From 789cba51f54fbfad21c33b3e2c9cbcbc10c46ff2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?G=C3=A1bor=20Hojtsy?= <gabor@hojtsy.hu>
Date: Thu, 20 Dec 2007 21:43:01 +0000
Subject: #186546 by bjaspan: fix missing forum vocabulary when people turned
 on forum module, but never visited any pages in Drupal 5 and they upgrade to
 Drupal 6 which does this much better

---
 modules/forum/forum.install | 30 ++++++++++++++++++++++++++++++
 modules/forum/forum.module  |  7 +++++++
 2 files changed, 37 insertions(+)

(limited to 'modules/forum')

diff --git a/modules/forum/forum.install b/modules/forum/forum.install
index 76b66a267..7d2d0c428 100644
--- a/modules/forum/forum.install
+++ b/modules/forum/forum.install
@@ -91,3 +91,33 @@ function forum_schema() {
 
   return $schema;
 }
+
+/**
+ * Create the forum vocabulary if does not exist. Assign the
+ * vocabulary a low weight so it will appear first in forum topic
+ * create and edit forms.  Do not just call forum_enable() because in
+ * future versions it might do something different.
+ */
+function forum_update_6000() {
+  $ret = array();
+
+  $vid = variable_get('forum_nav_vocabulary', 0);
+  $vocabularies = taxonomy_get_vocabularies();
+  if (!isset($vocabularies[$vid])) {
+    $vocabulary = array(
+      'name' => t('Forums'),
+      'multiple' => 0,
+      'required' => 0,
+      'hierarchy' => 1,
+      'relations' => 0,
+      'module' => 'forum',
+      'weight' => -10,
+      'nodes' => array('forum' => 1),
+    );
+    taxonomy_save_vocabulary($vocabulary);
+
+    variable_set('forum_nav_vocabulary', $vocabulary['vid']);
+  }
+
+  return $ret;
+}
\ No newline at end of file
diff --git a/modules/forum/forum.module b/modules/forum/forum.module
index 674077dea..3546b4f66 100644
--- a/modules/forum/forum.module
+++ b/modules/forum/forum.module
@@ -161,8 +161,15 @@ function forum_init() {
  * Implementation of hook_nodeapi().
  */
 function forum_nodeapi(&$node, $op, $teaser, $page) {
+  // We are going to return if $node->type is not one of the node
+  // types assigned to the forum vocabulary.  If forum_nav_vocabulary
+  // is undefined or the vocabulary does not exist, it clearly cannot
+  // be assigned to $node->type, so return to avoid E_ALL warnings.
   $vid = variable_get('forum_nav_vocabulary', '');
   $vocabulary = taxonomy_vocabulary_load($vid);
+  if (empty($vocabulary)) {
+    return;
+  }
 
   // Operate only on node types assigned for the forum vocabulary.
   if (!in_array($node->type, $vocabulary->nodes)) {
-- 
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