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- <?php
- /*
- ==============================================================================
- Dokeos - elearning and course management software
- Copyright (c) 2006 Dokeos S.A.
- Copyright (c) 2006 Ghent University (UGent)
- 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, 44 rue des palais, 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
- */
- /**
- **************************************************************************
- * IMPORTANT NOTICE
- * Please do not change anything is this code yet because there are still
- * some significant code that need to happen and I do not have the time to
- * merge files and test it all over again. So for the moment, please do not
- * touch the code
- * -- Patrick Cool <patrick.cool@UGent.be>
- **************************************************************************
- */
- $rows=get_posts($_GET['thread']); // note: this has to be cleaned first
- $rows=calculate_children($rows);
- if ($_GET['post'])
- {
- $display_post_id=$_GET['post']; // note: this has to be cleaned first
- }
- else
- {
- // we need to display the first post
- reset($rows);
- $current=current($rows);
- $display_post_id=$current['post_id'];
- }
- // the style depends on the status of the message: approved or not
- if ($rows[$display_post_id]['visible']=='0')
- {
- $titleclass='forum_message_post_title_2_be_approved';
- $messageclass='forum_message_post_text_2_be_approved';
- $leftclass='forum_message_left_2_be_approved';
- }
- else
- {
- $titleclass='forum_message_post_title';
- $messageclass='forum_message_post_text';
- $leftclass='forum_message_left';
- }
- // --------------------------------------
- // Displaying the message
- // --------------------------------------
- // we mark the image we are displaying as set
- unset($whatsnew_post_info[$current_forum['forum_id']][$current_thread['thread_id']][$rows[$display_post_id]['post_id']]);
- echo "<table width=\"100%\" class=\"post\" cellspacing=\"5\" border=\"0\">\n";
- echo "\t<tr>\n";
- echo "\t\t<td rowspan=\"3\" class=\"$leftclass\">";
- if ($rows[$display_post_id]['user_id']=='0')
- {
- $name=prepare4display($rows[$display_post_id]['poster_name']);
- }
- else
- {
- $name=$rows[$display_post_id]['firstname'].' '.$rows[$display_post_id]['lastname'];
- }
- echo display_user_link($rows[$display_post_id]['user_id'], $name).'<br />';
- echo $rows[$display_post_id]['post_date'].'<br /><br />';
- // The user who posted it can edit his thread only if the course admin allowed this in the properties of the forum
- // The course admin him/herself can do this off course always
- if (($current_forum['allow_edit']==1 AND $rows[$display_post_id]['user_id']==$_uid) or api_is_allowed_to_edit())
- {
- echo "<a href=\"editpost.php?forum=".$_GET['forum']."&thread=".$_GET['thread']."&post=".$rows[$display_post_id]['post_id']."\">".icon('../img/edit.gif',get_lang('Edit'))."</a>\n";
- }
- if (api_is_allowed_to_edit())
- {
- echo "<a href=\"".$_SERVER['PHP_SELF']."?forum=".$_GET['forum']."&thread=".$_GET['thread']."&action=delete&content=post&id=".$rows[$display_post_id]['post_id']."\" onclick=\"javascript:if(!confirm('".addslashes(htmlentities(get_lang("DeletePost")))."')) return false;\">".icon('../img/delete.gif',get_lang('Delete'))."</a>\n";
- display_visible_invisible_icon('post', $rows[$display_post_id]['post_id'], $rows[$display_post_id]['visible'],array('forum'=>$_GET['forum'],'thread'=>$_GET['thread'], 'post'=>$_GET['post'] ));
- echo "\n";
- echo "<a href=\"viewthread.php?forum=".$_GET['forum']."&thread=".$_GET['thread']."&action=move&post=".$rows[$display_post_id]['post_id']."\">".icon('../img/forummovepost.gif',get_lang('Edit'))."</a>\n";
- }
- echo '<br /><br />';
- //if (($current_forum_category['locked']==0 AND $current_forum['locked']==0 AND $current_thread['locked']==0) OR api_is_allowed_to_edit())
- if ($current_forum_category['locked']==0 AND $current_forum['locked']==0 AND $current_thread['locked']==0 OR api_is_allowed_to_edit())
- {
- if ($_uid OR ($current_forum['allow_anonymous']==1 AND !$_uid))
- {
- echo '<a href="reply.php?forum='.$_GET['forum'].'&thread='.$_GET['thread'].'&post='.$rows[$display_post_id]['post_id'].'&action=replymessage">'.get_lang('ReplyToMessage').'</a><br />';
- echo '<a href="reply.php?forum='.$_GET['forum'].'&thread='.$_GET['thread'].'&post='.$rows[$display_post_id]['post_id'].'&action=quote">'.get_lang('QuoteMessage').'</a><br /><br />';
- }
- }
- else
