1 files changed, 100 insertions, 0 deletions
diff --git a/system/database/DB.php b/system/database/DB.php
new file mode 100644
index 000000000..a60c98e2e
--- /dev/null
+++ b/system/database/DB.php
@@ -0,0 +1,100 @@
+<?php  if (!defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * Code Igniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package		CodeIgniter
+ * @author		Rick Ellis
+ * @copyright	Copyright (c) 2006, pMachine, Inc.
+ * @license		http://www.codeignitor.com/user_guide/license.html 
+ * @link		http://www.codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * Initialize the database
+ *
+ * @category	Database
+ * @author		Rick Ellis
+ * @link		http://www.codeigniter.com/user_guide/database/
+ */
+function DB($params = '', $return = FALSE, $active_record = FALSE)
+{
+	$obj =& get_instance();
+
+	// Do we even need to load the database class?
+	if ($obj->_ci_is_loaded('db') == TRUE AND $return == FALSE AND $active_record == FALSE)
+	{
+		return FALSE;
+	}
+
+	// Load the DB config file if a DSN string wasn't passed
+	if (is_string($params) AND strpos($params, '://') === FALSE)
+	{
+		include(APPPATH.'config/database'.EXT);
+		
+		$group = ($params == '') ? $active_group : $params;
+		
+		if ( ! isset($db[$group]))
+		{
+			show_error('You have specified an invalid database connection group: '.$group);
+		}
+		
+		$params = $db[$group];
+	}
+	
+	// No DB specified yet?  Beat them senseless...
+	if ( ! isset($params['dbdriver']) OR $params['dbdriver'] == '')
+	{
+		show_error('You have not selected a database type to connect to.');
+	}
+
+	// Load the DB classes.  Note: Since the active record class is optional
+	// we need to dynamically create a class that extends proper parent class 
+	// based on whether we're using the active record class or not.
+	// Kudos to Paul for discovering this clever use of eval()
+	
+	if ($active_record == TRUE)
+	{
+		$params['active_r'] = TRUE;
+	}
+	
+	require_once(BASEPATH.'database/DB_driver'.EXT);
+
+	if ( ! isset($params['active_r']) OR $params['active_r'] == TRUE) 
+	{
+		require_once(BASEPATH.'database/DB_active_rec'.EXT);
+		
+		if ( ! class_exists('CI_DB'))
+		{
+			eval('class CI_DB extends CI_DB_active_record { }');
+		}
+	}
+	else
+	{
+		if ( ! class_exists('CI_DB'))
+		{
+			eval('class CI_DB extends CI_DB_driver { }');
+		}
+	}
+			
+	require_once(BASEPATH.'database/drivers/'.$params['dbdriver'].'/'.$params['dbdriver'].'_driver'.EXT);
+
+	// Instantiate the DB adapter
+	$driver = 'CI_DB_'.$params['dbdriver'].'_driver';
+	$DB = new $driver($params);
+	
+	if ($return === TRUE)
+	{
+		return $DB;
+	}
+	
+	$obj->db =& $DB;
+}	
+
+
+?>
+\ No newline at end of file