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@JavierCane
Last active March 21, 2019 11:53
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<?php
declare(strict_types = 1);
// ******************************************************
// ******************************************************
// 💩🔴✋ HERENCIA ✋🔴💩
// ******************************************************
// ******************************************************
// namespace MySompany\MyProject\Infrastructure;
abstract class Controller
{
protected function sendEmail(string $to, string $subject, string $content): void
{
// Envía email vía API Sendgrid
}
protected function saveOnDb(array $data): void
{
// Guarda datos en MySQL vía PDO
}
// …
}
// namespace MySompany\MyProject\Infrastructure;
// use MySompany\MyProject\Infrastructure\Controller;
// POST miwebmolona.com/users/
/**
* @method(result)
*/
final class UserPostController extends Controller
{
public function __invoke(array $request): void
{
parent::saveOnDb($request);
parent::sendEmail($request['user_email']);
}
}
// ******************************************************
// ******************************************************
// 🤔☝️ ¿COMPOSICIÓN? ☝️🤔
// ******************************************************
// ******************************************************
// namespace MySompany\MyProject\Infrastructure;
final class SendgridEmailSender
{
public function __invoke(string $to, string $subject, string $content): void
{
// Envía email vía API Sendgrid
}
}
// namespace MySompany\MyProject\Infrastructure;
// use MySompany\MyProject\Infrastructure\SendgridEmailSender;
// use MySompany\MyProject\Infrastructure\DbConnection;
final class VideoPutController
{
private $emailSender;
private $dbConnection;
public function __construct()
{
$this->emailSender = new SendgridEmailSender();
$this->dbConnection = new DbConnection(
[
'user' => 'root',
'pass' => 'toor',
'port' => '3306'
]
);
}
public function __invoke(array $request): void
{
$this->dbConnection->save($request);
$this->emailSender->__invoke($request['creator_email']);
}
}
array_map($userPostController, $requests);
// ******************************************************
// ******************************************************
// 😬👌 COMPOSICIÓN INYECTANDO DEPS 👌😬
// ******************************************************
// ******************************************************
// namespace MySompany\MyProject\Infrastructure;
// use MySompany\MyProject\Infrastructure\SendgridEmailSender; // ☝️ Nos acoplamos a la implementación concreta
// use MySompany\MyProject\Infrastructure\DbConnection;
final class UserPatchController
{
private $emailSender;
private $dbConnection;
public function __construct(
SendgridEmailSender $emailSender,
DbConnection $dbConnection
) {
$this->emailSender = $emailSender;
$this->dbConnection = $dbConnection;
}
public function __invoke(array $request): void
{
$this->dbConnection->save($request);
$this->emailSender->__invoke($request['user_email']);
}
}
// ******************************************************
// ******************************************************
// 🤟🔝🙌 COMPOSICIÓN INVIRTIENDO DEPS 🔝🙌🤟
// ******************************************************
// ******************************************************
// namespace MySompany\MyProject\Domain;
interface EmailSender
{
public function __invoke(string $to, string $subject, string $content): void;
}
// namespace MySompany\MyProject\Infrastructure;
// use MySompany\MyProject\Domain\EmailSender;
final class SendgridEmailSender implements EmailSender
{
public function __invoke(string $to, string $subject, string $content): void
{
// Envía email vía API Sendgrid
}
}
// namespace MySompany\MyProject\Infrastructure;
// use MySompany\MyProject\Domain\EmailSender; // ☝️ Nos acoplamos a la interface, no a la implementación concreta
final class UserPatchController
{
private $emailSender;
private $dbConnection;
public function __construct(
EmailSender $emailSender,
DbConnection $dbConnection
) {
$this->emailSender = $emailSender;
$this->dbConnection = $dbConnection;
}
public function __invoke(array $request): void
{
$this->dbConnection->save($request);
$this->emailSender->__invoke($request['user_email']);
}
}
final class ProductionContainer
{
//$emailSender = new SendgridEmailSender(); // ☝️ Podemos cambiar la implementación de la interface que usamos sin modificar cliente (UserPatchController)
$emailSender = new MandrillEmailSender();
$dbConnection = new DbConnection(['…']);
$userPostController = new UserPatchController($emailSender, $dbConnection);
}
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