500 lines
18 KiB
PHP
500 lines
18 KiB
PHP
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<?php
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namespace WapplerSystems\Meilisearch\Domain\Search\ResultSet;
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/***************************************************************
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* Copyright notice
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*
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* (c) 2015-2016 Timo Schmidt <timo.schmidt@dkd.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\Query\ParameterBuilder\QueryFields;
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use WapplerSystems\Meilisearch\Domain\Search\Query\QueryBuilder;
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use WapplerSystems\Meilisearch\Domain\Search\Query\Query;
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use WapplerSystems\Meilisearch\Domain\Search\Query\SearchQuery;
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use WapplerSystems\Meilisearch\Domain\Search\ResultSet\Result\Parser\ResultParserRegistry;
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use WapplerSystems\Meilisearch\Domain\Search\ResultSet\Result\SearchResult;
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use WapplerSystems\Meilisearch\Domain\Search\ResultSet\Result\SearchResultCollection;
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use WapplerSystems\Meilisearch\Domain\Search\SearchRequest;
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use WapplerSystems\Meilisearch\Domain\Search\SearchRequestAware;
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use WapplerSystems\Meilisearch\Domain\Variants\VariantsProcessor;
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use WapplerSystems\Meilisearch\Query\Modifier\Modifier;
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use WapplerSystems\Meilisearch\Search;
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use WapplerSystems\Meilisearch\Search\QueryAware;
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use WapplerSystems\Meilisearch\Search\SearchAware;
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use WapplerSystems\Meilisearch\Search\SearchComponentManager;
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use WapplerSystems\Meilisearch\System\Configuration\TypoScriptConfiguration;
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use WapplerSystems\Meilisearch\System\Logging\SolrLogManager;
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use WapplerSystems\Meilisearch\System\Solr\Document\Document;
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use WapplerSystems\Meilisearch\System\Solr\ResponseAdapter;
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use WapplerSystems\Meilisearch\System\Solr\SolrIncompleteResponseException;
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use TYPO3\CMS\Core\Utility\GeneralUtility;
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use WapplerSystems\Meilisearch\Domain\Search\ResultSet\Result\SearchResultBuilder;
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use TYPO3\CMS\Extbase\Object\ObjectManager;
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use TYPO3\CMS\Extbase\Object\ObjectManagerInterface;
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/**
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* The SearchResultSetService is responsible to build a SearchResultSet from a SearchRequest.
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* It encapsulates the logic to trigger a search in order to be able to reuse it in multiple places.
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*
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* @author Timo Schmidt <timo.schmidt@dkd.de>
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*/
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class SearchResultSetService
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{
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/**
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* Track, if the number of results per page has been changed by the current request
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*
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* @var bool
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*/
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protected $resultsPerPageChanged = false;
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/**
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* @var Search
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*/
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protected $search;
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/**
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* @var SearchResultSet
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*/
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protected $lastResultSet = null;
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/**
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* @var boolean
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*/
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protected $isSolrAvailable = false;
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/**
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* @var TypoScriptConfiguration
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*/
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protected $typoScriptConfiguration;
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/**
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* @var SolrLogManager
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*/
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protected $logger = null;
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/**
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* @var SearchResultBuilder
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*/
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protected $searchResultBuilder;
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/**
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* @var QueryBuilder
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*/
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protected $queryBuilder;
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/**
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* @var ObjectManagerInterface
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*/
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protected $objectManager;
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/**
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* @param TypoScriptConfiguration $configuration
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* @param Search $search
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* @param SolrLogManager $solrLogManager
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* @param SearchResultBuilder $resultBuilder
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* @param QueryBuilder $queryBuilder
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*/
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public function __construct(TypoScriptConfiguration $configuration, Search $search, SolrLogManager $solrLogManager = null, SearchResultBuilder $resultBuilder = null, QueryBuilder $queryBuilder = null)
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{
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$this->search = $search;
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$this->typoScriptConfiguration = $configuration;
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$this->logger = $solrLogManager ?? GeneralUtility::makeInstance(SolrLogManager::class, /** @scrutinizer ignore-type */ __CLASS__);
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$this->searchResultBuilder = $resultBuilder ?? GeneralUtility::makeInstance(SearchResultBuilder::class);
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$this->queryBuilder = $queryBuilder ?? GeneralUtility::makeInstance(QueryBuilder::class, /** @scrutinizer ignore-type */ $configuration, /** @scrutinizer ignore-type */ $solrLogManager);
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}
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/**
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* @param ObjectManagerInterface $objectManager
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*/
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public function injectObjectManager(ObjectManagerInterface $objectManager)
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{
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$this->objectManager = $objectManager;
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}
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/**
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* @param bool $useCache
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* @return bool
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*/
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public function getIsSolrAvailable($useCache = true)
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{
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$this->isSolrAvailable = $this->search->ping($useCache);
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return $this->isSolrAvailable;
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}
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/**
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* Retrieves the used search instance.
