diff options
Diffstat (limited to 'system/database/DB_driver.php')
| -rw-r--r-- | system/database/DB_driver.php | 99 |
1 files changed, 77 insertions, 22 deletions
diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php index f3e824daa..9d92f2f87 100644 --- a/system/database/DB_driver.php +++ b/system/database/DB_driver.php @@ -4,10 +4,22 @@ * * An open source application development framework for PHP 5.1.6 or newer * + * NOTICE OF LICENSE + * + * Licensed under the Open Software License version 3.0 + * + * This source file is subject to the Open Software License (OSL 3.0) that is + * bundled with this package in the files license.txt / license.rst. It is + * also available through the world wide web at this URL: + * http://opensource.org/licenses/OSL-3.0 + * If you did not receive a copy of the license and are unable to obtain it + * through the world wide web, please send an email to + * licensing@ellislab.com so we can send you a copy immediately. + * * @package CodeIgniter - * @author ExpressionEngine Dev Team - * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. - * @license http://codeigniter.com/user_guide/license.html + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. (http://ellislab.com/) + * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0) * @link http://codeigniter.com * @since Version 1.0 * @filesource @@ -25,7 +37,7 @@ * @package CodeIgniter * @subpackage Drivers * @category Database - * @author ExpressionEngine Dev Team + * @author EllisLab Dev Team * @link http://codeigniter.com/user_guide/database/ */ class CI_DB_driver { @@ -78,7 +90,7 @@ class CI_DB_driver { * * @param array */ - function CI_DB_driver($params) + function __construct($params) { if (is_array($params)) { @@ -114,16 +126,43 @@ class CI_DB_driver { // Connect to the database and set the connection ID $this->conn_id = ($this->pconnect == FALSE) ? $this->db_connect() : $this->db_pconnect(); - // No connection resource? Throw an error + // No connection resource? Check if there is a failover else throw an error if ( ! $this->conn_id) { - log_message('error', 'Unable to connect to the database'); + // Check if there is a failover set + if ( ! empty($this->failover) && is_array($this->failover)) + { + // Go over all the failovers + foreach ($this->failover as $failover) + { + // Replace the current settings with those of the failover + foreach ($failover as $key => $val) + { + $this->$key = $val; + } - if ($this->db_debug) + // Try to connect + $this->conn_id = ($this->pconnect == FALSE) ? $this->db_connect() : $this->db_pconnect(); + + // If a connection is made break the foreach loop + if ($this->conn_id) + { + break; + } + } + } + + // We still don't have a connection? + if ( ! $this->conn_id) { - $this->display_error('db_unable_to_connect'); + log_message('error', 'Unable to connect to the database'); + + if ($this->db_debug) + { + $this->display_error('db_unable_to_connect'); + } + return FALSE; } - return FALSE; } // ---------------------------------------------------------------- @@ -218,7 +257,7 @@ class CI_DB_driver { // Some DBs have functions that return the version, and don't run special // SQL queries per se. In these instances, just return the result. - $driver_version_exceptions = array('oci8', 'sqlite', 'cubrid'); + $driver_version_exceptions = array('oci8', 'sqlite', 'cubrid', 'pdo'); if (in_array($this->dbdriver, $driver_version_exceptions)) { @@ -251,9 +290,10 @@ class CI_DB_driver { { if ($sql == '') { + log_message('error', 'Invalid query: '.$sql); + if ($this->db_debug) { - log_message('error', 'Invalid query: '.$sql); return $this->display_error('db_invalid_query'); } return FALSE; @@ -306,21 +346,23 @@ class CI_DB_driver { // This will trigger a rollback if transactions are being used $this->_trans_status = FALSE; + // Grab the error number and message now, as we might run some + // additional queries before displaying the error + $error_no = $this->_error_number(); + $error_msg = $this->_error_message(); + + // Log errors + log_message('error', 'Query error: '.$error_msg); + if ($this->db_debug) { - // grab the error number and message now, as we might run some - // additional queries before displaying the error - $error_no = $this->_error_number(); - $error_msg = $this->_error_message(); - // We call this function in order to roll-back queries // if transactions are enabled. If we don't call this here // the error message will trigger an exit, causing the // transactions to remain in limbo. $this->trans_complete(); - // Log and display errors - log_message('error', 'Query error: '.$error_msg); + // Display errors return $this->display_error( array( 'Error Number: '.$error_no, @@ -507,6 +549,7 @@ class CI_DB_driver { } $this->trans_begin($test_mode); + $this->_trans_depth += 1; } // -------------------------------------------------------------------- @@ -530,6 +573,10 @@ class CI_DB_driver { $this->_trans_depth -= 1; return TRUE; } + else + { + $this->_trans_depth = 0; + } // The query() function will set this flag to FALSE in the event that a query failed if ($this->_trans_status === FALSE) @@ -947,6 +994,7 @@ class CI_DB_driver { foreach ($where as $key => $val) { $prefix = (count($dest) == 0) ? '' : ' AND '; + $key = $this->_protect_identifiers($key); if ($val !== '') { @@ -1016,7 +1064,14 @@ class CI_DB_driver { { $args = (func_num_args() > 1) ? array_splice(func_get_args(), 1) : null; - return call_user_func_array($function, $args); + if (is_null($args)) + { + return call_user_func($function); + } + else + { + return call_user_func_array($function, $args); + } } } @@ -1162,7 +1217,7 @@ class CI_DB_driver { if ($native == TRUE) { - $message = $error; + $message = (array) $error; } else { @@ -1387,4 +1442,4 @@ class CI_DB_driver { /* End of file DB_driver.php */ -/* Location: ./system/database/DB_driver.php */
\ No newline at end of file +/* Location: ./system/database/DB_driver.php */ |