1 files changed, 66 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/src/Exporter/ResourceBuilders/KeywordPropertyValueResourceBuilder.php b/www/wiki/extensions/SemanticMediaWiki/src/Exporter/ResourceBuilders/KeywordPropertyValueResourceBuilder.php
new file mode 100644
index 00000000..7855be2b
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/src/Exporter/ResourceBuilders/KeywordPropertyValueResourceBuilder.php
@@ -0,0 +1,66 @@
+<?php
+
+namespace SMW\Exporter\ResourceBuilders;
+
+use SMW\DataValueFactory;
+use SMW\DIProperty;
+use SMWDataItem as DataItem;
+use SMWDIBlob as DIBlob;
+use SMWDIUri as DIUri;
+use SMWExpData as ExpData;
+
+/**
+ * @private
+ *
+ * @license GNU GPL v2+
+ * @since 3.0
+ *
+ * @author mwjames
+ */
+class KeywordPropertyValueResourceBuilder extends PropertyValueResourceBuilder {
+
+	/**
+	 * @since 3.0
+	 *
+	 * {@inheritDoc}
+	 */
+	public function isResourceBuilderFor( DIProperty $property ) {
+		return $property->findPropertyTypeID() === '_keyw';
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * {@inheritDoc}
+	 */
+	public function addResourceValue( ExpData $expData, DIProperty $property, DataItem $dataItem ) {
+
+		$dataItem = new DIBlob(
+			DIBlob::normalize( $dataItem->getString() )
+		);
+
+		parent::addResourceValue( $expData, $property, $dataItem );
+
+		$dataValue = DataValueFactory::getInstance()->newDataValueByItem(
+			$dataItem,
+			$property
+		);
+
+		$uri = $dataValue->getUri();
+
+		/**
+		 * @see https://www.w3.org/2009/08/skos-reference/skos.rdf
+		 *
+		 * "skos:relatedMatch" has been defined as "... used to state an associative
+		 * mapping link between two conceptual resources in different concept
+		 * schemes ..."
+		 */
+		if ( $uri instanceof DIUri ) {
+			$expData->addPropertyObjectValue(
+				$this->exporter->getSpecialNsResource( 'skos', 'relatedMatch' ),
+				$this->exporter->getDataItemExpElement( $uri )
+			);
+		}
+	}
+
+}