Group nav for edit/delete forum topic pages

htdocs/interaction/forum/deletetopic.php

@@ -25,7 +25,7 @@
  */
 
 define('INTERNAL', 1);
-define('MENUITEM', 'groups');
+define('MENUITEM', 'groups/forums');
 require(dirname(dirname(dirname(__FILE__))) . '/init.php');
 safe_require('interaction' ,'forum');
 require('group.php');
@@ -59,6 +59,8 @@ if (!$topic) {
     throw new NotFoundException(get_string('cantfindtopic', 'interaction.forum', $topicid));
 }
 
+define('GROUP', $topic->group);
+
 $membership = user_can_access_forum((int)$topic->forumid);
 
 $moderator = (bool)($membership & INTERACTION_FORUM_MOD);

htdocs/interaction/forum/edittopic.php

@@ -69,6 +69,7 @@ if (!$forum) {
     throw new NotFoundException(get_string('cantfindforum', 'interaction.forum', $forumid));
 }
 
+define('GROUP', $forum->groupid);
 $membership = user_can_access_forum((int)$forumid);
 $moderator = (bool)($membership & INTERACTION_FORUM_MOD);