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<?php |
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namespace Wikibase\EntityStore\Api; |
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use Ask\Language\Description\AnyValue; |
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use Ask\Language\Description\Conjunction; |
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use Ask\Language\Description\Description; |
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use Ask\Language\Description\Disjunction; |
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use Ask\Language\Description\SomeProperty; |
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use Ask\Language\Description\ValueDescription; |
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use Ask\Language\Option\QueryOptions; |
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use DataValues\StringValue; |
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use DataValues\TimeValue; |
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use Wikibase\DataModel\Entity\EntityIdValue; |
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use Wikibase\DataModel\Entity\ItemId; |
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use Wikibase\DataModel\Entity\PropertyId; |
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use Wikibase\EntityStore\FeatureNotSupportedException; |
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use Wikibase\EntityStore\ItemIdForQueryLookup; |
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use WikidataQueryApi\Query\AndQuery; |
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use WikidataQueryApi\Query\BetweenQuery; |
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use WikidataQueryApi\Query\ClaimQuery; |
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use WikidataQueryApi\Query\OrQuery; |
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use WikidataQueryApi\Query\StringQuery; |
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use WikidataQueryApi\Services\SimpleQueryService; |
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/** |
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* Internal class |
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* |
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* @licence GPLv2+ |
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* @author Thomas Pellissier Tanon |
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*/ |
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class WikidataQueryItemIdForQueryLookup implements ItemIdForQueryLookup { |
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/** |
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* @var SimpleQueryService |
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*/ |
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private $queryService; |
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/** |
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* @param SimpleQueryService $queryService |
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*/ |
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public function __construct( SimpleQueryService $queryService ) { |
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$this->queryService = $queryService; |
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} |
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/** |
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* @see ItemIdForQueryLookup::getItemIdsForQuery |
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*/ |
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public function getItemIdsForQuery( Description $queryDescription, QueryOptions $queryOptions = null ) { |
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return $this->queryService->doQuery( $this->buildQueryForDescription( $queryDescription ) ); |
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} |
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private function buildQueryForDescription( Description $description, PropertyId $propertyId = null ) { |
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if( $description instanceof AnyValue ) { |
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return $this->buildQueryForAnyValue( $propertyId ); |
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} elseif( $description instanceof Conjunction ) { |
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return $this->buildQueryForConjunction( $description, $propertyId ); |
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} elseif( $description instanceof Disjunction ) { |
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return $this->buildQueryForDisjunction( $description, $propertyId ); |
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} elseif( $description instanceof SomeProperty ) { |
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return $this->buildQueryForSomeProperty( $description ); |
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} elseif( $description instanceof ValueDescription ) { |
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return $this->buildQueryForValueDescription( $description, $propertyId ); |
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} else { |
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throw new FeatureNotSupportedException( 'Unknown description type: ' . $description->getType() ); |
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} |
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} |
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private function buildQueryForAnyValue( PropertyId $propertyId = null ) { |
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if( $propertyId === null ) { |
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throw new FeatureNotSupportedException( 'Search for all items is not supported' ); |
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} |
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return new ClaimQuery( $propertyId ); |
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} |
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private function buildQueryForConjunction( Conjunction $conjunction, PropertyId $propertyId = null ) { |
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$parameters = []; |
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foreach( $conjunction->getDescriptions() as $description ) { |
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$parameters[] = $this->buildQueryForDescription( $description, $propertyId ); |
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} |
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return new AndQuery( $parameters ); |
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} |
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private function buildQueryForDisjunction( Disjunction $disjunction, PropertyId $propertyId = null ) { |
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$parameters = []; |
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foreach( $disjunction->getDescriptions() as $description ) { |
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$parameters[] = $this->buildQueryForDescription( $description, $propertyId ); |
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} |
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return new OrQuery( $parameters ); |
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} |
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private function buildQueryForSomeProperty( SomeProperty $someProperty ) { |
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$propertyIdValue = $someProperty->getPropertyId(); |
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if( !( $propertyIdValue instanceof EntityIdValue ) ) { |
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throw new FeatureNotSupportedException( 'PropertyId should be an EntityIdValue' ); |
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} |
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$propertyId = $propertyIdValue->getEntityId(); |
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if( !( $propertyId instanceof PropertyId ) ) { |
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throw new FeatureNotSupportedException( 'PropertyId should contain a PropertyId' ); |
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} |
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if( $someProperty->isSubProperty() ) { |
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throw new FeatureNotSupportedException( 'Sub-properties are not supported yet' ); |
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} else { |
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return $this->buildQueryForDescription( $someProperty->getSubDescription(), $propertyId ); |
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} |
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} |
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private function buildQueryForValueDescription( ValueDescription $valueDescription, PropertyId $propertyId = null ) { |
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if( $propertyId === null ) { |
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throw new FeatureNotSupportedException( 'Search of value on any properties is not supported' ); |
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} |
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if( !in_array( |
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$valueDescription->getComparator(), |
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[ ValueDescription::COMP_EQUAL, ValueDescription::COMP_LIKE ] |
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) ) { |
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throw new FeatureNotSupportedException( 'Unsupported ValueDescription comparator' ); |
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} |
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$dataValue = $valueDescription->getValue(); |
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if( $dataValue instanceof EntityIdValue ) { |
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return $this->buildEntityIdValueForSearch( $dataValue, $propertyId ); |
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} elseif( $dataValue instanceof StringValue ) { |
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return new StringQuery( $propertyId, $dataValue ); |
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} elseif( $dataValue instanceof TimeValue ) { |
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return new BetweenQuery( $propertyId, $dataValue, $dataValue ); |
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} else { |
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throw new FeatureNotSupportedException( 'Not supported DataValue type: ' . $dataValue->getType() ); |
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} |
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} |
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private function buildEntityIdValueForSearch( EntityIdValue $entityIdValue, PropertyId $propertyId ) { |
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$entityId = $entityIdValue->getEntityId(); |
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if( !( $entityId instanceof ItemId ) ) { |
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throw new FeatureNotSupportedException( 'Not supported entity type: ' . $entityId->getEntityType() ); |
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} |
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return new ClaimQuery( $propertyId, $entityId ); |
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} |
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} |
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ProjetPP /
WikibaseEntityStore
