+ $pageIdClause = '';
+ $revPageClause = '';
+
+ # If a list of page_ids was provided, limit results to that set of page_ids
+ if ( sizeof( $args ) > 0 ) {
+ $pageIdList = implode( ',', $args );
+ $pageIdClause = " WHERE page_id IN ({$pageIdList})";
+ $revPageClause = " AND rev_page IN ({$pageIdList})";
+ $this->output( "Limiting to {$tbl_pag}.page_id IN ({$pageIdList})\n" );
+ }
+
+ # Get "active" revisions from the page table
+ $this->output( "Searching for active revisions..." );
+ $res = $dbw->query( "SELECT page_latest FROM $tbl_pag{$pageIdClause}" );
+ $cur = array();
+ foreach ( $res as $row ) {
+ $cur[] = $row->page_latest;
+ }
+ $this->output( "done.\n" );
+
+ # Get all revisions that aren't in this set
+ $old = array();
+ $this->output( "Searching for inactive revisions..." );
+ $set = implode( ', ', $cur );
+ $res = $dbw->query( "SELECT rev_id FROM $tbl_rev WHERE rev_id NOT IN ( $set ){$revPageClause}" );
+ foreach ( $res as $row ) {
+ $old[] = $row->rev_id;
+ }
+ $this->output( "done.\n" );
+
+ # Inform the user of what we're going to do
+ $count = count( $old );
+ $this->output( "$count old revisions found.\n" );
+
+ # Delete as appropriate
+ if ( $delete && $count ) {
+ $this->output( "Deleting..." );
+ $set = implode( ', ', $old );
+ $dbw->query( "DELETE FROM $tbl_rev WHERE rev_id IN ( $set )" );
+ $this->output( "done.\n" );
+ }
+
+ # This bit's done
+ # Purge redundant text records
+ $dbw->commit();
+ if ( $delete ) {
+ $this->purgeRedundantText( true );
+ }
+ }