From 1a685474e698ce3e90dbae87f6a1f83966d9ef63 Mon Sep 17 00:00:00 2001
From: Angie Byron <webchick@24967.no-reply.drupal.org>
Date: Mon, 29 Nov 2010 04:45:11 +0000
Subject: #851136 by Crell, chx, Damien Tournoud: Make the database autoloading
 more robust.

---
 includes/install.inc | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

(limited to 'includes/install.inc')

diff --git a/includes/install.inc b/includes/install.inc
index 2c9810a08..1b7d7a796 100644
--- a/includes/install.inc
+++ b/includes/install.inc
@@ -254,7 +254,6 @@ function drupal_get_database_types() {
   // Because we have no registry yet, we need to also include the install.inc
   // file for the driver explicitly.
   require_once DRUPAL_ROOT . '/includes/database/database.inc';
-  spl_autoload_register('db_autoload');
   foreach (file_scan_directory(DRUPAL_ROOT . '/includes/database', '/^[a-z]*$/i', array('recurse' => FALSE)) as $file) {
     if (file_exists($file->uri . '/database.inc') && file_exists($file->uri . '/install.inc')) {
       $drivers[$file->filename] = $file->uri;
@@ -262,8 +261,7 @@ function drupal_get_database_types() {
   }
 
   foreach ($drivers as $driver => $file) {
-    $class = 'DatabaseTasks_' . $driver;
-    $installer = new $class();
+    $installer = db_installer_object($driver);
     if ($installer->installable()) {
       $databases[$driver] = $installer;
     }
@@ -1248,8 +1246,18 @@ function install_profile_info($profile, $locale = 'en') {
  * encoding.
  */
 function db_run_tasks($driver) {
-  $task_class = 'DatabaseTasks_' . $driver;
-  $DatabaseTasks = new $task_class();
-  $DatabaseTasks->runTasks();
+  db_installer_object($driver)->runTasks();
   return TRUE;
 }
+
+/**
+ * Returns a database installer object.
+ *
+ * @param $driver
+ *   The name of the driver.
+ */
+function db_installer_object($driver) {
+  Database::loadDriverFile($driver, array('install.inc'));
+  $task_class = 'DatabaseTasks_' . $driver;
+  return new $task_class();
+}
-- 
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