--- og_vocaborig.module	2008-06-17 16:06:14.000000000 +0100
+++ og_vocab.module	2008-08-02 14:40:32.000000000 +0100
@@ -352,4 +352,88 @@ function og_vocab_pathauto_taxonomy($op,
     default:
       break;
   }
-}
\ No newline at end of file
+}
+
+//Views (exposed filter) support for OG
+
+function og_vocab_views_tables() {
+
+  $tables['og_vocab'] = array(
+    'name' => 'og_vocab',
+    'join' => array(
+      'left' => array(
+        'table' => 'node',
+        'field' => 'nid'
+      ),
+      'right' => array(
+        'field' => 'nid'
+      ),
+    ),
+    'filters' => array(
+      'term' => array(
+        'name' => t('OG Vocab: Term'),
+        'operator' => 'views_handler_operator_andor',
+        'list' => 'og_vocab_handler_filter_tid',
+        'option' => 'string',
+        'handler' => 'views_handler_filter_tid_custom',
+        'value-type' => 'array',
+        'help' => t('Filter by terms in current group.'),
+      ),
+      
+    ),
+  );
+
+  return $tables;
+}
+
+function og_vocab_handler_filter_tid($op, $filterinfo) {
+
+  $tids = array();
+  if ($filterinfo['vocabulary']) {
+    $where = "td.vid = $filterinfo[vocabulary]";
+  }
+  $groupnode = og_get_group_context();
+  if($groupnode != NULL)
+  {
+        $where2 = "ogv.nid = %d";
+        
+  }
+  if($groupnode!=NULL && $filterinfo['vocabulary'] )
+ {
+      $where3="AND";
+  }
+
+  if($groupnode!=NULL || $filterinfo['vocabulary'] )
+ {
+      $where4="WHERE";
+  }
+ 
+  if($groupnode != NULL)
+  {
+ 
+   $sql ="SELECT DISTINCT(td.tid), td.name, td.weight FROM {term_data} td INNER JOIN {og_vocab} ogv ON td.vid = ogv.vid $where4 $where $where3 $where2 ORDER BY td.weight, td.name";
+
+      $result = db_query($sql, $groupnode->nid);
+  }
+  else
+  {
+
+      // In case we are not in a group node: for example if we are overriding the 'river of news' view and we want to expose this filter, we have to select a term
+
+         $sql ="SELECT DISTINCT(td.tid), td.name, td.weight FROM {term_data} td ORDER BY td.weight, td.name";
+      
+      $result = db_query($sql);
+  }
+  
+  while ($obj = db_fetch_object($result)) {
+      $tids[$obj->tid] = "$obj->name";
+   
+  }
+
+  return $tids;
+}
+
+
+
+
+?>
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