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<?php |
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namespace ApacheSolrForTypo3\Solr\Query\Modifier; |
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/*************************************************************** |
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* Copyright notice |
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* |
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* (c) 2009-2015 Ingo Renner <[email protected]> |
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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 2 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 ApacheSolrForTypo3\Solr\Domain\Search\ResultSet\Facets\FacetQueryBuilderRegistry; |
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use ApacheSolrForTypo3\Solr\Domain\Search\ResultSet\Facets\FacetRegistry; |
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use ApacheSolrForTypo3\Solr\Domain\Search\ResultSet\Facets\FacetUrlDecoderRegistry; |
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use ApacheSolrForTypo3\Solr\Query; |
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use ApacheSolrForTypo3\Solr\System\Configuration\TypoScriptConfiguration; |
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use ApacheSolrForTypo3\Solr\Util; |
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use TYPO3\CMS\Core\Utility\GeneralUtility; |
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use TYPO3\CMS\Extbase\Object\ObjectManager; |
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/** |
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* Modifies a query to add faceting parameters |
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* |
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* @author Ingo Renner <[email protected]> |
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* @author Daniel Poetzinger <[email protected]> |
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* @author Sebastian Kurfuerst <[email protected]> |
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*/ |
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class Faceting implements Modifier |
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{ |
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/** |
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* @var \ApacheSolrForTypo3\Solr\System\Configuration\TypoScriptConfiguration |
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*/ |
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protected $configuration; |
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protected $facetParameters = []; |
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protected $facetFilters = []; |
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/** |
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* @var array |
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*/ |
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protected $allConfiguredFacets = []; |
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/** |
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* @var FacetRegistry |
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*/ |
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protected $facetRegistry = null; |
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/** |
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* @param TypoScriptConfiguration $solrConfiguration |
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* @param FacetRegistry $facetRegistry |
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*/ |
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public function __construct($solrConfiguration = null, FacetRegistry $facetRegistry = null) |
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{ |
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if (!is_null($solrConfiguration)) { |
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$this->configuration = $solrConfiguration; |
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} else { |
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$this->configuration = Util::getSolrConfiguration(); |
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} |
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$objectManager = GeneralUtility::makeInstance(ObjectManager::class); |
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$this->facetRegistry = is_null($facetRegistry) ? $objectManager->get(FacetRegistry::class) : $facetRegistry; |
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$this->allConfiguredFacets = $this->configuration->getSearchFacetingFacets(); |
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} |
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/** |
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* Modifies the given query and adds the parameters necessary for faceted |
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* search. |
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* |
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* @param Query $query The query to modify |
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* @return Query The modified query with faceting parameters |
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*/ |
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public function modifyQuery(Query $query) |
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{ |
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$query->setFaceting(); |
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$this->buildFacetingParameters(); |
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$this->addFacetQueryFilters(); |
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foreach ($this->facetParameters as $facetParameter => $value) { |
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$query->addQueryParameter($facetParameter, $value); |
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} |
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foreach ($this->facetFilters as $filter) { |
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$query->addFilter($filter); |
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} |
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return $query; |
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} |
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/** |
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* Delegates the parameter building to specialized functions depending on |
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* the type of facet to add. |
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* |
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*/ |
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protected function buildFacetingParameters() |
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{ |
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foreach ($this->allConfiguredFacets as $facetName => $facetConfiguration) { |
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$facetName = substr($facetName, 0, -1); |
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$type = isset($facetConfiguration['type']) ? $facetConfiguration['type'] : 'options'; |
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$facetParameterBuilder = $this->facetRegistry->getPackage($type)->getQueryBuilder(); |
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if (is_null($facetParameterBuilder)) { |
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throw new \InvalidArgumentException('No query build configured for facet ' . htmlspecialchars($facetName)); |
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} |
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$facetParameters = $facetParameterBuilder->build($facetName, $this->configuration); |
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$this->facetParameters = array_merge_recursive($this->facetParameters, $facetParameters); |
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} |
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} |
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/** |
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* Adds filters specified through HTTP GET as filter query parameters to |
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* the Solr query. |
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* |
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*/ |
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protected function addFacetQueryFilters() |
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{ |
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// todo refactor to use a request object |
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$resultParameters = GeneralUtility::_GET('tx_solr'); |
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// format for filter URL parameter: |
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// tx_solr[filter]=$facetName0:$facetValue0,$facetName1:$facetValue1,$facetName2:$facetValue2 |
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if (is_array($resultParameters['filter'])) { |
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$filters = array_map('urldecode', $resultParameters['filter']); |
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// $filters look like ['name:value1','name:value2','fieldname2:foo'] |
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$configuredFacets = $this->getConfiguredFacets(); |
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// first group the filters by facetName - so that we can |
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// decide later whether we need to do AND or OR for multiple |
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// filters for a certain facet/field |
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// $filtersByFacetName look like ['name' => ['value1', 'value2'], 'fieldname2' => ['foo']] |
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$filtersByFacetName = []; |
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foreach ($filters as $filter) { |
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// only split by the first colon to allow using colons in the filter value itself |
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list($filterFacetName, $filterValue) = explode(':', $filter, 2); |
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if (in_array($filterFacetName, $configuredFacets)) { |
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$filtersByFacetName[$filterFacetName][] = $filterValue; |
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} |
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} |
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foreach ($filtersByFacetName as $facetName => $filterValues) { |
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$facetConfiguration = $this->allConfiguredFacets[$facetName . '.']; |
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$type = isset($facetConfiguration['type']) ? $facetConfiguration['type'] : 'options'; |
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$filterEncoder = $this->facetRegistry->getPackage($type)->getUrlDecoder(); |
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if (is_null($filterEncoder)) { |
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throw new \InvalidArgumentException('No encoder configured for facet ' . htmlspecialchars($facetName)); |
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} |
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$tag = ''; |
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if ($facetConfiguration['keepAllOptionsOnSelection'] == 1 || $this->configuration->getSearchFacetingKeepAllFacetsOnSelection()) { |
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$tag = '{!tag=' . addslashes($facetConfiguration['field']) . '}'; |
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} |
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$filterParts = []; |
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foreach ($filterValues as $filterValue) { |
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$filterOptions = $facetConfiguration[$facetConfiguration['type'] . '.']; |
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if (empty($filterOptions)) { |
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$filterOptions = []; |
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} |
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$filterValue = $filterEncoder->decode($filterValue, $filterOptions); |
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$filterParts[] = $facetConfiguration['field'] . ':' . $filterValue; |
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} |
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$operator = ($facetConfiguration['operator'] == 'OR') ? ' OR ' : ' AND '; |
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$this->facetFilters[] = $tag . '(' . implode($operator, $filterParts) . ')'; |
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} |
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} |
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} |
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/** |
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* Gets the facets as configured through TypoScript |
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* |
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* @return array An array of facet names as specified in TypoScript |
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*/ |
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protected function getConfiguredFacets() |
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{ |
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$facets = []; |
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foreach ($this->allConfiguredFacets as $facetName => $facetConfiguration) { |
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$facetName = substr($facetName, 0, -1); |
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if (empty($facetConfiguration['field'])) { |
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// TODO later check for query and date, too |
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continue; |
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} |
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$facets[] = $facetName; |
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} |
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return $facets; |
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} |
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} |
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TYPO3-Solr /
ext-solr
