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357 lines
13 KiB
357 lines
13 KiB
<?php
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/*
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==============================================================================
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Dokeos - elearning and course management software
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Copyright (c) 2006 Dokeos S.A.
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Copyright (c) 2006 Ghent University (UGent)
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For a full list of contributors, see "credits.txt".
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The full license can be read in "license.txt".
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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See the GNU General Public License for more details.
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Contact address: Dokeos, 44 rue des palais, B-1030 Brussels, Belgium
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Mail: info@dokeos.com
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==============================================================================
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*/
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/**
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* These files are a complete rework of the forum. The database structure is
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* based on phpBB but all the code is rewritten. A lot of new functionalities
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* are added:
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* - forum categories and forums can be sorted up or down, locked or made invisible
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* - consistent and integrated forum administration
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* - forum options: are students allowed to edit their post?
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* moderation of posts (approval)
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* reply only forums (students cannot create new threads)
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* multiple forums per group
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* - sticky messages
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* - new view option: nested view
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* - quoting a message
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*
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* @Author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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* @Copyright Ghent University
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* @Copyright Patrick Cool
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*
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* @package dokeos.forum
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*/
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/**
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**************************************************************************
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* IMPORTANT NOTICE
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* Please do not change anything is this code yet because there are still
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* some significant code that need to happen and I do not have the time to
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* merge files and test it all over again. So for the moment, please do not
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* touch the code
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* -- Patrick Cool <patrick.cool@UGent.be>
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**************************************************************************
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*/
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/*
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==============================================================================
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INIT SECTION
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==============================================================================
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*/
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/*
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-----------------------------------------------------------
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Language Initialisation
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-----------------------------------------------------------
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*/
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// name of the language file that needs to be included
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$language_file = 'forum';
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// including the global dokeos file
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require ('../inc/global.inc.php');
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// the section (tabs)
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$this_section=SECTION_COURSES;
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// including additional library scripts
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require_once (api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php');
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include_once (api_get_path(LIBRARY_PATH).'groupmanager.lib.php');
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$nameTools=get_lang('Forum');
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//are we in a lp ?
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$origin = '';
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if(isset($_GET['origin']))
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{
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$origin = $_GET['origin'];
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$origin_string = '&origin='.$origin;
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}
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/*
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-----------------------------------------------------------
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Including necessary files
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-----------------------------------------------------------
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*/
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include('forumconfig.inc.php');
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include('forumfunction.inc.php');
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/*
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==============================================================================
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MAIN DISPLAY SECTION
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==============================================================================
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*/
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/*
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-----------------------------------------------------------
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Retrieving forum and forum categorie information
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-----------------------------------------------------------
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*/
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// we are getting all the information about the current forum and forum category.
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// note pcool: I tried to use only one sql statement (and function) for this
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// but the problem is that the visibility of the forum AND forum cateogory are stored in the item_property table
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$current_forum=get_forum_information($_GET['forum']); // note: this has to be validated that it is an existing forum.
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$current_forum_category=get_forumcategory_information($current_forum['forum_category']);
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/*
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-----------------------------------------------------------
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Header and Breadcrumbs
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-----------------------------------------------------------
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*/
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$interbreadcrumb[]=array("url" => "index.php","name" => $nameTools);
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$interbreadcrumb[]=array("url" => "viewforumcategory.php?forumcategory=".$current_forum_category['cat_id'],"name" => prepare4display($current_forum_category['cat_title']));
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$interbreadcrumb[]=array("url" => "viewforum.php?forum=".$_GET['forum'],"name" => prepare4display($current_forum['forum_title']));
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if($origin=='learnpath')
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{
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include(api_get_path(INCLUDE_PATH).'reduced_header.inc.php');
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} else
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{
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Display :: display_header();
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api_display_tool_title($nameTools);
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}
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//echo '<link href="forumstyles.css" rel="stylesheet" type="text/css" />';
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/*
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-----------------------------------------------------------
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Actions
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-----------------------------------------------------------
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*/
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// Change visibility of a forum or a forum category
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if (($_GET['action']=='invisible' OR $_GET['action']=='visible') AND isset($_GET['content']) AND isset($_GET['id']) AND api_is_allowed_to_edit())
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{
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$message=change_visibility($_GET['content'], $_GET['id'],$_GET['action']);// note: this has to be cleaned first
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}
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if (($_GET['action']=='lock' OR $_GET['action']=='unlock') AND isset($_GET['content']) AND isset($_GET['id']) AND api_is_allowed_to_edit())
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{
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$message=change_lock_status($_GET['content'], $_GET['id'],$_GET['action']);// note: this has to be cleaned first
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}
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if ($_GET['action']=='delete' AND isset($_GET['content']) AND isset($_GET['id']) AND api_is_allowed_to_edit())
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{
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$message=delete_forum_forumcategory_thread($_GET['content'],$_GET['id']); // note: this has to be cleaned first
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}
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if ($_GET['action']=='move' and isset($_GET['thread']))
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{
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$message=move_thread_form();
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}
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/*
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-----------------------------------------------------------
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Is the user allowed here?
