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- <?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
- ==============================================================================
- */
- /**
- * 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 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';
- // notice for unauthorized people.
- api_protect_course_script(true);
- // the section (tabs)
- $this_section=SECTION_COURSES;
- // including additional library scripts
- require_once (api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php');
- include_once (api_get_path(LIBRARY_PATH).'groupmanager.lib.php');
- $nameTools=get_lang('Forum');
- //are we in a lp ?
- $origin = '';
- $origin_string='';
- if (isset($_GET['origin'])) {
- $origin = Security::remove_XSS($_GET['origin']);
- $origin_string = '&origin='.$origin;
- }
- /*
- -----------------------------------------------------------
- Including necessary files
- -----------------------------------------------------------
- */
- require 'forumconfig.inc.php';
- require_once 'forumfunction.inc.php';
- $userid=api_get_user_id();
- $userinf=api_get_user_info($userid);
- /*
- ==============================================================================
- 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
- $my_forum_group=isset($_GET['gidReq'])?$_GET['gidReq']:'';
- $my_forum=isset($_GET['forum'])?$_GET['forum']:'';
- $val=GroupManager::user_has_access($userid,$my_forum_group,GROUP_TOOL_FORUM);
- if(!empty($my_forum_group)){
- if (api_is_allowed_to_edit(false,true) || $val==true) {
- $current_forum=get_forum_information($my_forum); // note: this has to be validated that it is an existing forum.
- $current_forum_category=get_forumcategory_information($current_forum['forum_category']);
- }
- } else {
- $result=get_forum_information($my_forum);
- if($result['forum_of_group']==0){
- $current_forum=get_forum_information($my_forum); // note: this has to be validated that it is an existing forum.
- $current_forum_category=get_forumcategory_information($current_forum['forum_category']);
- }
- }
- /*
- -----------------------------------------------------------
- Header and Breadcrumbs
- -----------------------------------------------------------
- */
- $my_search=isset($_GET['search'])?$_GET['search']:'';
- $my_action=isset($_GET['action'])?$_GET['action']:'';
- if (isset($_SESSION['gradebook'])){
- $gradebook= $_SESSION['gradebook'];
- }
- if (!empty($gradebook) && $gradebook=='view') {
- $interbreadcrumb[]= array (
- 'url' => '../gradebook/'.$_SESSION['gradebook_dest'],
- 'name' => get_lang('Gradebook')
- );
- }
- if (!empty($_GET['gidReq'])) {
- $toolgroup = Database::escape_string($_GET['gidReq']);
- api_session_register('toolgroup');
- }
- 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" => "index.php?search=".Security::remove_XSS($my_search),"name" => $nameTools);
- //$interbreadcrumb[]=array("url" => "viewforumcategory.php?forumcategory=".$current_forum_category['cat_id']."&search=".Security::remove_XSS(urlencode($my_search)),"name" => prepare4display($current_forum_category['cat_title']));
- $interbreadcrumb[]=array("url" => "#","name" => prepare4display($current_forum['forum_title']));
- //viewforum.php?forum=".Security::remove_XSS($my_forum)."&origin=".$origin."&gidReq=".$_SESSION['toolgroup']."&search=".Security::remove_XSS(urlencode($my_search)),
- } else {
- $interbreadcrumb[]=array("url" => "index.php?gradebook=$gradebook&search=".Security::remove_XSS($my_search),"name" => $nameTools);
- $interbreadcrumb[]=array("url" => "viewforumcategory.php?forumcategory=".$current_forum_category['cat_id']."&search=".Security::remove_XSS(urlencode($my_search)),"name" => prepare4display($current_forum_category['cat_title']));
- $interbreadcrumb[]=array("url" => "#","name" => prepare4display($current_forum['forum_title']));
- //viewforum.php?forum=".Security::remove_XSS($my_forum)."&origin=".$origin."&search=".Security::remove_XSS(urlencode($my_search))
- }
- if ($origin=='learnpath') {
- include(api_get_path(INCLUDE_PATH).'reduced_header.inc.php');
- } else {
- // the last element of the breadcrumb navigation is already set in interbreadcrumb, so give empty string
- Display :: display_header('');
- //api_display_tool_title($nameTools);
- }
- /*
- -----------------------------------------------------------
- Actions
- -----------------------------------------------------------
- */
