+ function getQueryInfo() {
+ return array(
+ 'tables' => array( 'p1' => 'page', 'redirect', 'p2' => 'page' ),
+ 'fields' => array( 'namespace' => 'p1.page_namespace',
+ 'title' => 'p1.page_title',
+ 'value' => 'p1.page_title',
+ 'rd_namespace',
+ 'rd_title',
+ 'rd_fragment',
+ 'rd_interwiki',
+ 'redirid' => 'p2.page_id' ),
+ 'conds' => array( 'p1.page_is_redirect' => 1 ),
+ 'join_conds' => array( 'redirect' => array(
+ 'LEFT JOIN', 'rd_from=p1.page_id' ),
+ 'p2' => array( 'LEFT JOIN', array(
+ 'p2.page_namespace=rd_namespace',
+ 'p2.page_title=rd_title' ) ) )
+ );
+ }
+
+ function getOrderFields() {
+ return array ( 'p1.page_namespace', 'p1.page_title' );
+ }
+
+ /**
+ * Cache page existence for performance
+ *
+ * @param $db DatabaseBase
+ * @param $res ResultWrapper
+ */
+ function preprocessResults( $db, $res ) {
+ $batch = new LinkBatch;
+ foreach ( $res as $row ) {
+ $batch->add( $row->namespace, $row->title );
+ $batch->addObj( $this->getRedirectTarget( $row ) );
+ }
+ $batch->execute();
+
+ // Back to start for display
+ if ( $db->numRows( $res ) > 0 ) {
+ // If there are no rows we get an error seeking.
+ $db->dataSeek( $res, 0 );
+ }
+ }
+
+ protected function getRedirectTarget( $row ) {
+ if ( isset( $row->rd_title ) ) {
+ return Title::makeTitle( $row->rd_namespace,
+ $row->rd_title, $row->rd_fragment,
+ $row->rd_interwiki
+ );
+ } else {
+ $title = Title::makeTitle( $row->namespace, $row->title );
+ $article = WikiPage::factory( $title );
+ return $article->getRedirectTarget();
+ }
+ }
+
+ function formatResult( $skin, $result ) {