From 130e26983aedac1e4bb9f26d6a82c629248075e8 Mon Sep 17 00:00:00 2001
From: Bharat Mediratta <bharat@menalto.com>
Date: Wed, 17 Dec 2008 17:40:45 +0000
Subject: Add initialization to the user module to put the user and group_ids
 into the session, for easy access.  This cuts down the number of queries when
 we're loading images through file_proxy.php

---
 core/helpers/access.php             |  4 ++--
 core/helpers/module.php             |  6 ++++--
 modules/user/helpers/user.php       | 38 ++++++++++++++++++++++++++++++++-----
 modules/user/helpers/user_event.php | 27 ++++++++++++++++++++++++++
 4 files changed, 66 insertions(+), 9 deletions(-)
 create mode 100644 modules/user/helpers/user_event.php

diff --git a/core/helpers/access.php b/core/helpers/access.php
index 05799bf5..82d7b9b6 100644
--- a/core/helpers/access.php
+++ b/core/helpers/access.php
@@ -98,8 +98,8 @@ class access_Core {
 
     $resource = $perm_name == "view" ?
       $item : model_cache::get("access_cache", $item->id, "item_id");
-    foreach (user::active()->groups as $group) {
-      if ($resource->__get("{$perm_name}_{$group->id}") === self::ALLOW) {
+    foreach (user::group_ids() as $id) {
+      if ($resource->__get("{$perm_name}_$id") === self::ALLOW) {
         return true;
       }
     }
diff --git a/core/helpers/module.php b/core/helpers/module.php
index 02851528..5713901d 100644
--- a/core/helpers/module.php
+++ b/core/helpers/module.php
@@ -117,6 +117,8 @@ class module_Core {
     //
     // @todo get rid of this extra error checking when we have an installer.
     set_error_handler(array("module", "_dummy_error_handler"));
+    $modules = ORM::factory("module")->find_all();
+    restore_error_handler();
 
     // Reload module list from the config file since we'll do a refresh after calling install()
     $core = Kohana::config_load('core');
@@ -124,7 +126,7 @@ class module_Core {
     self::$module_names = array();
     self::$modules = array();
     try {
-      foreach (ORM::factory("module")->find_all() as $module) {
+      foreach ($modules as $module) {
         self::$module_names[] = $module->name;
         self::$modules[] = $module;
         $kohana_modules[] = MODPATH . $module->name;
@@ -136,7 +138,7 @@ class module_Core {
       self::$modules = array();
     }
 
-    restore_error_handler();
+    self::event("gallery_ready");
   }
 
   public function get_var($module_name, $name, $default_value=null) {
diff --git a/modules/user/helpers/user.php b/modules/user/helpers/user.php
index a04542d3..1667afd1 100644
--- a/modules/user/helpers/user.php
+++ b/modules/user/helpers/user.php
@@ -56,12 +56,39 @@ class user_Core {
     return $form;
   }
 
+  /**
+   * Make sure that we have a session and group_ids cached in the session.
+   */
+  public static function load_user() {
+    $session = Session::instance();
+    if (!($user = $session->get("user"))) {
+      $session->set("user", $user = user::guest());
+    }
+
+    if (!$session->get("group_ids")) {
+      $ids = array();
+      foreach ($user->groups as $group) {
+        $ids[] = $group->id;
+      }
+      $session->set("group_ids", $ids);
+    }
+  }
+
+  /**
+   * Return the array of group ids this user belongs to
+   *
+   * @return array
+   */
+  public static function group_ids() {
+    return Session::instance()->get("group_ids", array(1));
+  }
+
   /**
    * Return the active user.  If there's no active user, return the guest user.
    *
    * @return User_Model
    */
-  static function active() {
+  public static function active() {
     return Session::instance()->get("user", self::guest());
   }
 
@@ -72,7 +99,7 @@ class user_Core {
    *
    * @return User_Model
    */
-  static function guest() {
+  public static function guest() {
     return model_cache::get("user", 1);
   }
 
@@ -81,8 +108,9 @@ class user_Core {
    *
    * @return User_Model
    */
-  static function set_active($user) {
-    return Session::instance()->set("user", $user);
+  public static function set_active($user) {
+    Session::instance()->set("user", $user);
+    self::load_user();
   }
 
   /**
@@ -93,7 +121,7 @@ class user_Core {
    * @param string  $password
    * @return User_Model
    */
-  static function create($name, $display_name, $password) {
+  public static function create($name, $display_name, $password) {
     $user = ORM::factory("user")->where("name", $name)->find();
     if ($user->loaded) {
       throw new Exception("@todo USER_ALREADY_EXISTS $name");
diff --git a/modules/user/helpers/user_event.php b/modules/user/helpers/user_event.php
new file mode 100644
index 00000000..2d1ce171
--- /dev/null
+++ b/modules/user/helpers/user_event.php
@@ -0,0 +1,27 @@
+<?php defined("SYSPATH") or die("No direct script access.");
+/**
+ * Gallery - a web based photo album viewer and editor
+ * Copyright (C) 2000-2008 Bharat Mediratta
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+class user_event_Core {
+  /**
+   * Initialization.
+   */
+  public static function gallery_ready() {
+    user::load_user();
+  }
+}
-- 
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