meilisearch/Classes/Domain/Search/ResultSet/Facets/OptionBased/OptionCollection.php
2021-04-17 00:26:33 +02:00

76 lines
2.2 KiB
PHP

<?php
namespace WapplerSystems\Meilisearch\Domain\Search\ResultSet\Facets\OptionBased;
/*
* This file is part of the TYPO3 CMS project.
*
* It is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, either version 2
* of the License, or any later version.
*
* For the full copyright and license information, please read the
* LICENSE.txt file that was distributed with this source code.
*
* The TYPO3 project - inspiring people to share!
*/
use WapplerSystems\Meilisearch\Domain\Search\ResultSet\Facets\AbstractFacetItemCollection;
use WapplerSystems\Meilisearch\Domain\Search\ResultSet\Facets\OptionBased\Options\Option;
/**
* Collection for facet options.
*
* @author Frans Saris <frans@beech.it>
* @author Timo Hund <timo.hund@dkd.de>
*/
class OptionCollection extends AbstractFacetItemCollection
{
/**
* Returns an array of prefixes from the option labels.
*
* Red, Blue, Green => r, g, b
*
* Can be used in combination with getByPrefix() to group facet options by prefix (e.g. alphabetical).
*
* @param int $length
* @return array
*/
public function getLowercaseLabelPrefixes($length = 1)
{
$prefixes = $this->getLabelPrefixes($length);
return array_map('mb_strtolower', $prefixes);
}
/**
* @param string $filteredPrefix
* @return AbstractFacetItemCollection
*/
public function getByLowercaseLabelPrefix($filteredPrefix)
{
return $this->getFilteredCopy(function(Option $option) use ($filteredPrefix)
{
$filteredPrefixLength = mb_strlen($filteredPrefix);
$currentPrefix = mb_substr(mb_strtolower($option->getLabel()), 0, $filteredPrefixLength);
return $currentPrefix === $filteredPrefix;
});
}
/**
* @param int $length
* @return array
*/
protected function getLabelPrefixes($length = 1) : array
{
$prefixes = [];
foreach ($this->data as $option) {
/** @var $option Option */
$prefix = mb_substr($option->getLabel(), 0, $length);
$prefixes[$prefix] = $prefix;
}
return array_values($prefixes);
}
}