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<?php |
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/** |
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* Trait QueryComponentFacetTrait|Firesphere\SolrSearch\Traits\QueryComponentFacetTrait Trait to set Faceting on fields |
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* for the {@link \Firesphere\SolrSearch\Factories\QueryComponentFactory} |
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* |
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* @package Firesphere\SolrSearch\Traits |
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* @author Simon `Firesphere` Erkelens; Marco `Sheepy` Hermo |
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* @copyright Copyright (c) 2018 - now() Firesphere & Sheepy |
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*/ |
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namespace Firesphere\SolrSearch\Traits; |
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use Firesphere\SolrSearch\Indexes\BaseIndex; |
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use Firesphere\SolrSearch\Queries\BaseQuery; |
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use Minimalcode\Search\Criteria; |
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use Solarium\Component\Facet\Field; |
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use Solarium\QueryType\Select\Query\Query; |
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/** |
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* Trait QueryComponentFacetTrait deals with the facets. |
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* |
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* Faceting for any given query or index. |
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* |
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* @package Firesphere\SolrSearch\Traits |
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*/ |
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trait QueryComponentFacetTrait |
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{ |
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/** |
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* @var BaseIndex Index to query |
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*/ |
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protected $index; |
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/** |
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* @var BaseQuery Query to use |
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*/ |
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protected $query; |
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/** |
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* @var Query Solarium query |
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*/ |
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protected $clientQuery; |
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/** |
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* Add facets from the index |
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*/ |
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protected function buildFacets(): void |
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{ |
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$facets = $this->clientQuery->getFacetSet(); |
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// Facets should be set from the index configuration |
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foreach ($this->index->getFacetFields() as $class => $config) { |
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$shortClass = getShortFieldName($config['BaseClass']); |
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$field = $shortClass . '_' . str_replace('.', '_', $config['Field']); |
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/** @var Field $facet */ |
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$facet = $facets->createFacetField('facet-' . $config['Title']); |
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$facet->setField($field); |
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} |
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// Count however, comes from the query |
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$facets->setMinCount($this->query->getFacetsMinCount()); |
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} |
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/** |
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* Add AND facet filters based on the current request |
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*/ |
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protected function buildAndFacetQuery() |
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{ |
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$filterFacets = $this->query->getFacetFilter(); |
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/** @var null|Criteria $criteria */ |
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$criteria = null; |
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foreach ($this->index->getFacetFields() as $class => $config) { |
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if (isset($filterFacets[$config['Title']])) { |
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// For the API generator, this needs to be old style list(); |
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list($filter, $field) = $this->getFieldFacets($filterFacets, $config); |
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$this->createFacetCriteria($criteria, $field, $filter); |
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} |
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} |
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if ($criteria) { |
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$this->clientQuery |
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->createFilterQuery('facets') |
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->setQuery($criteria->getQuery()); |
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} |
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} |
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/** |
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* Combine all facets as AND facet filters for the results |
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* |
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* @param null|Criteria $criteria |
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* @param string $field |
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* @param array $filter |
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*/ |
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protected function createFacetCriteria(&$criteria, string $field, array $filter) |
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{ |
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if (!$criteria) { |
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$criteria = Criteria::where($field)->is(array_pop($filter)); |
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} |
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foreach ($filter as $filterValue) { |
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$criteria->andWhere($field)->is($filterValue); |
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} |
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} |
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/** |
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* Get the field and it's respected values to filter on to generate Criteria from |
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* |
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* @param array $filterFacets |
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* @param array $config |
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* @return array |
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*/ |
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protected function getFieldFacets(array $filterFacets, $config): array |
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{ |
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$filter = $filterFacets[$config['Title']]; |
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$filter = is_array($filter) ? $filter : [$filter]; |
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// Fields are "short named" for convenience |
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$shortClass = getShortFieldName($config['BaseClass']); |
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$field = $shortClass . '_' . str_replace('.', '_', $config['Field']); |
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return [$filter, $field]; |
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} |
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} |
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Firesphere /
silverstripe-solr-search
