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<?php |
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namespace Firesphere\SolrSearch\Results; |
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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 SilverStripe\Control\HTTPRequest; |
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use SilverStripe\ORM\ArrayList; |
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use SilverStripe\ORM\DataObject; |
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use SilverStripe\ORM\FieldType\DBField; |
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use SilverStripe\ORM\PaginatedList; |
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use SilverStripe\View\ArrayData; |
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use Solarium\Component\Result\Facet\Field; |
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use Solarium\Component\Result\FacetSet; |
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use Solarium\Component\Result\Highlighting\Highlighting; |
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use Solarium\Component\Result\Spellcheck\Collation; |
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use Solarium\Component\Result\Spellcheck\Result as SpellcheckResult; |
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use Solarium\QueryType\Select\Result\Document; |
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use Solarium\QueryType\Select\Result\Result; |
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class SearchResult |
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{ |
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/** |
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* @var BaseQuery |
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*/ |
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protected $query; |
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/** |
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* @var BaseIndex |
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*/ |
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protected $index; |
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/** |
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* @var ArrayList |
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*/ |
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protected $matches; |
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/** |
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* @var int |
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*/ |
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protected $totalItems; |
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/** |
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* @var ArrayData |
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*/ |
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protected $facets; |
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/** |
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* @var Highlighting |
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*/ |
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protected $highlight; |
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/** |
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* @var ArrayList |
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*/ |
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protected $spellcheck; |
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/** |
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* @var string |
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*/ |
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protected $collatedSpellcheck; |
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/** |
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* SearchResult constructor. |
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* Funnily enough, the $result contains the actual results, and has methods for the other things. |
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* See Solarium docs for this. |
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* |
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* @param Result $result |
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* @param BaseQuery $query |
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* @param BaseIndex $index |
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*/ |
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public function __construct(Result $result, BaseQuery $query, BaseIndex $index) |
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{ |
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$this->index = $index; |
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$this->query = $query; |
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$this->setMatches($result->getDocuments()); |
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$this->setFacets($result->getFacetSet()); |
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$this->setHighlight($result->getHighlighting()); |
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$this->setTotalItems($result->getNumFound()); |
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if ($query->hasSpellcheck()) { |
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$this->setSpellcheck($result->getSpellcheck()); |
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$this->setCollatedSpellcheck($result->getSpellcheck()); |
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} |
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} |
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/** |
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* @param HTTPRequest $request |
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* @return PaginatedList |
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*/ |
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public function getPaginatedMatches(HTTPRequest $request): PaginatedList |
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{ |
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// Get all the items in the set and push them in to the list |
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$items = $this->getMatches(); |
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/** @var PaginatedList $paginated */ |
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$paginated = PaginatedList::create($items, $request); |
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// Do not limit the pagination, it's done at Solr level |
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$paginated->setLimitItems(false); |
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// Override the count that's set from the item count |
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$paginated->setTotalItems($this->getTotalItems()); |
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// Set the start to the current page from start. |
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$paginated->setPageStart($this->query->getStart()); |
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// The amount of items per page to display |
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$paginated->setPageLength($this->query->getRows()); |
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return $paginated; |
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} |
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/** |
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* @return ArrayList |
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*/ |
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public function getMatches(): ArrayList |
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{ |
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$matches = $this->matches; |
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$items = []; |
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$idField = SolrCoreService::ID_FIELD; |
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$classIDField = SolrCoreService::CLASS_ID_FIELD; |
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foreach ($matches as $match) { |
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$item = $match; |
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if (!$match instanceof DataObject) { |
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$class = $match->ClassName; |
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/** @var DataObject $item */ |
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$item = $class::get()->byID($match->{$classIDField}); |
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} |
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if ($item && $item->exists()) { |
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$this->createExcerpt($idField, $match, $item); |
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$items[] = $item; |
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} |
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unset($match); |
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$item->destroy(); |
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} |
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return ArrayList::create($items); |
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} |
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/** |
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* @param array $result |
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* @return $this |
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* @todo support multiple classes |
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*/ |
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protected function setMatches($result): self |
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{ |
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$data = []; |
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/** @var Document $item */ |
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foreach ($result as $item) { |
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$data[] = ArrayData::create($item->getFields()); |
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} |
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$docs = ArrayList::create($data); |
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$this->matches = $docs; |
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return $this; |
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} |
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/** |
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* @param string $idField |
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* @param $match |
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* @param DataObject $item |
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*/ |
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protected function createExcerpt(string $idField, $match, DataObject $item): void |
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{ |
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$item->Excerpt = DBField::create_field( |
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'HTMLText', |
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str_replace( |
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'�', |
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'', |
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$this->getHighlightByID($match->{$idField}) |
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) |
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); |
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} |
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/** |
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* @param $docID |
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* @return string|null |
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*/ |
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public function getHighlightByID($docID): ?string |
