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Classes/Domain/Search/ResultSet/Facets/OptionBased/Hierarchy/HierarchyUrlDecoder.php

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+<?php
+namespace WapplerSystems\Meilisearch\Domain\Search\ResultSet\Facets\OptionBased\Hierarchy;
+
+/***************************************************************
+ *  Copyright notice
+ *
+ *  (c) 2012-2015 Ingo Renner <ingo@typo3.org>
+ *  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\FacetUrlDecoderInterface;
+
+/**
+ * Filter encoder to build Solr hierarchy queries from tx_meilisearch[filter]
+ *
+ * @author Ingo Renner <ingo@typo3.org>
+ */
+class HierarchyUrlDecoder implements FacetUrlDecoderInterface
+{
+
+    /**
+     * Delimiter for hierarchies in the URL.
+     *
+     * @var string
+     */
+    const DELIMITER = '/';
+
+    /**
+     * Parses the given hierarchy filter and returns a Solr filter query.
+     *
+     * @param string $hierarchy The hierarchy filter query.
+     * @param array $configuration Facet configuration
+     * @return string Lucene query language filter to be used for querying Solr
+     */
+    public function decode($hierarchy, array $configuration = [])
+    {
+        $escapedHierarchy = HierarchyTool::substituteSlashes($hierarchy);
+
+        $escapedHierarchy = substr($escapedHierarchy, 1);
+        $escapedHierarchy = rtrim($escapedHierarchy, '/');
+        $hierarchyItems = explode(self::DELIMITER, $escapedHierarchy);
+        $filterContent = (count($hierarchyItems) - 1) . '-' . $escapedHierarchy . '/';
+
+        $filterContent = HierarchyTool::unSubstituteSlashes($filterContent);
+
+        return '"' . str_replace("\\", "\\\\", $filterContent) . '"';
+    }
+}