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