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<?php |
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/** |
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* Created by Gorlum 25.11.2017 21:45 |
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*/ |
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namespace General\Helpers; |
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use DBAL\DbSqlPaging; |
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class PagingRenderer { |
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const KEYWORD = 'sheet'; |
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/** |
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* @var string $rootUrl |
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*/ |
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protected $rootUrl = ''; |
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/** |
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* @var DbSqlPaging $pager |
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*/ |
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protected $pager; |
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protected $delta = PAGING_SIZE_MAX_DELTA; |
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protected $result = []; |
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protected $current; |
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protected $total; |
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protected $from; |
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protected $to; |
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public function __construct(DbSqlPaging $pager, $rootUrl = '') { |
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$this->pager = $pager; |
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$this->rootUrl = URLHelper::addParam($rootUrl, self::KEYWORD); |
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} |
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/** |
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* @param int $delta |
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* |
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* @return $this |
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*/ |
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public function setDelta($delta) { |
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$this->delta = $delta; |
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return $this; |
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} |
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protected function href($pageNum, $link, $style = '', $href = true, $active = true) { |
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return |
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[ |
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'HREF' => $active ? $href : false, |
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'STYLE' => $active ? $style : 'inactive', |
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'PAGE_NUM' => $pageNum, |
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'TEXT' => $link, |
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]; |
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} |
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protected function addNumbers() { |
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$this->from = max( |
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1, |
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$this->current - $this->delta - max(0, $this->current + $this->delta - $this->total) |
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); |
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$this->to = min( |
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$this->total, |
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$this->current + $this->delta - min(0, $this->current - $this->delta - 1) |
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); |
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for ($i = $this->from; $i <= $this->to; $i++) { |
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array_push($this->result, $this->href($i, $i, $i == $this->current ? 'current' : 'before-after', $i != $this->current)); |
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} |
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} |
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protected function addEllipsis() { |
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if ($this->from > 1) { |
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array_unshift($this->result, $this->href(0, '...', 'ellipsis', false)); |
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} |
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if ($this->to < $this->total) { |
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array_push($this->result, $this->href(0, '...', 'ellipsis', false)); |
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} |
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} |
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protected function addPrevNext() { |
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$prevActive = $this->current > 1; |
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array_unshift($this->result, $this->href($this->current - 1, '<<', 'prev-next', $prevActive, $prevActive)); |
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$nextActive = $this->current < $this->total; |
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array_push($this->result, $this->href($this->current + 1, '>>', 'prev-next', $nextActive, $nextActive)); |
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} |
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protected function addFirstLast() { |
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$firstActive = $this->current != 1; |
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array_unshift($this->result, $this->href(1, '|<-', 'first-last', $firstActive, $firstActive)); |
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$lastActive = $this->current != $this->total; |
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array_push($this->result, $this->href($this->total, '->|', 'first-last', $lastActive, $lastActive)); |
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} |
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/** |
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* @return string |
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*/ |
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public function render() { |
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$output = ''; |
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$this->result = []; |
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$this->current = $this->pager->getCurrentPageNumber(); |
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$this->total = $this->pager->getTotalPages(); |
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if ($this->total > 1) { |
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$this->addNumbers(); |
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$this->addEllipsis(); |
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$this->addPrevNext(); |
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$this->addFirstLast(); |
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} |
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if(!empty($this->result)) { |
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$template = gettemplate('_paging'); |
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$template->assign_recursive([ |
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'PAGING_ROOT' => $this->rootUrl, |
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'.' => ['paging' => $this->result] |
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]); |
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$output = $template->assign_display('_paging'); |
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} |
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return $output; |
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} |
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} |
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supernova-ws /
SuperNova
