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<?php |
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namespace Bone\View\Helper; |
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use Bone\View\Helper\Exception\PaginatorException; |
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use Del\Icon; |
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class Paginator |
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{ |
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private $currentPage = 1; |
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private $pageCount; |
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private $pagerSize = 5; |
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private $url; |
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private $urlPart = ':page'; |
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/** |
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* @param int $pageNum |
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* @return string |
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*/ |
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private function url(int $pageNum): string |
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{ |
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return str_replace($this->urlPart, $pageNum, $this->url); |
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} |
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/** |
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* @param $pageCount |
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*/ |
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public function setPageCount(int $pageCount): void |
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{ |
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$this->pageCount = $pageCount; |
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} |
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/** |
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* @param $pageCount |
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*/ |
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public function setPageCountByTotalRecords(int $rowCount, int $numPerPage): void |
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{ |
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$this->pageCount = (int) ceil($rowCount / $numPerPage) ?: 1; |
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} |
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/** |
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* @param $url |
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*/ |
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public function setUrl(string $url): void |
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{ |
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$this->url = $url; |
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} |
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/** |
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* @param $replace |
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*/ |
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public function setUrlPart(string $replace): void |
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{ |
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$this->urlPart = $replace; |
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} |
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/** |
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* @param int $page_no |
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*/ |
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public function setCurrentPage(int $page_no): void |
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{ |
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$this->currentPage = $page_no; |
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} |
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/** |
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* @param int $numBoxes an ODD number! |
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*/ |
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public function setPagerSize(int $numBoxes): void |
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{ |
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if ($numBoxes % 2 === 0) { |
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$numBoxes--; |
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} |
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$this->pagerSize = $numBoxes; |
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} |
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/** |
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* @return int |
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*/ |
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public function getPagerSize(): int |
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{ |
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return $this->pagerSize; |
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} |
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/** |
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* @throws PaginatorException |
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*/ |
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private function ensurePageCount() |
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{ |
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if (!$this->pageCount) { |
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throw new PaginatorException(PaginatorException::NO_PAGE_COUNT); |
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} |
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} |
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/** |
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* @throws PaginatorException |
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*/ |
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private function ensureUrl() |
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{ |
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if (!$this->url) { |
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throw new PaginatorException(PaginatorException::NO_URL); |
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} |
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} |
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/** |
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* @throws PaginatorException |
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*/ |
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private function ensureCurrentPage() |
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{ |
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if (!$this->currentPage) { |
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throw new PaginatorException(PaginatorException::NO_CURRENT_PAGE); |
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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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private function calculateStart(int $pages): int |
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{ |
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$half = ($pages - 1) / 2; |
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if ($this->currentPage < 3) { |
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$start = 1; |
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} elseif ($this->currentPage >= ($this->pageCount - $half)) { |
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$start = $this->pageCount - ($this->getPagerSize() - 1); |
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} else { |
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$start = $this->currentPage - $half; |
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if ($start < 1) { |
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$start = 1; |
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} |
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} |
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return $start; |
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} |
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/** |
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* @return string |
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* @throws PaginatorException |
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*/ |
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public function render(): string |
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{ |
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$this->ensurePageCount(); |
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$this->ensureUrl(); |
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$this->ensureCurrentPage(); |
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$html = '<nav><ul class="pagination">'; |
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if ($this->pageCount > ($this->getPagerSize() - 1)) { |
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$pages = $this->getPagerSize(); |
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$start = $this->calculateStart($pages); |
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} else { |
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$pages = $this->pageCount; |
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$start = 1; |
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} |
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$html .= ($this->currentPage === 1) ? '<li class="page-item disabled">' :'<li class="page-item">'; |
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if ($this->currentPage === 1) { |
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$html .= '<a class="page-link" href ="#">' . Icon::custom(Icon::FAST_BACKWARD, 'disabled') . '</a>'; |
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} else { |
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$html .= '<a class="page-link" href ="' . $this->url(1) . '">' . Icon::FAST_BACKWARD . '</a>'; |
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} |
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$html .= '</li>'; |
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$html .= ($this->currentPage === 1) ? '<li class="page-item disabled">' :'<li class="page-item">'; |
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View Code Duplication |
if ($this->currentPage === 1) { |
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$html .= '<a class="page-link" href ="#">' . Icon::custom(Icon::BACKWARD, 'disabled') . '</a>'; |
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} else { |
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$html .= '<a class="page-link" href ="' . $this->url($this->currentPage - 1) . '">' . Icon::BACKWARD . '</a>'; |
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} |
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$html .= '</li>'; |
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for ($x = $start; $x <= ($start + ($pages - 1)); $x++) { |
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$html .= '<li class="page-item '; |
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if ($this->currentPage === $x) { |
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$html .= ' active" aria-current="page'; |
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} |
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$html .= '">'; |
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if ($this->currentPage === $x) { |
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$html .= '<a class="page-link" href="#">' . $x . '</a>'; |
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} else { |
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$html .= '<a class="page-link" href="' . $this->url($x) .'">' . $x . '</a>'; |
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} |
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$html .= '</li>'; |
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} |
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$html .= ($this->currentPage >= $this->pageCount) ? '<li class="page-item disabled">' :'<li class="page-item">'; |
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View Code Duplication |
if ($this->currentPage >= $this->pageCount) { |
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$html .= '<a class="page-link" href="#">' . Icon::custom(Icon::FORWARD, 'disabled') . '</a>'; |
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} else { |
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$html .= '<a class="page-link" href ="' . $this->url($this->currentPage + 1) . '">' . Icon::FORWARD . '</i></a>'; |
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} |
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$html .= '</li>'; |
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$html .= ($this->currentPage >= $this->pageCount) ? '<li class="page-item disabled">' : '<li class="page-item">'; |
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View Code Duplication |
if ($this->currentPage >= $this->pageCount) { |
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$html .= '<a class="page-link" href="#">' . Icon::custom(Icon::FAST_FORWARD, 'disabled') . '</a>'; |
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} else { |
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$html .= '<a class="page-link" href ="' . $this->url($this->pageCount) . '">' . Icon::FAST_FORWARD . '</i></a>'; |
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} |
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$html .= '</li>'; |
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$html .= '</ul></nav>'; |
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return $html; |
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} |
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} |
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delboy1978uk /
bone
Loading history...
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.