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*
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* @return Search
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*/
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public function getSearch()
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{
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return $this->search;
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}
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/**
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* @param Query $query
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* @param SearchRequest $searchRequest
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*/
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protected function initializeRegisteredSearchComponents(Query $query, SearchRequest $searchRequest)
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{
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$searchComponents = $this->getRegisteredSearchComponents();
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foreach ($searchComponents as $searchComponent) {
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/** @var Search\SearchComponent $searchComponent */
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$searchComponent->setSearchConfiguration($this->typoScriptConfiguration->getSearchConfiguration());
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if ($searchComponent instanceof QueryAware) {
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$searchComponent->setQuery($query);
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}
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if ($searchComponent instanceof SearchRequestAware) {
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$searchComponent->setSearchRequest($searchRequest);
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}
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$searchComponent->initializeSearchComponent();
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}
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}
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/**
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* @return string
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*/
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protected function getResultSetClassName()
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{
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return isset($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['solr']['searchResultSetClassName ']) ?
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$GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['solr']['searchResultSetClassName '] : SearchResultSet::class;
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}
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/**
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* Performs a search and returns a SearchResultSet.
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*
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* @param SearchRequest $searchRequest
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* @return SearchResultSet
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*/
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public function search(SearchRequest $searchRequest)
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{
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$resultSet = $this->getInitializedSearchResultSet($searchRequest);
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$this->lastResultSet = $resultSet;
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$resultSet = $this->handleSearchHook('beforeSearch', $resultSet);
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if ($this->shouldReturnEmptyResultSetWithoutExecutedSearch($searchRequest)) {
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$resultSet->setHasSearched(false);
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return $resultSet;
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}
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$query = $this->queryBuilder->buildSearchQuery($searchRequest->getRawUserQuery(), (int)$searchRequest->getResultsPerPage(), $searchRequest->getAdditionalFilters());
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$this->initializeRegisteredSearchComponents($query, $searchRequest);
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$resultSet->setUsedQuery($query);
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// performing the actual search, sending the query to the Solr server
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$query = $this->modifyQuery($query, $searchRequest, $this->search);
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$response = $this->doASearch($query, $searchRequest);
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if ((int)$searchRequest->getResultsPerPage() === 0) {
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// when resultPerPage was forced to 0 we also set the numFound to 0 to hide results, e.g.
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// when results for the initial search should not be shown.
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// @extensionScannerIgnoreLine
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$response->response->numFound = 0;
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}
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$resultSet->setHasSearched(true);
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$resultSet->setResponse($response);
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$this->getParsedSearchResults($resultSet);
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$resultSet->setUsedAdditionalFilters($this->queryBuilder->getAdditionalFilters());
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/** @var $variantsProcessor VariantsProcessor */
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$variantsProcessor = GeneralUtility::makeInstance(
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VariantsProcessor::class,
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/** @scrutinizer ignore-type */ $this->typoScriptConfiguration,
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/** @scrutinizer ignore-type */ $this->searchResultBuilder
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);
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$variantsProcessor->process($resultSet);
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/** @var $searchResultReconstitutionProcessor ResultSetReconstitutionProcessor */
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$searchResultReconstitutionProcessor = GeneralUtility::makeInstance(ResultSetReconstitutionProcessor::class);
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$searchResultReconstitutionProcessor->process($resultSet);
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$resultSet = $this->getAutoCorrection($resultSet);
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return $this->handleSearchHook('afterSearch', $resultSet);
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}
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/**
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* Uses the configured parser and retrieves the parsed search resutls.
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*
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* @param SearchResultSet $resultSet
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*/
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protected function getParsedSearchResults($resultSet)
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{
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/** @var ResultParserRegistry $parserRegistry */
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$parserRegistry = GeneralUtility::makeInstance(ResultParserRegistry::class, /** @scrutinizer ignore-type */ $this->typoScriptConfiguration);
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$useRawDocuments = (bool)$this->typoScriptConfiguration->getValueByPathOrDefaultValue('plugin.tx_meilisearch.features.useRawDocuments', false);
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$parserRegistry->getParser($resultSet)->parse($resultSet, $useRawDocuments);
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}
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/**
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* Evaluates conditions on the request and configuration and returns true if no search should be triggered and an empty
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* SearchResultSet should be returned.
