;

use App\User;
use Collective\Annotations\Events\Attributes\Attributes\Hears;

class MailHandler {

  #[Hears('UserWasRegistered')]
  public function sendWelcomeEmail(User $user)
  {
    // send welcome email to $user
  }

}

, _(*18)

Route Annotations

Route annotations can be incredibly powerful, however the order of your route definitions can impact how your application matches specific routes, specifically any wildcard routes. If protected $scanEverything is set to true, you will have no control over the order of your route definitions., _(*19)

@Get

The @Get annotation registeres a route for an HTTP GET request., _(*20)

<?php namespace App\Http\Controllers;

class HomeController {

  /**
   * Show the Index Page
   * @Get("/")
   */
  public function getIndex()
  {
    return view('index');
  }

}

You can also set up route names., _(*21)

  /**
   * @Get("/", as="index")
   */

   #[Get(path: '/', as: 'index')]

... or middlewares., _(*22)

  /**
   * @Get("/", middleware="guest")
   */

   #[Get(path: '/', middleware: 'guest')]

... or both., _(*23)

  /**
   * @Get("/", as="index", middleware="guest")
   */

   #[Get(path: '/', as: 'index', middleware: 'guest')]

Here's an example that uses all of the available parameters for a @Get annotation:, _(*24)

  /**
   * @Get("/profiles/{id}", as="profiles.show", middleware="guest", domain="foo.com", where={"id": "[0-9]+"}, no_prefix="true")
   */

   #[Get(path: '/profiles/{id}', as: 'profiles.show', middleware: 'guest', domain: 'foo.com', where: ['id' => '[0-9]+'], noPrefix: true)]

no_prefix allows any prefix added to the routes in that controller be ignored for this particular route., _(*25)

@Post, @Options, @Put, @Patch, @Delete, @any

The @Post, @Options, @Put, @Patch, @Delete, and @Any annotations have the exact same syntax as the @Get annotation, except it will register a route for the respective HTTP verb, as opposed to the GET verb., _(*26)

@Middleware

As well as defining middleware inline in the route definition tags (@Get, @Post, etc.), the @Middleware tag can be used on its own. It works both individual methods:, _(*27)

  /**
   * Show the Login Page
   *
   * @Get("login")
   * @Middleware("guest")
   */
  public function login()
  {
    return view('index');
  }

  #[Get(path: 'login')]
  #[Middleware(name: 'guest')]
  public function login()
  {
    return view('index');
  }

Or on a whole controller, with the same only/exclude filter syntax that you can use elsewhere in laravel:, _(*28)

/**
 * @Middleware("guest", except={"logout"}, prefix="/your/prefix")
 */
class AuthController extends Controller {

  /**
   * Log the user out.
   *
   * @Get("logout", as="logout")
   * @Middleware("auth")
   *
   * @return Response
   */
  public function logout()
  {
    $this->auth->logout();

    return redirect( route('login') );
  }

}

#[Middleware(name: 'guest', except: ['logout'], prefix: '/your/prefix')]
class AuthController extends Controller {

  #[Get(path: 'logout', as: 'logout')]
  #[Middleware(name: 'auth')]
  public function logout()
  {
    $this->auth->logout();

    return redirect( route('login') );
  }

}

@Resource

Using the @Resource annotation on a controller allows you to easily set up a Resource Controller., _(*29)

<?php
/**
 * @Resource('users')
 */
class UsersController extends Controller {
  // index(), create(), store(), show($id), edit($id), update($id), destroy($id)
}

You can specify the only and except arguments, just like you can with the regular Route::resource() command., _(*30)

  /**
   * @Resource('users', only={"index", "show"})
   */

   #[Resource('users', only: ['index', 'show'])]

You can also specify the route names of each resource method., _(*31)

  /**
   * @Resource('users', names={"index"="user.all", "show"="user.view"})
   */

   #[Resource('users', names: ['index' => 'user.all', 'show' => 'user.view'])]

@Controller

Using the @Controller annotation on a controller allows you to set various options for the routes contained in it:, _(*32)

<?php
/**
 * @Controller(prefix="admin", domain="foo.com")
 */
class AdminController extends Controller {
  // All routes will be prefixed by admin/
}

#[Controller(prefix: 'admin', domain: 'foo.com')]
class AdminController extends Controller {
  // All routes will be prefixed by admin/
}

, _(*33)

Scan the Controllers Directory

To recursively scan the entire controllers namespace ( App\Http\Controllers ), you can set the $scanControllers flag to true., _(*34)

It will automatically adjust App to your app's namespace., _(*35)

    $scanControllers = true;

Advanced

If you want to use any logic to add classes to the list to scan, you can override the routeScans() or eventScans() methods., _(*36)

