meilisearch/Classes/FieldProcessor/PathToHierarchy.php
2021-04-17 21:20:54 +02:00

81 lines
2.6 KiB
PHP

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