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<?php |
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namespace Queryr\Resources\Builders; |
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use DataValues\DataValue; |
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use DataValues\StringValue; |
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use Queryr\Resources\SimpleStatement; |
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use Wikibase\DataModel\Entity\EntityId; |
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use Wikibase\DataModel\Entity\EntityIdValue; |
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use Wikibase\DataModel\Entity\PropertyId; |
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use Wikibase\DataModel\Snak\PropertyValueSnak; |
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use Wikibase\DataModel\Statement\Statement; |
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use Wikibase\DataModel\Statement\StatementList; |
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/** |
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* @licence GNU GPL v2+ |
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* @author Jeroen De Dauw < [email protected] > |
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*/ |
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class SimpleStatementsBuilder { |
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private $languageCode; |
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private $labelLookup; |
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public function __construct( $languageCode, ResourceLabelLookup $labelLookup ) { |
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$this->languageCode = $languageCode; |
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$this->labelLookup = $labelLookup; |
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} |
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/** |
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* @param StatementList $statements |
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* |
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* @return array |
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*/ |
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public function buildFromStatements( StatementList $statements ) { |
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$simpleStatements = []; |
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foreach ( $statements->getPropertyIds() as $propertyId ) { |
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$simpleStatement = new SimpleStatement(); |
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$statementValues = $this->getStatementValuesWithPropertyId( $statements, $propertyId ); |
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if ( !empty( $statementValues ) ) { |
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$simpleStatement->values = $statementValues; |
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$simpleStatement->valueType = $statementValues[0]->getType(); |
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$simpleStatement->propertyName = $this->getEntityName( $propertyId ); |
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$simpleStatement->propertyId = $propertyId; |
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$simpleStatements[] = $simpleStatement; |
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} |
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} |
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return $simpleStatements; |
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} |
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private function getEntityName( EntityId $id ) { |
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$label = $this->labelLookup->getLabelByIdAndLanguage( $id, $this->languageCode ); |
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return $label === null ? $id->getSerialization() : $label; |
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} |
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/** |
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* @param StatementList $statements |
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* @param PropertyId $propertyId |
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* |
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* @return DataValue[] |
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*/ |
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private function getStatementValuesWithPropertyId( StatementList $statements, PropertyId $propertyId ) { |
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$statementValues = []; |
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/** |
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* @var Statement $statement |
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*/ |
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foreach ( $statements->getByPropertyId( $propertyId )->getBestStatements() as $statement ) { |
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$snak = $statement->getMainSnak(); |
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if ( $snak instanceof PropertyValueSnak ) { |
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$statementValues[] = $this->handle( $snak ); |
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} |
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} |
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return $statementValues; |
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} |
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private function handle( PropertyValueSnak $snak ) { |
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$value = $snak->getDataValue(); |
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if ( $value instanceof EntityIdValue ) { |
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return new StringValue( $this->getEntityName( $value->getEntityId() ) ); |
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} |
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return $value; |
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} |
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} |
JeroenDeDauw /
QueryrSerialization