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*
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* @param SearchRequest $searchRequest
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* @return bool
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*/
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protected function shouldReturnEmptyResultSetWithoutExecutedSearch(SearchRequest $searchRequest)
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{
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if ($searchRequest->getRawUserQueryIsNull() && !$this->getInitialSearchIsConfigured()) {
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// when no rawQuery was passed or no initialSearch is configured, we pass an empty result set
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return true;
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}
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if ($searchRequest->getRawUserQueryIsEmptyString() && !$this->typoScriptConfiguration->getSearchQueryAllowEmptyQuery()) {
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// the user entered an empty query string "" or " " and empty querystring is not allowed
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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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* Initializes the SearchResultSet from the SearchRequest
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*
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* @param SearchRequest $searchRequest
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* @return SearchResultSet
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*/
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protected function getInitializedSearchResultSet(SearchRequest $searchRequest):SearchResultSet
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{
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/** @var $resultSet SearchResultSet */
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$resultSetClass = $this->getResultSetClassName();
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$resultSet = $this->objectManager->get($resultSetClass);
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$resultSet->setUsedSearchRequest($searchRequest);
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$resultSet->setUsedPage((int)$searchRequest->getPage());
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$resultSet->setUsedResultsPerPage((int)$searchRequest->getResultsPerPage());
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$resultSet->setUsedSearch($this->search);
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return $resultSet;
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}
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/**
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* Executes the search and builds a fake response for a current bug in Apache Solr 6.3
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*
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* @param Query $query
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* @param SearchRequest $searchRequest
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* @return ResponseAdapter
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*/
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protected function doASearch($query, $searchRequest): ResponseAdapter
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{
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// the offset mulitplier is page - 1 but not less then zero
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$offsetMultiplier = max(0, $searchRequest->getPage() - 1);
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$offSet = $offsetMultiplier * (int)$searchRequest->getResultsPerPage();
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$response = $this->search->search($query, $offSet, null);
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if($response === null) {
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throw new SolrIncompleteResponseException('The response retrieved from solr was incomplete', 1505989678);
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}
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return $response;
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}
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/**
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* @param SearchResultSet $searchResultSet
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* @return SearchResultSet
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*/
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protected function getAutoCorrection(SearchResultSet $searchResultSet)
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{
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// no secondary search configured
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if (!$this->typoScriptConfiguration->getSearchSpellcheckingSearchUsingSpellCheckerSuggestion()) {
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return $searchResultSet;
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}
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// more then zero results
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if ($searchResultSet->getAllResultCount() > 0) {
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return $searchResultSet;
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}
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// no corrections present
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if (!$searchResultSet->getHasSpellCheckingSuggestions()) {
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return $searchResultSet;
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}
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$searchResultSet = $this->peformAutoCorrection($searchResultSet);
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return $searchResultSet;
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}
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/**
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* @param SearchResultSet $searchResultSet
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* @return SearchResultSet
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*/
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protected function peformAutoCorrection(SearchResultSet $searchResultSet)
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{
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$searchRequest = $searchResultSet->getUsedSearchRequest();
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$suggestions = $searchResultSet->getSpellCheckingSuggestions();
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$maximumRuns = $this->typoScriptConfiguration->getSearchSpellcheckingNumberOfSuggestionsToTry(1);
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$runs = 0;
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foreach ($suggestions as $suggestion) {
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$runs++;
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$correction = $suggestion->getSuggestion();
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$initialQuery = $searchRequest->getRawUserQuery();
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$searchRequest->setRawQueryString($correction);
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$searchResultSet = $this->search($searchRequest);
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if ($searchResultSet->getAllResultCount() > 0) {
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$searchResultSet->setIsAutoCorrected(true);
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$searchResultSet->setCorrectedQueryString($correction);
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$searchResultSet->setInitialQueryString($initialQuery);
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break;
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}
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if ($runs > $maximumRuns) {
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break;
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}
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}
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return $searchResultSet;
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}
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||
|
|
/**
|
||
|
|
* Allows to modify a query before eventually handing it over to Solr.
|
||
|
|
*
|
||
|
|
* @param Query $query The current query before it's being handed over to Solr.
|
||
|
|
* @param SearchRequest $searchRequest The searchRequest, relevant in the current context
|
||
|
|
* @param Search $search The search, relevant in the current context
|
||
|
|
* @throws \UnexpectedValueException
|
||
|
|
* @return Query The modified query that is actually going to be given to Solr.
