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jfr.im git - z_archive/KronOS.git/blob - system/database/DB.php
8314d3b97dca2a858e6b0193be54c9f89e2076db
1 <?php
if ( ! defined('BASEPATH')) exit('No direct script access allowed');
5 * An open source application development framework for PHP 5.1.6 or newer
8 * @author ExpressionEngine Dev Team
9 * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc.
10 * @license http://codeigniter.com/user_guide/license.html
11 * @link http://codeigniter.com
16 // ------------------------------------------------------------------------
19 * Initialize the database
22 * @author ExpressionEngine Dev Team
23 * @link http://codeigniter.com/user_guide/database/
25 * @param bool Determines if active record should be used or not
27 function &DB($params = '', $active_record_override = NULL)
29 // Load the DB config file if a DSN string wasn't passed
30 if (is_string($params) AND strpos($params, '://') === FALSE)
32 // Is the config file in the environment folder?
33 if ( ! defined('ENVIRONMENT') OR ! file_exists($file_path = APPPATH
.'config/'.ENVIRONMENT
.'/database.php'))
35 if ( ! file_exists($file_path = APPPATH
.'config/database.php'))
37 show_error('The configuration file database.php does not exist.');
43 if ( ! isset($db) OR count($db) == 0)
45 show_error('No database connection settings were found in the database config file.');
50 $active_group = $params;
53 if ( ! isset($active_group) OR ! isset($db[$active_group]))
55 show_error('You have specified an invalid database connection group.');
58 $params = $db[$active_group];
60 elseif (is_string($params))
63 /* parse the URL from the DSN string
64 * Database settings can be passed as discreet
65 * parameters or as a data source name in the first
66 * parameter. DSNs must have this prototype:
67 * $dsn = 'driver://username:password@hostname/database';
70 if (($dns = @parse_url($params)) === FALSE)
72 show_error('Invalid DB Connection String');
76 'dbdriver' => $dns['scheme'],
77 'hostname' => (isset($dns['host'])) ? rawurldecode($dns['host']) : '',
78 'username' => (isset($dns['user'])) ? rawurldecode($dns['user']) : '',
79 'password' => (isset($dns['pass'])) ? rawurldecode($dns['pass']) : '',
80 'database' => (isset($dns['path'])) ? rawurldecode(substr($dns['path'], 1)) : ''
83 // were additional config items set?
84 if (isset($dns['query']))
86 parse_str($dns['query'], $extra);
88 foreach ($extra as $key => $val)
91 if (strtoupper($val) == "TRUE")
95 elseif (strtoupper($val) == "FALSE")
100 $params[$key] = $val;
105 // No DB specified yet? Beat them senseless...
106 if ( ! isset($params['dbdriver']) OR $params['dbdriver'] == '')
108 show_error('You have not selected a database type to connect to.');
111 // Load the DB classes. Note: Since the active record class is optional
112 // we need to dynamically create a class that extends proper parent class
113 // based on whether we're using the active record class or not.
114 // Kudos to Paul for discovering this clever use of eval()
116 if ($active_record_override !== NULL)
118 $active_record = $active_record_override;
121 require_once(BASEPATH
.'database/DB_driver.php');
123 if ( ! isset($active_record) OR $active_record == TRUE)
125 require_once(BASEPATH
.'database/DB_active_rec.php');
127 if ( ! class_exists('CI_DB'))
129 eval('class CI_DB extends CI_DB_active_record { }');
134 if ( ! class_exists('CI_DB'))
136 eval('class CI_DB extends CI_DB_driver { }');
140 require_once(BASEPATH
.'database/drivers/'.$params['dbdriver'].'/'.$params['dbdriver'].'_driver.php');
142 // Instantiate the DB adapter
143 $driver = 'CI_DB_'.$params['dbdriver'].'_driver';
144 $DB = new $driver($params);
146 if ($DB->autoinit
== TRUE)
151 if (isset($params['stricton']) && $params['stricton'] == TRUE)
153 $DB->query('SET SESSION sql_mode="STRICT_ALL_TABLES"');
161 /* End of file DB.php */
162 /* Location: ./system/database/DB.php */