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<?php |
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/* |
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* This file is part of the Pagerfanta package. |
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* |
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* (c) Pablo Díez <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Pagerfanta\Adapter; |
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/** |
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* NullAdapter. |
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* |
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* @author Benjamin Dulau <[email protected]> |
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*/ |
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class NullAdapter implements AdapterInterface |
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{ |
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private $nbResults; |
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/** |
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* Constructor. |
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* |
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* @param integer $nbResults Total item count. |
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*/ |
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public function __construct($nbResults = 0) |
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{ |
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$this->nbResults = (int) $nbResults; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getNbResults() |
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{ |
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return $this->nbResults; |
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} |
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/** |
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* The following methods are derived from code of the Zend Framework |
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* Code subject to the new BSD license (http://framework.zend.com/license/new-bsd). |
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* |
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* Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) |
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* |
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* {@inheritdoc} |
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*/ |
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public function getSlice($offset, $length) |
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{ |
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if ($offset >= $this->nbResults) { |
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return array(); |
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} |
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$nullArrayLength = $this->calculateNullArrayLength($offset, $length); |
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return $this->createNullArray($nullArrayLength); |
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} |
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private function calculateNullArrayLength($offset, $length) |
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{ |
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$remainCount = $this->remainCount($offset); |
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if ($length > $remainCount) { |
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return $remainCount; |
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} |
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return $length; |
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} |
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private function remainCount($offset) |
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{ |
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return $this->nbResults - $offset; |
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} |
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private function createNullArray($length) |
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{ |
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return array_fill(0, $length, null); |
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} |
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} |
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whiteoctober /
Pagerfanta
