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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle 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 3 of the License, or
// (at your option) any later version.
//
// Moodle 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 Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Marks a discussion or forum read.
* @package mod
* @subpackage forumng
* @copyright 2011 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once('../../config.php');
require_once('mod_forumng.php');
// This script handles requests to mark a discussion or forum read (without
// actually reading it).
// Can be called with id= (cmid) or d= (discussion id).
$cmid = optional_param('id', 0, PARAM_INT);
$discussionid = optional_param('d', 0, PARAM_INT);
$postid = optional_param('p', 0, PARAM_INT);
if ((!$cmid && !$discussionid && !$postid) || ($cmid && $discussionid && $postid)) {
print_error('error_markreadparams', 'forumng');
}
$cloneid = optional_param('clone', 0, PARAM_INT);
$ajax = optional_param('ajax', 0, PARAM_BOOL);
// Permitted values 'view', 'discuss'
$back = optional_param('back', '', PARAM_ALPHA);
if (!preg_match('~^(discuss|view)$~', $back)) {
$back = 'view';
}
if (($back == 'discuss' && !$discussionid)) {
$back = 'view';
}
if ($postid) {
$back = 'discuss';
}
// Handle whole forum
if ($cmid) {
$forum = mod_forumng::get_from_cmid($cmid, $cloneid);
$groupid = optional_param('group', -1, PARAM_INT);
if ($groupid == 0) {
// Just the distinction between 0 and null
$groupid = mod_forumng::ALL_GROUPS;
} else if ($groupid == -1) {
$groupid = mod_forumng::NO_GROUPS;
}
$forum->require_view($groupid);
if (!$forum->can_mark_read()) {
print_error('error_cannotmarkread', 'forumng');
}
$forum->mark_read($groupid);
}
// Handle single discussion
if ($discussionid) {
$discussion = mod_forumng_discussion::get_from_id($discussionid, $cloneid);
$forum = $discussion->get_forum();
$discussion->require_view();
if (!$discussion->get_forum()->can_mark_read()) {
print_error('error_cannotmarkread', 'forumng');
}
$discussion->mark_read();
$cmid = $discussion->get_forum()->get_course_module_id();
}
// Handle single post.
if ($postid) {
$post = mod_forumng_post::get_from_id($postid, $cloneid);
$discussion = $post->get_discussion();
$forum = $discussion->get_forum();
$post->require_view();
if (!$forum->can_mark_read()) {
print_error('error_cannotmarkread', 'forumng');
}
$post->mark_read();
}
if ($ajax) {
echo 'ok';
exit;
}
// Redirect back
if ($back == 'discuss') {
redirect('discuss.php?' . $discussion->get_link_params(mod_forumng::PARAM_PLAIN) . ($postid ? "#p$postid" : ''));
} else {
redirect($forum->get_url(mod_forumng::PARAM_PLAIN));
}
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