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<?php |
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namespace Redaxscript\View\Helper; |
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use Redaxscript\Html; |
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use Redaxscript\Module; |
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use Redaxscript\View\ViewAbstract; |
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use function array_replace_recursive; |
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use function max; |
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use function min; |
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use function range; |
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/** |
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* helper class to create the pagination |
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* |
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* @since 4.0.0 |
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* |
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* @package Redaxscript |
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* @category View |
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* @author Henry Ruhs |
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*/ |
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class Pagination extends ViewAbstract |
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{ |
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/** |
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* options of the pagination |
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* |
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* @var array |
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*/ |
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protected $_optionArray = |
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[ |
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'className' => |
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[ |
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'list' => 'rs-list-pagination', |
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'item' => |
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[ |
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'first' => 'rs-item-first', |
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'previous' => 'rs-item-previous', |
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'next' => 'rs-item-next', |
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'last' => 'rs-item-last', |
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'number' => 'rs-item-number', |
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'active' => 'rs-item-active' |
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] |
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] |
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]; |
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/** |
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* init the class |
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* |
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* @since 4.0.0 |
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* |
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* @param array $optionArray options of the pagination |
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*/ |
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public function init(array $optionArray = []) : void |
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{ |
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$this->_optionArray = array_replace_recursive($this->_optionArray, $optionArray); |
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} |
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/** |
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* render the view |
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* |
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* @since 4.0.0 |
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* |
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* @param string $route |
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* @param int $current |
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* @param int $total |
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* @param int $range |
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* |
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* @return string |
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*/ |
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public function render(string $route = null, int $current = null, int $total = null, int $range = 0) : string |
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{ |
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$output = Module\Hook::trigger('paginationStart'); |
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$outputItem = null; |
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$numberArray = $current && $total ? $this->_getNumberArray($current, $total, $range) : []; |
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$parameterRoute = $this->_registry->get('parameterRoute'); |
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/* html element */ |
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$element = new Html\Element(); |
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$listElement = $element |
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->copy() |
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->init('ul', |
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[ |
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'class' => $this->_optionArray['className']['list'] |
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]); |
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$itemElement = $element->copy()->init('li'); |
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$linkElement = $element->copy()->init('a'); |
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$textElement = $element->copy()->init('span'); |
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/* first and previous */ |
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if ($current > 1) |
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{ |
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$outputItem .= $itemElement |
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->copy() |
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->addClass($this->_optionArray['className']['item']['first']) |
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->html( |
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$linkElement |
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->copy() |
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->attr('href', $parameterRoute . $route) |
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->text($this->_language->get('first')) |
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); |
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$outputItem .= $itemElement |
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->copy() |
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->addClass($this->_optionArray['className']['item']['previous']) |
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->html( |
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$linkElement |
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->copy() |
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->attr( |
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[ |
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'href' => $parameterRoute . $route . '/' . ($current - 1), |
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'rel' => 'prev' |
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]) |
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->text($this->_language->get('previous')) |
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); |
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} |
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/* process number */ |
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foreach ($numberArray as $value) |
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{ |
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$outputItem .= $itemElement |
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->copy() |
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->addClass($this->_optionArray['className']['item']['number']) |
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->addClass($value === $current ? $this->_optionArray['className']['item']['active'] : null) |
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->html( |
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$value === $current ? $textElement->text($value) : $linkElement |
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->copy() |
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->attr('href', $parameterRoute . $route . '/' . $value) |
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->text($value) |
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); |
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} |
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/* next and last */ |
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if ($current && $current < $total) |
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{ |
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$outputItem .= $itemElement |
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->copy() |
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->addClass($this->_optionArray['className']['item']['next']) |
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->html( |
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$linkElement |
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->copy() |
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->attr( |
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[ |
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'href' => $parameterRoute . $route . '/' . ($current + 1), |
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'rel' => 'next' |
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]) |
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->text($this->_language->get('next')) |
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); |
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$outputItem .= $itemElement |
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->copy() |
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->addClass($this->_optionArray['className']['item']['last']) |
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->html( |
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$linkElement |
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->copy() |
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->attr('href', $parameterRoute . $route . '/' . $total) |
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->text($this->_language->get('last')) |
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); |
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} |
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/* collect output */ |
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if ($outputItem) |
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{ |
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$output .= $listElement->html($outputItem); |
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} |
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$output .= Module\Hook::trigger('paginationEnd'); |
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return $output; |
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} |
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/** |
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* get the number array |
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* |
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* @since 4.0.0 |
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* |
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* @param int $current |
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* @param int $total |
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* @param int $range |
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* |
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* @return array |
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*/ |
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protected function _getNumberArray(int $current = null, int $total = null, int $range = 0) : array |
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{ |
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$start = $current - $range; |
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$end = $current + $range; |
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/* start and end */ |
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for ($i = $start; $i <= $end; $i++) |
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{ |
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if ($i < 1) |
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{ |
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$end++; |
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} |
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if ($i > $total) |
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{ |
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$start--; |
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} |
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} |
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return range(max(1, $start), min($total, $end)); |
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} |
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} |
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In PHP, under loose comparison (like
==
, or!=
, orswitch
conditions), values of different types might be equal.For
integer
values, zero is a special case, in particular the following results might be unexpected: