Preliminary work to cut over to Kohana 2.4

- Kohana::log() -> Kohana_Log::add()
- Kohana::config_XXX -> Kohana_Config::instance()->XXX
- Implement View::set_global in MY_View
- Updated Cache_Database_Driver to latest APIs
- ORM::$loaded -> ORM::loaded()
- Updated item::viewable() to use K2.4 parenthesization

63 files changed, 257 insertions, 225 deletions

diff --git a/modules/akismet/helpers/akismet.php b/modules/akismet/helpers/akismet.php
index 43549ffa..46a305b2 100644
--- a/modules/akismet/helpers/akismet.php
+++ b/modules/akismet/helpers/akismet.php
@@ -166,7 +166,7 @@ class akismet_Core {
     }
     $response = "";
 
-    Kohana::log("debug", "Send request\n" . print_r($http_request, 1));
+    Kohana_Log::add("debug", "Send request\n" . print_r($http_request, 1));
     if (false !== ($fs = @fsockopen($host, 80, $errno, $errstr, 5))) {
       fwrite($fs, $http_request);
       while ( !feof($fs) ) {
@@ -181,7 +181,7 @@ class akismet_Core {
     } else {
       throw new Exception("@todo CONNECTION TO SPAM SERVICE FAILED");
     }
-    Kohana::log("debug", "Received response\n" . print_r($response, 1));
+    Kohana_Log::add("debug", "Received response\n" . print_r($response, 1));
 
     return $response;
   }
diff --git a/modules/comment/controllers/admin_comments.php b/modules/comment/controllers/admin_comments.php
index 13532c4e..1a9f0e6a 100644
--- a/modules/comment/controllers/admin_comments.php
+++ b/modules/comment/controllers/admin_comments.php
@@ -110,7 +110,7 @@ class Admin_Comments_Controller extends Admin_Controller {
 
     $comment = ORM::factory("comment", $id);
     $orig = clone $comment;
-    if ($comment->loaded) {
+    if ($comment->loaded()) {
       $comment->state = $state;
       $comment->save();
     }
diff --git a/modules/comment/models/comment.php b/modules/comment/models/comment.php
index bb9b8833..59b85233 100644
--- a/modules/comment/models/comment.php
+++ b/modules/comment/models/comment.php
@@ -59,7 +59,7 @@ class Comment_Model extends ORM {
   public function save() {
     if (!empty($this->changed)) {
       $this->updated = time();
-      if (!$this->loaded && empty($this->created)) {
+      if (!$this->loaded() && empty($this->created)) {
         $this->created = $this->updated;
         $created = true;
       }
diff --git a/modules/comment/tests/Comment_Event_Test.php b/modules/comment/tests/Comment_Event_Test.php
index f650cabf..ff7f1c26 100644
--- a/modules/comment/tests/Comment_Event_Test.php
+++ b/modules/comment/tests/Comment_Event_Test.php
@@ -27,6 +27,6 @@ class Comment_Event_Test extends Unit_Test_Case {
     $album->delete();
 
     $deleted_comment = ORM::factory("comment", $comment->id);
-    $this->assert_false($deleted_comment->loaded);
+    $this->assert_false($deleted_comment->loaded());
   }
 }
diff --git a/modules/digibug/controllers/digibug.php b/modules/digibug/controllers/digibug.php
index 1bb2691b..cef42b2d 100644
--- a/modules/digibug/controllers/digibug.php
+++ b/modules/digibug/controllers/digibug.php
@@ -81,7 +81,7 @@ class Digibug_Controller extends Controller {
     }
 
     $proxy = ORM::factory("digibug_proxy", array("uuid" => $id));
-    if (!$proxy->loaded || !$proxy->item->loaded) {
+    if (!$proxy->loaded() || !$proxy->item->loaded()) {
       Kohana::show_404();
     }
 
diff --git a/modules/exif/helpers/exif.php b/modules/exif/helpers/exif.php
index 5ddd09d4..b6a55679 100644
--- a/modules/exif/helpers/exif.php
+++ b/modules/exif/helpers/exif.php
@@ -74,7 +74,7 @@ class exif_Core {
     $item->save();
 
     $record = ORM::factory("exif_record")->where("item_id", $item->id)->find();
-    if (!$record->loaded) {
+    if (!$record->loaded()) {
       $record->item_id = $item->id;
     }
     $record->data = serialize($keys);
@@ -88,7 +88,7 @@ class exif_Core {
     $record = ORM::factory("exif_record")
       ->where("item_id", $item->id)
       ->find();
-    if (!$record->loaded) {
+    if (!$record->loaded()) {
       return array();
     }
 
diff --git a/modules/g2_import/helpers/g2_import.php b/modules/g2_import/helpers/g2_import.php
index 202a0e92..1e835a59 100644
--- a/modules/g2_import/helpers/g2_import.php
+++ b/modules/g2_import/helpers/g2_import.php
@@ -458,7 +458,7 @@ class g2_import_Core {
     switch ($g2_type) {
     case "GalleryPhotoItem":
       if (!in_array($g2_item->getMimeType(), array("image/jpeg", "image/gif", "image/png"))) {
-        Kohana::log("alert", "$g2_path is an unsupported image type; using a placeholder gif");
+        Kohana_Log::add("alert", "$g2_path is an unsupported image type; using a placeholder gif");
         $message[] = t("'%path' is an unsupported image type, using a placeholder",
                      array("path" => $g2_path));
         $g2_path = MODPATH . "g2_import/data/broken-image.gif";
@@ -473,7 +473,7 @@ class g2_import_Core {
           self::_decode_html_special_chars(self::extract_description($g2_item)),
           self::map($g2_item->getOwnerId()));
       } catch (Exception $e) {
-        Kohana::log(
+        Kohana_Log::add(
           "alert", "Corrupt image $g2_path\n" . $e->__toString());
         $message[] = t("Corrupt image '%path'", array("path" => $g2_path));
         $message[] = $e->__toString();
@@ -493,13 +493,13 @@ class g2_import_Core {
             self::_decode_html_special_chars(self::extract_description($g2_item)),
             self::map($g2_item->getOwnerId()));
         } catch (Exception $e) {
-          Kohana::log("alert", "Corrupt movie $g2_path\n" . $e->__toString());
+          Kohana_Log::add("alert", "Corrupt movie $g2_path\n" . $e->__toString());
           $message[] = t("Corrupt movie '%path'", array("path" => $g2_path));
           $message[] = $e->__toString();
           $corrupt = 1;
         }
       } else {
-        Kohana::log("alert", "$g2_path is an unsupported movie type");
+        Kohana_Log::add("alert", "$g2_path is an unsupported movie type");
         $message[] = t("'%path' is an unsupported movie type", array("path" => $g2_path));
         $corrupt = 1;
       }
@@ -868,7 +868,7 @@ class g2_import_Core {
   static function map($g2_id) {
     if (!array_key_exists($g2_id, self::$map)) {
       $g2_map = ORM::factory("g2_map")->where("g2_id", $g2_id)->find();
-      self::$map[$g2_id] = $g2_map->loaded ? $g2_map->g3_id : null;
+      self::$map[$g2_id] = $g2_map->loaded() ? $g2_map->g3_id : null;
     }
 
     return self::$map[$g2_id];
@@ -887,7 +887,7 @@ class g2_import_Core {
 
   static function log($msg) {
     message::warning($msg);
-    Kohana::log("alert", $msg);
+    Kohana_Log::add("alert", $msg);
   }
 }
 
@@ -906,7 +906,7 @@ function g2() {
   $args = func_get_arg(0);
   $ret = array_shift($args);
   if ($ret) {
-    Kohana::log("error", "Gallery 2 call failed with: " . $ret->getAsText());
+    Kohana_Log::add("error", "Gallery 2 call failed with: " . $ret->getAsText());
     throw new Exception("@todo G2_FUNCTION_FAILED");
   }
   if (count($args) == 1) {
diff --git a/modules/g2_import/helpers/g2_import_task.php b/modules/g2_import/helpers/g2_import_task.php
index 47a205bd..fef0d186 100644
--- a/modules/g2_import/helpers/g2_import_task.php
+++ b/modules/g2_import/helpers/g2_import_task.php
@@ -66,7 +66,7 @@ class g2_import_task_Core {
 
       $root_g2_id = g2(GalleryCoreApi::getDefaultAlbumId());
       $root = ORM::factory("g2_map")->where("g2_id", $root_g2_id)->find();
-      if (!$root->loaded) {
+      if (!$root->loaded()) {
         $root->g2_id = $root_g2_id;
         $root->g3_id = 1;
         $root->save();
diff --git a/modules/gallery/controllers/admin_maintenance.php b/modules/gallery/controllers/admin_maintenance.php
index 66bcce55..fe5059e7 100644
--- a/modules/gallery/controllers/admin_maintenance.php
+++ b/modules/gallery/controllers/admin_maintenance.php
@@ -75,7 +75,7 @@ class Admin_Maintenance_Controller extends Admin_Controller {
     access::verify_csrf();
 
     $task = ORM::factory("task", $task_id);
-    if (!$task->loaded) {
+    if (!$task->loaded()) {
       throw new Exception("@todo MISSING_TASK");
     }
     $view = new View("admin_maintenance_task.html");
@@ -97,7 +97,7 @@ class Admin_Maintenance_Controller extends Admin_Controller {
     access::verify_csrf();
 
     $task = ORM::factory("task", $task_id);
-    if (!$task->loaded) {
+    if (!$task->loaded()) {
       throw new Exception("@todo MISSING_TASK");
     }
     $view = new View("admin_maintenance_show_log.html");
@@ -114,7 +114,7 @@ class Admin_Maintenance_Controller extends Admin_Controller {
     access::verify_csrf();
 
     $task = ORM::factory("task", $task_id);
-    if (!$task->loaded) {
+    if (!$task->loaded()) {
       throw new Exception("@todo MISSING_TASK");
     }
 
@@ -184,7 +184,7 @@ class Admin_Maintenance_Controller extends Admin_Controller {
     try {
       $task = task::run($task_id);
     } catch (Exception $e) {
-      Kohana::log(
+      Kohana_Log::add(
         "error",
         sprintf(
           "%s in %s at line %s:\n%s", $e->getMessage(), $e->getFile(),
diff --git a/modules/gallery/controllers/albums.php b/modules/gallery/controllers/albums.php
index e67df6f6..cc63d43f 100644
--- a/modules/gallery/controllers/albums.php
+++ b/modules/gallery/controllers/albums.php
@@ -66,6 +66,7 @@ class Albums_Controller extends Items_Controller {
 
     $template = new Theme_View("page.html", "collection", "album");
     $template->set_global("page", $page);
+    $template->set_global("page_title", null);
     $template->set_global("max_pages", $max_pages);
     $template->set_global("page_size", $page_size);
     $template->set_global("item", $album);
@@ -76,7 +77,7 @@ class Albums_Controller extends Items_Controller {
 
     // We can't use math in ORM or the query builder, so do this by hand.  It's important
     // that we do this with math, otherwise concurrent accesses will damage accuracy.
-    Database::instance()->query(
+    db::query(
       "UPDATE {items} SET `view_count` = `view_count` + 1 WHERE `id` = $album->id");
 
     print $template;
diff --git a/modules/gallery/controllers/file_proxy.php b/modules/gallery/controllers/file_proxy.php
index acfd6eb9..11d858c0 100644
--- a/modules/gallery/controllers/file_proxy.php
+++ b/modules/gallery/controllers/file_proxy.php
@@ -58,7 +58,7 @@ class File_Proxy_Controller extends Controller {
 
     // We now have the relative path to the item.  Search for it in the path cache
     $item = ORM::factory("item")->where("relative_path_cache", $path)->find();
-    if (!$item->loaded) {
+    if (!$item->loaded()) {
       // We didn't turn it up.  It's possible that the relative_path_cache is out of date here.
       // There was fallback code, but bharat deleted it in 8f1bca74.  If it turns out to be
       // necessary, it's easily resurrected.
@@ -70,14 +70,14 @@ class File_Proxy_Controller extends Controller {
         foreach (array("flv", "mp4") as $ext) {
           $movie_path = preg_replace('/.jpg$/', ".$ext", $path);
           $item = ORM::factory("item")->where("relative_path_cache", $movie_path)->find();
-          if ($item->loaded) {
+          if ($item->loaded()) {
             break;
           }
         }
       }
     }
 
-    if (!$item->loaded) {
+    if (!$item->loaded()) {
       kohana::show_404();
     }
 
diff --git a/modules/gallery/controllers/l10n_client.php b/modules/gallery/controllers/l10n_client.php
index 3801e6aa..2eda741c 100644
--- a/modules/gallery/controllers/l10n_client.php
+++ b/modules/gallery/controllers/l10n_client.php
@@ -33,7 +33,7 @@ class L10n_Client_Controller extends Controller {
                       "locale" => "root"))
         ->find();
 
-    if (!$root_message->loaded) {
+    if (!$root_message->loaded()) {
       throw new Exception("@todo bad request data / illegal state");
     }
     $is_plural = Gallery_I18n::is_plural_message(unserialize($root_message->message));
@@ -60,7 +60,7 @@ class L10n_Client_Controller extends Controller {
                     "locale" => $locale))
       ->find();
 
-    if (!$entry->loaded) {
+    if (!$entry->loaded()) {
       $entry->key = $key;
       $entry->locale = $locale;
       $entry->message = $root_message->message;
@@ -74,7 +74,7 @@ class L10n_Client_Controller extends Controller {
                     "locale" => $locale))
       ->find();
 
-    if (!$entry_from_incoming->loaded) {
+    if (!$entry_from_incoming->loaded()) {
       $entry->base_revision = $entry_from_incoming->revision;
     }
 
diff --git a/modules/gallery/controllers/permissions.php b/modules/gallery/controllers/permissions.php
index 99943fbb..e03f41a9 100644
--- a/modules/gallery/controllers/permissions.php
+++ b/modules/gallery/controllers/permissions.php
@@ -57,7 +57,7 @@ class Permissions_Controller extends Controller {
     access::required("view", $item);
     access::required("edit", $item);
 
-    if (!empty($group) && $perm->loaded && $item->loaded) {
+    if (!empty($group) && $perm->loaded() && $item->loaded()) {
       switch($command) {
       case "allow":
         access::allow($group, $perm->name, $item);
diff --git a/modules/gallery/controllers/rest.php b/modules/gallery/controllers/rest.php
index 2edf079f..087f2c29 100644
--- a/modules/gallery/controllers/rest.php
+++ b/modules/gallery/controllers/rest.php
@@ -82,7 +82,7 @@ class REST_Controller extends Controller {
     }
 
     $resource = ORM::factory($this->resource_type, (int)$function);
-    if (!$resource->loaded && $request_method != "post") {
+    if (!$resource->loaded() && $request_method != "post") {
       return Kohana::show_404();
     }
 
@@ -111,7 +111,7 @@ class REST_Controller extends Controller {
     }
 
     $resource = ORM::factory($this->resource_type, $resource_id);
-    if (!$resource->loaded) {
+    if (!$resource->loaded()) {
       return Kohana::show_404();
     }
 
diff --git a/modules/gallery/controllers/simple_uploader.php b/modules/gallery/controllers/simple_uploader.php
index 37753ff3..5d32e35f 100644
--- a/modules/gallery/controllers/simple_uploader.php
+++ b/modules/gallery/controllers/simple_uploader.php
@@ -72,7 +72,7 @@ class Simple_Uploader_Controller extends Controller {
           module::event("add_photos_form_completed", $item, $form);
         }
       } catch (Exception $e) {
-        Kohana::log("alert", $e->__toString());
+        Kohana_Log::add("alert", $e->__toString());
         if (file_exists($temp_filename)) {
           unlink($temp_filename);
         }
diff --git a/modules/gallery/helpers/MY_url.php b/modules/gallery/helpers/MY_url.php
index 368c947e..e5eefad7 100644
--- a/modules/gallery/helpers/MY_url.php
+++ b/modules/gallery/helpers/MY_url.php
@@ -32,7 +32,7 @@ class url extends url_Core {
     }
 
     $item = self::get_item_from_uri(Router::$current_uri);
-    if ($item && $item->loaded) {
+    if ($item && $item->loaded()) {
       Router::$controller = "{$item->type}s";
       Router::$controller_path = MODPATH . "gallery/controllers/{$item->type}s.php";
       Router::$method = $item->id;
@@ -51,7 +51,7 @@ class url extends url_Core {
     // but failing that, walk down the tree until we find it.  The fallback code will fix caches
     // as it goes, so it'll never be run frequently.
     $item = ORM::factory("item")->where("relative_url_cache", $current_uri)->find();
-    if (!$item->loaded) {
+    if (!$item->loaded()) {
       $count = count(Router::$segments);
       foreach (ORM::factory("item")
                ->where("slug", html_entity_decode(Router::$segments[$count - 1], ENT_QUOTES))
diff --git a/modules/gallery/helpers/access.php b/modules/gallery/helpers/access.php
index c1c1f9d1..9d27181a 100644
--- a/modules/gallery/helpers/access.php
+++ b/modules/gallery/helpers/access.php
@@ -91,7 +91,7 @@ class access_Core {
    * @return boolean
    */
   static function user_can($user, $perm_name, $item) {
-    if (!$item->loaded) {
+    if (!$item->loaded()) {
       return false;
     }
 
@@ -101,7 +101,7 @@ class access_Core {
 
     $resource = $perm_name == "view" ?
       $item : model_cache::get("access_cache", $item->id, "item_id");
-    foreach ($user->groups as $group) {
+    foreach ($user->groups->find_all() as $group) {
       if ($resource->__get("{$perm_name}_{$group->id}") === self::ALLOW) {
         return true;
       }
@@ -175,7 +175,7 @@ class access_Core {
       ->limit(1)
       ->find();
 
-    if ($lock->loaded) {
+    if ($lock->loaded()) {
       return $lock;
     } else {
       return null;
@@ -201,7 +201,7 @@ class access_Core {
     if (!($group instanceof Group_Definition)) {
       throw new Exception("@todo PERMISSIONS_ONLY_WORK_ON_GROUPS");
     }
-    if (!$album->loaded) {
+    if (!$album->loaded()) {
       throw new Exception("@todo INVALID_ALBUM $album->id");
     }
     if (!$album->is_album()) {
@@ -282,7 +282,7 @@ class access_Core {
   */
   static function register_permission($name, $display_name) {
     $permission = ORM::factory("permission", $name);
-    if ($permission->loaded) {
+    if ($permission->loaded()) {
       throw new Exception("@todo PERMISSION_ALREADY_EXISTS $name");
     }
     $permission->name = $name;
@@ -305,7 +305,7 @@ class access_Core {
       self::_drop_columns($name, $group);
     }
     $permission = ORM::factory("permission")->where("name", $name)->find();
-    if ($permission->loaded) {
+    if ($permission->loaded()) {
       $permission->delete();
     }
   }
@@ -342,7 +342,7 @@ class access_Core {
    */
   static function add_item($item) {
     $access_intent = ORM::factory("access_intent", $item->id);
-    if ($access_intent->loaded) {
+    if ($access_intent->loaded()) {
       throw new Exception("@todo ITEM_ALREADY_ADDED $item->id");
     }
     $access_intent = ORM::factory("access_intent");
@@ -497,7 +497,7 @@ class access_Core {
         ->orderby("left_ptr", "DESC")
         ->limit(1)
         ->find();
-      if ($tmp_item->loaded) {
+      if ($tmp_item->loaded()) {
         $item = $tmp_item;
       }
     }
@@ -568,7 +568,7 @@ class access_Core {
         ->orderby("left_ptr", "DESC")
         ->limit(1)
         ->find();
-      if ($tmp_item->loaded) {
+      if ($tmp_item->loaded()) {
         $item = $tmp_item;
       }
     }
diff --git a/modules/gallery/helpers/album.php b/modules/gallery/helpers/album.php
index 72a79a75..c82a5509 100644
--- a/modules/gallery/helpers/album.php
+++ b/modules/gallery/helpers/album.php
@@ -34,7 +34,7 @@ class album_Core {
    * @return Item_Model
    */
   static function create($parent, $name, $title, $description=null, $owner_id=null, $slug=null) {
-    if (!$parent->loaded || !$parent->is_album()) {
+    if (!$parent->loaded() || !$parent->is_album()) {
       throw new Exception("@todo INVALID_PARENT");
     }
 
diff --git a/modules/gallery/helpers/auth.php b/modules/gallery/helpers/auth.php
index 9c69cecd..21a39bfb 100644
--- a/modules/gallery/helpers/auth.php
+++ b/modules/gallery/helpers/auth.php
@@ -46,7 +46,7 @@ class auth_Core {
       try {
         Session::instance()->destroy();
       } catch (Exception $e) {
-        Kohana::log("error", $e);
+        Kohana_Log::add("error", $e);
       }
       module::event("user_logout", $user);
     }
diff --git a/modules/gallery/helpers/gallery_graphics.php b/modules/gallery/helpers/gallery_graphics.php
index c24d2bde..ce08bbd7 100644
--- a/modules/gallery/helpers/gallery_graphics.php
+++ b/modules/gallery/helpers/gallery_graphics.php
@@ -123,7 +123,7 @@ class gallery_graphics_Core {
 
       module::event("graphics_composite_completed", $input_file, $output_file, $options);
     } catch (ErrorException $e) {
-      Kohana::log("error", $e->get_message());
+      Kohana_Log::add("error", $e->get_message());
     }
   }
 }
diff --git a/modules/gallery/helpers/gallery_task.php b/modules/gallery/helpers/gallery_task.php
index e0b03682..4d6de3ba 100644
--- a/modules/gallery/helpers/gallery_task.php
+++ b/modules/gallery/helpers/gallery_task.php
@@ -66,7 +66,7 @@ class gallery_task_Core {
         }
 
         $item = ORM::factory("item", $row->id);
-        if ($item->loaded) {
+        if ($item->loaded()) {
           try {
             graphics::generate($item);
             $completed++;
diff --git a/modules/gallery/helpers/graphics.php b/modules/gallery/helpers/graphics.php
index d6a2f00c..a78cadd0 100644
--- a/modules/gallery/helpers/graphics.php
+++ b/modules/gallery/helpers/graphics.php
@@ -171,7 +171,7 @@ class graphics_Core {
     } catch (Exception $e) {
       // Something went wrong rebuilding the image.  Leave it dirty and move on.
       // @todo we should handle this better.
-      Kohana::log("error", "Caught exception rebuilding image: {$item->title}\n" .
+      Kohana_Log::add("error", "Caught exception rebuilding image: {$item->title}\n" .
                   $e->getMessage() . "\n" . $e->getTraceAsString());
       throw $e;
     }
diff --git a/modules/gallery/helpers/identity.php b/modules/gallery/helpers/identity.php
index 72e3312d..05614559 100644
--- a/modules/gallery/helpers/identity.php
+++ b/modules/gallery/helpers/identity.php
@@ -75,14 +75,14 @@ class identity_Core {
 
       if (!$session->get("group_ids")) {
         $ids = array();
-        foreach ($user->groups as $group) {
+        foreach ($user->groups->find_all() as $group) {
           $ids[] = $group->id;
         }
         $session->set("group_ids", $ids);
       }
     } catch (Exception $e) {
       // Log it, so we at least have so notification that we swallowed the exception.
-      Kohana::log("error", "Load_user Exception: " . $e->__toString());
+      Kohana_Log::add("error", "Load_user Exception: " . $e->__toString());
       try {
         Session::instance()->destroy();
       } catch (Exception $e) {
diff --git a/modules/gallery/helpers/item.php b/modules/gallery/helpers/item.php
index 8f96c3d9..109fa6f8 100644
--- a/modules/gallery/helpers/item.php
+++ b/modules/gallery/helpers/item.php
@@ -156,13 +156,7 @@ class item_Core {
     $view_restrictions = array();
     if (!identity::active_user()->admin) {
       foreach (identity::group_ids_for_active_user() as $id) {
-        // Separate the first restriction from the rest to make it easier for us to formulate
-        // our where clause below
-        if (empty($view_restrictions)) {
-          $view_restrictions[0] = "items.view_$id";
-        } else {
-          $view_restrictions[1]["items.view_$id"] = access::ALLOW;
-        }
+        $view_restrictions[] = "items.view_$id";
       }
     }
     switch (count($view_restrictions)) {
@@ -170,14 +164,14 @@ class item_Core {
       break;
 
     case 1:
-      $model->where($view_restrictions[0], access::ALLOW);
+      $model->where($view_restrictions[0], "=", access::ALLOW);
       break;
 
     default:
-      $model->open_paren();
-      $model->where($view_restrictions[0], access::ALLOW);
-      $model->orwhere($view_restrictions[1]);
-      $model->close_paren();
+      $model
+        ->and_open()
+        ->or_where($view_restrictions, "=", access::ALLOW)
+        ->close();
       break;
     }
 
diff --git a/modules/gallery/helpers/l10n_client.php b/modules/gallery/helpers/l10n_client.php
index 3460cc65..aaf6ff46 100644
--- a/modules/gallery/helpers/l10n_client.php
+++ b/modules/gallery/helpers/l10n_client.php
@@ -136,7 +136,7 @@ class l10n_client_Core {
       $entry = ORM::factory("incoming_translation")
         ->where(array("key" => $key, "locale" => $locale))
         ->find();
-      if (!$entry->loaded) {
+      if (!$entry->loaded()) {
         // @todo Load a message key -> message (text) dict into memory outside of this loop
         $root_entry = ORM::factory("incoming_translation")
           ->where(array("key" => $key, "locale" => "root"))
diff --git a/modules/gallery/helpers/l10n_scanner.php b/modules/gallery/helpers/l10n_scanner.php
index e36d419d..6c09a686 100644
--- a/modules/gallery/helpers/l10n_scanner.php
+++ b/modules/gallery/helpers/l10n_scanner.php
@@ -43,7 +43,7 @@ class l10n_scanner_Core {
     }
 
     $entry = ORM::factory("incoming_translation", array("key" => $key));
-    if (!$entry->loaded) {
+    if (!$entry->loaded()) {
       $entry->key = $key;
       $entry->message = serialize($message);
       $entry->locale = "root";
diff --git a/modules/gallery/helpers/model_cache.php b/modules/gallery/helpers/model_cache.php
index a3e09862..302e42d9 100644
--- a/modules/gallery/helpers/model_cache.php
+++ b/modules/gallery/helpers/model_cache.php
@@ -22,8 +22,8 @@ class model_cache_Core {
 
   static function get($model_name, $id, $field_name="id") {
     if (TEST_MODE || empty(self::$cache->$model_name->$field_name->$id)) {
-      $model = ORM::factory($model_name)->where($field_name, $id)->find();
-      if (!$model->loaded) {
+      $model = ORM::factory($model_name)->where($field_name, "=", $id)->find();
+      if (!$model->loaded()) {
         throw new Exception("@todo MISSING_MODEL $model_name:$id");
       }
       self::$cache->$model_name->$field_name->$id = $model;
diff --git a/modules/gallery/helpers/module.php b/modules/gallery/helpers/module.php
index e6c196ce..e54a4352 100644
--- a/modules/gallery/helpers/module.php
+++ b/modules/gallery/helpers/module.php
@@ -36,13 +36,13 @@ class module_Core {
    */
   static function set_version($module_name, $version) {
     $module = self::get($module_name);
-    if (!$module->loaded) {
+    if (!$module->loaded()) {
       $module->name = $module_name;
       $module->active = $module_name == "gallery";  // only gallery is active by default
     }
     $module->version = $version;
     $module->save();
-    Kohana::log("debug", "$module_name: version is now $version");
+    Kohana_Log::add("debug", "$module_name: version is now $version");
   }
 
   /**
@@ -126,9 +126,10 @@ class module_Core {
    * @param string $module_name
    */
   static function install($module_name) {
-    $kohana_modules = Kohana::config("core.modules");
+    $config = Kohana_Config::instance();
+    $kohana_modules = $config->get("core.modules");
     array_unshift($kohana_modules, MODPATH . $module_name);
-    Kohana::config_set("core.modules",  $kohana_modules);
+    $config->set("core.modules",  $kohana_modules);
 
     // Rebuild the include path so the module installer can benefit from auto loading
     Kohana::include_paths(true);
@@ -142,7 +143,7 @@ class module_Core {
 
     // Now the module is installed but inactive, so don't leave it in the active path
     array_shift($kohana_modules);
-    Kohana::config_set("core.modules",  $kohana_modules);
+    $config->set("core.modules",  $kohana_modules);
 
     log::success(
       "module", t("Installed module %module_name", array("module_name" => $module_name)));
@@ -193,9 +194,10 @@ class module_Core {
    * @param string $module_name
    */
   static function activate($module_name) {
-    $kohana_modules = Kohana::config("core.modules");
+    $config = Kohana_Config::instance();
+    $kohana_modules = $config->get("core.modules");
     array_unshift($kohana_modules, MODPATH . $module_name);
-    Kohana::config_set("core.modules",  $kohana_modules);
+    $config->set("core.modules",  $kohana_modules);
 
     $installer_class = "{$module_name}_installer";
     if (method_exists($installer_class, "activate")) {
@@ -203,7 +205,7 @@ class module_Core {
     }
 
     $module = self::get($module_name);
-    if ($module->loaded) {
+    if ($module->loaded()) {
       $module->active = true;
       $module->save();
     }
@@ -230,7 +232,7 @@ class module_Core {
     }
 
     $module = self::get($module_name);
-    if ($module->loaded) {
+    if ($module->loaded()) {
       $module->active = false;
       $module->save();
     }
@@ -257,7 +259,7 @@ class module_Core {
 
     graphics::remove_rules($module_name);
     $module = self::get($module_name);
-    if ($module->loaded) {
+    if ($module->loaded()) {
       $module->delete();
     }
     module::load_modules();
@@ -290,8 +292,9 @@ class module_Core {
       }
     }
     self::$active[] = $gallery;  // put gallery last in the module list to match core.modules
-    Kohana::config_set(
-      "core.modules", array_merge($kohana_modules, Kohana::config("core.modules")));
+    $config = Kohana_Config::instance();
+    $config->set(
+      "core.modules", array_merge($kohana_modules, $config->get("core.modules")));
   }
 
   /**
@@ -348,11 +351,11 @@ class module_Core {
     // We cache all vars in gallery._cache so that we can load all vars at once for
     // performance.
     if (empty(self::$var_cache)) {
-      $row = Database::instance()
+      $row = db::build()
         ->select("value")
         ->from("vars")
         ->where(array("module_name" => "gallery", "name" => "_cache"))
-        ->get()
+        ->execute()
         ->current();
       if ($row) {
         self::$var_cache = unserialize($row->value);
@@ -395,7 +398,7 @@ class module_Core {
       ->where("module_name", $module_name)
       ->where("name", $name)
       ->find();
-    if (!$var->loaded) {
+    if (!$var->loaded()) {
       $var->module_name = $module_name;
       $var->name = $name;
     }
@@ -432,7 +435,7 @@ class module_Core {
       ->where("module_name", $module_name)
       ->where("name", $name)
       ->find();
-    if ($var->loaded) {
+    if ($var->loaded()) {
       $var->delete();
     }
 
diff --git a/modules/gallery/helpers/movie.php b/modules/gallery/helpers/movie.php
index e84e8ea6..a319471d 100644
--- a/modules/gallery/helpers/movie.php
+++ b/modules/gallery/helpers/movie.php
@@ -36,7 +36,7 @@ class movie_Core {
    */
   static function create($parent, $filename, $name, $title,
                          $description=null, $owner_id=null, $slug=null) {
-    if (!$parent->loaded || !$parent->is_album()) {
+    if (!$parent->loaded() || !$parent->is_album()) {
       throw new Exception("@todo INVALID_PARENT");
     }
 
diff --git a/modules/gallery/helpers/photo.php b/modules/gallery/helpers/photo.php
index 01cf5278..90cb108f 100644
--- a/modules/gallery/helpers/photo.php
+++ b/modules/gallery/helpers/photo.php
@@ -36,7 +36,7 @@ class photo_Core {
    */
   static function create($parent, $filename, $name, $title,
                          $description=null, $owner_id=null, $slug=null) {
-    if (!$parent->loaded || !$parent->is_album()) {
+    if (!$parent->loaded() || !$parent->is_album()) {
       throw new Exception("@todo INVALID_PARENT");
     }
 
diff --git a/modules/gallery/helpers/site_status.php b/modules/gallery/helpers/site_status.php
index 2b090776..d58b935d 100644
--- a/modules/gallery/helpers/site_status.php
+++ b/modules/gallery/helpers/site_status.php
@@ -69,7 +69,7 @@ class site_status_Core {
     $message = ORM::factory("message")
       ->where("key", $permanent_key)
       ->find();
-    if (!$message->loaded) {
+    if (!$message->loaded()) {
       $message->key = $permanent_key;
     }
     $message->severity = $severity;
@@ -83,7 +83,7 @@ class site_status_Core {
    */
   static function clear($permanent_key) {
     $message = ORM::factory("message")->where("key", $permanent_key)->find();
-    if ($message->loaded) {
+    if ($message->loaded()) {
       $message->delete();
     }
   }
diff --git a/modules/gallery/helpers/task.php b/modules/gallery/helpers/task.php
index dac5f9d3..4aa95f33 100644
--- a/modules/gallery/helpers/task.php
+++ b/modules/gallery/helpers/task.php
@@ -51,7 +51,7 @@ class task_Core {
 
   static function cancel($task_id) {
     $task = ORM::factory("task", $task_id);
-    if (!$task->loaded) {
+    if (!$task->loaded()) {
       throw new Exception("@todo MISSING_TASK");
     }
     $task->done = 1;
@@ -65,14 +65,14 @@ class task_Core {
 
   static function remove($task_id) {
     $task = ORM::factory("task", $task_id);
-    if ($task->loaded) {
+    if ($task->loaded()) {
       $task->delete();
     }
   }
 
   static function run($task_id) {
     $task = ORM::factory("task", $task_id);
-    if (!$task->loaded) {
+    if (!$task->loaded()) {
       throw new Exception("@todo MISSING_TASK");
     }
 
@@ -84,7 +84,7 @@ class task_Core {
       }
       $task->save();
     } catch (Exception $e) {
-      Kohana::log("error", $e->__toString());
+      Kohana_Log::add("error", $e->__toString());
       $task->log($e->__toString());
       $task->state = "error";
       $task->done = true;
diff --git a/modules/gallery/helpers/theme.php b/modules/gallery/helpers/theme.php
index 16ed104e..c7a9b49a 100644
--- a/modules/gallery/helpers/theme.php
+++ b/modules/gallery/helpers/theme.php
@@ -43,7 +43,7 @@ class theme_Core {
     }
     $modules = Kohana::config("core.modules");
     array_unshift($modules, THEMEPATH . $theme_name);
-    Kohana::config_set("core.modules", $modules);
+    Kohana_Config::instance()->set("core.modules", $modules);
   }
 
   static function get_edit_form_admin() {
diff --git a/modules/gallery/libraries/Admin_View.php b/modules/gallery/libraries/Admin_View.php
index cbb781a1..c190f110 100644
--- a/modules/gallery/libraries/Admin_View.php
+++ b/modules/gallery/libraries/Admin_View.php
@@ -31,7 +31,7 @@ class Admin_View_Core extends Gallery_View {
     if (!file_exists(THEMEPATH . $theme_name)) {
       module::set_var("gallery", "active_admin_theme", "admin_wind");
       theme::load_themes();
-      Kohana::log("error", "Unable to locate theme '$theme_name', switching to default theme.");
+      Kohana_Log::add("error", "Unable to locate theme '$theme_name', switching to default theme.");
     }
     parent::__construct($name);
 
diff --git a/modules/gallery/libraries/Gallery_I18n.php b/modules/gallery/libraries/Gallery_I18n.php
index 0571fe58..42fae266 100644
--- a/modules/gallery/libraries/Gallery_I18n.php
+++ b/modules/gallery/libraries/Gallery_I18n.php
@@ -128,21 +128,21 @@ class Gallery_I18n_Core {
     if (!isset($this->_cache[$locale])) {
       $this->_cache[$locale] = array();
       // TODO: Load data from locale file instead of the DB.
-      foreach (Database::instance()
+      foreach (db::build()
                ->select("key", "translation")
                ->from("incoming_translations")
                ->where(array("locale" => $locale))
-               ->get()
+               ->execute()
                ->as_array() as $row) {
         $this->_cache[$locale][$row->key] = unserialize($row->translation);
       }
 
       // Override incoming with outgoing...
-      foreach (Database::instance()
+      foreach (db::build()
                ->select("key", "translation")
                ->from("outgoing_translations")
                ->where(array("locale" => $locale))
-               ->get()
+               ->execute()
                ->as_array() as $row) {
         $this->_cache[$locale][$row->key] = unserialize($row->translation);
       }
diff --git a/modules/gallery/libraries/Gallery_View.php b/modules/gallery/libraries/Gallery_View.php
index 3bf56d0f..940c5321 100644
--- a/modules/gallery/libraries/Gallery_View.php
+++ b/modules/gallery/libraries/Gallery_View.php
@@ -32,7 +32,7 @@ class Gallery_View_Core extends View {
     if (($path = gallery::find_file("js", $file, false))) {
       $this->scripts[$path] = 1;
     } else {
-      Kohana::log("error", "Can't find script file: $file");
+      Kohana_Log::add("error", "Can't find script file: $file");
     }
   }
 
@@ -55,7 +55,7 @@ class Gallery_View_Core extends View {
     if (($path = gallery::find_file("css", $file, false))) {
       $this->css[$path] = 1;
     } else {
-      Kohana::log("error", "Can't find css file: $file");
+      Kohana_Log::add("error", "Can't find css file: $file");
     }
   }
 
@@ -130,7 +130,7 @@ class Gallery_View_Core extends View {
           $search[] = $match[0];
           $replace[] = "url('" . url::abs_file($relative) . "')";
         } else {
-          Kohana::log("error", "Missing URL reference '{$match[1]}' in CSS file '$css_file'");
+          Kohana_Log::add("error", "Missing URL reference '{$match[1]}' in CSS file '$css_file'");
         }
       }
       $replace = str_replace(DIRECTORY_SEPARATOR, "/", $replace);
diff --git a/modules/gallery/libraries/IdentityProvider.php b/modules/gallery/libraries/IdentityProvider.php
index e213ae97..bcb3056a 100644
--- a/modules/gallery/libraries/IdentityProvider.php
+++ b/modules/gallery/libraries/IdentityProvider.php
@@ -54,7 +54,7 @@ class IdentityProvider_Core {
    */
   static function reset() {
     self::$instance = null;
-    Kohana::config_clear("identity");
+    Kohana_Config::instance()->clear("identity");
   }
 
   /**
@@ -90,7 +90,7 @@ class IdentityProvider_Core {
                                  get_class($this), "IdentityProvider_Driver");
     }
 
-    Kohana::log("debug", "Identity Library initialized");
+    Kohana_Log::add("debug", "Identity Library initialized");
   }
 
   /**
diff --git a/modules/gallery/libraries/MY_ORM.php b/modules/gallery/libraries/MY_ORM.php
index 2c9ad1d7..56c776aa 100644
--- a/modules/gallery/libraries/MY_ORM.php
+++ b/modules/gallery/libraries/MY_ORM.php
@@ -21,16 +21,6 @@ class ORM extends ORM_Core {
   // Track the original value of this ORM so that we can look it up in ORM::original()
   protected $original = null;
 
-  public function open_paren() {
-    $this->db->open_paren();
-    return $this;
-  }
-
-  public function close_paren() {
-    $this->db->close_paren();
-    return $this;
-  }
-
   public function save() {
     model_cache::clear();
     $result = parent::save();
diff --git a/modules/gallery/libraries/MY_View.php b/modules/gallery/libraries/MY_View.php
index eb55aca6..0311f2dd 100644
--- a/modules/gallery/libraries/MY_View.php
+++ b/modules/gallery/libraries/MY_View.php
@@ -18,6 +18,31 @@
  * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
  */
 class View extends View_Core {
+  static $global_data;
+
+  /**
+   * Reimplement Kohana 2.3's View::set_global() functionality.
+   */
+  public function set_global($key, $value) {
+    View::$global_data->$key = $value;
+    $this->$key = $value;
+  }
+
+  public function __isset($key) {
+    if (isset(View::$global_data->$key)) {
+      return true;
+    }
+    return parent::__isset($key);
+  }
+
+  public function &__get($key) {
+    Kohana_Log::add("error",print_r("__get($key)",1));
+    if (isset(View::$global_data->$key)) {
+      return View::$global_data->$key;
+    }
+    return parent::__get($key);
+  }
+
   /**
    * Override View_Core::__construct so that we can set the csrf value into all views.
    *
@@ -38,7 +63,7 @@ class View extends View_Core {
     try {
       return parent::render($print, $renderer);
     } catch (Exception $e) {
-      Kohana::Log("error", $e->getMessage() . "\n" . $e->getTraceAsString());
+      Kohana_Log::add("error", $e->getMessage() . "\n" . $e->getTraceAsString());
       return "";
     }
   }
diff --git a/modules/gallery/libraries/ORM_MPTT.php b/modules/gallery/libraries/ORM_MPTT.php
index 83d2445c..01b2d7b7 100644
--- a/modules/gallery/libraries/ORM_MPTT.php
+++ b/modules/gallery/libraries/ORM_MPTT.php
@@ -133,10 +133,10 @@ class ORM_MPTT_Core extends ORM {
    */
   function parents() {
     return $this
-      ->where("`left_ptr` <= {$this->left_ptr}")
-      ->where("`right_ptr` >= {$this->right_ptr}")
-      ->where("id <> {$this->id}")
-      ->orderby("left_ptr", "ASC")
+      ->where("left_ptr", "<=", $this->left_ptr)
+      ->where("right_ptr", ">=", $this->right_ptr)
+      ->where("id", "<>", $this->id)
+      ->order_by("left_ptr", "ASC")
       ->find_all();
   }
 
@@ -147,14 +147,17 @@ class ORM_MPTT_Core extends ORM {
    * @param   integer  SQL limit
    * @param   integer  SQL offset
    * @param   array    additional where clauses
-   * @param   array    orderby
+   * @param   array    order_by
    * @return array ORM
    */
-  function children($limit=null, $offset=0, $where=array(), $orderby=array("id" => "ASC")) {
+  function children($limit=null, $offset=0, $where=null, $order_by=array("id" => "ASC")) {
+    if ($where) {
+      $this->where($where);
+    }
+
     return $this
-      ->where("parent_id", $this->id)
-      ->where($where)
-      ->orderby($orderby)
+      ->where("parent_id", "=", $this->id)
+      ->order_by($order_by)
       ->find_all($limit, $offset);
   }
 
@@ -165,10 +168,13 @@ class ORM_MPTT_Core extends ORM {
    * @param   array    additional where clauses
    * @return array ORM
    */
-  function children_count($where=array()) {
+  function children_count($where=null) {
+    if ($where) {
+      $this->where($where);
+    }
+
     return $this
-      ->where($where)
-      ->where("parent_id", $this->id)
+      ->where("parent_id", "=", $this->id)
       ->count_all();
   }
 
@@ -178,15 +184,18 @@ class ORM_MPTT_Core extends ORM {
    * @param   integer  SQL limit
    * @param   integer  SQL offset
    * @param   array    additional where clauses
-   * @param   array    orderby
+   * @param   array    order_by
    * @return object ORM_Iterator
    */
-  function descendants($limit=null, $offset=0, $where=array(), $orderby=array("id" => "ASC")) {
+  function descendants($limit=null, $offset=0, $where=null, $order_by=array("id" => "ASC")) {
+    if ($where) {
+      $this->where($where);
+    }
+
     return $this
-      ->where("left_ptr >", $this->left_ptr)
-      ->where("right_ptr <=", $this->right_ptr)
-      ->where($where)
-      ->orderby($orderby)
+      ->where("left_ptr", ">", $this->left_ptr)
+      ->where("right_ptr", "<=", $this->right_ptr)
+      ->order_by($order_by)
       ->find_all($limit, $offset);
   }
 
@@ -196,11 +205,14 @@ class ORM_MPTT_Core extends ORM {
    * @param    array    additional where clauses
    * @return   integer  child count
    */
-  function descendants_count($where=array()) {
+  function descendants_count($where=null) {
+    if ($where) {
+      $this->where($where);
+    }
+
     return $this
-      ->where("left_ptr >", $this->left_ptr)
-      ->where("right_ptr <=", $this->right_ptr)
-      ->where($where)
+      ->where("left_ptr", ">", $this->left_ptr)
+      ->where("right_ptr", "<=", $this->right_ptr)
       ->count_all();
   }
 
diff --git a/modules/gallery/libraries/SafeString.php b/modules/gallery/libraries/SafeString.php
index ba3a8ffd..cc63f3a7 100644
--- a/modules/gallery/libraries/SafeString.php
+++ b/modules/gallery/libraries/SafeString.php
@@ -146,7 +146,7 @@ class SafeString_Core {
    * Escape special HTML chars ("<", ">", "&", etc.) to HTML entities.
    */
   private static function _escape_for_html($dirty_html) {
-    return html::specialchars($dirty_html);
+    return html::chars($dirty_html);
   }
 
   /**
diff --git a/modules/gallery/libraries/Sendmail.php b/modules/gallery/libraries/Sendmail.php
index 7bc21a67..aa2b51a9 100644
--- a/modules/gallery/libraries/Sendmail.php
+++ b/modules/gallery/libraries/Sendmail.php
@@ -52,7 +52,7 @@ class Sendmail_Core {
       break;
     case  "header":
       if (count($value) != 2) {
-        Kohana::log("error", wordwrap("Invalid header parameters\n" . Kohana::debug($value)));
+        Kohana_Log::add("error", wordwrap("Invalid header parameters\n" . Kohana::debug($value)));
         throw new Exception("@todo INVALID_HEADER_PARAMETERS");
       }
       $this->headers[$value[0]] = $value[1];
@@ -71,7 +71,7 @@ class Sendmail_Core {
 
   public function send() {
     if (empty($this->to)) {
-      Kohana::log("error", wordwrap("Sending mail failed:\nNo to address specified"));
+      Kohana_Log::add("error", wordwrap("Sending mail failed:\nNo to address specified"));
       throw new Exception("@todo TO_IS_REQUIRED_FOR_MAIL");
     }
     $to = implode(", ", $this->to);
diff --git a/modules/gallery/libraries/Theme_View.php b/modules/gallery/libraries/Theme_View.php
index b64deab9..03f67671 100644
--- a/modules/gallery/libraries/Theme_View.php
+++ b/modules/gallery/libraries/Theme_View.php
@@ -33,7 +33,7 @@ class Theme_View_Core extends Gallery_View {
     if (!file_exists(THEMEPATH . $theme_name)) {
       module::set_var("gallery", "active_site_theme", "wind");
       theme::load_themes();
-      Kohana::log("error", "Unable to locate theme '$theme_name', switching to default theme.");
+      Kohana_Log::add("error", "Unable to locate theme '$theme_name', switching to default theme.");
     }
     parent::__construct($name);
 
diff --git a/modules/gallery/libraries/drivers/Cache/Database.php b/modules/gallery/libraries/drivers/Cache/Database.php
index 7e2aeabc..d27bcc32 100644
--- a/modules/gallery/libraries/drivers/Cache/Database.php
+++ b/modules/gallery/libraries/drivers/Cache/Database.php
@@ -20,43 +20,33 @@
 /*
  * Based on the Cache_Sqlite_Driver developed by the Kohana Team
  */
-class Cache_Database_Driver implements Cache_Driver {
+class Cache_Database_Driver extends Cache_Driver {
   // Kohana database instance
   protected $db;
 
   /**
-   * Tests that the storage location is a directory and is writable.
-   */
-  public function __construct() {
-    // Open up an instance of the database
-    $this->db = Database::instance();
-
-    if (!$this->db->table_exists("caches")) {
-      throw new Exception("@todo Cache table is not defined");
-    }
-  }
-
-  /**
    * Checks if a cache id is already set.
    *
    * @param  string   cache id
    * @return boolean
    */
   public function exists($id) {
-    $count = $this->db->count_records("caches", array("key" => $id, "expiration >=" => time()));
+    $count = db::build()
+      ->where("key", "=", $id)
+      ->where("expiration", ">=", "time()")
+      ->count_records("caches");
     return $count > 0;
   }
 
   /**
    * Sets a cache item to the given data, tags, and lifetime.
    *
-   * @param   string   cache id to set
-   * @param   string   data in the cache
+   * @param   array    assoc array of key => value pairs
    * @param   array    cache tags
    * @param   integer  lifetime
    * @return  bool
    */
-  public function set($id, $data, array $tags = NULL, $lifetime) {
+  public function set($items, $tags=null, $lifetime=null) {
     if (!empty($tags)) {
       // Escape the tags, adding brackets so the tag can be explicitly matched
       $tags = "<" . implode(">,<", $tags) . ">";
@@ -69,46 +59,46 @@ class Cache_Database_Driver implements Cache_Driver {
       $lifetime += time();
     }
 
-    if ($this->exists($id)) {
-      $status = $this->db->update(
-        "caches",
-        array("tags" => $tags, "expiration" => $lifetime, "cache" => serialize($data)), array("key" => $id));
-    } else {
-      $status = $this->db->insert(
-        "caches",
-        array("key" => $id, "tags" => $tags, "expiration" => $lifetime, "cache" => serialize($data)));
+    foreach ($items as $id => $data) {
+      if ($this->exists($id)) {
+        $status = db::build()->update(
+          "caches",
+          array("tags" => $tags, "expiration" => $lifetime, "cache" => serialize($data)),
+          array("key", "=", $id));
+      } else {
+        $status = db::build()->insert(
+          "caches",
+          array("key" => $id, "tags" => $tags, "expiration" => $lifetime, "cache" => serialize($data)));
+      }
     }
 
-    return count($status) > 0;
+    return true;
   }
 
   /**
-   * Finds an array of ids for a given tag.
-   *
-   * @param  string  tag name
-   * @return array   of ids that match the tag
+   * Get cache items by tag
+   * @param   array    cache tags
+   * @return  array    cached data
    */
-  public function find($tag) {
-    $db_result = $this->db->from("caches")
-      ->like("tags", "<$tag>")
-      ->get()
-      ->result(true);
+  public function get_tag($tags) {
+    $db = db::build()->from("caches");
+    foreach ($tags as $tag) {
+      $db->where("tags", "like", "<$tag>");
+    }
+    $db_result = $db->execute()->as_array();
 
     // An array will always be returned
     $result = array();
 
+    // Disable notices for unserializing
+    $ER = error_reporting(~E_NOTICE);
     if ($db_result->count() > 0) {
-      // Disable notices for unserializing
-      $ER = error_reporting(~E_NOTICE);
-
       foreach ($db_result as $row) {
         // Add each cache to the array
         $result[$row->key] = unserialize($row->cache);
       }
-
-      // Turn notices back on
-      error_reporting($ER);
     }
+    error_reporting($ER);
 
     return $result;
   }
@@ -120,9 +110,13 @@ class Cache_Database_Driver implements Cache_Driver {
    * @param  string  cache id
    * @return mixed|NULL
    */
-  public function get($id) {
+  public function get($keys, $single=false) {
     $data = null;
-    $result = $this->db->getwhere("caches", array("key" => $id));
+    $result = db::build()
+      ->from("caches")
+      ->where("key", "IN", $keys)
+      ->select()
+      ->execute();
 
     if (count($result) > 0) {
       $cache = $result->current();
@@ -169,6 +163,13 @@ class Cache_Database_Driver implements Cache_Driver {
   }
 
   /**
+   * Delete cache items by tag
+   */
+  public function delete_tag($tags) {
+    return $this->delete($tags, true);
+  }
+
+  /**
    * Deletes all cache files that are older than the current time.
    */
   public function delete_expired() {
@@ -180,4 +181,10 @@ class Cache_Database_Driver implements Cache_Driver {
     return count($status) > 0;
   }
 
-} // End Cache Database Driver
\ No newline at end of file
+  /**
+   * Empty the cache
+   */
+  public function delete_all() {
+    db::build()->query("TRUNCATE {caches}");
+  }
+}
\ No newline at end of file
diff --git a/modules/gallery/models/item.php b/modules/gallery/models/item.php
index d27e331b..bd1f9af5 100644
--- a/modules/gallery/models/item.php
+++ b/modules/gallery/models/item.php
@@ -309,7 +309,7 @@ class Item_Model extends ORM_MPTT {
    * @return string
    */
   public function relative_path() {
-    if (!$this->loaded) {
+    if (!$this->loaded()) {
       return;
     }
 
@@ -324,7 +324,7 @@ class Item_Model extends ORM_MPTT {
    * @return string
    */
   public function relative_url() {
-    if (!$this->loaded) {
+    if (!$this->loaded()) {
       return;
     }
 
@@ -383,7 +383,7 @@ class Item_Model extends ORM_MPTT {
 
     if (!empty($this->changed) && $significant_changes) {
       $this->updated = time();
-      if (!$this->loaded) {
+      if (!$this->loaded()) {
         $this->created = $this->updated;
         $this->weight = item::get_max_weight();
       } else {
diff --git a/modules/gallery/models/log.php b/modules/gallery/models/log.php
index c816a4a7..a2044325 100644
--- a/modules/gallery/models/log.php
+++ b/modules/gallery/models/log.php
@@ -28,7 +28,7 @@ class Log_Model extends ORM {
       try {
         return identity::lookup_user($this->user_id);
       } catch (Exception $e) {
-        Kohana::log("alert", "Unable to load user with id $this->user_id");
+        Kohana_Log::add("alert", "Unable to load user with id $this->user_id");
         return null;
       }
     } else {
diff --git a/modules/gallery/tests/Access_Helper_Test.php b/modules/gallery/tests/Access_Helper_Test.php
index e9e5cb26..d90d7ed6 100644
--- a/modules/gallery/tests/Access_Helper_Test.php
+++ b/modules/gallery/tests/Access_Helper_Test.php
@@ -106,15 +106,15 @@ class Access_Helper_Test extends Unit_Test_Case {
     $item = album::create($root,  rand(), "test album");
 
     // New rows exist
-    $this->assert_true(ORM::factory("access_cache")->where("item_id", $item->id)->find()->loaded);
-    $this->assert_true(ORM::factory("access_intent")->where("item_id", $item->id)->find()->loaded);
+    $this->assert_true(ORM::factory("access_cache")->where("item_id", $item->id)->find()->loaded());
+    $this->assert_true(ORM::factory("access_intent")->where("item_id", $item->id)->find()->loaded());
 
     // Delete the item
     $item->delete();
 
     // Rows are gone
-    $this->assert_false(ORM::factory("access_cache")->where("item_id", $item->id)->find()->loaded);
-    $this->assert_false(ORM::factory("access_intent")->where("item_id", $item->id)->find()->loaded);
+    $this->assert_false(ORM::factory("access_cache")->where("item_id", $item->id)->find()->loaded());
+    $this->assert_false(ORM::factory("access_intent")->where("item_id", $item->id)->find()->loaded());
   }
 
   public function new_photos_inherit_parent_permissions_test() {
diff --git a/modules/gallery/views/kohana_error_page.php b/modules/gallery/views/kohana_error_page.php
index 0d8801e5..b9fdcc19 100644
--- a/modules/gallery/views/kohana_error_page.php
+++ b/modules/gallery/views/kohana_error_page.php
@@ -120,7 +120,7 @@
       <? else: ?>
       <? $trace = $PHP_ERROR ? array_slice(debug_backtrace(), 1) : $exception->getTraceAsString(); ?>
       <? if (!empty($trace)): ?>
-      <? Kohana::Log("error", print_r($trace, 1)); ?>
+      <? Kohana_Log::add("error", print_r($trace, 1)); ?>
       <? endif ?>
       <? endif ?>
   </body>
diff --git a/modules/notification/helpers/notification.php b/modules/notification/helpers/notification.php
index 9a40b0b9..d525e03e 100644
--- a/modules/notification/helpers/notification.php
+++ b/modules/notification/helpers/notification.php
@@ -38,7 +38,7 @@ class notification {
       ->where("item_id", $item->id)
       ->where("user_id", $user->id)
       ->find()
-      ->loaded;
+      ->loaded();
   }
 
   static function add_watch($item, $user=null) {
diff --git a/modules/notification/helpers/notification_event.php b/modules/notification/helpers/notification_event.php
index 6b2df574..e6d09d74 100644
--- a/modules/notification/helpers/notification_event.php
+++ b/modules/notification/helpers/notification_event.php
@@ -25,8 +25,8 @@ class notification_event_Core {
     try {
       notification::send_item_updated($new);
     } catch (Exception $e) {
-      Kohana::log("error", "@todo notification_event::item_updated() failed");
-      Kohana::Log("error", $e->getMessage() . "\n" . $e->getTraceAsString());
+      Kohana_Log::add("error", "@todo notification_event::item_updated() failed");
+      Kohana_Log::add("error", $e->getMessage() . "\n" . $e->getTraceAsString());
     }
   }
 
@@ -34,8 +34,8 @@ class notification_event_Core {
     try {
       notification::send_item_add($item);
     } catch (Exception $e) {
-      Kohana::log("error", "@todo notification_event::item_created() failed");
-      Kohana::Log("error", $e->getMessage() . "\n" . $e->getTraceAsString());
+      Kohana_Log::add("error", "@todo notification_event::item_created() failed");
+      Kohana_Log::add("error", $e->getMessage() . "\n" . $e->getTraceAsString());
     }
   }
 
@@ -47,8 +47,8 @@ class notification_event_Core {
         notification::remove_watch($item);
       }
     } catch (Exception $e) {
-      Kohana::log("error", "@todo notification_event::item_deleted() failed");
-      Kohana::Log("error", $e->getMessage() . "\n" . $e->getTraceAsString());
+      Kohana_Log::add("error", "@todo notification_event::item_deleted() failed");
+      Kohana_Log::add("error", $e->getMessage() . "\n" . $e->getTraceAsString());
     }
   }
 
@@ -69,8 +69,8 @@ class notification_event_Core {
         notification::send_comment_published($comment);
       }
     } catch (Exception $e) {
-      Kohana::log("error", "@todo notification_event::comment_created() failed");
-      Kohana::Log("error", $e->getMessage() . "\n" . $e->getTraceAsString());
+      Kohana_Log::add("error", "@todo notification_event::comment_created() failed");
+      Kohana_Log::add("error", $e->getMessage() . "\n" . $e->getTraceAsString());
     }
   }
 
@@ -80,8 +80,8 @@ class notification_event_Core {
         notification::send_comment_published($new);
       }
     } catch (Exception $e) {
-      Kohana::log("error", "@todo notification_event::comment_updated() failed");
-      Kohana::Log("error", $e->getMessage() . "\n" . $e->getTraceAsString());
+      Kohana_Log::add("error", "@todo notification_event::comment_updated() failed");
+      Kohana_Log::add("error", $e->getMessage() . "\n" . $e->getTraceAsString());
     }
   }
 
@@ -91,8 +91,8 @@ class notification_event_Core {
         ->where("user_id", $user->id)
         ->delete_all();
     } catch (Exception $e) {
-      Kohana::log("error", "@todo notification_event::user_before_delete() failed");
-      Kohana::Log("error", $e->getMessage() . "\n" . $e->getTraceAsString());
+      Kohana_Log::add("error", "@todo notification_event::user_before_delete() failed");
+      Kohana_Log::add("error", $e->getMessage() . "\n" . $e->getTraceAsString());
     }
   }
 
@@ -100,8 +100,8 @@ class notification_event_Core {
     try {
       notification::send_pending_notifications();
     } catch (Exception $e) {
-      Kohana::log("error", "@todo notification_event::batch_complete() failed");
-      Kohana::Log("error", $e->getMessage() . "\n" . $e->getTraceAsString());
+      Kohana_Log::add("error", "@todo notification_event::batch_complete() failed");
+      Kohana_Log::add("error", $e->getMessage() . "\n" . $e->getTraceAsString());
     }
   }
 
diff --git a/modules/search/helpers/search.php b/modules/search/helpers/search.php
index 8c3bd3ab..9d732c11 100644
--- a/modules/search/helpers/search.php
+++ b/modules/search/helpers/search.php
@@ -61,7 +61,7 @@ class search_Core {
   static function update($item) {
     $data = new ArrayObject();
     $record = ORM::factory("search_record")->where("item_id", $item->id)->find();
-    if (!$record->loaded) {
+    if (!$record->loaded()) {
       $record->item_id = $item->id;
     }
 
diff --git a/modules/server_add/controllers/server_add.php b/modules/server_add/controllers/server_add.php
index 53a3d091..25961129 100644
--- a/modules/server_add/controllers/server_add.php
+++ b/modules/server_add/controllers/server_add.php
@@ -103,7 +103,7 @@ class Server_Add_Controller extends Admin_Controller {
     access::verify_csrf();
 
     $task = ORM::factory("task", $task_id);
-    if (!$task->loaded || $task->owner_id != identity::active_user()->id) {
+    if (!$task->loaded() || $task->owner_id != identity::active_user()->id) {
       access::forbidden();
     }
 
@@ -216,7 +216,7 @@ class Server_Add_Controller extends Admin_Controller {
         // Look up the parent item for this entry.  By now it should exist, but if none was
         // specified, then this belongs as a child of the current item.
         $parent_entry = ORM::factory("server_add_file", $entry->parent_id);
-        if (!$parent_entry->loaded) {
+        if (!$parent_entry->loaded()) {
           $parent = ORM::factory("item", $task->get("item_id"));
         } else {
           $parent = ORM::factory("item", $parent_entry->item_id);
diff --git a/modules/tag/controllers/admin_tags.php b/modules/tag/controllers/admin_tags.php
index 67587c2e..93b51814 100644
--- a/modules/tag/controllers/admin_tags.php
+++ b/modules/tag/controllers/admin_tags.php
@@ -35,7 +35,7 @@ class Admin_Tags_Controller extends Admin_Controller {
 
   public function form_delete($id) {
     $tag = ORM::factory("tag", $id);
-    if ($tag->loaded) {
+    if ($tag->loaded()) {
       print tag::get_delete_form($tag);
     }
   }
@@ -44,7 +44,7 @@ class Admin_Tags_Controller extends Admin_Controller {
     access::verify_csrf();
 
     $tag = ORM::factory("tag", $id);
-    if (!$tag->loaded) {
+    if (!$tag->loaded()) {
       kohana::show_404();
     }
 
@@ -68,7 +68,7 @@ class Admin_Tags_Controller extends Admin_Controller {
 
   public function form_rename($id) {
     $tag = ORM::factory("tag", $id);
-    if ($tag->loaded) {
+    if ($tag->loaded()) {
       print InPlaceEdit::factory($tag->name)
         ->action("admin/tags/rename/$id")
         ->render();
@@ -79,7 +79,7 @@ class Admin_Tags_Controller extends Admin_Controller {
     access::verify_csrf();
 
     $tag = ORM::factory("tag", $id);
-    if (!$tag->loaded) {
+    if (!$tag->loaded()) {
       kohana::show_404();
     }
 
diff --git a/modules/tag/helpers/tag.php b/modules/tag/helpers/tag.php
index feaf40c5..6ce18625 100644
--- a/modules/tag/helpers/tag.php
+++ b/modules/tag/helpers/tag.php
@@ -34,7 +34,7 @@ class tag_Core {
     }
 
     $tag = ORM::factory("tag")->where("name", $tag_name)->find();
-    if (!$tag->loaded) {
+    if (!$tag->loaded()) {
       $tag->name = $tag_name;
       $tag->count = 0;
       $tag->save();
diff --git a/modules/tag/helpers/tag_event.php b/modules/tag/helpers/tag_event.php
index a857a99d..6ee8e708 100644
--- a/modules/tag/helpers/tag_event.php
+++ b/modules/tag/helpers/tag_event.php
@@ -51,7 +51,7 @@ class tag_event_Core {
       try {
         tag::add($photo, $tag);
       } catch (Exception $e) {
-        Kohana::log("error", "Error adding tag: $tag\n" .
+        Kohana_Log::add("error", "Error adding tag: $tag\n" .
                     $e->getMessage() . "\n" . $e->getTraceAsString());
       }
     }
diff --git a/modules/tag/helpers/tag_rss.php b/modules/tag/helpers/tag_rss.php
index de5d6c72..03017dc3 100644
--- a/modules/tag/helpers/tag_rss.php
+++ b/modules/tag/helpers/tag_rss.php
@@ -31,7 +31,7 @@ class tag_rss_Core {
   static function feed($feed_id, $offset, $limit, $id) {
     if ($feed_id == "tag") {
       $tag = ORM::factory("tag", $id);
-      if (!$tag->loaded) {
+      if (!$tag->loaded()) {
         Kohana::show_404();
       }
       $feed->children = $tag->items($limit, $offset, "photo");
diff --git a/modules/user/controllers/admin_users.php b/modules/user/controllers/admin_users.php
index b3284385..619e6e18 100644
--- a/modules/user/controllers/admin_users.php
+++ b/modules/user/controllers/admin_users.php
@@ -265,7 +265,7 @@ class Admin_Users_Controller extends Admin_Controller {
     if ($valid) {
       $new_name = $form->edit_group->inputs["name"]->value;
       $group = group::lookup_by_name($name);
-      if ($group->loaded) {
+      if ($group->loaded()) {
         $form->edit_group->inputs["name"]->add_error("in_use", 1);
         $valid = false;
       }
diff --git a/modules/user/controllers/password.php b/modules/user/controllers/password.php
index e18e76b6..8309d2cc 100644
--- a/modules/user/controllers/password.php
+++ b/modules/user/controllers/password.php
@@ -47,7 +47,7 @@ class Password_Controller extends Controller {
     $valid = $form->validate();
     if ($valid) {
       $user = user::lookup_by_name($form->reset->inputs["name"]->value);
-      if (!$user->loaded || empty($user->email)) {
+      if (!$user->loaded() || empty($user->email)) {
         $form->reset->inputs["name"]->add_error("no_email", 1);
         $valid = false;
       }
diff --git a/modules/user/helpers/group.php b/modules/user/helpers/group.php
index 3aaf1b11..1beaa1c2 100644
--- a/modules/user/helpers/group.php
+++ b/modules/user/helpers/group.php
@@ -32,7 +32,7 @@ class group_Core {
    */
   static function create($name) {
     $group = ORM::factory("group")->where("name", $name)->find();
-    if ($group->loaded) {
+    if ($group->loaded()) {
       throw new Exception("@todo GROUP_ALREADY_EXISTS $name");
     }
 
@@ -86,7 +86,7 @@ class group_Core {
   private static function _lookup_by_field($field_name, $value) {
     try {
       $user = model_cache::get("group", $value, $field_name);
-      if ($user->loaded) {
+      if ($user->loaded()) {
         return $user;
       }
     } catch (Exception $e) {
diff --git a/modules/user/helpers/user.php b/modules/user/helpers/user.php
index f9f16da5..4ed9daee 100644
--- a/modules/user/helpers/user.php
+++ b/modules/user/helpers/user.php
@@ -45,7 +45,7 @@ class user_Core {
    */
   static function create($name, $full_name, $password) {
     $user = ORM::factory("user")->where("name", $name)->find();
-    if ($user->loaded) {
+    if ($user->loaded()) {
       throw new Exception("@todo USER_ALREADY_EXISTS $name");
     }
 
@@ -163,7 +163,7 @@ class user_Core {
   private static function _lookup_user_by_field($field_name, $value) {
     try {
       $user = model_cache::get("user", $value, $field_name);
-      if ($user->loaded) {
+      if ($user->loaded()) {
         return $user;
       }
     } catch (Exception $e) {
diff --git a/modules/user/models/group.php b/modules/user/models/group.php
index 4432fc69..81f779cf 100644
--- a/modules/user/models/group.php
+++ b/modules/user/models/group.php
@@ -34,7 +34,7 @@ class Group_Model extends ORM implements Group_Definition {
   }
 
   public function save() {
-    if (!$this->loaded) {
+    if (!$this->loaded()) {
         $created = 1;
     }
     parent::save();
diff --git a/modules/user/models/user.php b/modules/user/models/user.php
index bd61def8..0d5a2bcd 100644
--- a/modules/user/models/user.php
+++ b/modules/user/models/user.php
@@ -62,7 +62,7 @@ class User_Model extends ORM implements User_Definition {
   }
 
   public function save() {
-    if (!$this->loaded) {
+    if (!$this->loaded()) {
         $created = 1;
     }
     parent::save();
diff --git a/modules/user/tests/User_Groups_Test.php b/modules/user/tests/User_Groups_Test.php
index 3da8dd34..6aedfde5 100644
--- a/modules/user/tests/User_Groups_Test.php
+++ b/modules/user/tests/User_Groups_Test.php
@@ -22,14 +22,14 @@ class User_Groups_Test extends Unit_Test_Case {
   public function teardown() {
     try {
       $group = ORM::factory("group")->where("name", "user_groups_test")->find();
-      if ($group->loaded) {
+      if ($group->loaded()) {
         $group->delete();
       }
     } catch (Exception $e) { }
 
     try {
       $user = ORM::factory("user")->where("name", "user_groups_test")->find();
-      if ($user->loaded) {
+      if ($user->loaded()) {
         $user->delete();
       }
     } catch (Exception $e) { }