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<?php |
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namespace Pfilsx\DataGrid\Grid; |
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class Pager |
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{ |
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protected $page = 1; |
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protected $limit = null; |
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protected $totalCount; |
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protected $maxPage; |
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protected $pages = []; |
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protected $isEnabled; |
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public function isEnabled() |
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{ |
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return $this->isEnabled; |
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} |
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public function enable() |
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{ |
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$this->isEnabled = true; |
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} |
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public function disable() |
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{ |
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$this->isEnabled = false; |
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} |
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public function setOptions(array $options) |
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{ |
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foreach ($options as $key => $value) { |
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$setter = 'set' . ucfirst($key); |
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if (method_exists($this, $setter)) { |
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$this->$setter($value); |
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} |
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} |
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} |
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/** |
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* @return int |
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*/ |
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public function getFirst() |
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{ |
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return ($this->page - 1) * $this->limit; |
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} |
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/** |
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* @return int |
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*/ |
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public function getPage(): int |
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{ |
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return $this->page; |
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} |
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/** |
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* @param int $page |
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*/ |
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public function setPage(int $page): void |
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{ |
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$this->page = $page; |
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} |
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/** |
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* @return mixed |
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*/ |
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public function getLimit() |
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{ |
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return $this->limit; |
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} |
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/** |
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* @param $limit |
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*/ |
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public function setLimit($limit): void |
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{ |
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$this->limit = $limit; |
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} |
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/** |
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* @param int $totalCount |
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*/ |
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public function setTotalCount(int $totalCount): void |
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{ |
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$this->totalCount = $totalCount; |
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$this->rebuildPaginationOptions(); |
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} |
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public function getPaginationOptions() |
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{ |
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return [ |
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'currentPage' => $this->page, |
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'pages' => $this->pages |
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]; |
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} |
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/** |
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* @internal |
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*/ |
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public function rebuildPaginationOptions() |
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{ |
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if (is_int($this->limit) && is_int($this->totalCount)) { |
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$this->maxPage = (int)ceil($this->totalCount / $this->limit); |
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$this->page = $this->page > 0 && $this->page <= $this->maxPage ? $this->page : 1; |
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$this->pages = $this->buildPages(); |
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} |
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} |
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protected function buildPages() |
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{ |
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if ($this->maxPage === 0) { |
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return [1]; |
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} |
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if ($this->maxPage <= 10) { |
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return range(1, $this->maxPage); |
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} |
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if ($this->page < 5) { |
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return array_merge(range(1, 6), [null, $this->maxPage]); |
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} |
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if ($this->page > $this->maxPage - 4) { |
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return array_merge([1, null], range($this->maxPage - 5, $this->maxPage)); |
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} |
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return array_merge([1, null], range($this->page - 2, $this->page + 2), [null, $this->maxPage]); |
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} |
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} |
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pfilsx /
DataGridBundle
