Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/forum/viewthread.php

303 lines
13 KiB

<?php
/*
==============================================================================
Dokeos - elearning and course management software
Copyright (c) 2004-2008 Dokeos SPRL
Copyright (c) 2003 Ghent University (UGent)
Copyright (c) 2001 Universite catholique de Louvain (UCL)
Copyright (c) various contributors
For a full list of contributors, see "credits.txt".
The full license can be read in "license.txt".
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.
See the GNU General Public License for more details.
Contact address: Dokeos, rue du Corbeau, 108, B-1030 Brussels, Belgium
Mail: info@dokeos.com
==============================================================================
*/
/**
* @Author Patrick Cool <patrick.cool@UGent.be>, Ghent University
* @Copyright Ghent University
* @Copyright Patrick Cool
*
* @package dokeos.forum
*/
// name of the language file that needs to be included
$language_file = array (
'forum',
'group'
);
// including the global dokeos file
require '../inc/global.inc.php';
// the section (tabs)
$this_section=SECTION_COURSES;
// notice for unauthorized people.
api_protect_course_script(true);
// including additional library scripts
require_once (api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php');
require_once (api_get_path(LIBRARY_PATH).'groupmanager.lib.php');
//require_once (api_get_path(LIBRARY_PATH).'resourcelinker.lib.php');
$nameTools=get_lang('Forum');
/*
-----------------------------------------------------------
Including necessary files
-----------------------------------------------------------
*/
require 'forumconfig.inc.php';
require_once 'forumfunction.inc.php';
//are we in a lp ?
$origin = '';
if (isset($_GET['origin'])) {
$origin = Security::remove_XSS($_GET['origin']);
}
/*
==============================================================================
MAIN DISPLAY SECTION
==============================================================================
*/
/*
-----------------------------------------------------------
Retrieving forum and forum categorie information
-----------------------------------------------------------
*/
// we are getting all the information about the current forum and forum category.
// note pcool: I tried to use only one sql statement (and function) for this
// but the problem is that the visibility of the forum AND forum cateogory are stored in the item_property table
$current_thread=get_thread_information($_GET['thread']); // note: this has to be validated that it is an existing thread
$current_forum=get_forum_information($current_thread['forum_id']); // note: this has to be validated that it is an existing forum.
$current_forum_category=get_forumcategory_information($current_forum['forum_category']);
$whatsnew_post_info=$_SESSION['whatsnew_post_info'];
/*
-----------------------------------------------------------
Header and Breadcrumbs
-----------------------------------------------------------
*/
if (!empty($_GET['gradebook']) && $_GET['gradebook']=='view' ) {
$_SESSION['gradebook']=Security::remove_XSS($_GET['gradebook']);
$gradebook= $_SESSION['gradebook'];
} /*elseif (empty($_GET['gradebook'])) {
unset($_SESSION['gradebook']);
$gradebook= '';
} */
if (!empty($gradebook) && $gradebook=='view') {
$interbreadcrumb[] = array (
'url' => '../gradebook/' . $_SESSION['gradebook_dest'],
'name' => get_lang('Gradebook')
);
}
if (!empty($_SESSION['toolgroup'])) {
$_clean['toolgroup']=(int)$_SESSION['toolgroup'];
$group_properties = GroupManager :: get_group_properties($_clean['toolgroup']);
$interbreadcrumb[] = array("url"=>"../group/group.php", "name" => get_lang('Groups'));
$interbreadcrumb[] = array("url"=>"../group/group_space.php?gidReq=".$_SESSION['toolgroup'], "name"=> get_lang('GroupSpace').' ('.$group_properties['name'].')');
$interbreadcrumb[] = array("url"=>"viewforum.php?forum=".Security::remove_XSS($_GET['forum'])."&amp;gidReq=".$_SESSION['toolgroup']."&amp;origin=".$origin."&amp;search=".Security::remove_XSS(urlencode($my_search)),"name" => prepare4display($current_forum['forum_title']));
$interbreadcrumb[] = array("url"=>"viewthread.php?forum=".Security::remove_XSS($_GET['forum'])."&gradebook=".$gradebook."&amp;thread=".Security::remove_XSS($_GET['thread']),"name" => prepare4display($current_thread['thread_title']));
Display :: display_header('');
api_display_tool_title($nameTools);
} else {
$my_search=isset($_GET['search']) ? $_GET['search'] : '';
if ($origin=='learnpath') {
include(api_get_path(INCLUDE_PATH).'reduced_header.inc.php');
} else {
$interbreadcrumb[]=array("url" => "index.php?gradebook=$gradebook&search=".Security::remove_XSS(urlencode($my_search)),"name" => $nameTools);
$interbreadcrumb[]=array("url" => "viewforumcategory.php?forumcategory=".$current_forum_category['cat_id']."&amp;origin=".$origin."&amp;search=".Security::remove_XSS(urlencode($my_search)),"name" => prepare4display($current_forum_category['cat_title']));
$interbreadcrumb[]=array("url" => "viewforum.php?forum=".Security::remove_XSS($_GET['forum'])."&amp;origin=".$origin."&amp;search=".Security::remove_XSS(urlencode($my_search)),"name" => prepare4display($current_forum['forum_title']));
$message = isset($message) ? $message : '';
// the last element of the breadcrumb navigation is already set in interbreadcrumb, so give empty string
Display :: display_header('');
api_display_tool_title($nameTools);
}
}
/*
-----------------------------------------------------------
Is the user allowed here?