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-----------------------------------------------------------
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*/
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// if the user is not a course administrator and the forum is hidden
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// then the user is not allowed here.
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if (!api_is_allowed_to_edit() AND ($current_forum_category['visibility']==0 OR $current_forum['visibility']==0))
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{
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forum_not_allowed_here();
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}
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/*
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-----------------------------------------------------------
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Display the action messages
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-----------------------------------------------------------
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*/
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if (isset($message))
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{
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Display :: display_confirmation_message($message);
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}
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/*
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-----------------------------------------------------------
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Action Links
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-----------------------------------------------------------
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*/
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// The link should appear when
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// 1. the course admin is here
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// 2. the course member is here and new threads are allowed
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// 3. a visitor is here and new threads AND allowed AND anonymous posts are allowed
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if (api_is_allowed_to_edit() OR ($current_forum['allow_new_threads']==1 AND isset($_user['user_id'])) OR ($current_forum['allow_new_threads']==1 AND !isset($_user['user_id']) AND $current_forum['allow_anonymous']==1))
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{
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if ($current_forum['locked'] <> 1 AND $current_forum['locked'] <> 1)
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{
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echo '<a href="newthread.php?'.api_get_cidreq().'&forum='.$_GET['forum'].$origin_string.'">'.Display::return_icon('forumthread_new.gif').' '.get_lang('NewTopic').'</a>';
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}
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else
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{
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echo get_lang('ForumLocked');
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}
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}
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/*
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-----------------------------------------------------------
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Display
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-----------------------------------------------------------
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*/
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echo "<table class=\"data_table\" width='100%'>\n";
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// the forum category
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if($origin != 'learnpath')
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{
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echo "\t<tr>\n\t\t<th style=\"padding-left:5px;\" align=\"left\" colspan=\"7\">";
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echo '<a href="index.php?'.api_get_cidreq().'" '.class_visible_invisible($current_forum_category['visibility']).'>'.prepare4display($current_forum_category['cat_title']).'</a><br />';
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echo '<span>'.prepare4display($current_forum_category['cat_comment']).'</span>';
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echo "</th>\n";
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echo "\t</tr>\n";
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}
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// the forum
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echo "\t<tr class=\"forum_header\">\n";
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echo "\t\t<td colspan=\"7\">".prepare4display($current_forum['forum_title'])."<br />";
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echo '<span>'.prepare4display($current_forum['forum_comment']).'</span>';
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echo "</th>\n";
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echo "\t</tr>\n";
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// The column headers (to do: make this sortable)
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echo "\t<tr class=\"forum_threadheader\">\n";
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echo "\t\t<td></td>\n";
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echo "\t\t<td>".get_lang('Title')."</td>\n";
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echo "\t\t<td>".get_lang('Replies')."</td>\n";
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echo "\t\t<td>".get_lang('Author')."</td>\n";
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echo "\t\t<td>".get_lang('Views')."</td>\n";
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echo "\t\t<td>".get_lang('LastPost')."</td>\n";
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if (api_is_allowed_to_edit())
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{
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echo "\t\t<td>".get_lang('Actions')."</td>\n";
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}
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echo "\t</tr>\n";
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// getting al the threads
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$threads=get_threads($_GET['forum']); // note: this has to be cleaned first
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$whatsnew_post_info=$_SESSION['whatsnew_post_info'];
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$counter=0;
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foreach ($threads as $row)
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{
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// thread who have no replies yet and the only post is invisible should not be displayed to students.
