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<?php |
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declare(strict_types=1); |
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namespace Damax\Common\Bridge\Symfony\Bundle\Listener; |
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use Pagerfanta\Pagerfanta; |
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use Psr\Link\EvolvableLinkProviderInterface; |
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use Symfony\Component\EventDispatcher\EventSubscriberInterface; |
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use Symfony\Component\HttpKernel\Event\ResponseEvent; |
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use Symfony\Component\HttpKernel\Event\ViewEvent; |
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use Symfony\Component\HttpKernel\KernelEvents; |
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use Symfony\Component\Routing\Generator\UrlGeneratorInterface; |
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use Symfony\Component\WebLink\GenericLinkProvider; |
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use Symfony\Component\WebLink\Link; |
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class PaginationListener implements EventSubscriberInterface |
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{ |
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private $urlGenerator; |
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public function __construct(UrlGeneratorInterface $urlGenerator) |
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{ |
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$this->urlGenerator = $urlGenerator; |
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} |
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public static function getSubscribedEvents(): array |
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{ |
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return [ |
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KernelEvents::VIEW => ['onKernelView', 8], |
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KernelEvents::RESPONSE => 'onKernelResponse', |
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]; |
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} |
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public function onKernelView(ViewEvent $event) |
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{ |
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$paginator = $event->getControllerResult(); |
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if (!$event->isMasterRequest() || !$paginator instanceof Pagerfanta) { |
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return; |
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} |
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$attributes = $event->getRequest()->attributes; |
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$route = $attributes->get('_route'); |
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$params = $attributes->get('_route_params', []); |
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/** @var EvolvableLinkProviderInterface $linkProvider */ |
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$linkProvider = $attributes->get('_links', new GenericLinkProvider()); |
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foreach ($this->getPages($paginator) as $rel => $page) { |
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$href = $this->urlGenerator->generate($route, $params + ['page' => $page], UrlGeneratorInterface::ABSOLUTE_URL); |
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$linkProvider = $linkProvider->withLink(new Link($rel, $href)); |
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} |
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$attributes->set('_links', $linkProvider); |
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$attributes->set('_pager', $paginator); |
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} |
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public function onKernelResponse(ResponseEvent $event) |
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{ |
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$paginator = $event->getRequest()->attributes->get('_pager'); |
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if (!$paginator instanceof Pagerfanta) { |
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return; |
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} |
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$response = $event->getResponse(); |
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$total = $paginator->getNbResults(); |
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$count = $total ? $paginator->getCurrentPageOffsetEnd() - $paginator->getCurrentPageOffsetStart() + 1 : 0; |
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$response->headers->set('X-Page', $paginator->getCurrentPage()); |
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$response->headers->set('X-Per-Page', $paginator->getMaxPerPage()); |
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$response->headers->set('X-Total-Count', $total); |
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$response->headers->set('X-Count', $count); |
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} |
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private function getPages(Pagerfanta $paginator): array |
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{ |
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$page = (int) $paginator->getCurrentPage(); |
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$last = (int) $paginator->getNbPages(); |
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$pages = ['first' => 1, 'last' => $last]; |
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if ($page > 1) { |
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$pages['prev'] = $page - 1; |
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} |
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if ($page < $last) { |
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$pages['next'] = $page + 1; |
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} |
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return $pages; |
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} |
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} |
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damax-solutions /
common
This function has been deprecated. The supplier of the function has supplied an explanatory message.
The explanatory message should give you some clue as to whether and when the function will be removed and what other function to use instead.