- $table_link = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_LINK);
- // Change visibility of a forum or a forum category
- if (($my_action=='invisible' OR $my_action=='visible') AND isset($_GET['content']) AND isset($_GET['id']) AND api_is_allowed_to_edit(false,true)) {
- $message=change_visibility($_GET['content'], $_GET['id'],$_GET['action']);// note: this has to be cleaned first
- }
- // locking and unlocking
- if (($my_action=='lock' OR $my_action=='unlock') AND isset($_GET['content']) AND isset($_GET['id']) AND api_is_allowed_to_edit(false,true)) {
- $message=change_lock_status($_GET['content'], $_GET['id'],$my_action);// note: this has to be cleaned first
- }
- // deleting
- if ($my_action=='delete' AND isset($_GET['content']) AND isset($_GET['id']) AND api_is_allowed_to_edit(false,true)) {
- $message=delete_forum_forumcategory_thread($_GET['content'],$_GET['id']); // note: this has to be cleaned first
- //delete link
- $sql_link='DELETE FROM '.$table_link.' WHERE ref_id='.Database::escape_string(Security::remove_XSS($_GET['id'])).' and type=5 and course_code="'.api_get_course_id().'";';
- api_sql_query($sql_link);
- }
- // moving
- if ($my_action=='move' and isset($_GET['thread']) AND api_is_allowed_to_edit(false,true)) {
- $message=move_thread_form();
- }
- // notification
- if ($my_action == 'notify' AND isset($_GET['content']) AND isset($_GET['id'])) {
- $return_message = set_notification($_GET['content'],$_GET['id']);
- Display :: display_confirmation_message($return_message,false);
- }
- // student list
- if ($my_action == 'liststd' AND isset($_GET['content']) AND isset($_GET['id']) AND api_is_allowed_to_edit()) {
- switch($_GET['list']) {
- case "qualify":
- $student_list=get_thread_users_qualify($_GET['id']);
- $nrorow3 =-2;
- break;
- case "notqualify":
- $student_list=get_thread_users_not_qualify($_GET['id']);
- $nrorow3 =-2;
- break;
- default:
- $student_list=get_thread_users_details($_GET['id']);
- $nrorow3 = Database::num_rows($student_list);
- break;
- }
- $table_list = '<p><br /><h3>'.get_lang('ThreadUsersList').' :'.get_name_thread_by_id($_GET['id']).'</h3>';
- if ($nrorow3>0 || $nrorow3==-2) {
- $url = 'cidReq='.Security::remove_XSS($_GET['cidReq']).'&forum='.Security::remove_XSS($my_forum).'&action='.Security::remove_XSS($_GET['action']).'&content='.Security::remove_XSS($_GET['content']).'&id='.Security::remove_XSS($_GET['id']);
- $table_list.= '<br />
- <div style="width:50%">
- <table class="data_table" border="0">
- <tr>
- <th height="22"><a href="viewforum.php?'.$url.'&origin='.$origin.'&list=all">'.get_lang('AllStudents').'</a></th>
- <th><a href="viewforum.php?'.$url.'&origin='.$origin.'&list=qualify">'.get_lang('StudentsQualified').'</a></th>
- <th><a href="viewforum.php?'.$url.'&origin='.$origin.'&list=notqualify">'.get_lang('StudentsNotQualified').'</a></th>
- </tr>
- </table></div>
- <div style="border:1px solid gray; width:99%; margin-top:5px; padding:4px; float:left">
- ';
- $icon_qualify = 'blog_new.gif';
- $table_list.= '<center><br /><table class="data_table" style="width:50%">';
- // The column headers (to do: make this sortable)
- $table_list.= '<tr >';
- $table_list.= '<th height="24">'.get_lang('NamesAndLastNames').'</th>';
- if ($_GET['list']=='qualify') {
- $table_list.= '<th>'.get_lang('Qualification').'</th>';
- }
- if (api_is_allowed_to_edit()) {
- $table_list.= '<th>'.get_lang('Qualify').'</th>';
- }
- $table_list.= '</tr>';
- $max_qualify=show_qualify('2',$_GET['cidReq'],$my_forum,$userid,$_GET['id']);
- $counter_stdlist=0;
- if (Database::num_rows($student_list)>0) {
- while ($row_student_list=Database::fetch_array($student_list)) {
- if ($counter_stdlist%2==0) {
- $class_stdlist="row_odd";
- } else {
- $class_stdlist="row_even";
- }
- $name_user_theme = api_get_person_name($row_student_list['firstname'], $row_student_list['lastname']);
- $table_list.= '<tr class="$class_stdlist"><td><a href="../user/userInfo.php?uInfo='.$row_student_list['user_id'].'&tipo=sdtlist&'.api_get_cidreq().'&forum='.Security::remove_XSS($my_forum).$origin_string.'">'.$name_user_theme.'</a></td>';
- if ($_GET['list']=='qualify') {
- $table_list.= '<td>'.$row_student_list['qualify'].'/'.$max_qualify.'</td>';
- }
- if (api_is_allowed_to_edit()) {
- $current_qualify_thread=show_qualify('1',$_GET['cidReq'],$my_forum,$row_student_list['user_id'],$_GET['id']);