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if (api_is_allowed_to_edit() OR !($row['thread_replies']=='0' AND $row['visible']=='0'))
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{
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if($counter%2==0)
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{
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$class="row_odd";
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}
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else
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{
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$class="row_even";
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}
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echo "\t<tr class=\"$class\">\n";
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echo "\t\t<td>";
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if (is_array($whatsnew_post_info[$_GET['forum']][$row['thread_id']]) and !empty($whatsnew_post_info[$_GET['forum']][$row['thread_id']]))
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{
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echo icon('../img/forumthread.gif');
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}
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else
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{
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echo icon('../img/forumthread.gif');
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}
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if ($row['thread_sticky']==1)
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{
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echo icon('../img/exclamation.gif');
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}
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echo "</td>\n";
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echo "\t\t<td><a href=\"viewthread.php?".api_get_cidreq()."&forum=".$_GET['forum']."&thread=".$row['thread_id'].$origin_string."\" ".class_visible_invisible($row['visibility']).">".prepare4display($row['thread_title'])."</a></td>\n";
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echo "\t\t<td>".$row['thread_replies']."</td>\n";
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if ($row['user_id']=='0')
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{
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$name=prepare4display($row['thread_poster_name']);
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}
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else
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{
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$name=$row['firstname'].' '.$row['lastname'];
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}
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if($origin != 'learnpath')
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{
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echo "\t\t<td>".display_user_link($row['user_id'], $name)."</td>\n";
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}
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else
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{
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echo "\t\t<td>".$name."</td>\n";
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}
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echo "\t\t<td>".$row['thread_views']."</td>\n";
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if ($row['last_poster_user_id']=='0')
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{
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$name=$row['poster_name'];
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}
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else
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{
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$name=$row['last_poster_firstname'].' '.$row['last_poster_lastname'];
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}
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// if the last post is invisible and it is not the teacher who is looking then we have to find the last visible post of the thread
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if (($row['visible']=='1' OR api_is_allowed_to_edit()) && $origin!='learnpath')
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{
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$last_post=$row['thread_date']." ".get_lang('By').' '.display_user_link($row['last_poster_user_id'], $name);
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}
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else if($origin!='learnpath')
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{
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$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";
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$last_post_result=api_sql_query($last_post_sql, __LINE__, __FILE__);
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$last_post_row=mysql_fetch_array($last_post_result);
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$name=$last_post_row['firstname'].' '.$last_post_row['lastname'];
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$last_post=$last_post_row['post_date']." ".get_lang('By').' '.display_user_link($last_post_row['poster_id'], $name);
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}
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else
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{
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$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";
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$last_post_result=api_sql_query($last_post_sql, __LINE__, __FILE__);
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$last_post_row=mysql_fetch_array($last_post_result);
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$name=$last_post_row['firstname'].' '.$last_post_row['lastname'];
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$last_post=$last_post_row['post_date']." ".get_lang('By').' '.$name;
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}
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echo "\t\t<td>".$last_post."</td>\n";
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if (api_is_allowed_to_edit())
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{
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echo "\t\t<td>";
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echo "<a href=\"".api_get_self()."?".api_get_cidreq()."&forum=".$_GET['forum']."&action=delete&content=thread&id=".$row['thread_id'].$origin_string."\" onclick=\"javascript:if(!confirm('".addslashes(htmlentities(get_lang("DeleteCompleteThread"),ENT_QUOTES,$charset))."')) return false;\">".icon('../img/delete.gif',get_lang('Delete'))."</a>";
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display_visible_invisible_icon('thread', $row['thread_id'], $row['visibility'], array("forum"=>$_GET['forum'],'origin'=>$origin));
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display_lock_unlock_icon('thread',$row['thread_id'], $row['locked'], array("forum"=>$_GET['forum'],'origin'=>$origin));
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echo "<a href=\"viewforum.php?".api_get_cidreq()."&forum=".$_GET['forum']."&action=move&thread=".$row['thread_id'].$origin_string."\">".icon('../img/deplacer_fichier.gif',get_lang('MoveThread'))."</a>";
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echo "</td>\n";
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}
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echo "\t</tr>\n";
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}
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$counter++;
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}
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echo "</table>";
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/*
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==============================================================================
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FOOTER
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==============================================================================
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*/
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if($origin != 'learnpath')
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{
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Display :: display_footer();
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}
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?>
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