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{ |
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$highlights = []; |
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if ($this->highlight && $docID) { |
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$highlights = []; |
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foreach ($this->highlight->getResult($docID) as $field => $highlight) { |
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$highlights[] = implode(' (...) ', $highlight); |
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} |
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} |
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return implode(' (...) ', $highlights); |
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} |
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/** |
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* @return int |
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*/ |
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public function getTotalItems(): int |
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{ |
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return $this->totalItems; |
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} |
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/** |
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* @param int $totalItems |
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* @return $this |
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*/ |
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public function setTotalItems($totalItems): self |
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{ |
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$this->totalItems = $totalItems; |
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return $this; |
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} |
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/** |
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* Allow overriding of matches with a custom result |
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* |
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* @param $matches |
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* @return mixed |
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*/ |
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public function setCustomisedMatches($matches) |
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{ |
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$this->matches = $matches; |
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return $matches; |
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} |
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/** |
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* @return Highlighting|null |
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*/ |
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public function getHighlight(): ?Highlighting |
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{ |
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return $this->highlight; |
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} |
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/** |
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* @param Highlighting|null $result |
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* @return $this |
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*/ |
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protected function setHighlight($result): self |
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{ |
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$this->highlight = $result; |
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return $this; |
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} |
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/** |
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* @return ArrayData |
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*/ |
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public function getFacets(): ArrayData |
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{ |
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return $this->facets; |
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} |
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/** |
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* @param FacetSet|null $facets |
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* @return $this |
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*/ |
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protected function setFacets($facets): self |
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{ |
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$this->facets = $this->buildFacets($facets); |
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return $this; |
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} |
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/** |
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* @return ArrayList |
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*/ |
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public function getSpellcheck(): ArrayList |
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{ |
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return $this->spellcheck; |
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} |
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/** |
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* @param SpellcheckResult|null $spellcheck |
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* @return SearchResult |
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*/ |
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public function setSpellcheck($spellcheck): self |
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{ |
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$spellcheckList = []; |
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if ($spellcheck && ($suggestions = $spellcheck->getSuggestion(0))) { |
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foreach ($suggestions->getWords() as $suggestion) { |
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$spellcheckList[] = ArrayData::create($suggestion); |
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} |
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} |
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$this->spellcheck = ArrayList::create($spellcheckList); |
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return $this; |
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} |
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/** |
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* @return mixed |
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*/ |
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public function getCollatedSpellcheck() |
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{ |
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return $this->collatedSpellcheck; |
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} |
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/** |
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* @param mixed $collatedSpellcheck |
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* @return $this |
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*/ |
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public function setCollatedSpellcheck($collatedSpellcheck): self |
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{ |
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/** @var array|Collation[] $collated */ |
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if ($collatedSpellcheck && ($collated = $collatedSpellcheck->getCollations())) { |
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$key = array_keys($collated); |
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$this->collatedSpellcheck = $collated[$key[0]]; |
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} |
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return $this; |
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} |
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/** |
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* Build the given list of key-value pairs in to a SilverStripe useable array |
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* @param FacetSet|null $facets |
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* @return ArrayData |
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*/ |
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protected function buildFacets($facets): ArrayData |
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{ |
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$facetArray = []; |
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if ($facets) { |
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$facetTypes = $this->index->getFacetFields(); |
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// Loop all available facet fields by type |
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foreach ($facetTypes as $class => $options) { |
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// Get the facets by its title |
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/** @var Field $typeFacets */ |
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$typeFacets = $facets->getFacet('facet-' . $options['Title']); |
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$values = $typeFacets->getValues(); |
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$results = ArrayList::create(); |
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// If there are values, get the items one by one and push them in to the list |
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if (count($values)) { |
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$this->getClassFacets($class, $values, $results); |
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} |
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// Put the results in to the array |
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$facetArray[$options['Title']] = $results; |
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} |
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} |
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// Return an ArrayList of the results |
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return ArrayData::create($facetArray); |
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} |
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/** |
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* @param $class |
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* @param array $values |
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* @param ArrayList $results |
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*/ |
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protected function getClassFacets($class, array $values, &$results): void |
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{ |
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$items = $class::get()->byIds(array_keys($values)); |
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foreach ($items as $item) { |
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// Set the FacetCount value to be sorted on later |
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$item->FacetCount = $values[$item->ID]; |
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$results->push($item); |
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} |
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// Sort the results by FacetCount |
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$results = $results->sort(['FacetCount' => 'DESC', 'Title' => 'ASC',]); |
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} |
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} |
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