|
||
|
|
*/
|
||
|
|
protected function modifyQuery(Query $query, SearchRequest $searchRequest, Search $search)
|
||
|
|
{
|
||
|
|
// hook to modify the search query
|
||
|
|
if (is_array($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['solr']['modifySearchQuery'])) {
|
||
|
|
foreach ($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['solr']['modifySearchQuery'] as $classReference) {
|
||
|
|
$queryModifier = $this->objectManager->get($classReference);
|
||
|
|
|
||
|
|
if ($queryModifier instanceof Modifier) {
|
||
|
|
if ($queryModifier instanceof SearchAware) {
|
||
|
|
$queryModifier->setSearch($search);
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($queryModifier instanceof SearchRequestAware) {
|
||
|
|
$queryModifier->setSearchRequest($searchRequest);
|
||
|
|
}
|
||
|
|
|
||
|
|
$query = $queryModifier->modifyQuery($query);
|
||
|
|
} else {
|
||
|
|
throw new \UnexpectedValueException(
|
||
|
|
get_class($queryModifier) . ' must implement interface ' . Modifier::class,
|
||
|
|
1310387414
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $query;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Retrieves a single document from solr by document id.
|
||
|
|
*
|
||
|
|
* @param string $documentId
|
||
|
|
* @return SearchResult
|
||
|
|
*/
|
||
|
|
public function getDocumentById($documentId)
|
||
|
|
{
|
||
|
|
/* @var $query SearchQuery */
|
||
|
|
$query = $this->queryBuilder->newSearchQuery($documentId)->useQueryFields(QueryFields::fromString('id'))->getQuery();
|
||
|
|
$response = $this->search->search($query, 0, 1);
|
||
|
|
$parsedData = $response->getParsedData();
|
||
|
|
// @extensionScannerIgnoreLine
|
||
|
|
$resultDocument = isset($parsedData->response->docs[0]) ? $parsedData->response->docs[0] : null;
|
||
|
|
|
||
|
|
if (!$resultDocument instanceof Document) {
|
||
|
|
throw new \UnexpectedValueException("Response did not contain a valid Document object");
|
||
|
|
}
|
||
|
|
|
||
|
|
return $this->searchResultBuilder->fromApacheSolrDocument($resultDocument);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This method is used to call the registered hooks during the search execution.
|
||
|
|
*
|
||
|
|
* @param string $eventName
|
||
|
|
* @param SearchResultSet $resultSet
|
||
|
|
* @return SearchResultSet
|
||
|
|
*/
|
||
|
|
private function handleSearchHook($eventName, SearchResultSet $resultSet)
|
||
|
|
{
|
||
|
|
if (!is_array($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['solr'][$eventName])) {
|
||
|
|
return $resultSet;
|
||
|
|
}
|
||
|
|
|
||
|
|
foreach ($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['solr'][$eventName] as $classReference) {
|
||
|
|
$afterSearchProcessor = $this->objectManager->get($classReference);
|
||
|
|
if ($afterSearchProcessor instanceof SearchResultSetProcessor) {
|
||
|
|
$afterSearchProcessor->process($resultSet);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $resultSet;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @return SearchResultSet
|
||
|
|
*/
|
||
|
|
public function getLastResultSet()
|
||
|
|
{
|
||
|
|
return $this->lastResultSet;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This method returns true when the last search was executed with an empty query
|
||
|
|
* string or whitespaces only. When no search was triggered it will return false.
|
||
|
|
*
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function getLastSearchWasExecutedWithEmptyQueryString()
|
||
|
|
{
|
||
|
|
$wasEmptyQueryString = false;
|
||
|
|
if ($this->lastResultSet != null) {
|
||
|
|
$wasEmptyQueryString = $this->lastResultSet->getUsedSearchRequest()->getRawUserQueryIsEmptyString();
|
||
|
|
}
|
||
|
|
|
||
|
|
return $wasEmptyQueryString;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
protected function getInitialSearchIsConfigured()
|
||
|
|
{
|
||
|
|
return $this->typoScriptConfiguration->getSearchInitializeWithEmptyQuery() || $this->typoScriptConfiguration->getSearchShowResultsOfInitialEmptyQuery() || $this->typoScriptConfiguration->getSearchInitializeWithQuery() || $this->typoScriptConfiguration->getSearchShowResultsOfInitialQuery();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @return mixed
|
||
|
|
*/
|
||
|
|
protected function getRegisteredSearchComponents()
|
||
|
|
{
|
||
|
|
return GeneralUtility::makeInstance(SearchComponentManager::class)->getSearchComponents();
|
||
|
|
}
|
||
|
|
}
|