- {
- if ($current_forum_category['locked']==1)
- {
- echo get_lang('ForumcategoryLocked').'<br />';
- }
- if ($current_forum['locked']==1)
- {
- echo get_lang('ForumLocked').'<br />';
- }
- if ($current_thread['locked']==1)
- {
- echo get_lang('ThreadLocked').'<br />';
- }
- }
- echo "</td>\n";
- // note: this can be removed here because it will be displayed in the tree
- if (isset($whatsnew_post_info[$current_forum['forum_id']][$current_thread['thread_id']][$rows[$display_post_id]['post_id']]) and !empty($whatsnew_post_info[$current_forum['forum_id']][$current_thread['thread_id']][$rows[$display_post_id]['post_id']]) and !empty($whatsnew_post_info[$_GET['forum']][$rows[$display_post_id]['thread_id']]))
- {
- $post_image=icon('../img/forumpostnew.gif');
- }
- else
- {
- $post_image=icon('../img/forumpost.gif');
- }
- if ($rows[$display_post_id]['post_notification']=='1' AND $rows[$display_post_id]['poster_id']==$_uid)
- {
- $post_image.=icon('../img/forumnotification.gif',get_lang('YouWillBeNotified'));
- }
- // The post title
- echo "\t\t<td class=\"$titleclass\">".$post_image." ".prepare4display($rows[$display_post_id]['post_title'])."</td>\n";
- echo "\t</tr>\n";
- // The post message
- echo "\t<tr>\n";
- echo "\t\t<td class=\"$messageclass\">".prepare4display($rows[$display_post_id]['post_text'])."</td>\n";
- echo "\t</tr>\n";
- /*
- // The added resources
- echo "<tr><td>";
- if (check_added_resources("forum_post", $rows[$display_post_id]["post_id"]))
- {
-
- echo "<i>".get_lang("AddedResources")."</i><br/>";
- if ($rows[$display_post_id]['visible']=='0')
- {
- $addedresource_style="invisible";
- }
- display_added_resources("forum_post", $rows[$display_post_id]["post_id"], $addedresource_style);
- }
- echo "</td></tr>";
- */
- // The post has been displayed => it can be removed from the what's new array
- unset($whatsnew_post_info[$current_forum['forum_id']][$current_thread['thread_id']][$row['post_id']]);
- unset($_SESSION['whatsnew_post_info'][$current_forum['forum_id']][$current_thread['thread_id']][$row['post_id']]);
- echo "</table>";
- // --------------------------------------
- // Displaying the thread (structure)
- // --------------------------------------
- echo "<div class=\"structure\">".get_lang('Structure')."</div>";
- $counter=0;
- foreach ($rows as $post)
- {
- $counter++;
- $indent=$post['indent_cnt']*'20';
- echo "<div style=\"margin-left: ".$indent."px;\">";
- if (isset($whatsnew_post_info[$current_forum['forum_id']][$current_thread['thread_id']][$post['post_id']]) and !empty($whatsnew_post_info[$current_forum['forum_id']][$current_thread['thread_id']][$post['post_id']]) and !empty($whatsnew_post_info[$_GET['forum']][$post['thread_id']]))
- {
- $post_image=icon('../img/forumpostnew.gif');
- }
- else
- {
- $post_image=icon('../img/forumpost.gif');
- }
- echo $post_image;
- if ($_GET['post']==$post['post_id'] OR ($counter==1 AND !isset($_GET['post'])))
- {
- echo '<strong>'.prepare4display($post['post_title']).'</strong></div>';
- }
- else
- {
- if ($post['visible']=='0')
- {
- $class=' class="invisible"';
- }
- else
- {
- $class='';
- }
- echo "<a href=\"viewthread.php?forum=".$_GET['forum']."&thread=".$_GET['thread']."&post=".$post['post_id']."\" $class>".prepare4display($post['post_title'])."</a></div>\n";
- }
- }
- /**
- * This function builds an array of all the posts in a given thread where the key of the array is the post_id
- * It also adds an element children to the array which itself is an array that contains all the id's of the first-level children
- * @return an array containing all the information on the posts of a thread
- * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
- */
- function calculate_children($rows)
- {
- foreach($rows as $row)
- {
- $rows_with_children[$row["post_id"]]=$row;
- $rows_with_children[$row["post_parent_id"]]["children"][]=$row["post_id"];
- }
- $rows=$rows_with_children;
- $sorted_rows=array(0=>array());
- _phorum_recursive_sort($rows, $sorted_rows);
- unset($sorted_rows[0]);
- return $sorted_rows;
- }
- function _phorum_recursive_sort($rows, &$threads, $seed=0, $indent=0)
- {
- if($seed>0)
- {
- $threads[$rows[$seed]["post_id"]]=$rows[$seed];
- $threads[$rows[$seed]["post_id"]]["indent_cnt"]=$indent;
- $indent++;
- }
- if(isset($rows[$seed]["children"]))
- {
- foreach($rows[$seed]["children"] as $child)
- {
- _phorum_recursive_sort($rows, $threads, $child, $indent);
- }
- }
- }
- ?>
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