viewthread_threaded.inc.php 9.9 KB

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  1. <?php
  2. /*
  3. ==============================================================================
  4. Dokeos - elearning and course management software
  5. Copyright (c) 2006 Dokeos S.A.
  6. Copyright (c) 2006 Ghent University (UGent)
  7. For a full list of contributors, see "credits.txt".
  8. The full license can be read in "license.txt".
  9. This program is free software; you can redistribute it and/or
  10. modify it under the terms of the GNU General Public License
  11. as published by the Free Software Foundation; either version 2
  12. of the License, or (at your option) any later version.
  13. See the GNU General Public License for more details.
  14. Contact address: Dokeos, 44 rue des palais, B-1030 Brussels, Belgium
  15. Mail: info@dokeos.com
  16. ==============================================================================
  17. */
  18. /**
  19. * These files are a complete rework of the forum. The database structure is
  20. * based on phpBB but all the code is rewritten. A lot of new functionalities
  21. * are added:
  22. * - forum categories and forums can be sorted up or down, locked or made invisible
  23. * - consistent and integrated forum administration
  24. * - forum options: are students allowed to edit their post?
  25. * moderation of posts (approval)
  26. * reply only forums (students cannot create new threads)
  27. * multiple forums per group
  28. * - sticky messages
  29. * - new view option: nested view
  30. * - quoting a message
  31. *
  32. * @Author Patrick Cool <patrick.cool@UGent.be>, Ghent University
  33. * @Copyright Ghent University
  34. * @Copyright Patrick Cool
  35. *
  36. * @package dokeos.forum
  37. */
  38. /**
  39. **************************************************************************
  40. * IMPORTANT NOTICE
  41. * Please do not change anything is this code yet because there are still
  42. * some significant code that need to happen and I do not have the time to
  43. * merge files and test it all over again. So for the moment, please do not
  44. * touch the code
  45. * -- Patrick Cool <patrick.cool@UGent.be>
  46. **************************************************************************
  47. */
  48. $rows=get_posts($_GET['thread']); // note: this has to be cleaned first
  49. $rows=calculate_children($rows);
  50. if ($_GET['post'])
  51. {
  52. $display_post_id=$_GET['post']; // note: this has to be cleaned first
  53. }
  54. else
  55. {
  56. // we need to display the first post
  57. reset($rows);
  58. $current=current($rows);
  59. $display_post_id=$current['post_id'];
  60. }
  61. // the style depends on the status of the message: approved or not
  62. if ($rows[$display_post_id]['visible']=='0')
  63. {
  64. $titleclass='forum_message_post_title_2_be_approved';
  65. $messageclass='forum_message_post_text_2_be_approved';
  66. $leftclass='forum_message_left_2_be_approved';
  67. }
  68. else
  69. {
  70. $titleclass='forum_message_post_title';
  71. $messageclass='forum_message_post_text';
  72. $leftclass='forum_message_left';
  73. }
  74. // --------------------------------------
  75. // Displaying the message
  76. // --------------------------------------
  77. // we mark the image we are displaying as set
  78. unset($whatsnew_post_info[$current_forum['forum_id']][$current_thread['thread_id']][$rows[$display_post_id]['post_id']]);
  79. echo "<table width=\"100%\" class=\"post\" cellspacing=\"5\" border=\"0\">\n";
  80. echo "\t<tr>\n";
  81. echo "\t\t<td rowspan=\"3\" class=\"$leftclass\">";
  82. if ($rows[$display_post_id]['user_id']=='0')
  83. {
  84. $name=prepare4display($rows[$display_post_id]['poster_name']);
  85. }
  86. else
  87. {
  88. $name=$rows[$display_post_id]['firstname'].' '.$rows[$display_post_id]['lastname'];
  89. }
  90. echo display_user_link($rows[$display_post_id]['user_id'], $name).'<br />';
  91. echo $rows[$display_post_id]['post_date'].'<br /><br />';
  92. // The user who posted it can edit his thread only if the course admin allowed this in the properties of the forum
  93. // The course admin him/herself can do this off course always
  94. if (($current_forum['allow_edit']==1 AND $rows[$display_post_id]['user_id']==$_uid) or api_is_allowed_to_edit())
  95. {
  96. echo "<a href=\"editpost.php?forum=".$_GET['forum']."&amp;thread=".$_GET['thread']."&amp;post=".$rows[$display_post_id]['post_id']."\">".icon('../img/edit.gif',get_lang('Edit'))."</a>\n";
  97. }
  98. if (api_is_allowed_to_edit())
  99. {
  100. echo "<a href=\"".$_SERVER['PHP_SELF']."?forum=".$_GET['forum']."&amp;thread=".$_GET['thread']."&amp;action=delete&amp;content=post&amp;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";
  101. display_visible_invisible_icon('post', $rows[$display_post_id]['post_id'], $rows[$display_post_id]['visible'],array('forum'=>$_GET['forum'],'thread'=>$_GET['thread'], 'post'=>$_GET['post'] ));
  102. echo "\n";
  103. echo "<a href=\"viewthread.php?forum=".$_GET['forum']."&amp;thread=".$_GET['thread']."&amp;action=move&amp;post=".$rows[$display_post_id]['post_id']."\">".icon('../img/forummovepost.gif',get_lang('Edit'))."</a>\n";
  104. }
  105. echo '<br /><br />';
