Initial commit

Signed-off-by: Florian Pritz <bluewind@xssn.at>

1 files changed, 146 insertions, 0 deletions

diff --git a/system/database/DB.php b/system/database/DB.php
new file mode 100644
index 000000000..0f734d748
--- /dev/null
+++ b/system/database/DB.php
@@ -0,0 +1,146 @@
+<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package		CodeIgniter
+ * @author		ExpressionEngine Dev Team
+ * @copyright	Copyright (c) 2008 - 2009, EllisLab, Inc.
+ * @license		http://codeigniter.com/user_guide/license.html
+ * @link		http://codeigniter.com
+ * @since		Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * Initialize the database
+ *
+ * @category	Database
+ * @author		ExpressionEngine Dev Team
+ * @link		http://codeigniter.com/user_guide/database/
+ */
+function &DB($params = '', $active_record_override = FALSE)
+{
+	// Load the DB config file if a DSN string wasn't passed
+	if (is_string($params) AND strpos($params, '://') === FALSE)
+	{
+		include(APPPATH.'config/database'.EXT);
+		
+		if ( ! isset($db) OR count($db) == 0)
+		{
+			show_error('No database connection settings were found in the database config file.');
+		}
+		
+		if ($params != '')
+		{
+			$active_group = $params;
+		}
+		
+		if ( ! isset($active_group) OR ! isset($db[$active_group]))
+		{
+			show_error('You have specified an invalid database connection group.');
+		}
+		
+		$params = $db[$active_group];
+	}
+	elseif (is_string($params))
+	{
+		
+		/* parse the URL from the DSN string
+		*  Database settings can be passed as discreet
+	 	*  parameters or as a data source name in the first
+	 	*  parameter. DSNs must have this prototype:
+	 	*  $dsn = 'driver://username:password@hostname/database';
+		*/
+	
+		if (($dns = @parse_url($params)) === FALSE)
+		{
+			show_error('Invalid DB Connection String');
+		}
+		
+		$params = array(
+							'dbdriver'	=> $dns['scheme'],
+							'hostname'	=> (isset($dns['host'])) ? rawurldecode($dns['host']) : '',
+							'username'	=> (isset($dns['user'])) ? rawurldecode($dns['user']) : '',
+							'password'	=> (isset($dns['pass'])) ? rawurldecode($dns['pass']) : '',
+							'database'	=> (isset($dns['path'])) ? rawurldecode(substr($dns['path'], 1)) : ''
+						);
+		
+		// were additional config items set?
+		if (isset($dns['query']))
+		{
+			parse_str($dns['query'], $extra);
+
+			foreach($extra as $key => $val)
+			{
+				// booleans please
+				if (strtoupper($val) == "TRUE")
+				{
+					$val = TRUE;
+				}
+				elseif (strtoupper($val) == "FALSE")
+				{
+					$val = FALSE;
+				}
+
+				$params[$key] = $val;
+			}
+		}
+	}
+	
+	// No DB specified yet?  Beat them senseless...
+	if ( ! isset($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_override == TRUE)
+	{
+		$active_record = TRUE;
+	}
+	
+	require_once(BASEPATH.'database/DB_driver'.EXT);
+
+	if ( ! isset($active_record) OR $active_record == TRUE)
+	{
+		require_once(BASEPATH.'database/DB_active_rec'.EXT);
+		
+		if ( ! class_exists('CI_DB'))
+		{
+			eval('class CI_DB extends CI_DB_active_record { }');
+		}
+	}
+	else
+	{
+		if ( ! class_exists('CI_DB'))
+		{
+			eval('class CI_DB extends CI_DB_driver { }');
+		}
+	}
+			
+	require_once(BASEPATH.'database/drivers/'.$params['dbdriver'].'/'.$params['dbdriver'].'_driver'.EXT);
+
+	// Instantiate the DB adapter
+	$driver = 'CI_DB_'.$params['dbdriver'].'_driver';
+	$DB =& instantiate_class(new $driver($params));
+	
+	if ($DB->autoinit == TRUE)
+	{
+		$DB->initialize();
+	}
+	
+	return $DB;
+}	
+
+
+
+/* End of file DB.php */
+/* Location: ./system/database/DB.php */
\ No newline at end of file