<?php
/* For licensing terms, see /license.txt */
/**
* These files are a complete rework of the forum. The database structure is
* based on phpBB but all the code is rewritten. A lot of new functionalities
* are added:
* - forum categories and forums can be sorted up or down, locked or made invisible
* - consistent and integrated forum administration
* - forum options: are students allowed to edit their post?
* moderation of posts (approval)
* reply only forums (students cannot create new threads)
* multiple forums per group
* - sticky messages
* - new view option: nested view
* - quoting a message
*
* @Author Patrick Cool < patrick.cool @ UGent . be > , Ghent University
* @Copyright Ghent University
* @Copyright Patrick Cool
*
* @package chamilo.forum
*/
// Name of the language file that needs to be included.
$language_file = 'forum';
// Including the global initialization file.
require_once '../inc/global.inc.php';
$htmlHeadXtra[] = '< script type = "text/javascript" language = "javascript" >
$(document).ready(function(){ $(\'.hide-me\').slideUp() });
function hidecontent(content){ $(content).slideToggle(\'normal\'); }
< / script > ';
$htmlHeadXtra[] = '< script type = "text/javascript" language = "javascript" >
function advanced_parameters() {
if(document.getElementById(\'options\').style.display == \'none\') {
document.getElementById(\'options\').style.display = \'block\';
document.getElementById(\'plus_minus\').innerHTML=\' '.Display::return_icon('div_hide.gif',get_lang('Hide'),array('style'=>'vertical-align:middle')).' '.get_lang('AdvancedParameters').'\';
} else {
document.getElementById(\'options\').style.display = \'none\';
document.getElementById(\'plus_minus\').innerHTML=\' '.Display::return_icon('div_show.gif',get_lang('Show'),array('style'=>'vertical-align:middle')).' '.get_lang('AdvancedParameters').'\';
}
}
< / script > ';
// The section (tabs).
$this_section = SECTION_COURSES;
// Notification 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';
$nameTools = get_lang('Forums');
// Including necessary files.
require_once 'forumconfig.inc.php';
require_once 'forumfunction.inc.php';
/* MAIN DISPLAY SECTION */
/* Header */
if (!empty($_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('ToolGradebook')
);
}
$search_forum = isset($_GET['search']) ? Security::remove_XSS($_GET['search']) : '';
if (isset($_GET['action']) & & $_GET['action'] == 'add') {
switch ($_GET['content']) {
case 'forum':
$interbreadcrumb[] = array('url' => 'index.php?gradebook='.$gradebook.'& search='.$search_forum, 'name' => $nameTools);
$interbreadcrumb[] = array('url' => api_get_self().'?'.api_get_cidreq().'& gradebook='.$gradebook.'& action=add& content=forum', 'name' => get_lang('AddForum'));
break;
case 'forumcategory':
$interbreadcrumb[] = array('url' => 'index.php?gradebook='.$gradebook.'& search='.$search_forum, 'name' => $nameTools);
$interbreadcrumb[] = array('url' => api_get_self().'?'.api_get_cidreq().'& gradebook='.$gradebook.'& action=add& content=forumcategory', 'name' => get_lang('AddForumCategory'));
break;
default:
break;
}
} else {
$interbreadcrumb[] = array('url' => '#', 'name' => $nameTools);
}
Display::display_header('');
//api_display_tool_title($nameTools);
// Tool introduction
Display::display_introduction_section(TOOL_FORUM);
$form_count = 0;
/* ACTIONS */
$get_actions = isset($_GET['action']) ? $_GET['action'] : '';
if (api_is_allowed_to_edit(false, true)) {
//if is called from a learning path lp_id
if (!empty($_POST['lp_id'])){
$lp_id=Security::remove_XSS($_POST['lp_id']);
}
else{
$lp_id=Security::remove_XSS($_GET['lp_id']);
}
handle_forum_and_forumcategories($lp_id);
}
// Notification
if (isset($_GET['action']) & & $_GET['action'] == 'notify' & & isset($_GET['content']) & & isset($_GET['id'])) {
if (api_get_session_id() != 0 & & api_is_allowed_to_session_edit(false, true) == false) {
api_not_allowed();
}
$return_message = set_notification($_GET['content'], $_GET['id']);
Display :: display_confirmation_message($return_message, false);
}
get_whats_new();
$whatsnew_post_info = array();
$whatsnew_post_info = $_SESSION['whatsnew_post_info'];
/* TRACKING */
event_access_tool(TOOL_FORUM);
/*
RETRIEVING ALL THE FORUM CATEGORIES AND FORUMS
note: we do this here just after het handling of the actions to be sure that we already incorporate the
latest changes
*/
// Step 1: We store all the forum categories in an array $forum_categories.
