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<?php |
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/** |
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* class QueryComponentFactory|Firesphere\SolrSearch\Factories\QueryComponentFactory Build a Query component |
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* |
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* @package Firesphere\SolrSearch\Factories |
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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\Factories; |
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use Firesphere\SolrSearch\Indexes\BaseIndex; |
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use Firesphere\SolrSearch\Queries\BaseQuery; |
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use Firesphere\SolrSearch\Services\SolrCoreService; |
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use Firesphere\SolrSearch\Traits\QueryComponentBoostTrait; |
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use Firesphere\SolrSearch\Traits\QueryComponentFacetTrait; |
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use Firesphere\SolrSearch\Traits\QueryComponentFilterTrait; |
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use Solarium\Core\Query\Helper; |
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use Solarium\QueryType\Select\Query\Query; |
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/** |
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* Class QueryComponentFactory |
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* |
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* Build a query component for each available build part |
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* |
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* @package Firesphere\SolrSearch\Factories |
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*/ |
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class QueryComponentFactory |
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{ |
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use QueryComponentFilterTrait; |
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use QueryComponentBoostTrait; |
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use QueryComponentFacetTrait; |
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/** |
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* Default fields that should always be added |
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* |
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* @var array |
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*/ |
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const DEFAULT_FIELDS = [ |
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SolrCoreService::ID_FIELD, |
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SolrCoreService::CLASS_ID_FIELD, |
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SolrCoreService::CLASSNAME, |
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]; |
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/** |
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* @var array Build methods to run |
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*/ |
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protected static $builds = [ |
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'Terms', |
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'ViewFilter', |
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'ClassFilter', |
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'Filters', |
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'Excludes', |
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'Facets', |
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'FacetQuery', |
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'Spellcheck', |
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]; |
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/** |
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* @var BaseQuery BaseQuery that needs to be executed |
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*/ |
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protected $query; |
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/** |
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* @var Helper Helper to escape the query terms properly |
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*/ |
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protected $helper; |
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/** |
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* @var array Resulting query parts as an array |
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*/ |
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protected $queryArray = []; |
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/** |
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* @var BaseIndex Index to query |
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*/ |
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protected $index; |
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/** |
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* Build the full query |
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* |
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* @return Query |
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*/ |
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public function buildQuery(): Query |
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{ |
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foreach (static::$builds as $build) { |
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$method = sprintf('build%s', $build); |
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$this->$method(); |
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} |
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// Set the start |
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$this->clientQuery->setStart($this->query->getStart()); |
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// Double the rows in case something has been deleted, but not from Solr |
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$this->clientQuery->setRows($this->query->getRows() * 2); |
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// Add highlighting before adding boosting |
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$this->clientQuery->getHighlighting()->setFields($this->query->getHighlight()); |
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// Add boosting |
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$this->buildBoosts(); |
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// Filter out the fields we want to see if they're set |
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$fields = $this->query->getFields(); |
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if (count($fields)) { |
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// We _ALWAYS_ need the ClassName for getting the DataObjects back |
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$fields = array_merge(static::DEFAULT_FIELDS, $fields); |
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$this->clientQuery->setFields($fields); |
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} |
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return $this->clientQuery; |
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} |
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/** |
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* Get the base query |
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* |
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* @return BaseQuery |
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*/ |
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public function getQuery(): BaseQuery |
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{ |
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return $this->query; |
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} |
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/** |
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* Set the base query |
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* |
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* @param BaseQuery $query |
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* @return self |
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*/ |
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public function setQuery(BaseQuery $query): self |
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{ |
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$this->query = $query; |
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return $this; |
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} |
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/** |
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* Get the array of terms used to query Solr |
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* |
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* @return array |
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*/ |
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public function getQueryArray(): array |
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{ |
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return array_merge($this->queryArray, $this->boostTerms); |
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} |
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/** |
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* Set the array of queries that are sent to Solr |
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* |
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* @param array $queryArray |
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* @return self |
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*/ |
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public function setQueryArray(array $queryArray): self |
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{ |
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$this->queryArray = $queryArray; |
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return $this; |
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} |
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/** |
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* Get the client Query components |
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* |
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* @return Query |
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*/ |
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public function getClientQuery(): Query |
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{ |
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return $this->clientQuery; |
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} |
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/** |
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* Set a custom Client Query object |
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* |
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* @param Query $clientQuery |
