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<?php |
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namespace Wikibase\DataModel\Services\DataValue; |
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use DataValues\DataValue; |
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use Wikibase\DataModel\Entity\PropertyId; |
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use Wikibase\DataModel\Services\Lookup\PropertyDataTypeLookup; |
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use Wikibase\DataModel\Services\Lookup\PropertyDataTypeLookupException; |
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use Wikibase\DataModel\Snak\PropertyValueSnak; |
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use Wikibase\DataModel\Snak\Snak; |
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/** |
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* Find all data values for a specified data type in an array of snaks. |
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* |
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* @since 1.1 |
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* |
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* @license GPL-2.0-or-later |
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* @author Bene* < [email protected] > |
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*/ |
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class ValuesFinder { |
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/** |
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* @var PropertyDataTypeLookup |
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*/ |
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private $propertyDataTypeLookup; |
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public function __construct( PropertyDataTypeLookup $propertyDataTypeLookup ) { |
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$this->propertyDataTypeLookup = $propertyDataTypeLookup; |
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} |
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/** |
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* Find all data values for the specified data type in the array of snaks. |
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* |
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* @param Snak[] $snaks |
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* @param string $dataType |
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* |
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* @return DataValue[] |
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*/ |
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public function findFromSnaks( array $snaks, $dataType ) { |
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$found = []; |
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foreach ( $snaks as $snak ) { |
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if ( $snak instanceof PropertyValueSnak && |
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$this->isMatchingDataType( $snak->getPropertyId(), $dataType ) |
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) { |
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$dataValue = $snak->getDataValue(); |
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if ( method_exists( $dataValue, 'getHash' ) ) { |
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// We can only tag values as found that are |
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// hashable. DataValueObject should, but `getDataValue` |
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// only returns the `DataValue` interface, which doesn't |
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// define `getHash` |
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// @phan-suppress-next-line PhanUndeclaredMethod |
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$found[$dataValue->getHash()] = $dataValue; |
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} |
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} |
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} |
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return $found; |
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} |
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/** |
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* @param PropertyId $propertyId |
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* @param string $dataType |
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* |
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* @return bool |
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*/ |
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private function isMatchingDataType( PropertyId $propertyId, $dataType ) { |
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try { |
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return $this->propertyDataTypeLookup->getDataTypeIdForProperty( $propertyId ) === $dataType; |
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} catch ( PropertyDataTypeLookupException $ex ) { |
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return false; |
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} |
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} |
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} |
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wmde /
WikibaseDataModelServices