$forum_categories = array();
$forum_categories_list = get_forum_categories();
// Step 2: We find all the forums (only the visible ones if it is a student).
$forum_list = array();
$forum_list = get_forums();
/* RETRIEVING ALL GROUPS AND THOSE OF THE USER */
// The groups of the user.
$groups_of_user = array();
$groups_of_user = GroupManager::get_group_ids($_course['dbName'], $_user['user_id']);
// All groups in the course (and sorting them as the id of the group = the key of the array).
if (!api_is_anonymous()) {
$all_groups = GroupManager::get_group_list();
if (is_array($all_groups)) {
foreach ($all_groups as $group) {
$all_groups[$group['id']] = $group;
}
}
}
/* CLEAN GROUP ID FOR AJAXFILEMANAGER */
if (isset($_SESSION['_gid'])) {
unset($_SESSION['_gid']);
}
/* ACTION LINKS */
$session_id = isset($_SESSION['id_session']) ? $_SESSION['id_session'] : false;
//if (api_is_allowed_to_edit() and !$_GET['action'])
echo '< div class = "actions" > ';
//if is called from learning path
if (!empty($_GET['lp_id']) || !empty($_POST['lp_id'])){
echo "< a href = \"../newscorm/lp_controller.php?".api_get_cidreq()."&gradebook=&action=add_item&type=step&lp_id=".$lp_id."#resource_tab-5\" > ".Display::return_icon('back.png', get_lang("BackTo").' '.get_lang("LearningPaths"),'','32')."< / a > ";
}
if (!empty($forum_list)) {
echo search_link();
}
if (api_is_allowed_to_edit(false, true)) {
echo '< a href = "'.api_get_self().'?'.api_get_cidreq().'&gradebook='.$gradebook.'&action=add&content=forumcategory&lp_id='.$lp_id.'" > '.Display::return_icon('new_folder.png', get_lang('AddForumCategory'),'','32').'< / a > ';
if (is_array($forum_categories_list) and !empty($forum_categories_list)) {
echo '< a href = "'.api_get_self().'?'.api_get_cidreq().'&gradebook='.$gradebook.'&action=add&content=forum&lp_id='.$lp_id.'" > '.Display::return_icon('new_forum.png', get_lang('AddForum'),'','32').'< / a > ';
}
}
echo '< / div > ';
/* Display Forum Categories and the Forums in it */
// Step 3: We display the forum_categories first.
if (is_array($forum_categories_list)) {
foreach ($forum_categories_list as $forum_category_key => $forum_category) {
// The forums in this category.
$forums_in_category = get_forums_in_category($forum_category['cat_id']);
echo '< table class = "forum_table" > ';
// Validacion when belongs to a session.
