<?php
/*
 * Gallery - a web based photo album viewer and editor
 * Copyright (C) 2000-2008 Bharat Mediratta
 *
 * 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.
 */

GalleryCoreApi::requireOnce('modules/core/classes/FlushDatabaseCacheTask.class');

/**
 * This is a MaintenanceTask that will reset the view counts for all albums/items.
 * Flushes database cache too to ensure all cached counts/dates are cleared.
 * @package GalleryCore
 * @subpackage Classes
 * @author Alan Harder <alan.harder@sun.com>
 * @version $Revision: 17580 $
 */
class ResetViewCountsTask extends FlushDatabaseCacheTask {
    /**
     * @see MaintenanceTask::getInfo
     */
    function getInfo() {
	global $gallery;

	$info['l10Domain'] = 'modules_core';
	$info['title'] = $gallery->i18n('Reset view counts');
	$info['description'] = $gallery->i18n(
	    'Reset number of views to zero for all albums and items.  This task flushes the ' .
	    'database cache as well.');
	$info['confirmRun'] = true;
	return $info;
    }

    /**
     * @see MaintenanceTask::run
     */
    function run() {
	global $gallery;
	$storage =& $gallery->getStorage();

	$resetCount = '
	UPDATE [GalleryItemAttributesMap] SET [::viewCount] = 0
	';
	$resetDate = '
	UPDATE [GalleryItem] SET [::viewedSinceTimestamp] = ?
	';

	$ret = $storage->execute($resetCount);
	if ($ret) {
	    return array($ret, null, null);
	}

	$ret = $storage->execute($resetDate, array(time()));
	if ($ret) {
	    return array($ret, null, null);
	}

	list ($ret, $module) = GalleryCoreApi::loadPlugin('module', 'core');
	if ($ret) {
	    return array($ret, null, null);
	}

	$details = array($module->translate('View counts reset successfully'));

	/* Call parent::run() to flush cache */
	list ($ret, $success, $subDetails) = parent::run();
	if ($ret) {
	    return array($ret, null, null);
	}

	return array(null, $success, array_merge($details, $subDetails));
    }
}
?>