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<?php |
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namespace kalanis\kw_pager; |
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class BasicPager implements Interfaces\IPager |
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{ |
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protected int $maxResults = 0; |
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protected int $actualPage = 0; |
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protected int $limitPerPage = 0; |
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public function setMaxResults(int $maxResults): Interfaces\IPager |
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{ |
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$this->maxResults = $maxResults; |
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return $this; |
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} |
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public function getMaxResults(): int |
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{ |
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return $this->maxResults; |
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} |
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public function setActualPage(int $page): Interfaces\IPager |
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{ |
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$this->actualPage = $page; |
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return $this; |
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} |
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public function getActualPage(): int |
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{ |
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return $this->actualPage; |
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} |
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public function setLimit(int $limit): Interfaces\IPager |
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{ |
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$this->limitPerPage = $limit; |
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return $this; |
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} |
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public function getLimit(): int |
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{ |
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return $this->limitPerPage; |
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} |
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public function getOffset(): int |
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{ |
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$page = intval($this->actualPage - 1); |
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if ($this->pageExists($page)) { |
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return intval($page * $this->limitPerPage); |
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} else { |
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return 0; |
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} |
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} |
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public function getPagesCount(): int |
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{ |
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if (0 >= $this->maxResults) { |
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return 1; |
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} |
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$lastPageItems = $this->maxResults % $this->limitPerPage; |
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$page = intval(floor($this->maxResults / $this->limitPerPage)); |
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return (0 < $lastPageItems) ? $page + 1 : $page ; |
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} |
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public function pageExists(int $i): bool |
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{ |
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return (0 < $i) && ($i <= $this->getPagesCount()); |
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} |
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} |
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alex-kalanis /
pager
