| Derek Allard | d2df9bc | 2007-04-15 17:41:17 +0000 | [diff] [blame] | 1 | <?php if (!defined('BASEPATH')) exit('No direct script access allowed');
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| 2 | /**
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| 3 | * CodeIgniter
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| 4 | *
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| 5 | * An open source application development framework for PHP 4.3.2 or newer
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| 6 | *
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| 7 | * @package CodeIgniter
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| 8 | * @author Rick Ellis
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| 9 | * @copyright Copyright (c) 2006, EllisLab, Inc.
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| 10 | * @license http://www.codeignitor.com/user_guide/license.html
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| 11 | * @link http://www.codeigniter.com
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| 12 | * @since Version 1.0
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| 13 | * @filesource
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| 14 | */
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| 15 |
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| 16 | // ------------------------------------------------------------------------
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| 17 |
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| 18 | /**
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| 19 | * Initialize the database
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| 20 | *
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| 21 | * @category Database
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| 22 | * @author Rick Ellis
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| 23 | * @link http://www.codeigniter.com/user_guide/database/
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| 24 | */
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| 25 | function &DB($params = '', $active_record = FALSE)
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| 26 | {
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| 27 | // Load the DB config file if a DSN string wasn't passed
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| 28 | if (is_string($params) AND strpos($params, '://') === FALSE)
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| 29 | {
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| 30 | include(APPPATH.'config/database'.EXT);
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| 31 |
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| 32 | $group = ($params == '') ? $active_group : $params;
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| 33 |
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| 34 | if ( ! isset($db[$group]))
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| 35 | {
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| 36 | show_error('You have specified an invalid database connection group: '.$group);
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| 37 | }
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| 38 |
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| 39 | $params = $db[$group];
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| 40 | }
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| 41 |
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| 42 | // No DB specified yet? Beat them senseless...
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| 43 | if ( ! isset($params['dbdriver']) OR $params['dbdriver'] == '')
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| 44 | {
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| 45 | show_error('You have not selected a database type to connect to.');
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| 46 | }
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| 47 |
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| 48 | // Load the DB classes. Note: Since the active record class is optional
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| 49 | // we need to dynamically create a class that extends proper parent class
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| 50 | // based on whether we're using the active record class or not.
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| 51 | // Kudos to Paul for discovering this clever use of eval()
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| 52 |
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| 53 | if ($active_record == TRUE)
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| 54 | {
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| 55 | $params['active_r'] = TRUE;
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| 56 | }
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| 57 |
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| 58 | require_once(BASEPATH.'database/DB_driver'.EXT);
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| 59 |
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| 60 | if ( ! isset($params['active_r']) OR $params['active_r'] == TRUE)
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| 61 | {
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| 62 | require_once(BASEPATH.'database/DB_active_rec'.EXT);
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| 63 |
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| 64 | if ( ! class_exists('CI_DB'))
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| 65 | {
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| 66 | eval('class CI_DB extends CI_DB_active_record { }');
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| 67 | }
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| 68 | }
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| 69 | else
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| 70 | {
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| 71 | if ( ! class_exists('CI_DB'))
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| 72 | {
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| 73 | eval('class CI_DB extends CI_DB_driver { }');
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| 74 | }
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| 75 | }
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| 76 |
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| 77 | require_once(BASEPATH.'database/drivers/'.$params['dbdriver'].'/'.$params['dbdriver'].'_driver'.EXT);
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| 78 |
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| 79 | // Instantiate the DB adapter
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| 80 | $driver = 'CI_DB_'.$params['dbdriver'].'_driver';
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| 81 | $DB =& new $driver($params);
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| 82 | return $DB;
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| 83 | }
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| 84 |
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| 85 |
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| admin | 61c5717 | 2006-10-06 17:29:24 +0000 | [diff] [blame] | 86 | ?> |