<?php
/*
* Gallery - a web based photo album viewer and editor
* Copyright (C) 2000-2007 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.
*/
/**
* This controller will handle the deletion of items
* @package GalleryCore
* @subpackage UserInterface
* @author Bharat Mediratta <bharat@menalto.com>
* @version $Revision: 15513 $
*/
class ItemDeleteController extends GalleryController {
/**
* @see GalleryController::handleRequest
*/
function handleRequest($form) {
global $gallery;
$itemId = GalleryUtilities::getRequestVariables('itemId');
$status = $error = array();
if (isset($form['action']['delete'])) {
$status['deleted']['count'] = 0;
if (!empty($form['selectedIds'])) {
$selectedIds = array_keys($form['selectedIds']);
/* get the rootId, so we don't try to delete it */
list ($ret, $rootId) =
GalleryCoreApi::getPluginParameter('module', 'core', 'id.rootAlbum');
if ($ret) {
return array($ret, null);
}
$ret = GalleryCoreApi::studyPermissions($selectedIds);
if ($ret) {
return array($ret, null);
}
foreach ($selectedIds as $selectedId) {
/* Make sure we have permission to delete this item */
list ($ret, $permissions) = GalleryCoreApi::getPermissions($selectedId);
if ($ret) {
return array($ret, null);
}
if ( !isset($permissions['core.delete'])) {
return array(
GalleryCoreApi::error(ERROR_PERMISSION_DENIED, __FILE__, __LINE__,
"Don't have permission to delete this item"), null);
}
/* Make sure we're not deleting the root album */
if ($selectedId == $rootId) {
return array(GalleryCoreApi::error(ERROR_BAD_PARAMETER, __FILE__, __LINE__,
"Can't delete the root album"), null);
}
}
/* if we're still here then all are deletable */
$storage =& $gallery->getStorage();
foreach ($selectedIds as $selectedId) {
$ret = GalleryCoreApi::deleteEntityById($selectedId);
if ($ret) {
return array($ret, null);
}
if (!(++$status['deleted']['count'] % 20)) {
$ret = $storage->checkPoint();
if ($ret) {
return array($ret, null);
}
}
}
list ($ret, $success) = GalleryCoreApi::guaranteeAlbumHasThumbnail($itemId);
if ($ret) {
return array($ret, null);
}
/* What do we do if we weren't successful? No thumbnail, I guess */
}
/*
* Figure out where to redirect upon success.
* Can't use return url because it may be for an item we just deleted, but
* check for g2_page param and include that if found (matrix theme specific..)
*/
$results['redirect'] = array('view' => 'core.ShowItem',
'itemId' => $itemId);
$urlGenerator =& $gallery->getUrlGenerator();
list ($ret, $links) = $urlGenerator->getNavigationLinks(1);
if ($ret) {
return array($ret, null);
}
if (count($links) > 0 &&
preg_match('{' . GalleryUtilities::prefixFormVariable('page') . '=(\d+)}',
$links[0]['url'], $match)) {
$results['redirect']['page'] = $match[1];
}
} else if (isset($form['action']['next'])) {
$page = GalleryUtilities::getRequestVariables('page');
list ($ret, $peerIds) =
GalleryCoreApi::fetchChildItemIdsWithPermission($itemId, 'core.delete');
if ($ret) {
return array($ret, null);
}
$numPages = ceil(sizeof($peerIds) / $form['numPerPage']);
$results['delegate']['itemId'] = $itemId;
$results['delegate']['page'] = min($page + 1, $numPages);
} else if (isset($form['action']['previous'])) {
$page = GalleryUtilities::getRequestVariables('page');
$results['delegate']['itemId'] = $itemId;
$results['delegate']['page'] = max($page - 1, 1);
} else if (isset($form['action']['cancel'])) {
$results['return'] = 1;
}
if (!empty($results['delegate'])) {
$results['delegate']['view'] = 'core.ItemAdmin';
$results['delegate']['subView'] = 'core.ItemDelete';
}
$results['status'] = $status;
$results['error'] = $error;
return array(null, $results);
}
}
/**
* This view will prompt for selecting items to delete
*/
class ItemDeleteView extends GalleryView {
/**
* @see GalleryView::loadTemplate
*/
function loadTemplate(&$template, &$form) {
