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<?php |
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declare(strict_types=1); |
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namespace Shoot\Shoot\Middleware; |
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use Psr\Container\ContainerExceptionInterface; |
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use Psr\Container\ContainerInterface; |
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use Psr\Http\Message\ServerRequestInterface; |
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use Shoot\Shoot\HasPresenterInterface; |
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use Shoot\Shoot\MiddlewareInterface; |
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use Shoot\Shoot\PresenterInterface; |
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use Shoot\Shoot\View; |
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/** |
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* Resolves presenters for presentation models implementing the HasPresenterInterface using a PSR-11 compliant |
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* container. |
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*/ |
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final class PresenterMiddleware implements MiddlewareInterface |
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{ |
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/** @var ContainerInterface */ |
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private $container; |
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/** |
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* Constructs a new instance of PresenterMiddleware. Requires a PSR-11 compliant container capable of resolving |
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* your presenters. |
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* |
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* @param ContainerInterface $container |
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*/ |
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public function __construct(ContainerInterface $container) |
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{ |
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$this->container = $container; |
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} |
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/** |
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* Process the view within the context of the current HTTP request, either before or after calling the next |
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* middleware. Returns the processed view. |
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* |
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* @param View $view |
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* @param ServerRequestInterface $request |
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* @param callable $next |
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* |
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* @return View |
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*/ |
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public function process(View $view, ServerRequestInterface $request, callable $next): View |
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{ |
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$presentationModel = $view->getPresentationModel(); |
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if ($presentationModel instanceof HasPresenterInterface) { |
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$presenter = $this->loadPresenter($presentationModel); |
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$presentationModel = $presenter->present($request, $presentationModel); |
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$view = $view->withPresentationModel($presentationModel); |
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} |
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return $next($view); |
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} |
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/** |
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* @param HasPresenterInterface $hasPresenter |
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* |
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* @return PresenterInterface |
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* |
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* @throws ContainerExceptionInterface |
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*/ |
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private function loadPresenter(HasPresenterInterface $hasPresenter): PresenterInterface |
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{ |
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return $this->container->get($hasPresenter->getPresenterName()); |
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} |
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} |
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shootphp /
shoot
