1 files changed, 136 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/src/SQLStore/EntityStore/DIHandlers/DITimeHandler.php b/www/wiki/extensions/SemanticMediaWiki/src/SQLStore/EntityStore/DIHandlers/DITimeHandler.php
new file mode 100644
index 00000000..f9805c24
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/src/SQLStore/EntityStore/DIHandlers/DITimeHandler.php
@@ -0,0 +1,136 @@
+<?php
+
+namespace SMW\SQLStore\EntityStore\DIHandlers;
+
+use SMW\SQLStore\EntityStore\DataItemHandler;
+use SMW\SQLStore\EntityStore\Exception\DataItemHandlerException;
+use SMW\SQLStore\TableBuilder\FieldType;
+use SMWDataItem as DataItem;
+use SMWDITime as DITime;
+
+/**
+ * This class implements Store access to Time data items.
+ *
+ * @license GNU GPL v2+
+ * @since 1.8
+ *
+ * @author Nischay Nahata
+ */
+class DITimeHandler extends DataItemHandler {
+
+	/**
+	 * @since 1.8
+	 *
+	 * {@inheritDoc}
+	 */
+	public function getTableFields() {
+		return [
+			'o_serialized' => FieldType::FIELD_TITLE,
+			'o_sortkey' => FieldType::TYPE_DOUBLE
+		];
+	}
+
+	/**
+	 * @since 1.8
+	 *
+	 * {@inheritDoc}
+	 */
+	public function getFetchFields() {
+		return [
+			'o_serialized' => FieldType::FIELD_TITLE
+		];
+	}
+
+	/**
+	 * @since 1.8
+	 *
+	 * {@inheritDoc}
+	 */
+	public function getTableIndexes() {
+		return [
+
+			// API module pvalue lookup
+			'p_id,o_serialized',
+			'p_id,o_sortkey',
+
+			// SMWSQLStore3Readers::fetchSemanticData
+			// SELECT p.smw_title as prop,o_serialized AS v0, o_sortkey AS v2
+			// FROM `smw_di_time` INNER JOIN `smw_object_ids` AS p ON
+			// p_id=p.smw_id WHERE s_id='104822'	7.9291ms
+			// ... FROM `smw_fpt_sobj` INNER JOIN `smw_object_ids` AS o0 ON
+			// o_id=o0.smw_id WHERE s_id='104322'
+			's_id,p_id,o_sortkey,o_serialized',
+		];
+	}
+
+	/**
+	 * @since 3.0
+	 *
+	 * {@inheritDoc}
+	 */
+	public function getIndexHint( $key ) {
+
+		if ( 'property.subjects' && $this->isDbType( 'mysql' ) ) {
+			return 's_id';
+		}
+
+		return '';
+	}
+
+	/**
+	 * @since 1.8
+	 *
+	 * {@inheritDoc}
+	 */
+	public function getWhereConds( DataItem $dataItem ) {
+		return [ 'o_sortkey' => $dataItem->getSortKey() ];
+	}
+
+	/**
+	 * @since 1.8
+	 *
+	 * {@inheritDoc}
+	 */
+	public function getInsertValues( DataItem $dataItem ) {
+		return [
+			'o_serialized' => $dataItem->getSerialization(),
+			'o_sortkey' => $dataItem->getSortKey()
+		];
+	}
+
+	/**
+	 * This type is sorted by a numerical sortkey that maps time values to
+	 * a time line.
+	 *
+	 * @since 1.8
+	 *
+	 * {@inheritDoc}
+	 */
+	public function getIndexField() {
+		return 'o_sortkey';
+	}
+
+	/**
+	 * @since 1.8
+	 *
+	 * {@inheritDoc}
+	 */
+	public function getLabelField() {
+		return 'o_serialized';
+	}
+
+	/**
+	 * @since 1.8
+	 *
+	 * {@inheritDoc}
+	 */
+	public function dataItemFromDBKeys( $dbkeys ) {
+
+		if ( is_string( $dbkeys ) ) {
+			return DITime::doUnserialize( $dbkeys );
+		}
+
+		throw new DataItemHandlerException( 'Failed to create data item from DB keys.' );
+	}
+
+}