global $gallery;
$variables = GalleryUtilities::getRequestVariables('itemId', 'selectedId', 'page');
foreach ($variables as $key => $value) {
$variables[$key] = is_numeric($value) ? (int) $value : null;
}
list ($itemId, $selectedId, $page) = $variables;
if ($form['formName'] != 'ItemDelete') {
if ($selectedId) {
$form['selectedIds'][$selectedId] = true;
}
$form['destination'] = '';
$form['formName'] = 'ItemDelete';
$form['numPerPage'] = 15;
}
list ($ret, $item) = GalleryCoreApi::loadEntitiesById($itemId);
if ($ret) {
return array($ret, null);
}
list ($ret, $peerIds) =
GalleryCoreApi::fetchChildItemIdsWithPermission($itemId, 'core.delete');
if ($ret) {
return array($ret, null);
}
$peers = array();
$peerTypes = array();
$peerDescendentCounts = array();
$numPages = 1;
$selectedIds = array();
if (!empty($peerIds)) {
$numPages = ceil(sizeof($peerIds) / $form['numPerPage']);
if (empty($page)) {
/* determine which page we're on */
$page = 1;
for ($i = 0; $i < sizeof($peerIds); $i++) {
if ($peerIds[$i] == $selectedId) {
$page = ceil(($i + 1) / $form['numPerPage']);
}
}
}
$start = $form['numPerPage'] * ($page - 1);
$peerIds = array_slice($peerIds, $start, $form['numPerPage']);
if (isset($form['selectedIds'])) {
$selectedIds = $form['selectedIds'];
foreach ($peerIds as $peerId) {
if (isset($selectedIds[$peerId])) {
unset($selectedIds[$peerId]);
}
}
}
/* load peers */
list ($ret, $peerItems) = GalleryCoreApi::loadEntitiesById($peerIds);
if ($ret) {
return array($ret, null);
}
/* get peer thumbnails and resizes */
list ($ret, $derivatives) = GalleryCoreApi::fetchDerivativesByItemIds($peerIds);
if ($ret) {
return array($ret, null);
}
/* build peers table */
foreach ($peerItems as $peerItem) {
$peers[$peerItem->getId()] = (array)$peerItem;
if (GalleryUtilities::isA($peerItem, 'GalleryAlbumItem')) {
$peerTypes['album'][$peerItem->getId()] = 1;
} else {
$peerTypes['data'][$peerItem->getId()] = 1;
}
$peers[$peerItem->getId()]['selected'] =
isset($form['selectedIds'][$peerItem->getId()]);
/* While we're at it, attach thumbnails and resizes */
if (isset($derivatives[$peerItem->getId()])) {
foreach ($derivatives[$peerItem->getId()] as $derivative) {
$type = $derivative->getDerivativeType();
if (empty($peers[$peerItem->getId()]['resize']) &&
$type == DERIVATIVE_TYPE_IMAGE_RESIZE) {
$peers[$peerItem->getId()]['resize'] = (array)$derivative;
} else if ($type == DERIVATIVE_TYPE_IMAGE_THUMBNAIL) {
$peers[$peerItem->getId()]['thumbnail'] = (array)$derivative;
}
}
}
}
/* Get child counts */
if (isset($peerTypes['album'])) {
list ($ret, $peerDescendentCounts) =
GalleryCoreApi::fetchDescendentCounts(array_keys($peerTypes['album']));
if ($ret) {
return array($ret, null);
}
}
}
$urlGenerator =& $gallery->getUrlGenerator();
$ItemDelete = array();
$ItemDelete['canCancel'] = $urlGenerator->isNavigationBackPossible();
$ItemDelete['peers'] = $peers;
$ItemDelete['peerTypes'] = $peerTypes;
$ItemDelete['peerDescendentCounts'] = $peerDescendentCounts;
$ItemDelete['page'] = $page;
$ItemDelete['numPages'] = $numPages;
$ItemDelete['numPerPage'] = $form['numPerPage'];
$ItemDelete['selectedIds'] = array_keys($selectedIds);
$ItemDelete['selectedIdCount'] = count($selectedIds);
$template->setVariable('ItemDelete', $ItemDelete);
$template->setVariable('controller', 'core.ItemDelete');
$template->javascript('lib/yui/yahoo-min.js');
$template->javascript('lib/yui/dom-min.js');
$template->javascript('lib/yui/event-min.js');
$template->javascript('lib/yui/container-min.js');
return array(null, array('body' => 'modules/core/templates/ItemDelete.tpl'));
}
/**
* @see GalleryView::getViewDescription
*/
function getViewDescription() {
list ($ret, $core) = GalleryCoreApi::loadPlugin('module', 'core');
if ($ret) {
return array($ret, null);
}
return array(null, $core->translate('delete an item'));
}
}
?>