-----------------------------------------------------------
*/
// if the user is not a course administrator and the forum is hidden
// then the user is not allowed here.
if (!api_is_allowed_to_edit(false,true) AND ($current_forum['visibility']==0 OR $current_thread['visibility']==0)) {
forum_not_allowed_here();
}
/*
-----------------------------------------------------------
Actions
-----------------------------------------------------------
*/
$my_action = isset($_GET['action']) ? $_GET['action'] : '';
if ($my_action=='delete' AND isset($_GET['content']) AND isset($_GET['id']) AND api_is_allowed_to_edit(false,true)) {
$message=delete_post($_GET['id']); // note: this has to be cleaned first
}
if (($my_action=='invisible' OR $my_action=='visible') AND isset($_GET['id']) AND api_is_allowed_to_edit(false,true)) {
$message=approve_post($_GET['id'],$_GET['action']); // note: this has to be cleaned first
}
if ($my_action=='move' and isset($_GET['post'])) {
$message=move_post_form();
}
/*
-----------------------------------------------------------
Display the action messages
-----------------------------------------------------------
*/
$my_message = isset($message) ? $message : '';
if ($my_message) {
Display :: display_confirmation_message(get_lang($my_message));
}
if ($my_message<>'PostDeletedSpecial') {
// in this case the first and only post of the thread is removed
// this increases the number of times the thread has been viewed
increase_thread_view($_GET['thread']);
/*
-----------------------------------------------------------
Action Links
-----------------------------------------------------------
*/
if ($origin=='learnpath') {
echo '<div style="height:15px">&nbsp;</div>';
}
echo '<div class="actions">';
echo '<span style="float:right;">'.search_link().'</span>';
if ($origin != 'learnpath') {
echo '<a href="index.php?gradebook='.$gradebook.'">'.Display::return_icon('back.png').' '.get_lang('BackToForumOverview').'</a>';
echo '<a href="viewforum.php?forum='.Security::remove_XSS($_GET['forum']).'">'.Display::return_icon('forum.gif').' '.get_lang('BackToForum').'</a>';
}
// the reply to thread link should only appear when the forum_category is not locked AND the forum is not locked AND the thread is not locked.
// if one of the three levels is locked then the link should not be displayed
if ($current_forum_category['locked']==0 AND $current_forum['locked']==0 AND $current_thread['locked']==0 OR api_is_allowed_to_edit(false,true)) {
// The link should only appear when the user is logged in or when anonymous posts are allowed.