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* @return self |
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*/ |
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public function setClientQuery(Query $clientQuery): self |
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{ |
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$this->clientQuery = $clientQuery; |
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return $this; |
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} |
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/** |
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* Get the query helper |
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* |
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* @return Helper |
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*/ |
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public function getHelper(): Helper |
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{ |
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return $this->helper; |
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} |
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/** |
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* Set the Helper |
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* |
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* @param Helper $helper |
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* @return self |
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*/ |
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public function setHelper(Helper $helper): self |
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{ |
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$this->helper = $helper; |
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return $this; |
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} |
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/** |
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* Get the BaseIndex |
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* |
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* @return BaseIndex |
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*/ |
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public function getIndex(): BaseIndex |
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{ |
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return $this->index; |
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} |
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/** |
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* Set a BaseIndex |
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* |
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* @param BaseIndex $index |
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* @return self |
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*/ |
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public function setIndex(BaseIndex $index): self |
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{ |
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$this->index = $index; |
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return $this; |
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} |
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/** |
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* Build the terms and boost terms |
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* |
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* @return void |
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*/ |
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protected function buildTerms(): void |
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{ |
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$terms = $this->query->getTerms(); |
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$boostTerms = $this->getBoostTerms(); |
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foreach ($terms as $search) { |
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$term = $this->getBuildTerm($search); |
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$postfix = $this->isFuzzy($search); |
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// We can add the same term multiple times with different boosts |
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// Not ideal, but it might happen, so let's add the term itself only once |
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if (!in_array($term, $this->queryArray, true)) { |
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$this->queryArray[] = $term . $postfix; |
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} |
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// If boosting is set, add the fields to boost |
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if ($search['boost'] > 1) { |
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$boostTerms = $this->buildQueryBoost($search, $term, $boostTerms); |
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} |
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} |
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// Clean up the boost terms, remove doubles |
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$this->setBoostTerms(array_values(array_unique($boostTerms))); |
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} |
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/** |
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* Escape the search query |
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* |
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* @param string $searchTerm |
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* @return string |
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*/ |
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public function escapeSearch($searchTerm): string |
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{ |
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$term = []; |
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// Escape special characters where needed. Except for quoted parts, those should be phrased |
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preg_match_all('/"[^"]*"|\S+/', $searchTerm, $parts); |
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foreach ($parts[0] as $part) { |
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// As we split the parts, everything with two quotes is a phrase |
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// We need however, to strip out double quoting |
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if (substr_count($part, '"') === 2) { |
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// Strip all double quotes out for the phrase. |
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// @todo make this less clunky |
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// @todo add useful tests for this |
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$part = str_replace('"', '', $part); |
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$term[] = $this->helper->escapePhrase($part); |
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} else { |
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$term[] = $this->helper->escapeTerm($part); |
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} |
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} |
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return implode(' ', $term); |
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} |
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/** |
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* If the search is fuzzy, add fuzzyness |
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* |
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* @param $search |
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* @return string |
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*/ |
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protected function isFuzzy($search): string |
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{ |
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// When doing fuzzy search, postfix, otherwise, don't |
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if ($search['fuzzy']) { |
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return '~' . (is_numeric($search['fuzzy']) ? $search['fuzzy'] : ''); |
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} |
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return ''; |
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} |
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/** |
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* Add spellcheck elements |
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*/ |
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protected function buildSpellcheck(): void |
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{ |
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// Assuming the first term is the term entered |
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$queryString = implode(' ', $this->queryArray); |
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// Arbitrarily limit to 5 if the config isn't set |
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$count = BaseIndex::config()->get('spellcheckCount') ?: 5; |
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$spellcheck = $this->clientQuery->getSpellcheck(); |
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$spellcheck->setQuery($queryString); |
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$spellcheck->setCount($count); |
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$spellcheck->setBuild(true); |
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$spellcheck->setCollate(true); |
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$spellcheck->setExtendedResults(true); |
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$spellcheck->setCollateExtendedResults(true); |
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} |
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/** |
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* Get the escaped search string, or, if empty, a global search |
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* |
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* @param array $search |
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* @return string |
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*/ |
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protected function getBuildTerm($search) |
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{ |
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$term = $search['text']; |
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$term = $this->escapeSearch($term); |
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if ($term === '') { |
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$term = '*:*'; |
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} |
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return $term; |
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} |
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} |
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