- $table_list.= '<td><a href="forumqualify.php?'.api_get_cidreq().'&forum='.Security::remove_XSS($my_forum).'&thread='.Security::remove_XSS($_GET['id']).'&user='.$row_student_list['user_id'].'&user_id='.$row_student_list['user_id'].'&idtextqualify='.$current_qualify_thread.'&origin='.$origin.'">'.icon('../img/'.$icon_qualify,get_lang('Qualify')).'</a></td></tr>';
- }
- $counter_stdlist++;
- }
- } else {
- if ($_GET['list']=='qualify'){
- $table_list.='<tr><td colspan="2">'.get_lang('ThereIsNotQualifiedLearners').'</td></tr>';
- } else {
- $table_list.='<tr><td colspan="2">'.get_lang('ThereIsNotUnqualifiedLearners').'</td></tr>';
- }
- }
- $table_list.= '</table></center>';
- $table_list .= '<br /></div>';
- } else {
- $table_list .= get_lang('NoParticipation');
- }
- }
- /*
- -----------------------------------------------------------
- Is the user allowed here?
- -----------------------------------------------------------
- */
- // if the user is not a course administrator and the forum is hidden
- // then the user is not allowed here.
- if (!api_is_allowed_to_edit(false,true) AND ($current_forum_category['visibility']==0 OR $current_forum['visibility']==0)) {
- forum_not_allowed_here();
- }
- if ($origin == 'learnpath') {
- echo '<div style="height:15px"> </div>';
- }
- /*
- -----------------------------------------------------------
- Display the action messages
- -----------------------------------------------------------
- */
- if (!empty($message)) {
- Display :: display_confirmation_message($message);
- }
- /*
- -----------------------------------------------------------
- Action Links
- -----------------------------------------------------------
- */
- if ($origin!='learnpath') {
- echo '<div class="actions">';
- if (empty($_SESSION['toolgroup'])){
- echo '<span style="float:right;">'.search_link().'</span>';
- }
- echo '<a href="index.php">'.Display::return_icon('back.png',get_lang('BackToForumOverview')).' '.get_lang('BackToForumOverview').'</a>';
- // The link should appear when
- // 1. the course admin is here
- // 2. the course member is here and new threads are allowed
- // 3. a visitor is here and new threads AND allowed AND anonymous posts are allowed
- if (api_is_allowed_to_edit(false,true) 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 $current_forum['locked'] <> 1) {
- if (!api_is_anonymous()) {
- if ($my_forum==strval(intval($my_forum))) {
- echo '<a href="newthread.php?'.api_get_cidreq().'&forum='.Security::remove_XSS($my_forum).$origin_string.'">'.Display::return_icon('forumthread_new.gif',get_lang('NewTopic')).' '.get_lang('NewTopic').'</a>';
- } else {
- $my_forum=strval(intval($my_forum));
- echo '<a href="newthread.php?'.api_get_cidreq().'&forum='.$my_forum.$origin_string.'">'.Display::return_icon('forumthread_new.gif',get_lang('NewTopic')).' '.get_lang('NewTopic').'</a>';
- }
- }
- } else {
- echo get_lang('ForumLocked');
- }
- }
- echo '</div>';
- }
- /*
- -----------------------------------------------------------
- Display
- -----------------------------------------------------------
- */
- echo "<table class=\"data_table\" >\n";
- // the current forum
- if ($origin != 'learnpath') {
- echo "\t<tr>\n\t\t<th align=\"left\" colspan=\"7\">";
- echo '<span class="forum_title">'.prepare4display($current_forum['forum_title']).'</span>';
- if (!empty ($current_forum['forum_comment'])) {
- echo '<br><span class="forum_description">'.prepare4display($current_forum['forum_comment']).'</span>';
- }
- if (!empty ($current_forum_category['cat_title'])) {
- echo '<br /><span class="forum_low_description">'.prepare4display($current_forum_category['cat_title'])."</span><br />";
- }
- echo "</th>\n";
- echo "\t</tr>\n";
- }
- echo "</th>\n";
- echo "\t</tr>\n";
- // The column headers (to do: make this sortable)
- echo "\t<tr class=\"forum_threadheader\">\n";
- echo "\t\t<td></td>\n";
- echo "\t\t<td>".get_lang('Title')."</td>\n";
- echo "\t\t<td>".get_lang('Replies')."</td>\n";
- echo "\t\t<td>".get_lang('Views')."</td>\n";
- echo "\t\t<td>".get_lang('Author')."</td>\n";
- echo "\t\t<td>".get_lang('LastPost')."</td>\n";
- echo "\t\t<td>".get_lang('Actions')."</td>\n";
- echo "\t</tr>\n";
- // getting al the threads
- $threads=get_threads($my_forum); // note: this has to be cleaned first
- $whatsnew_post_info=isset($_SESSION['whatsnew_post_info'])?$_SESSION['whatsnew_post_info']:null;
- $counter=0;
- if(is_array($threads)) {
- foreach ($threads as $row) {
- // thread who have no replies yet and the only post is invisible should not be displayed to students.
