Extend support for interwiki and querysource, refs 1271

includes/dataitems/SMW_DI_Property.php

@@ -62,6 +62,13 @@ class DIProperty extends SMWDataItem {
 	 */
 	private $m_proptypeid;
 
+	/**
+	 * Interwiki prefix for when a property represents a non-local entity
+	 *
+	 * @var string
+	 */
+	private $interwiki = '';
+
 	/**
 	 * Initialise a property. This constructor checks that keys of
 	 * predefined properties do really exist (in the current configuration
@@ -188,6 +195,15 @@ public function getLabel() {
 		return $prefix . PropertyRegistry::getInstance()->findPropertyLabelById( $this->m_key );
 	}
 
+	/**
+	 * @since 2.4
+	 *
+	 * @param string $interwiki
+	 */
+	public function setInterwiki( $interwiki ) {
+		$this->interwiki = $interwiki;
+	}
+
 	/**
 	 * Get an object of type SMWDIWikiPage that represents the page which
 	 * relates to this property, or null if no such page exists. The latter
@@ -212,7 +228,7 @@ public function getDiWikiPage( $subobjectName = '' ) {
 		}
 
 		try {
-			return new SMWDIWikiPage( $dbkey, SMW_NS_PROPERTY, '', $subobjectName );
+			return new SMWDIWikiPage( $dbkey, SMW_NS_PROPERTY, $this->interwiki, $subobjectName );
 		} catch ( DataItemException $e ) {
 			return null;
 		}
@@ -257,7 +273,7 @@ public function findPropertyTypeID() {
 
 		if ( !isset( $this->m_proptypeid ) ) {
 			if ( $this->isUserDefined() ) { // normal property
-				$diWikiPage = new SMWDIWikiPage( $this->getKey(), SMW_NS_PROPERTY, '' );
+				$diWikiPage = new SMWDIWikiPage( $this->getKey(), SMW_NS_PROPERTY, $this->interwiki );
 				$typearray = StoreFactory::getStore()->getPropertyValues( $diWikiPage, new self( '_TYPE' ) );
 
 				if ( count( $typearray ) >= 1 ) { // some types given, pick one (hopefully unique)

includes/datavalues/SMW_DV_WikiPage.php

@@ -195,7 +195,7 @@ public function getShortWikiText( $linked = null ) {
 			return $this->m_caption !== false ? $this->m_caption : $this->getWikiValue();
 		}
 
-		if ( $this->m_dataitem->getNamespace() == NS_FILE ) {
+		if ( $this->m_dataitem->getNamespace() == NS_FILE && $this->m_dataitem->getInterwiki() === '' ) {
 			$linkEscape = '';
 			$defaultCaption = '|' . $this->getShortCaptionText() . '|frameless|border|text-top';
 		} else {
@@ -277,7 +277,7 @@ public function getLongWikiText( $linked = null ) {
 
 		if ( is_null( $linked ) || $linked === false || $this->m_outformat == '-' ) {
 			return $this->getWikiValue();
-		} elseif ( $this->m_dataitem->getNamespace() == NS_FILE ) {
+		} elseif ( $this->m_dataitem->getNamespace() == NS_FILE && $this->m_dataitem->getInterwiki() === '' ) {
 			// Embed images and other files
 			// Note that the embedded file links to the image, hence needs no additional link text.
 			// There should not be a linebreak after an impage, just like there is no linebreak after

includes/query/SMW_Query.php

@@ -59,6 +59,13 @@ class SMWQuery {
 	 */
 	private $subject;
 
+	/**
+	 * Describes a non-local (remote) query source
+	 *
+	 * @var string|null
+	 */
+	private $querySource = null;
+
 	/**
 	 * Constructor.
 	 * @param $description SMWDescription object describing the query conditions
@@ -94,6 +101,24 @@ public function getSubject() {
 		return $this->subject;
 	}
 
+	/**
+	 * @since 2.4
+	 *
+	 * @param string
+	 */
+	public function setQuerySource( $querySource ) {
+		$this->querySource = $querySource;
+	}
+
+	/**
+	 * @since 2.4
+	 *
+	 * @return string
+	 */
+	public function getQuerySource() {
+		return $this->querySource;
+	}
+
 	/**
 	 * Sets the mainlabel.
 	 *
@@ -226,7 +251,7 @@ public function setUnboundLimit( $limit ) {
 	 * @param array $sortKeys
 	 */
 	public function setSortKeys( array $sortKeys ) {
-		$this->sortKeys = $sortKeys;
+		$this->sortkeys = $sortKeys;
 	}
 
 	/**
@@ -235,7 +260,7 @@ public function setSortKeys( array $sortKeys ) {
 	 * @return array
 	 */
 	public function getSortKeys() {
-		return $this->sortKeys;
+		return $this->sortkeys;
 	}
 
 	/**
@@ -294,6 +319,13 @@ public function toArray() {
 				'querymode' => $this->querymode
 		);
 
+		// @2.4 Keep the queryID stable with previous versions unless
+		// a query source is selected. The "same" query executed on different
+		// remote systems requires a different queryID
+		if ( $this->querySource !== '' ) {
+			$serialized['parameters']['source'] = $this->querySource;
+		}
+
 		foreach ( $this->getExtraPrintouts() as $printout ) {
 			$serialization = $printout->getSerialisation();
 			if ( $serialization !== '?#' ) {

includes/query/SMW_QueryProcessor.php

@@ -125,6 +125,7 @@ static public function createQuery( $queryString, array $params, $context = self
 		$query->setExtraPrintouts( $extraPrintouts );
 		$query->setMainLabel( $params['mainlabel']->getValue() );
 		$query->addErrors( $qp->getErrors() ); // keep parsing errors for later output
+		$query->setQuerySource( $params['source']->getValue() );
 
 		// set mode, limit, and offset:
 		$query->querymode = $querymode;

includes/storage/SMW_QueryResult.php

@@ -354,9 +354,10 @@ public function toArray() {
 
 		return array_merge( $serializeArray, array(
 			'meta'=> array(
-				'hash'   => md5( FormatJson::encode( $serializeArray ) ),
+				'hash'   => HashBuilder::createHashIdForContent( $serializeArray ),
 				'count'  => $this->getCount(),
-				'offset' => $this->mQuery->getOffset()
+				'offset' => $this->mQuery->getOffset(),
+				'source' => $this->mQuery->getQuerySource()
 				)
 			)
 		);