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XOOPS의 종속성 주입

:::참고[버전 호환성]

기능XOOPS 2.5.xXOOPS 4.0
수동 DI(생성자 주입)✅ 이용 가능✅ 이용 가능
PSR-11 컨테이너❌ 내장되지 않음✅ 기본 지원
\Xmf\Module\Helper::getContainer()❌ 4.0 전용✅ 이용 가능

XOOPS 2.5.x에서는 수동 생성자 주입(종속성을 명시적으로 전달)을 사용합니다. 아래 PSR-11 컨테이너 예제는 XOOPS 4.0용입니다. :::

DI(종속성 주입)는 구성 요소가 내부적으로 종속성을 생성하는 대신 외부 소스로부터 종속성을 수신할 수 있도록 하는 디자인 패턴입니다. XOOPS 4.0에는 PSR-11 호환 DI 컨테이너 지원이 도입되었습니다.

class ArticleService
{
private ArticleRepository $repository;
private EventDispatcher $dispatcher;
public function __construct()
{
// Hard dependencies - difficult to test and modify
$this->repository = new ArticleRepository(new XoopsDatabase());
$this->dispatcher = new EventDispatcher();
}
}
class ArticleService
{
public function __construct(
private readonly ArticleRepositoryInterface $repository,
private readonly EventDispatcherInterface $dispatcher
) {}
}
use Psr\Container\ContainerInterface;
// Get the container
$container = \Xmf\Module\Helper::getHelper('mymodule')->getContainer();
// Retrieve a service
$articleService = $container->get(ArticleService::class);
// Check if service exists
if ($container->has(ArticleService::class)) {
// Use the service
}
config/services.php
use Psr\Container\ContainerInterface;
return [
// Simple class instantiation
ArticleRepository::class => ArticleRepository::class,
// Interface to implementation binding
ArticleRepositoryInterface::class => ArticleRepository::class,
// Factory function
ArticleService::class => function (ContainerInterface $c): ArticleService {
return new ArticleService(
$c->get(ArticleRepositoryInterface::class),
$c->get(EventDispatcherInterface::class)
);
},
// Shared instance (singleton)
'database' => function (): XoopsDatabase {
return XoopsDatabaseFactory::getDatabaseConnection();
},
];
// The container automatically resolves dependencies
// when type hints are available
class ArticleController
{
public function __construct(
private readonly ArticleService $service,
private readonly ViewRenderer $renderer
) {}
}
// Container creates ArticleController with its dependencies
$controller = $container->get(ArticleController::class);
config/services.php
return [
ArticleService::class => [
'class' => ArticleService::class,
'arguments' => [
ArticleRepositoryInterface::class,
EventDispatcherInterface::class,
],
'shared' => true, // Singleton
],
'article.handler' => [
'factory' => [ArticleHandlerFactory::class, 'create'],
'arguments' => ['@database'], // Reference other service
],
];
final class ArticleService
{
public function __construct(
private readonly ArticleRepositoryInterface $repository,
private readonly EventDispatcherInterface $dispatcher,
private readonly LoggerInterface $logger
) {}
public function create(CreateArticleDTO $dto): Article
{
$this->logger->info('Creating article', ['title' => $dto->title]);
$article = Article::create($dto);
$this->repository->save($article);
$this->dispatcher->dispatch(new ArticleCreatedEvent($article));
return $article;
}
}
class ArticleController
{
public function __construct(
private readonly ArticleService $service
) {}
public function show(int $id, ?CacheInterface $cache = null): Response
{
$cacheKey = "article_{$id}";
if ($cache && $cached = $cache->get($cacheKey)) {
return $this->render($cached);
}
$article = $this->service->findById($id);
$cache?->set($cacheKey, $article, 3600);
return $this->render($article);
}
}
interface ArticleRepositoryInterface
{
public function findById(int $id): ?Article;
public function save(Article $article): void;
public function delete(Article $article): void;
}
config/services.php
return [
ArticleRepositoryInterface::class => XoopsArticleRepository::class,
// Or with factory
ArticleRepositoryInterface::class => function (ContainerInterface $c) {
return new XoopsArticleRepository(
$c->get('database')
);
},
];
class ArticleServiceTest extends TestCase
{
public function testCreateArticle(): void
{
// Create mocks
$repository = $this->createMock(ArticleRepositoryInterface::class);
$dispatcher = $this->createMock(EventDispatcherInterface::class);
$logger = $this->createMock(LoggerInterface::class);
// Inject mocks
$service = new ArticleService($repository, $dispatcher, $logger);
// Set expectations
$repository->expects($this->once())->method('save');
$dispatcher->expects($this->once())->method('dispatch');
// Test
$dto = new CreateArticleDTO('Title', 'Content');
$article = $service->create($dto);
$this->assertInstanceOf(Article::class, $article);
}
}
// Get service from container in legacy code
function mymodule_get_articles(int $limit): array
{
$container = \Xmf\Module\Helper::getHelper('mymodule')->getContainer();
$service = $container->get(ArticleService::class);
return $service->findRecent($limit);
}
config/services.php
return [
'article.handler' => function () {
return xoops_getModuleHandler('article', 'mymodule');
},
ArticleRepositoryInterface::class => function (ContainerInterface $c) {
return new LegacyArticleRepository(
$c->get('article.handler')
);
},
];
  1. 인터페이스 주입 - 구현이 아닌 추상화에 의존
  2. 생성자 주입 - setter 주입보다 생성자를 선호합니다.
  3. 단일 책임 - 각 클래스에는 종속성이 거의 없어야 합니다.
  4. 컨테이너 인식 방지 - 서비스는 컨테이너에 대해 알 수 없어야 합니다.
  5. 코딩하지 말고 구성하세요 - 배선에 구성 파일을 사용하세요.

-../07-XOOPS-4.0/Implementation-Guides/PSR-11-Dependency-Injection-Guide - PSR-11 구현 -../03-모듈-개발/패턴/서비스-레이어 - 서비스 패턴 -../03-모듈 개발/모범 사례/테스트 - DI를 사용한 테스트 -../07-XOOPS-4.0/XOOPS-4.0-Architecture - 아키텍처 개요