- if (api_is_allowed_to_edit(false,true) OR !($row['thread_replies']=='0' AND $row['visible']=='0')) {
- if($counter%2==0) {
- $class="row_odd";
- } else {
- $class="row_even";
- }
- echo "\t<tr class=\"$class\">\n";
- echo "\t\t<td>";
- $my_whatsnew_post_info=isset($whatsnew_post_info[$my_forum][$row['thread_id']])?$whatsnew_post_info[$my_forum][$row['thread_id']]:null;
- if (is_array($my_whatsnew_post_info) and !empty($my_whatsnew_post_info)) {
- echo icon('../img/forumthread.gif');
- } else {
- echo icon('../img/forumthread.gif');
- }
- if ($row['thread_sticky']==1) {
- echo icon('../img/exclamation.gif');
- }
- echo "</td>\n";
- echo "\t\t<td>";
- echo "<a href=\"viewthread.php?".api_get_cidreq()."&gradebook=".Security::remove_XSS($_GET['gradebook'])."&forum=".Security::remove_XSS($my_forum)."&origin=".$origin."&thread=".$row['thread_id'].$origin_string."&search=".Security::remove_XSS(urlencode($my_search))."\" ".class_visible_invisible($row['visibility']).">".prepare4display($row['thread_title'])."</a></td>\n";
- echo "\t\t<td>".$row['thread_replies']."</td>\n";
- if ($row['user_id']=='0') {
- $name=prepare4display($row['thread_poster_name']);
- } else {
- $name=api_get_person_name($row['firstname'], $row['lastname']);
- }
- echo "\t\t<td>".$row['thread_views']."</td>\n";
- if ($row['last_poster_user_id']=='0') {
- $name=$row['poster_name'];
- } else {
- $name=api_get_person_name($row['last_poster_firstname'], $row['last_poster_lastname']);
- }
- if($origin != 'learnpath') {
- echo "\t\t<td>".display_user_link($row['user_id'], api_get_person_name($row['firstname'], $row['lastname']))."</td>\n";
- } else {
- echo "\t\t<td>".api_get_person_name($row['firstname'], $row['lastname'])."</td>\n";
- }
- // if the last post is invisible and it is not the teacher who is looking then we have to find the last visible post of the thread
- if (($row['visible']=='1' OR api_is_allowed_to_edit(false,true)) && $origin!='learnpath') {
- $last_post=$row['thread_date']." ".get_lang('By').' '.display_user_link($row['last_poster_user_id'], $name);
- } elseif ($origin!='learnpath') {
- $last_post_sql="SELECT post.*, user.firstname, user.lastname FROM $table_posts post, $table_users user WHERE post.poster_id=user.user_id AND visible='1' AND thread_id='".$row['thread_id']."' ORDER BY post_id DESC";
- $last_post_result=api_sql_query($last_post_sql, __FILE__, __LINE__);
- $last_post_row=Database::fetch_array($last_post_result);
- $name=api_get_person_name($last_post_row['firstname'], $last_post_row['lastname']);
- $last_post=$last_post_row['post_date']." ".get_lang('By').' '.display_user_link($last_post_row['poster_id'], $name);
- } else {
- $last_post_sql="SELECT post.*, user.firstname, user.lastname FROM $table_posts post, $table_users user WHERE post.poster_id=user.user_id AND visible='1' AND thread_id='".$row['thread_id']."' ORDER BY post_id DESC";
- $last_post_result=api_sql_query($last_post_sql, __FILE__, __LINE__);
- $last_post_row=Database::fetch_array($last_post_result);
- $name=api_get_person_name($last_post_row['firstname'], $last_post_row['lastname']);
- $last_post=$last_post_row['post_date']." ".get_lang('By').' '.$name;
- }
- echo "\t\t<td>".$last_post."</td>\n";