$session_img = api_get_session_image($forum_category['session_id'], $_user['status']);
if ((!isset($_SESSION['id_session']) || $_SESSION['id_session'] == 0) & & !empty($forum_category['session_name'])) {
$session_displayed = ' ('.Security::remove_XSS($forum_category['session_name']).')';
} else {
$session_displayed = '';
}
echo '< thead > ';
echo '< tr > < th class = "forum_head" colspan = "5" > ';
echo '< a href = "viewforumcategory.php?'.api_get_cidreq().'&forumcategory='.strval(intval($forum_category['cat_id'])).'" ' . class_visible_invisible ( strval ( intval ( $ forum_category [ ' visibility ' ] ) ) ) . ' > '.prepare4display($forum_category['cat_title']).$session_displayed.'< / a > '. $session_img .'< br / > ';
if ($forum_category['cat_comment'] != '' & & trim($forum_category['cat_comment']) != ' ') {
echo '< span class = "forum_description" > '.prepare4display($forum_category['cat_comment']).'< / span > ';
}
echo '< / th > ';
echo '< th style = "vertical-align: top;" align = "center" > ';
if (api_is_allowed_to_edit(false, true) & & !($forum_category['session_id'] == 0 & & intval($session_id) != 0)) {
echo '< a href = "'.api_get_self().'?'.api_get_cidreq().'&gradebook='.$gradebook.'&action=edit&content=forumcategory&id='.intval($forum_category['cat_id']).'" > '.Display::return_icon('edit.png', get_lang('Edit'), array(), 22).'< / a > ';
echo '< a href = "'.api_get_self().'?'.api_get_cidreq().'&gradebook='.$gradebook.'&action=delete&content=forumcategory&id='.intval($forum_category['cat_id'])." \ " onclick = \"javascript:if(!confirm('".addslashes(api_htmlentities(get_lang('DeleteForumCategory'), ENT_QUOTES ) ) . " ' ) ) return false ; \ " > ".Display::return_icon('delete.png', get_lang('Delete'), array(), 22).'< / a > ';
display_visible_invisible_icon('forumcategory', strval(intval($forum_category['cat_id'])), strval(intval($forum_category['visibility'])));
display_lock_unlock_icon('forumcategory', strval(intval($forum_category['cat_id'])), strval(intval($forum_category['locked'])));
display_up_down_icon('forumcategory', strval(intval($forum_category['cat_id'])), $forum_categories_list);
}
echo '< / th > ';
echo '< / tr > ';
echo '< / thead > ';
if (!empty($forums_in_category)) {
// Step 4: The interim headers (for the forum).
echo '< tr class = "forum_header" > ';
echo '< td > < / td > ';
echo '< td > '.get_lang('Forum').'< / td > ';
echo '< td > '.get_lang('Topics').'< / td > ';
echo '< td > '.get_lang('Posts').'< / td > ';
echo '< td > '.get_lang('LastPosts').'< / td > ';
echo '< td > '.get_lang('Actions').'< / td > ';
echo '< / tr > ';
// Step 5: We display all the forums in this category.
$forum_count = 0;
foreach ($forum_list as $key => $forum) {
// Here we clean the whatnew_post_info array a little bit because to display the icon we
// test if $whatsnew_post_info[$forum['forum_id']] is empty or not.
if (!empty($whatsnew_post_info)) {
if (is_array(isset($whatsnew_post_info[$forum['forum_id']]) ? $whatsnew_post_info[$forum['forum_id']] : null)) {
foreach ($whatsnew_post_info[$forum['forum_id']] as $key_thread_id => $new_post_array) {
if (empty($whatsnew_post_info[$forum['forum_id']][$key_thread_id])) {
unset($whatsnew_post_info[$forum['forum_id']][$key_thread_id]);
unset($_SESSION['whatsnew_post_info'][$forum['forum_id']][$key_thread_id]);
}
}
}
}
// Note: This can be speeded up if we transform the $forum_list to an array that uses the forum_category as the key.
