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<?php |
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namespace Bugloos\ResponderBundle\Service; |
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use Bugloos\ResponderBundle\PaginatorHandler\Contract\PaginatorHandlerInterface; |
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use Symfony\Component\HttpFoundation\Request; |
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use Doctrine\ORM\QueryBuilder; |
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use Doctrine\ORM\Query; |
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/** |
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* @author Mojtaba Gheytasi <[email protected]> |
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*/ |
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class Paginator |
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{ |
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private int $defaultMaxItemsPerPage; |
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private int $defaultItemsPerPage; |
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private string $pageKeyInRequest; |
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private string $itemsPerPageKeyInRequest; |
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private ?int $limit = null; |
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private Request $request; |
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private PaginatorHandlerInterface $paginatorHandler; |
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private PaginatorResponseInterface $paginatorResponse; |
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public function __construct( |
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PaginatorHandlerInterface $paginatorHandler, |
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PaginatorResponseInterface $paginatorResponse, |
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int $defaultMaxItemsPerPage, |
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int $defaultItemsPerPage, |
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string $pageKeyInRequest, |
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string $itemsPerPageKeyInRequest |
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) { |
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$this->paginatorHandler = $paginatorHandler; |
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$this->paginatorResponse = $paginatorResponse; |
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$this->defaultMaxItemsPerPage = $defaultMaxItemsPerPage; |
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$this->defaultItemsPerPage = $defaultItemsPerPage; |
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$this->pageKeyInRequest = $pageKeyInRequest; |
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$this->itemsPerPageKeyInRequest = $itemsPerPageKeyInRequest; |
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} |
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public function for(Request $request): self |
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{ |
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$this->request = $request; |
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return $this; |
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} |
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public function setDefaultItemPerPage(int $perPage): self |
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{ |
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$this->defaultItemsPerPage = $perPage; |
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return $this; |
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} |
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public function setLimit(int $limit): self |
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{ |
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$this->limit = $limit; |
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return $this; |
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} |
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public function paginate(object $query, array $options = []): iterable |
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{ |
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$this->paginatorHandler->initializePaginatorHandler($query, $this->limit, $options); |
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$this->applyRequestOnPaginatorHandler(); |
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return $this->paginationResponse->getResult($this->paginatorHandler, $this); |
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} |
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public function getRequestedPageNumber(): int |
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{ |
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return (int) $this->request->query->get($this->pageKeyInRequest, 1); |
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} |
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public function collection(): iterable |
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{ |
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return $this->getRequestedPageNumber() <= $this->paginatorHandler->totalPages() ? |
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$this->paginatorHandler->getCurrentPageResults() : []; |
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} |
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public function getRequestedItemPerPage(): int |
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{ |
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return (int) $this->request->query->get($this->itemsPerPageKeyInRequest, $this->defaultItemsPerPage); |
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} |
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public function count(): int |
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{ |
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return $this->getRequestedPageNumber() <= $this->paginatorHandler->totalPages() ? |
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$this->paginatorHandler->count() : 0; |
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} |
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private function getNormalizedItemsPerPage(): int |
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{ |
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return $this->getRequestedItemPerPage() > $this->defaultMaxItemsPerPage ? |
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$this->defaultMaxItemsPerPage : $this->getRequestedItemPerPage(); |
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} |
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private function applyRequestOnPaginatorHandler(): void |
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{ |
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$this->paginatorHandler->setItemsPerPage($this->getNormalizedItemsPerPage()); |
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if ($this->getRequestedPageNumber() <= $this->paginatorHandler->totalPages()) { |
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$this->paginatorHandler->setCurrentPage($this->getRequestedPageNumber()); |
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} |
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} |
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} |
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bugloos /
responder-bundle
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