<?php

/**
 * Delete archived (deleted from public) revisions from the database
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * http://www.gnu.org/copyleft/gpl.html
 *
 * @ingroup Maintenance
 */

class DeleteArchivedRevisionsImplementation {

	static public function doDelete($output) {
		$dbw = wfGetDB( DB_MASTER );

		$dbw->begin();

		$tbl_arch = $dbw->tableName( 'archive' );

		# Delete as appropriate
		$output->handleOutput( "Deleting archived revisions... " );
		$dbw->query( "TRUNCATE TABLE $tbl_arch" );

		$count = $dbw->affectedRows();
		$deletedRows = $count != 0;

		$output->handleOutput( "done. $count revisions deleted.\n" );

		# This bit's done
		# Purge redundant text records
		$dbw->commit();
		if( $deletedRows ) {
			$output->purgeRedundantText( true );
		}
	}
}