81 lines
2.6 KiB
PHP
81 lines
2.6 KiB
PHP
<?php
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namespace WapplerSystems\Meilisearch\FieldProcessor;
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/***************************************************************
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* Copyright notice
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*
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* (c) 2009-2015 Daniel Poetzinger <poetzinger@aoemedia.de>
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* All rights reserved
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*
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* This script is part of the TYPO3 project. The TYPO3 project is
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* free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* The GNU General Public License can be found at
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* http://www.gnu.org/copyleft/gpl.html.
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*
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* This script is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* This copyright notice MUST APPEAR in all copies of the script!
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***************************************************************/
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use WapplerSystems\Meilisearch\Domain\Search\ResultSet\Facets\OptionBased\Hierarchy\HierarchyTool;
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use TYPO3\CMS\Core\Utility\GeneralUtility;
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/**
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* Processes a value that may appear as field value in documents
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*
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* @author Daniel Poetzinger <poetzinger@aoemedia.de>
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*/
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class PathToHierarchy implements FieldProcessor
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{
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/**
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* Expects a value like "some/hierarchy/value"
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*
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* @param array $values Array of values, an array because of multivalued fields
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* @return array Modified array of values
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*/
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public function process(array $values)
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{
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$results = [];
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foreach ($values as $value) {
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$valueResults = $this->buildSolrHierarchyFromPath($value);
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$results = array_merge($results, $valueResults);
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}
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return array_unique($results);
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}
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/**
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* Builds a Solr hierarchy from path string.
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*
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* @param string $path path string
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* @return array Solr hierarchy
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* @see http://wiki.apache.org/solr/HierarchicalFaceting
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*/
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protected function buildSolrHierarchyFromPath($path)
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{
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$hierarchy = [];
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$path = HierarchyTool::substituteSlashes($path);
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$treeParts = GeneralUtility::trimExplode('/', $path, true);
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$currentTreeParts = [];
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foreach ($treeParts as $i => $part) {
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$currentTreeParts[] = $part;
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$hierarchyString = $i . '-' . implode('/', $currentTreeParts) . '/';
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$hierarchyString = HierarchyTool::unSubstituteSlashes($hierarchyString);
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$hierarchy[] = $hierarchyString;
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}
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return $hierarchy;
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}
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}
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