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<?php |
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namespace ApacheSolrForTypo3\Solr\Domain\Search\ResultSet\Facets\OptionBased\Hierarchy; |
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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 ApacheSolrForTypo3\Solr\Domain\Search\Query\ParameterBuilder\Faceting; |
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use ApacheSolrForTypo3\Solr\Domain\Search\Query\Query; |
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use ApacheSolrForTypo3\Solr\Domain\Search\ResultSet\Facets\AbstractFacetParser; |
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use ApacheSolrForTypo3\Solr\Domain\Search\ResultSet\SearchResultSet; |
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/** |
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* Class OptionsFacetParser |
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*/ |
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class HierarchyFacetParser extends AbstractFacetParser |
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{ |
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/** |
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* @param SearchResultSet $resultSet |
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* @param string $facetName |
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* @param array $facetConfiguration |
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* @return HierarchyFacet|null |
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*/ |
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public function parse(SearchResultSet $resultSet, $facetName, array $facetConfiguration) |
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{ |
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$response = $resultSet->getResponse(); |
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$fieldName = $facetConfiguration['field']; |
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$label = $this->getPlainLabelOrApplyCObject($facetConfiguration); |
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$optionsFromSolrResponse = isset($response->facet_counts->facet_fields->{$fieldName}) ? get_object_vars($response->facet_counts->facet_fields->{$fieldName}) : []; |
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$optionsFromRequest = $this->getActiveFacetValuesFromRequest($resultSet, $facetName); |
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$hasOptionsInResponse = !empty($optionsFromSolrResponse); |
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$hasSelectedOptionsInRequest = count($optionsFromRequest) > 0; |
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$hasNoOptionsToShow = !$hasOptionsInResponse && !$hasSelectedOptionsInRequest; |
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$hideEmpty = !$resultSet->getUsedSearchRequest()->getContextTypoScriptConfiguration()->getSearchFacetingShowEmptyFacetsByName($facetName); |
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if ($hasNoOptionsToShow && $hideEmpty) { |
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return null; |
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} |
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/** @var $facet HierarchyFacet */ |
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$facet = $this->objectManager->get(HierarchyFacet::class, $resultSet, $facetName, $fieldName, $label, $facetConfiguration); |
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$hasActiveOptions = count($optionsFromRequest) > 0; |
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$facet->setIsUsed($hasActiveOptions); |
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$facet->setIsAvailable($hasOptionsInResponse); |
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$nodesToCreate = $this->getMergedFacetValueFromSearchRequestAndSolrResponse($optionsFromSolrResponse, $optionsFromRequest); |
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if ($this->facetOptionsMustBeResorted($facetConfiguration, $resultSet) === true) { |
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$nodesToCreate = $this->sortFacetOptionsInNaturalOrder($nodesToCreate); |
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} |
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foreach ($nodesToCreate as $value => $count) { |
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if ($this->getIsExcludedFacetValue($value, $facetConfiguration)) { |
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continue; |
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} |
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$isActive = in_array($value, $optionsFromRequest); |
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$delimiterPosition = strpos($value, '-'); |
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$path = substr($value, $delimiterPosition + 1); |
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$pathArray = $this->getPathAsArray($path); |
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$key = array_pop($pathArray); |
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$parentKey = array_pop($pathArray); |
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$value = '/' . $path; |
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$label = $this->getLabelFromRenderingInstructions($key, $count, $facetName, $facetConfiguration); |
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$facet->createNode($parentKey, $key, $label, $value, $count, $isActive); |
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} |
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return $facet; |
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} |
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/** |
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* Sorts facet options in natural order. |
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* Options must be sorted in natural order, |
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* because lower nesting levels must be instantiated first, to serve as parents for higher nested levels. |
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* See implementation of HierarchyFacet::createNode(). |
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* |
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* @param array $flatOptionsListForFacet |
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* @return void sorted list of facet options |
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*/ |
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protected function sortFacetOptionsInNaturalOrder(array $flatOptionsListForHierarchyFacet) |
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{ |
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uksort($flatOptionsListForHierarchyFacet, "strnatcmp"); |
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return $flatOptionsListForHierarchyFacet; |
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} |
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/** |
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* Checks if options must be resorted. |
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* |
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* Apache Solr facet.sort can be set globally or per facet. |
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* Relevant TypoScript paths: |
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* plugin.tx_solr.search.faceting.sortBy causes facet.sort Apache Solr parameter |
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* plugin.tx_solr.search.faceting.facets.[facetName].sortBy causes f.<fieldname>.facet.sort parameter |
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* |
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* see: https://lucene.apache.org/solr/guide/6_6/faceting.html#Faceting-Thefacet.sortParameter |
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* see: https://wiki.apache.org/solr/SimpleFacetParameters#facet.sort : "This parameter can be specified on a per field basis." |
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* |
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* If plugin.tx_solr.search.faceting.facets.[facetName].sortBy is not set, then trying to get global parameter from ResultSet. |
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* |
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* @param array $facetConfiguration |
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* @param SearchResultSet $resultSet |
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* @return bool |
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*/ |
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protected function facetOptionsMustBeResorted(array $facetConfiguration, SearchResultSet $resultSet) |
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{ |
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if (isset($facetConfiguration['sortBy']) && $facetConfiguration['sortBy'] === 'index') { |
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return true; |
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} |
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if (!isset($facetConfiguration['sortBy']) |
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&& $resultSet->getUsedQuery()->getFaceting()->getSorting() === 'index') { |
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return true; |
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} |
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return false; |
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} |
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/** |
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* This method is used to get the path array from a hierarchical facet. It substitutes escaped slashes to keep them |
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* when they are used inside a facetValue. |
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* |
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* @param string $path |
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* @return array |
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*/ |
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protected function getPathAsArray($path) |
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{ |
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$path = str_replace('\/', '@@@', $path); |
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$path = rtrim($path, "/"); |
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$segments = explode('/', $path); |
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return array_map(function($item) { |
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return str_replace('@@@', '/', $item); |
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}, $segments); |
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} |
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/** |
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* Retrieves the active facetValue for a facet from the search request. |
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* @param SearchResultSet $resultSet |
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* @param string $facetName |
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* @return array |
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*/ |
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protected function getActiveFacetValuesFromRequest(SearchResultSet $resultSet, $facetName) |
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{ |
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$activeFacetValues = []; |
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$values = $resultSet->getUsedSearchRequest()->getActiveFacetValuesByName($facetName); |
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foreach (is_array($values) ? $values : [] as $valueFromRequest) { |
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// Attach the 'depth' param again to the value |
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if (strpos($valueFromRequest, '-') === false) { |
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$valueFromRequest = trim($valueFromRequest, '/'); |
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$valueFromRequest = (count(explode('/', $valueFromRequest)) - 1) . '-' . $valueFromRequest . '/'; |
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} |
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$activeFacetValues[] = $valueFromRequest; |
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} |
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return $activeFacetValues; |
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} |
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} |
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This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue.
If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress. Please note the @ignore annotation hint above.