if ($forum['forum_category'] == $forum_category['cat_id']) {
// The forum has to be showed if
// 1.v it is a not a group forum (teacher and student)
// 2.v it is a group forum and it is public (teacher and student)
// 3. it is a group forum and it is private (always for teachers only if the user is member of the forum
// if the forum is private and it is a group forum and the user is not a member of the group forum then it cannot be displayed
//if (!($forum['forum_group_public_private']=='private' AND !is_null($forum['forum_of_group']) AND !in_array($forum['forum_of_group'], $groups_of_user)))
//{
$show_forum = false;
// SHOULD WE SHOW THIS PARTICULAR FORUM
// you are teacher => show forum
if (api_is_allowed_to_edit(false, true)) {
//echo 'teacher';
$show_forum = true;
} else {
// you are not a teacher
//echo 'student';
// it is not a group forum => show forum (invisible forums are already left out see get_forums function)
if ($forum['forum_of_group'] == '0') {
//echo '-gewoon forum';
$show_forum = true;
} else {
// it is a group forum
//echo '-groepsforum';
// it is a group forum but it is public => show
if ($forum['forum_group_public_private'] == 'public') {
$show_forum = true;
//echo '-publiek';
} elseif ($forum['forum_group_public_private'] == 'private') {
// it is a group forum and it is private
//echo '-prive';
// it is a group forum and it is private but the user is member of the group
if (in_array($forum['forum_of_group'], $groups_of_user)) {
//echo '-is lid';
$show_forum = true;
} else {
//echo '-is GEEN lid';
$show_forum = false;
}
} else {
$show_forum = false;
}
}
}
if ($show_forum) {
$form_count++;
$mywhatsnew_post_info = isset($whatsnew_post_info[$forum['forum_id']]) ? $whatsnew_post_info[$forum['forum_id']] : null;
$forum_image = '';
echo '< td width = "20" > ';
// Showing the image
if (!empty($forum['forum_image'])) {
$image_path = api_get_path(WEB_COURSE_PATH).api_get_course_path().'/upload/forum/images/'.$forum['forum_image'];
$image_size = api_getimagesize($image_path);
$img_attributes = '';
if (!empty($image_size)) {
if ($image_size[0] > 100 || $image_size[1] > 100) {
//limit display width and height to 100px
$img_attributes = 'width="100" height="100"';
}
$forum_image = "< img src = \"$image_path\" $ img_attributes > ";
} else {
$forum_image = '';
}
echo $forum_image;
} else {
if ($forum['forum_of_group'] !== '0') {
if (is_array($mywhatsnew_post_info) & & !empty($mywhatsnew_post_info)) {
echo Display::return_icon('forumgroupnew.gif');
} else {
echo Display::return_icon('forumgroup.gif', get_lang('GroupForum'));
}
} else {
if (is_array($mywhatsnew_post_info) & & !empty($mywhatsnew_post_info)) {
echo Display::return_icon('forum.gif', get_lang('Forum'));
} else {
echo Display::return_icon('forum.gif');
}
}
}
echo '< / td > ';
// Validacion when belongs to a session
$session_img = api_get_session_image($forum['session_id'], $_user['status']);
if ($forum['forum_of_group'] != '0') {
$my_all_groups_forum_name = isset($all_groups[$forum['forum_of_group']]['name']) ? $all_groups[$forum['forum_of_group']]['name'] : null;
$my_all_groups_forum_id = isset($all_groups[$forum['forum_of_group']]['id']) ? $all_groups[$forum['forum_of_group']]['id'] : null;
$group_title = api_substr($my_all_groups_forum_name, 0, 30);
$forum_title_group_addition = ' (< a href = "../group/group_space.php?'.api_get_cidreq().'&gidReq='.$forum['forum_of_group'].'" class = "forum_group_link" > '.get_lang('GoTo').' '.$group_title.'< / a > )' . $session_img;
} else {
$forum_title_group_addition = '';
}
if ((!isset($_SESSION['id_session']) || $_SESSION['id_session'] == 0) & & !empty($forum['session_name'])) {
$session_displayed = ' ('.$forum['session_name'].')';
} else {
$session_displayed = '';
}
$forum['forum_of_group'] == 0 ? $groupid = '' : $groupid = $forum['forum_of_group'];
echo '< td > < a href = "viewforum.php?'.api_get_cidreq().'&gidReq='.intval($groupid).'&forum='.intval($forum['forum_id']).'" ' . class_visible_invisible ( strval ( intval ( $ forum [ ' visibility ' ] ) ) ) . ' > ';
//Forum title
echo prepare4display($forum['forum_title']).$session_displayed.'< / a > '.$forum_title_group_addition.'< br / > ';
echo '< span class = "forum_description" > '.prepare4display($forum['forum_comment']).'< / span > ';
echo '< / td > ';
//$number_forum_topics_and_posts = get_post_topics_of_forum($forum['forum_id']); // deprecated
// The number of topics and posts.