if ($_user['user_id'] OR ($current_forum['allow_anonymous']==1 AND !$_user['user_id'])) {
//reply link
echo '<a href="reply.php?'.api_get_cidreq().'&forum='.Security::remove_XSS($_GET['forum']).'&amp;thread='.Security::remove_XSS($_GET['thread']).'&amp;action=replythread&origin='.$origin.'">'.Display::return_icon('forumthread_new.gif').get_lang('ReplyToThread').'</a>';
//new thread link
if ((api_is_allowed_to_edit(false,true) && !(api_is_course_coach() && $current_forum['session_id']!=$_SESSION['id_session'])) OR ($current_forum['allow_new_threads']==1 AND isset($_user['user_id'])) OR ($current_forum['allow_new_threads']==1 AND !isset($_user['user_id']) AND $current_forum['allow_anonymous']==1)) {
if ($current_forum['locked'] <> 1 AND $current_forum['locked'] <> 1) {
echo '&nbsp;&nbsp;';
/* if ( isset($_GET['gradebook']) && $_GET['gradebook']!=""){
$info_thread=get_thread_information($_GET['thread']);
echo '<a href="newthread.php?'.api_get_cidreq().'&forum='.$info_thread['forum_id'].'&origin='.$origin.'&gradebook='.Security::remove_XSS($_GET['gradebook']).'">'.Display::return_icon('forumthread_new.gif', get_lang('NewTopic')).' '.get_lang('NewTopic').'</a>';
} else {
echo '<a href="newthread.php?'.api_get_cidreq().'&forum='.Security::remove_XSS($_GET['forum']).'&origin='.$origin.'">'.Display::return_icon('forumthread_new.gif', get_lang('NewTopic')).' '.get_lang('NewTopic').'</a>';
} */
} else {
echo get_lang('ForumLocked');
}
}
}
}
// the different views of the thread
if ($origin != 'learnpath') {
$my_url = '<a href="viewthread.php?'.api_get_cidreq().'&amp;forum='.Security::remove_XSS($_GET['forum']).'&amp;origin='.$origin.'&amp;gradebook='.$gradebook.'&amp;thread='.Security::remove_XSS($_GET['thread']).'&amp;search='.Security::remove_XSS(urlencode($my_search));
echo $my_url.'&amp;view=flat&origin='.$origin.'&amp;gradebook='.$gradebook.'">'.Display::return_icon('forum_listview.gif').get_lang('FlatView').'</a>';
echo $my_url.'&amp;view=threaded&origin='.$origin.'"&amp;gradebook='.$gradebook.'">'.Display::return_icon('forum_threadedview.gif').get_lang('ThreadedView').'</a>';
echo $my_url.'&amp;view=nested&origin='.$origin.'"&gradebook='.$gradebook.'">'.Display::return_icon('forum_nestedview.gif').get_lang('NestedView').'</a>';
}
$my_url = null;
echo '</div>&nbsp;';
/*
-----------------------------------------------------------
Display Forum Category and the Forum information
-----------------------------------------------------------
*/
if (!isset($_SESSION['view'])) {
$viewmode=$current_forum['default_view'];
} else {
$viewmode=$_SESSION['view'];
}
$viewmode_whitelist=array('flat', 'threaded', 'nested');
if (isset($_GET['view']) and in_array($_GET['view'],$viewmode_whitelist)) {
$viewmode=$_GET['view'];
$_SESSION['view']=$viewmode;
}
if(empty($viewmode)) {
$viewmode = 'flat';
}
/*
-----------------------------------------------------------
Display Forum Category and the Forum information
-----------------------------------------------------------
*/
// we are getting all the information about the current forum and forum category.
// note pcool: I tried to use only one sql statement (and function) for this
// but the problem is that the visibility of the forum AND forum cateogory are stored in the item_property table
echo "<table class=\"data_table\" width='100%'>\n";
// the thread
echo "\t<tr>\n\t\t<th style=\"padding-left:5px;\" align=\"left\" colspan=\"6\">";
echo '<span class="forum_title">'.prepare4display($current_thread['thread_title']).'</span><br />';
if ($origin!='learnpath') {
echo '<span class="forum_low_description">'.prepare4display($current_forum_category['cat_title']).' - ';
}
echo prepare4display($current_forum['forum_title']).'<br />';
echo "</th>\n";
echo "\t</tr>\n";
echo '<span>'.prepare4display(isset($current_thread['thread_comment'])?$current_thread['thread_comment']:'').'</span>';
echo "</table>";
switch ($viewmode) {
case 'flat':
include_once('viewthread_flat.inc.php');
break;
case 'threaded':
include_once('viewthread_threaded.inc.php');
break;
case 'nested':
include_once('viewthread_nested.inc.php');
break;
default:
include_once('viewthread_flat.inc.php');
break;
}
} // if ($message<>'PostDeletedSpecial') // in this case the first and only post of the thread is removed
/*
==============================================================================
FOOTER
==============================================================================
*/
if ($origin!='learnpath') {
Display :: display_footer();
}