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<?php |
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declare(strict_types=1); |
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namespace Psi\Component\Grid; |
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class Paginator |
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{ |
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private $options; |
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private $numberOfRecords; |
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private $numberOfRecordsOnPage; |
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public function __construct(GridContext $options, int $numberOfRecordsOnPage, int $numberOfRecords = null) |
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{ |
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$this->options = $options; |
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$this->numberOfRecords = $numberOfRecords; |
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$this->numberOfRecordsOnPage = $numberOfRecordsOnPage; |
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} |
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public function getPageSize(): int |
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{ |
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return $this->options->getPageSize(); |
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} |
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public function getCurrentPage(): int |
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{ |
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return $this->options->getCurrentPage(); |
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} |
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public function getNumberOfRecords() |
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{ |
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return $this->numberOfRecords; |
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} |
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public function getNumberOfPages(): int |
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{ |
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if (null === $this->numberOfRecords) { |
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throw new \RuntimeException( |
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'Cannot determine the last page when the total number of ' . |
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'records has not been provided.' |
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); |
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} |
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return (int) ceil($this->getNumberOfRecords() / $this->getPageSize()); |
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} |
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public function isLastPage(): bool |
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{ |
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if (null === $this->numberOfRecords) { |
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return $this->numberOfRecordsOnPage < $this->getPageSize(); |
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} |
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return $this->getCurrentPage() == $this->getNumberOfPages(); |
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} |
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public function getUrlParametersForPage($page = null) |
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{ |
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return array_merge($this->options->getUrlParameters(), [ |
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'page' => $page ?: $this->options->getCurrentPage(), |
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]); |
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} |
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} |
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psiphp /
grid
