{"id":51,"date":"2024-02-01T17:32:07","date_gmt":"2024-02-01T17:32:07","guid":{"rendered":"https:\/\/czerniejewski.pl\/?p=51"},"modified":"2024-02-01T17:32:59","modified_gmt":"2024-02-01T17:32:59","slug":"data-transfer-objects-dto","status":"publish","type":"post","link":"https:\/\/czerniejewski.pl\/index.php\/2024\/02\/01\/data-transfer-objects-dto\/","title":{"rendered":"Data Transfer Objects (DTO)"},"content":{"rendered":"\n<p>Najprostszy wzorzec a zbyt cz\u0119sto nie u\u017cywany. Pomaga zebra\u0107 dane w jednego\/kilku \u017ar\u00f3de\u0142 i wsadzi\u0107 do jednego obiektu. Mo\u017cna oczywi\u015bcie zrobi\u0107\u00a0to <code>array<\/code>, ale nie jest znormalizowany. Array wszystko przyjmie i wszystko odda. Poka\u017ce przyk\u0142ad rejestracji u\u017cytkownika.<\/p>\n\n\n\n<p>Stw\u00f3rzmy DTO do rejestracji u\u017cytkownika:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>readonly class RegisterUser\n{\n    private function __construct(\n        private string $email,\n        private string $password\n    ) { }\n\n    public static function fromArray(array $data): self\n    {\n        return new self(\n            $data&#91;'email'],\n            $data&#91;'password']\n        );\n    }\n\n    public function getEmail(): string\n    {\n        return $this->email;\n    }\n\n    public function getPassword(): string\n    {\n        return $this->password;\n    }\n}<\/code><\/pre>\n\n\n\n<p>Controller i service do obs\u0142ugi rejestracji<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>interface UserService\n{\n    public function register(RegisterUser $input): void;\n}<\/code><\/pre>\n\n\n\n<pre class=\"wp-block-code\"><code>readonly class UserController extends Controller\n{\n    public function __construct(private UserService $service)\n    {\n    }\n\n    public function register(RegistrationRequest $request): Response\n    {\n        $dto = RegisterUser::fromArray($request->validated());\n        $this->service->register($dto);\n\n        return response()->noContent();\n    }\n}<\/code><\/pre>\n\n\n\n<p>Jakie s\u0105 plusy tego podej\u015bcia?<br><br>Kod staj\u0119\u00a0si\u0119\u00a0bardziej <code>open\/close<\/code>. Je\u017celi do rejestracji musimy doda\u0107 numer telefonu nie ma problemy, modyfikujemy tylko DTO i dane ju\u017c mo\u017cemy odebra\u0107 w <code>UserService<\/code>. Nie musimy dodawa\u0107 kolejnego parametru w interfejsie i klasie.<\/p>\n\n\n\n<p>Wiadomo jakie dane posiada DTO i jakie typy zwr\u00f3ci. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Najprostszy wzorzec a zbyt cz\u0119sto nie u\u017cywany. Pomaga zebra\u0107 dane w jednego\/kilku \u017ar\u00f3de\u0142 i wsadzi\u0107 do jednego obiektu. Mo\u017cna oczywi\u015bcie [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[9,4],"tags":[3],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Data Transfer Objects (DTO) - Marian Czerniejewski<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/czerniejewski.pl\/index.php\/2024\/02\/01\/data-transfer-objects-dto\/\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Data Transfer Objects (DTO) - Marian Czerniejewski\" \/>\n<meta property=\"og:description\" content=\"Najprostszy wzorzec a zbyt cz\u0119sto nie u\u017cywany. 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