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<?php |
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namespace Wikibase\QueryEngine\SQLStore\DVHandler; |
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use DataValues\DataValue; |
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use Doctrine\DBAL\Schema\Table; |
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use Doctrine\DBAL\Types\Type; |
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use InvalidArgumentException; |
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use Wikibase\DataModel\Entity\EntityIdValue; |
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use Wikibase\QueryEngine\SQLStore\DataValueHandler; |
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/** |
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* Represents the mapping between EntityIdValue and |
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* the corresponding table in the store. |
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* |
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* @since 0.1 |
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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 EntityIdHandler extends DataValueHandler { |
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/** |
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* @see DataValueHandler::getBaseTableName |
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* |
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* @return string |
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*/ |
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protected function getBaseTableName() { |
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return 'entityid'; |
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} |
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/** |
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* @see DataValueHandler::completeTable |
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*/ |
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protected function completeTable( Table $table ) { |
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// Same length as MediaWiki titles. |
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$table->addColumn( 'value_id', Type::STRING, array( 'length' => 255 ) ); |
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// Same length as in the Wikibase tables. |
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$table->addColumn( 'value_type', Type::STRING, array( 'length' => 32 ) ); |
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$table->addIndex( array( 'value_id' ) ); |
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$table->addIndex( array( 'value_type' ) ); |
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} |
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/** |
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* @see DataValueHandler::getEqualityFieldName |
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* |
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* @return string |
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*/ |
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public function getEqualityFieldName() { |
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return 'value_id'; |
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} |
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/** |
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* @see DataValueHandler::getInsertValues |
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* |
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* @param DataValue $value |
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* |
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* @return array |
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* @throws InvalidArgumentException |
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*/ |
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public function getInsertValues( DataValue $value ) { |
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if ( !( $value instanceof EntityIdValue ) ) { |
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throw new InvalidArgumentException( '$value is not a EntityIdValue.' ); |
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} |
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$values = array( |
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'value_id' => $value->getEntityId()->getSerialization(), |
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'value_type' => $value->getEntityId()->getEntityType(), |
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); |
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return $values; |
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} |
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/** |
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* @see DataValueHandler::getEqualityFieldValue |
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* |
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* @param DataValue $value |
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* |
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* @return string |
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* @throws InvalidArgumentException |
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*/ |
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public function getEqualityFieldValue( DataValue $value ) { |
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if ( !( $value instanceof EntityIdValue ) ) { |
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throw new InvalidArgumentException( '$value is not a EntityIdValue.' ); |
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} |
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return $value->getEntityId()->getSerialization(); |
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} |
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} |
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wmde /
WikibaseQueryEngine