- echo "\t\t<td>";
- // get attach id
- $attachment_list=get_attachment($row['post_id']);
- $id_attach = !empty($attachment_list)?$attachment_list['id']:'';
- $sql_post_id="SELECT post_id FROM $table_posts WHERE post_title='".$row['thread_title']."'";
- $result_post_id=api_sql_query($sql_post_id, __FILE__, __LINE__);
- $row_post_id=Database::fetch_array($result_post_id);
- if ($origin != 'learnpath') {
- if (api_is_allowed_to_edit(false,true) && !(api_is_course_coach() && $current_forum['session_id']!=$_SESSION['id_session'])) {
- echo "<a href=\"editpost.php?".api_get_cidreq()."&forum=".Security::remove_XSS($my_forum)."&thread=".Security::remove_XSS($row['thread_id'])."&post=".$row_post_id['post_id']."&gidReq=".$_SESSION['toolgroup']."&origin=".$origin."&id_attach=".$id_attach."\">".icon('../img/edit.gif',get_lang('Edit'))."</a>\n";
- echo "<a href=\"".api_get_self()."?".api_get_cidreq()."&forum=".Security::remove_XSS($my_forum)."&action=delete&content=thread&gidReq=".$_SESSION['toolgroup']."&id=".$row['thread_id'].$origin_string."\" onclick=\"javascript:if(!confirm('".addslashes(api_htmlentities(get_lang("DeleteCompleteThread"),ENT_QUOTES,$charset))."')) return false;\">".icon('../img/delete.gif',get_lang('Delete'))."</a>";
- display_visible_invisible_icon('thread', $row['thread_id'], $row['visibility'], array("forum"=>$my_forum,'origin'=>$origin,"gidReq"=>$_SESSION['toolgroup']));
- display_lock_unlock_icon('thread',$row['thread_id'], $row['locked'], array("forum"=>$my_forum,'origin'=>$origin,"gidReq"=>$_SESSION['toolgroup']));
- echo "<a href=\"viewforum.php?".api_get_cidreq()."&forum=".Security::remove_XSS($my_forum)."&action=move&gidReq=".$_SESSION['toolgroup']."&thread=".$row['thread_id'].$origin_string."\">".icon('../img/deplacer_fichier.gif',get_lang('MoveThread'))."</a>";
- }
- }
- $iconnotify = 'send_mail.gif';
- if (is_array(isset($_SESSION['forum_notification']['thread'])?$_SESSION['forum_notification']['thread']:null)) {
- if (in_array($row['thread_id'],$_SESSION['forum_notification']['thread'])) {
- $iconnotify = 'send_mail_checked.gif';
- }
- }
- $icon_liststd = 'group.gif';
- if (!api_is_anonymous()) {
- echo "<a href=\"".api_get_self()."?".api_get_cidreq()."&forum=".Security::remove_XSS($my_forum)."&origin=".$origin."&action=notify&content=thread&gidReq=".$_SESSION['toolgroup']."&id=".$row['thread_id']."\">".icon('../img/'.$iconnotify,get_lang('NotifyMe'))."</a>";
- }
- if (api_is_allowed_to_edit() && $origin != 'learnpath') {
- echo '<a href="'.api_get_self().'?'.api_get_cidreq().'&forum='.Security::remove_XSS($my_forum).'&origin='.$origin.'&action=liststd&content=thread&gidReq='.$_SESSION['toolgroup'].'&id='.$row['thread_id'].'">'.icon('../img/'.$icon_liststd,get_lang('StudentList')).'</a>';
- }
- echo "</td>\n";
- echo "\t</tr>\n";
- }
- $counter++;
- }
- }
- echo "</table>";
- echo isset($table_list)?$table_list:'';
- /*
- ==============================================================================
- FOOTER
- ==============================================================================
- */
- if ($origin != 'learnpath') {
- Display :: display_footer();
- }
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