ziadoz · October 25, 2024 14:53
diff --git a/web.php b/web.php
 <?php

 use Illuminate\Contracts\Container\Container;
 use Illuminate\Contracts\Container\ContextualAttribute;
 use Illuminate\Support\Facades\Route;

 /** 
 * Create a new contextual attribute that grabs fields from the request POST data.
 *
 * The equivalent of doing `$request->post($key, $default)` in a controller.
 */
 #[Attribute(Attribute::TARGET_PARAMETER)]
 class Post implements ContextualAttribute
 {
    public function __construct(public string $key, public string|array|null $default = null)
    {
    }

    public static function resolve(self $attribute, Container $container): mixed
    {
        return $container->make('request')->post($attribute->key, $attribute->default);
    }
 }

 /**
 * Create a simple data object that accepts some parameters.
 *
 * Tell Laravel which fields in the POST data they should be pulled from via the contextual attribute.
 */
 class MyUserData
 {
    public function __construct(
        #[Post('name')] public string $name,
        #[Post('age')] public int $age,
        #[Post('hobbies')] public array $hobbies = [],
    ) {
    }
 }

 /**
 * Create a route that returns a form.
 */
 Route::get('/user', function () {
    $token = csrf_token();

    return <<<HTML
    <form method="post">
        Name: <input name="name">
        Age: <input name="age">
        Hobbies: <input name="hobbies[]"><input name="hobbies[]">
        <input name="_token" type="hidden" value="$token">
        <button>Save</button>
    </form>
    HTML;
 });

 /**
 * Create a route that accepts the data object, and dump it and the request out for comparison.
 *
 * In a real application you'd have a form validator to ensure the data is valid.
 */
 Route::post('/user', function (MyUserData $data) {
    dump(request()->post(), $data);
 });
	<?php

	use Illuminate\Contracts\Container\Container;
	use Illuminate\Contracts\Container\ContextualAttribute;
	use Illuminate\Support\Facades\Route;

	/**
	* Create a new contextual attribute that grabs fields from the request POST data.
	*
	* The equivalent of doing `$request->post($key, $default)` in a controller.
	*/
	#[Attribute(Attribute::TARGET_PARAMETER)]
	class Post implements ContextualAttribute
	{
	public function __construct(public string $key, public string\|array\|null $default = null)
	{
	}

	public static function resolve(self $attribute, Container $container): mixed
	{
	return $container->make('request')->post($attribute->key, $attribute->default);
	}
	}

	/**
	* Create a simple data object that accepts some parameters.
	*
	* Tell Laravel which fields in the POST data they should be pulled from via the contextual attribute.
	*/
	class MyUserData
	{
	public function __construct(
	#[Post('name')] public string $name,
	#[Post('age')] public int $age,
	#[Post('hobbies')] public array $hobbies = [],
	) {
	}
	}

	/**
	* Create a route that returns a form.
	*/
	Route::get('/user', function () {
	$token = csrf_token();

	return <<<HTML
	<form method="post">
	Name: <input name="name">
	Age: <input name="age">
	Hobbies: <input name="hobbies[]"><input name="hobbies[]">
	<input name="_token" type="hidden" value="$token">
	<button>Save</button>
	</form>
	HTML;
	});

	/**
	* Create a route that accepts the data object, and dump it and the request out for comparison.
	*
	* In a real application you'd have a form validator to ensure the data is valid.
	*/
	Route::post('/user', function (MyUserData $data) {
	dump(request()->post(), $data);
	});