$number_threads = isset($forum['number_of_threads']) ? $forum['number_of_threads'] : null;
$number_posts = isset($forum['number_of_posts']) ? $forum['number_of_posts'] : null;
echo '< td > '.$number_threads.'< / td > ';
echo '< td > '.$number_posts.'< / td > ';
// The last post in the forum.
if ($forum['last_poster_name'] != '') {
$name = $forum['last_poster_name'];
$poster_id = 0;
} else {
$name = api_get_person_name($forum['last_poster_firstname'], $forum['last_poster_lastname']);
$poster_id = $forum['last_poster_id'];
}
echo '< td nowrap = "nowrap" > ';
if (!empty($forum['last_post_id'])) {
echo api_convert_and_format_date($forum['last_post_date'], null, date_default_timezone_get()).'< br / > '.get_lang('By').' '.display_user_link($poster_id, $name);
}
echo '< / td > ';
echo '< td nowrap = "nowrap" align = "center" > ';
if (api_is_allowed_to_edit(false, true) & & !($forum['session_id'] == 0 & & intval($session_id) != 0)) {
echo '< a href = "'.api_get_self().'?'.api_get_cidreq().'&gradebook='.$gradebook.'&action=edit&content=forum&id='.$forum['forum_id'].'" > '.Display::return_icon('edit.png',get_lang('Edit'), array(), 22).'< / a > ';
echo '< a href = "'.api_get_self().'?'.api_get_cidreq().'&gradebook='.$gradebook.'&action=delete&content=forum&id='.$forum['forum_id']." \ " onclick = \"javascript:if(!confirm('".addslashes(api_htmlentities(get_lang('DeleteForum'), ENT_QUOTES ) ) . " ' ) ) return false ; \ " > ".Display::return_icon('delete.png', get_lang('Delete'), array(), 22).'< / a > ';
display_visible_invisible_icon('forum', $forum['forum_id'], $forum['visibility']);
display_lock_unlock_icon('forum', $forum['forum_id'], $forum['locked']);
display_up_down_icon('forum', $forum['forum_id'], $forums_in_category);
}
$iconnotify = 'send_mail.gif';
$session_forum_notification = isset($_SESSION['forum_notification']['forum']) ? $_SESSION['forum_notification']['forum'] : false;
if (is_array($session_forum_notification)) {
if (in_array($forum['forum_id'], $session_forum_notification)) {
$iconnotify = 'send_mail_checked.gif';
}
}
if (!api_is_anonymous() & & api_is_allowed_to_session_edit(false, true) ) {
echo '< a href = "'.api_get_self().'?'.api_get_cidreq().'&gradebook='.$gradebook.'&action=notify&content=forum&id='.$forum['forum_id'].'" > '.Display::return_icon($iconnotify, get_lang('NotifyMe')).'< / a > ';
}
echo '< / td > < / tr > ';
}
}
}
} else {
//if (count($forum_list) == 0) {
echo '< tr > < td > '.get_lang('NoForumInThisCategory').'< / td > '.(api_is_allowed_to_edit(false, true) ? '< td colspan = "6" > < / td > ' : '< td colspan = "6" > < / td > ').'< / tr > ';
//}
}
echo '< / table > ';
}
}
/* FOOTER */
Display :: display_footer();
