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305 lines
11 KiB
305 lines
11 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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//require_once (api_get_path(LIBRARY_PATH).'resourcelinker.lib.php');
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$nameTools=get_lang('Forum');
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/*
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-----------------------------------------------------------
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Including necessary files
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-----------------------------------------------------------
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*/
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include('forumconfig.inc.php');
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include('forumfunction.inc.php');
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//are we in a lp ?
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$origin = '';
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if(isset($_GET['origin']))
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{
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$origin = Security::remove_XSS($_GET['origin']);
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}
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/*
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==============================================================================
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MAIN DISPLAY SECTION
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==============================================================================
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*/
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/*
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-----------------------------------------------------------
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Retrieving forum and forum categorie information
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-----------------------------------------------------------
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*/
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// we are getting all the information about the current forum and forum category.
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// note pcool: I tried to use only one sql statement (and function) for this
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// but the problem is that the visibility of the forum AND forum cateogory are stored in the item_property table
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$current_thread=get_thread_information($_GET['thread']); // note: this has to be validated that it is an existing thread
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$current_forum=get_forum_information($current_thread['forum_id']); // note: this has to be validated that it is an existing forum.
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$current_forum_category=get_forumcategory_information($current_forum['forum_category']);
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$whatsnew_post_info=$_SESSION['whatsnew_post_info'];
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/*
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-----------------------------------------------------------
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Header and Breadcrumbs
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-----------------------------------------------------------
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*/
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if($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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$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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$interbreadcrumb[]=array("url" => "viewforum.php?forum=".Security::remove_XSS($_GET['forum']),"name" => prepare4display($current_forum['forum_title']));
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if ($message<>'PostDeletedSpecial')
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{
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$interbreadcrumb[]=array("url" => "viewthread.php?forum=".Security::remove_XSS($_GET['forum'])."&thread=".Security::remove_XSS($_GET['thread']),"name" => prepare4display($current_thread['thread_title']));
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}
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// the last element of the breadcrumb navigation is already set in interbreadcrumb, so give empty string
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Display :: display_header('');
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api_display_tool_title($nameTools);
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}
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//echo '<link href="forumstyles.css" rel="stylesheet" type="text/css" />';
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/*
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-----------------------------------------------------------
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Is the user allowed here?
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-----------------------------------------------------------
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*/
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// if the user is not a course administrator and the forum is hidden
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// then the user is not allowed here.
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if (!api_is_allowed_to_edit() AND ($current_forum['visibility']==0 OR $current_thread['visibility']==0))
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{
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forum_not_allowed_here();
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}
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/*
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-----------------------------------------------------------
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Actions
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-----------------------------------------------------------
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*/
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if ($_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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$message=delete_post($_GET['id']); // note: this has to be cleaned first
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}
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if (($_GET['action']=='invisible' OR $_GET['action']=='visible') AND isset($_GET['id']) AND api_is_allowed_to_edit())
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{
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$message=approve_post($_GET['id'],$_GET['action']); // note: this has to be cleaned first
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}
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if ($_GET['action']=='move' and isset($_GET['post']))
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{
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$message=move_post_form();
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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($message))
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{
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Display :: display_confirmation_message(get_lang($message));
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}
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if ($message<>'PostDeletedSpecial') // in this case the first and only post of the thread is removed
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{
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// this increases the number of times the thread has been viewed
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increase_thread_view($_GET['thread']);
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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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echo '<div style="float:right;">';
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$my_url = '<a href="viewthread.php?'.api_get_cidreq().'&forum='.Security::remove_XSS($_GET['forum']).'&thread='.Security::remove_XSS($_GET['thread']);
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echo $my_url.'&view=flat&origin='.$origin.'">'.get_lang('FlatView').'</a> | ';
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echo $my_url.'&view=threaded&origin='.$origin.'">'.get_lang('ThreadedView').'</a> | ';
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echo $my_url.'&view=nested&origin='.$origin.'">'.get_lang('NestedView').'</a>';
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$my_url = null;
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echo '</div>';
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// the reply to thread link should only appear when the forum_category is not locked AND the forum is not locked AND the thread is not locked.
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// if one of the three levels is locked then the link should not be displayed
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if ($current_forum_category['locked']==0 AND $current_forum['locked']==0 AND $current_thread['locked']==0 OR api_is_allowed_to_edit())
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{
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// The link should only appear when the user is logged in or when anonymous posts are allowed.
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if ($_user['user_id'] OR ($current_forum['allow_anonymous']==1 AND !$_user['user_id']))
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{
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echo '<a href="reply.php?'.api_get_cidreq().'&forum='.Security::remove_XSS($_GET['forum']).'&thread='.Security::remove_XSS($_GET['thread']).'&action=replythread&origin='.$origin.'">'.get_lang('ReplyToThread').'</a>';
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}
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}
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// note: this is to prevent that some browsers display the links over the table (FF does it but Opera doesn't)
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echo ' ';
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/*
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-----------------------------------------------------------
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Display Forum Category and the Forum information
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-----------------------------------------------------------
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*/
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if (!$_SESSION['view'])
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{
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$viewmode=$current_forum['default_view'];
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}
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else
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{
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$viewmode=$_SESSION['view'];
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}
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$viewmode_whitelist=array('flat', 'threaded', 'nested');
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if (isset($_GET['view']) and in_array($_GET['view'],$viewmode_whitelist))
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{
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$viewmode=$_GET['view'];
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$_SESSION['view']=$viewmode;
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}
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if(empty($viewmode))
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{
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$viewmode = 'flat';
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}
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/*
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-----------------------------------------------------------
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Display Forum Category and the Forum 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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echo "<table class=\"data_table\" width='100%'>\n";
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// the forum category
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if($origin!='learnpath')
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{
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echo "\t<tr>\n\t\t<th style=\"padding-left:5px;\" align=\"left\" colspan=\"6\">";
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echo '<a href="index.php?'.api_get_cidreq().'" '.class_visible_invisible($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><a href=\"viewforum.php?".api_get_cidreq()."&forum=".$current_forum['forum_id']."\" ".class_visible_invisible($current_forum['visibility']).">".prepare4display($current_forum['forum_title'])."</a><br />";
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echo '<span>'.prepare4display($current_forum['forum_comment']).'</span>';
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echo "</td>\n";
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echo "\t</tr>\n";
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// the thread
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echo "\t<tr class=\"forum_thread\">\n";
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echo "\t\t<td><span ".class_visible_invisible($current_thread['visibility']).">".prepare4display($current_thread['thread_title'])."</span><br />";
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echo "</td>\n";
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echo "\t</tr>\n";
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echo "</table>";
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echo '<br />';
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switch ($viewmode)
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{
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case 'flat':
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include_once('viewthread_flat.inc.php');
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break;
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case 'threaded':
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include_once('viewthread_threaded.inc.php');
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break;
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case 'nested':
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include_once('viewthread_nested.inc.php');
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break;
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default:
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include_once('viewthread_flat.inc.php');
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break;
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}
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} // if ($message<>'PostDeletedSpecial') // in this case the first and only post of the thread is removed
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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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Display :: display_footer();
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?>
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