  106. //if (($current_forum_category['locked']==0 AND $current_forum['locked']==0 AND $current_thread['locked']==0) OR api_is_allowed_to_edit())
  107. if ($current_forum_category['locked']==0 AND $current_forum['locked']==0 AND $current_thread['locked']==0 OR api_is_allowed_to_edit())
  108. {
  109. if ($_uid OR ($current_forum['allow_anonymous']==1 AND !$_uid))
  110. {
  111. echo '<a href="reply.php?forum='.$_GET['forum'].'&amp;thread='.$_GET['thread'].'&amp;post='.$rows[$display_post_id]['post_id'].'&amp;action=replymessage">'.get_lang('ReplyToMessage').'</a><br />';
  112. echo '<a href="reply.php?forum='.$_GET['forum'].'&amp;thread='.$_GET['thread'].'&amp;post='.$rows[$display_post_id]['post_id'].'&amp;action=quote">'.get_lang('QuoteMessage').'</a><br /><br />';
  113. }
  114. }
  115. else
  116. {
  117. if ($current_forum_category['locked']==1)
  118. {
  119. echo get_lang('ForumcategoryLocked').'<br />';
  120. }
  121. if ($current_forum['locked']==1)
  122. {
  123. echo get_lang('ForumLocked').'<br />';
  124. }
  125. if ($current_thread['locked']==1)
  126. {
  127. echo get_lang('ThreadLocked').'<br />';
  128. }
  129. }
  130. echo "</td>\n";
  131. // note: this can be removed here because it will be displayed in the tree
  132. if (isset($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']]))
  133. {
  134. $post_image=icon('../img/forumpostnew.gif');
  135. }
  136. else
  137. {
  138. $post_image=icon('../img/forumpost.gif');
  139. }
  140. if ($rows[$display_post_id]['post_notification']=='1' AND $rows[$display_post_id]['poster_id']==$_uid)
  141. {
  142. $post_image.=icon('../img/forumnotification.gif',get_lang('YouWillBeNotified'));
  143. }
  144. // The post title
  145. echo "\t\t<td class=\"$titleclass\">".$post_image." ".prepare4display($rows[$display_post_id]['post_title'])."</td>\n";
  146. echo "\t</tr>\n";
  147. // The post message
  148. echo "\t<tr>\n";
  149. echo "\t\t<td class=\"$messageclass\">".prepare4display($rows[$display_post_id]['post_text'])."</td>\n";
  150. echo "\t</tr>\n";
  151. /*
  152. // The added resources
  153. echo "<tr><td>";
  154. if (check_added_resources("forum_post", $rows[$display_post_id]["post_id"]))
  155. {
  156. echo "<i>".get_lang("AddedResources")."</i><br/>";
  157. if ($rows[$display_post_id]['visible']=='0')
  158. {
  159. $addedresource_style="invisible";
  160. }
  161. display_added_resources("forum_post", $rows[$display_post_id]["post_id"], $addedresource_style);
  162. }
  163. echo "</td></tr>";
  164. */
  165. // The post has been displayed => it can be removed from the what's new array
  166. unset($whatsnew_post_info[$current_forum['forum_id']][$current_thread['thread_id']][$row['post_id']]);
  167. unset($_SESSION['whatsnew_post_info'][$current_forum['forum_id']][$current_thread['thread_id']][$row['post_id']]);
  168. echo "</table>";
  169. // --------------------------------------
  170. // Displaying the thread (structure)
  171. // --------------------------------------
  172. echo "<div class=\"structure\">".get_lang('Structure')."</div>";
  173. $counter=0;
  174. foreach ($rows as $post)
  175. {
  176. $counter++;
  177. $indent=$post['indent_cnt']*'20';
  178. echo "<div style=\"margin-left: ".$indent."px;\">";
  179. if (isset($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']]))
  180. {
  181. $post_image=icon('../img/forumpostnew.gif');
  182. }
  183. else
  184. {
  185. $post_image=icon('../img/forumpost.gif');
  186. }
  187. echo $post_image;
  188. if ($_GET['post']==$post['post_id'] OR ($counter==1 AND !isset($_GET['post'])))
  189. {
  190. echo '<strong>'.prepare4display($post['post_title']).'</strong></div>';
  191. }
  192. else
  193. {
  194. if ($post['visible']=='0')
  195. {
  196. $class=' class="invisible"';
  197. }
  198. else
  199. {
  200. $class='';
  201. }
  202. echo "<a href=\"viewthread.php?forum=".$_GET['forum']."&amp;thread=".$_GET['thread']."&amp;post=".$post['post_id']."\" $class>".prepare4display($post['post_title'])."</a></div>\n";
  203. }
  204. }
  205. /**
  206. * This function builds an array of all the posts in a given thread where the key of the array is the post_id
  207. * 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
  208. * @return an array containing all the information on the posts of a thread
  209. * @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
  210. */
  211. function calculate_children($rows)
  212. {
  213. foreach($rows as $row)
  214. {
  215. $rows_with_children[$row["post_id"]]=$row;
  216. $rows_with_children[$row["post_parent_id"]]["children"][]=$row["post_id"];
  217. }
  218. $rows=$rows_with_children;
  219. $sorted_rows=array(0=>array());
  220. _phorum_recursive_sort($rows, $sorted_rows);
  221. unset($sorted_rows[0]);
  222. return $sorted_rows;
  223. }
  224. function _phorum_recursive_sort($rows, &$threads, $seed=0, $indent=0)
  225. {
  226. if($seed>0)
  227. {
  228. $threads[$rows[$seed]["post_id"]]=$rows[$seed];
  229. $threads[$rows[$seed]["post_id"]]["indent_cnt"]=$indent;
  230. $indent++;
  231. }
  232. if(isset($rows[$seed]["children"]))
  233. {
  234. foreach($rows[$seed]["children"] as $child)
  235. {
  236. _phorum_recursive_sort($rows, $threads, $child, $indent);
  237. }
  238. }
  239. }
  240. ?>