+ $this->output( "Done.\n" );
+ }
+
+ /**
+ * Populates the search index with content from all pages
+ */
+ protected function populateSearchIndex() {
+ $res = $this->db->select( 'page', 'MAX(page_id) AS count' );
+ $s = $this->db->fetchObject( $res );
+ $count = $s->count;
+ $this->output( "Rebuilding index fields for {$count} pages...\n" );
+ $n = 0;
+
+ while ( $n < $count ) {
+ if ( $n ) {
+ $this->output( $n . "\n" );
+ }
+ $end = $n + self::RTI_CHUNK_SIZE - 1;
+
+ $res = $this->db->select( array( 'page', 'revision', 'text' ),
+ array( 'page_id', 'page_namespace', 'page_title', 'old_flags', 'old_text' ),
+ array( "page_id BETWEEN $n AND $end", 'page_latest = rev_id', 'rev_text_id = old_id' ),
+ __METHOD__
+ );
+
+ foreach ( $res as $s ) {
+ $revtext = Revision::getRevisionText( $s );
+ $u = new SearchUpdate( $s->page_id, $s->page_title, $revtext );
+ $u->doUpdate();
+ }
+ $n += self::RTI_CHUNK_SIZE;
+ }
+ }
+
+ /**
+ * (MySQL only) Drops fulltext index before populating the table.
+ */
+ private function dropMysqlTextIndex() {
+ $searchindex = $this->db->tableName( 'searchindex' );
+ if ( $this->db->indexExists( 'searchindex', 'si_title' ) ) {
+ $this->output( "Dropping index...\n" );
+ $sql = "ALTER TABLE $searchindex DROP INDEX si_title, DROP INDEX si_text";
+ $this->db->query( $sql, __METHOD__ );
+ }
+ }
+
+ /**
+ * (MySQL only) Adds back fulltext index after populating the table.
+ */
+ private function createMysqlTextIndex() {
+ $searchindex = $this->db->tableName( 'searchindex' );
+ $this->output( "\nRebuild the index...\n" );
+ $sql = "ALTER TABLE $searchindex ADD FULLTEXT si_title (si_title), " .
+ "ADD FULLTEXT si_text (si_text)";
+ $this->db->query( $sql, __METHOD__ );
+ }
+
+ /**
+ * Deletes everything from search index.
+ */
+ private function clearSearchIndex() {
+ $this->output( 'Clearing searchindex table...' );
+ $this->db->delete( 'searchindex', '*', __METHOD__ );
+ $this->output( "Done\n" );
+ }
+}