Index: karma.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/karma/karma.module,v
retrieving revision 1.35
diff -u -F^f -r1.35 karma.module
--- karma.module	25 Aug 2006 01:06:35 -0000	1.35
+++ karma.module	12 Sep 2006 00:43:37 -0000
@@ -97,6 +97,13 @@ function karma_get_user_rating($type, $o
   $id = ($type == 'comment' ? $object->cid : $object->nid);
 
   if (!isset($ratings[$type][$object->nid])) {
+    $cache = cache_get('karma:'. $user->uid .':'. $type .':'. $object->nid);
+    if (is_object($cache)) {
+      $ratings[$type][$object->nid] = unserialize($cache->data);
+    }
+  }
+
+  if (!isset($ratings[$type][$object->nid])) {
     $ratings[$type][$object->nid] = array();
     switch ($type) {
       case 'comment':
@@ -110,6 +117,7 @@ function karma_get_user_rating($type, $o
     while ($rating = db_fetch_object($result)) {
       $ratings[$type][$object->nid][$rating->id] = $rating->rating;
     }
+    cache_set('karma:'. $user->uid .':'. $type .':'. $object->nid, serialize($ratings[$type][$object->nid]));
   }
 
   return $ratings[$type][$object->nid][$id];
@@ -141,6 +149,13 @@ function karma_get_rating($type, $object
     );
   }
 
+  if (!isset($ratings[$type][$object->nid]) && !$clear) {
+    $cache = cache_get('karma:'. $type .':'. $object->nid);
+    if (is_object($cache)) {
+      $ratings[$type][$object->nid] = unserialize($cache->data);
+    }
+  }
+
   if (!isset($ratings[$type][$object->nid])) {
     $ratings[$type][$object->nid] = array();
     switch ($type) {
@@ -155,6 +170,7 @@ function karma_get_rating($type, $object
     while ($rating = db_fetch_object($result)) {
       $ratings[$type][$object->nid][$type == 'comment' ? $rating->id : 'node'] = array($rating->rating, $rating->count);
     }
+    cache_set('karma:'. $type .':'. $object->nid, serialize($ratings[$type][$object->nid]));
   }
 
   return $ratings[$type][$object->nid][$type == 'comment' ? $object->cid : 'node'];
@@ -254,10 +270,12 @@ function karma_rate_submit($form_id, $fo
   switch ($form_values['type']) {
     case 'comment':
       $id_type = 'cid';
+      $object = db_fetch_object(db_query('SELECT uid, nid FROM {comments} WHERE cid = %d', $form_values['id']));
       break;
 
     case 'node':
       $id_type = 'nid';
+      $object = db_fetch_object(db_query('SELECT uid, nid FROM {node} WHERE nid = %d', $form_values['id']));
       break;
   }
 
@@ -272,16 +290,11 @@ function karma_rate_submit($form_id, $fo
   db_query("DELETE FROM {karma_objects} WHERE id = %d AND type = '%s'", $form_values['id'], $id_type);
   db_query("INSERT INTO {karma_objects} (id, type, rating, count) SELECT id, '%s', avg(rating), count(uid) FROM {karma_ratings} WHERE id = %d AND type = '%s' GROUP BY id", $id_type, $form_values['id'], $id_type);
 
-  // Update the comment owner's karma
-  switch ($form_values['type']) {
-    case 'comment':
-      $object = db_fetch_object(db_query('SELECT uid FROM {comments} WHERE cid = %d', $form_values['id']));
-      break;
+  // Clear the cache.
+  cache_clear_all('karma:'. $user->uid .':'. $form_values['type'] .':'. $object->nid);
+  cache_clear_all('karma:'. $form_values['type'] .':'. $object->nid);
 
-    case 'node':
-      $object = db_fetch_object(db_query('SELECT uid FROM {node} WHERE nid = %d', $form_values['id']));
-      break;
-  }
+  // Update the comment owner's karma
   karma_update_user_karma($object->uid);
 
   // todo ??