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<?php |
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/* |
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* soluble-flexstore library |
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* |
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* @author Vanvelthem Sébastien |
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* @link https://github.com/belgattitude/soluble-flexstore |
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* @copyright Copyright (c) 20016-2017 Vanvelthem Sébastien |
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* @license MIT License https://github.com/belgattitude/soluble-flexstore/blob/master/LICENSE.md |
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* |
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*/ |
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namespace Soluble\FlexStore\Helper; |
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use Soluble\FlexStore\Exception; |
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use Zend\Paginator\Paginator as ZendPaginator; |
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use Zend\Paginator\ScrollingStyle\ScrollingStyleInterface; |
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class Paginator extends ZendPaginator |
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{ |
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/** |
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* Default set of scrolling. |
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* |
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* @var array |
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*/ |
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protected $scrollingTypes = [ |
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'all' => 'Zend\Paginator\ScrollingStyle\All', |
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'elastic' => 'Zend\Paginator\ScrollingStyle\Elastic', |
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'jumping' => 'Zend\Paginator\ScrollingStyle\Jumping', |
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'sliding' => 'Zend\Paginator\ScrollingStyle\Sliding', |
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]; |
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/** |
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* @param int $totalRows |
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* @param int $limit |
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* @param int $offset |
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* |
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* @throws Exception\InvalidUsageException |
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*/ |
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public function __construct($totalRows, $limit, $offset = 0) |
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{ |
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$totalRows = filter_var($totalRows, FILTER_VALIDATE_INT); |
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$limit = filter_var($limit, FILTER_VALIDATE_INT); |
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$offset = filter_var($offset, FILTER_VALIDATE_INT); |
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if (!is_int($limit) || $limit < 0) { |
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throw new Exception\InvalidUsageException(__METHOD__ . ' expects limit to be an integer greater than 0'); |
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} |
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if (!is_int($totalRows) || $totalRows < 0) { |
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throw new Exception\InvalidUsageException(__METHOD__ . ' expects total rows to be an integer greater than 0'); |
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} |
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if (!is_int($offset) || $offset < 0) { |
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throw new Exception\InvalidUsageException(__METHOD__ . ' expects offset to be an integer greater than 0'); |
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} |
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if (class_exists('\Zend\Paginator\Adapter\NullFill')) { |
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$adapter = new \Zend\Paginator\Adapter\NullFill($totalRows); |
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} else { |
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throw new Exception\RuntimeException(__METHOD__ . " Missing Zend\Paginator\Adapter."); |
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} |
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parent::__construct($adapter); |
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$this->setItemCountPerPage($limit); |
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$this->setCurrentPageNumber(ceil(($offset + 1) / $limit)); |
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} |
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/** |
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* Loads a scrolling style. |
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* |
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* @param string $scrollingStyle |
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* |
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* @return ScrollingStyleInterface |
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* |
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* @throws Exception\InvalidArgumentException |
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*/ |
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protected function _loadScrollingStyle($scrollingStyle = null) |
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{ |
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if ($scrollingStyle === null) { |
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$scrollingStyle = static::$defaultScrollingStyle; |
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} |
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switch (strtolower(gettype($scrollingStyle))) { |
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case 'object': |
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if (!$scrollingStyle instanceof ScrollingStyleInterface) { |
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throw new Exception\InvalidArgumentException( |
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'Scrolling style must implement Zend\Paginator\ScrollingStyle\ScrollingStyleInterface' |
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); |
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} |
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return $scrollingStyle; |
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case 'string': |
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if (!array_key_exists(strtolower($scrollingStyle), $this->scrollingTypes)) { |
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throw new Exception\InvalidArgumentException( |
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"Scrolling type '$scrollingStyle' is not supported, look for (" . |
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implode(',', array_keys($this->scrollingTypes)) . |
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')' |
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); |
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} |
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$cls = $this->scrollingTypes[strtolower($scrollingStyle)]; |
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return new $cls(); |
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case 'null': |
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// Fall through to default case |
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default: |
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throw new Exception\InvalidArgumentException( |
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'Scrolling style must be a class ' . |
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'name or object implementing Zend\Paginator\ScrollingStyle\ScrollingStyleInterface' |
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); |
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} |
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} |
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} |
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belgattitude /
soluble-flexstore