The following is an example of adding a controller to the scan list if the current environment is local:, _(*37)

public function routeScans() {
    $classes = parent::routeScans();

    if ( $this->app->environment('local') ) {
        $classes = array_merge($classes, [App\Http\Controllers\LocalOnlyController::class]);
    }

    return $classes;
}

Scanning Namespaces

You can use the getClassesFromNamespace( $namespace ) method to recursively add namespaces to the list. This will scan the given namespace. It only works for classes in the app directory, and relies on the PSR-4 namespacing standard., _(*38)

This is what the $scanControllers flag uses with the controllers directory., _(*39)

Here is an example that builds on the last one - adding a whole local-only namespace., _(*40)

public function routeScans() {
    $classes = parent::routeScans();

    if ( $this->app->environment('local') ) {
        $classes = array_merge(
            $classes,
            $this->getClassesFromNamespace( App\Http\Controllers\Local::class )
        );
    }

    return $classes;
}

, _(*41)

Model Annotations

You can use annotations to automatically bind your models to route parameters, using Route Model Binding. To do this, use the @Bind annotation., _(*42)

/**
 * @Bind("users")
 */
class User extends Eloquent {
  //
}

#[Bind('users')]
class User extends Eloquent {
  //
}

This is the equivalent of calling Route::model('users', 'App\Users')., _(*43)

, _(*44)

Custom Annotations

Please Note: the namespaces have been updated in version 8.1 in order to allow PHP 8 attribute support., _(*45)

If you want to register your own annotations, create a namespace containing subclasses of Collective\Annotations\Routing\Meta - let's say App\Http\Annotations.\ (For version 8.0 and older, extend Collective\Annotations\Routing\Annotations\Annotations\Annotation), _(*46)

Then, in your annotations service provider, override the addRoutingAnnotations( RouteScanner $scanner ) method, and register your routing annotations namespace:, _(*47)

<?php namespace App\Providers;

use Collective\Annotations\Routing\Scanner as RouteScanner;
# For version 8.0 and older use this instead of the above:
# use Collective\Annotations\Routing\Annotations\Scanner as RouteScanner;

/* ... then, in the class definition ... */

    /**
     * Add annotation classes to the route scanner
     *
     * @param RouteScanner $namespace
     */
    public function addRoutingAnnotations( RouteScanner $scanner )
    {
      $scanner->addAnnotationNamespace( 'App\Http\Annotations' );
    }

Your annotation classes must have the @Annotation class annotation (see the following example)., _(*48)

There is an equivalent method for event annotations: addEventAnnotations( EventScanner $scanner )., _(*49)

Custom Annotation Example

Here is an example to make an @Auth annotation. It provides the same functionality as using the annotation @Middleware("auth")., _(*50)

In a namespace - in this example, App\Annotations:, _(*51)

<?php namespace App\Http\Annotations;

use Collective\Annotations\Routing\Meta;
# For version 8.0 and older use this instead of the above:
# use Collective\Annotations\Routing\Annotations\Annotations\Annotation;
use Collective\Annotations\Routing\Annotations\MethodEndpoint;
use ReflectionMethod;

/**
 * @Annotation
 */
class Auth extends Annotation {

  /**
   * {@inheritdoc}
   */
  public function modify(MethodEndpoint $endpoint, ReflectionMethod $method)
  {
    if ($endpoint->hasPaths())
    {
      foreach ($endpoint->getPaths() as $path)
      {
        $path->middleware = array_merge($path->middleware, (array) 'auth');
      }
    }
    else
    {
      $endpoint->middleware = array_merge($endpoint->middleware, (array) 'auth');
    }
  }

}

The Versions

01/03 2018

dev-master

9999999-dev http://laravelcollective.com

Route Annotations for The Laravel Framework.

library annotations

Route Annotations for The Laravel Framework.

laravelcollective/annotations

The README.md

Annotations for The Laravel Framework

Annotations

Installation

Setting up Scanning

Event Annotations

@Hears

Route Annotations

@Get

@Post, @Options, @Put, @Patch, @Delete, @any

@Middleware

@Resource

@Controller

Scan the Controllers Directory

Advanced

Scanning Namespaces

Model Annotations

Custom Annotations

Custom Annotation Example

The Versions

dev-master

The Requires

The Development Requires

by Taylor Otwell

by Adam Engebretson

5.6.x-dev

The Requires

The Development Requires

by Taylor Otwell

by Adam Engebretson

v5.6

The Requires

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by Taylor Otwell

by Adam Engebretson

5.5.x-dev

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by Taylor Otwell

by Adam Engebretson

v5.5

The Requires

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by Taylor Otwell

by Adam Engebretson

5.4.x-dev

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by Taylor Otwell

by Adam Engebretson

v5.4.2

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by Taylor Otwell

by Adam Engebretson

v5.4.1

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by Taylor Otwell

by Adam Engebretson

v5.4.0

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The Development Requires

by Taylor Otwell

by Adam Engebretson

5.3.x-dev

The Requires

The Development Requires

by Taylor Otwell

by Adam Engebretson

v5.3.0

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The Development Requires

by Taylor Otwell

by Adam Engebretson

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