update.php

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<?php
/*
 You may not change or alter any portion of this comment or credits
 of supporting developers from this source code or any supporting source code
 which is considered copyrighted (c) material of the original comment or credit authors.

 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.
*/

include dirname(dirname(__DIR__)) . DIRECTORY_SEPARATOR . 'mainfile.php';

$xoops = Xoops::getInstance();
$helper = Notifications::getInstance();

// RMV-NOTIFY

// This module expects the following arguments:
//
// not_submit
// not_redirect (to return back after update)
// not_mid (TODO)
// not_uid (TODO)
// not_list[1][params] = {category},{itemid},{event}
// not_list[1][status] = 1 if selected; 0 or missing if not selected
// etc...
// TODO: can we put arguments in the not_redirect argument??? do we need
// to specially encode them first???
// TODO: allow 'GET' also so we can process 'unsubscribe' requests??

if (!isset($_POST['not_submit']) || !isset($_POST['mid'])) {
    $xoops->redirect($_POST['not_redirect'], 3, XoopsLocale::E_NO_ACCESS_PERMISSION);
}

if (!$xoops->security()->check()) {
    $xoops->redirect($_POST['not_redirect'], 3, implode('<br />', $xoops->security()->getErrors()));
}

// NOTE: in addition to the templates provided in the block and view
// modes, we can have buttons, etc. which load the arguments to be
// read by this script.  That way a module can really customize its
// look as to where/how the notification options are made available.
$update_list = $_POST['not_list'];
$module_handler = $xoops->getHandlerModule();
$module = $xoops->getModuleById(intval($_POST['mid']));
$module_id = $module->getVar('mid');
$user_id = $xoops->isUser() ? $xoops->user->getVar('uid') : 0;

// For each event, update the notification depending on the status.
// If status=1, subscribe to the event; otherwise, unsubscribe.

// FIXME: right now I just ignore database errors (e.g. if already
//  subscribed)... deal with this more gracefully?
$notification_handler = $helper->getHandlerNotification();
foreach ($update_list as $update_item) {
    list($category, $item_id, $event) = preg_split('/,/', $update_item['params']);
    $status = !empty($update_item['status']) ? 1 : 0;
    if (!$status) {
        $notification_handler->unsubscribe($category, $item_id, $event, $module_id, $user_id);
    } else {
        $notification_handler->subscribe($category, $item_id, $event, null, $module_id);
    }
}

// TODO: something like grey box summary of actions (like multiple comment
// deletion), with a button to return back...  NOTE: we need some arguments
// to help us get back to where we were...

// TODO: finish integration with comments... i.e. need calls to
// notifyUsers at appropriate places... (need to figure out where
// comment submit occurs and where comment approval occurs)...
$redirect_args = array();
foreach ($update_list as $update_item) {
    list($category, $item_id, $event) = preg_split('/,/', $update_item['params']);
    $category_info = $helper->getCategory($category, $module->getVar('dirname'));
    if (!empty($category_info['item_name'])) {
        $redirect_args[$category_info['item_name']] = $item_id;
    }
}

// TODO: write a central function to put together args with '?' and '&'
// symbols...
$argstring = '';
$first_arg = 1;
foreach (array_keys($redirect_args) as $arg) {
    if ($first_arg) {
        $argstring .= "?" . $arg . "=" . $redirect_args[$arg];
        $first_arg = 0;
    } else {
        $argstring .= "&" . $arg . "=" . $redirect_args[$arg];
    }
}

$xoops->redirect($_POST['not_redirect'] . $argstring, 3, _MD_NOTIFICATIONS_UPDATEOK);