Merge branch 'develop' of github.com:EllisLab/CodeIgniter into feature/db_subdrivers
diff --git a/system/database/DB.php b/system/database/DB.php
index 032cf1b..d751325 100644
--- a/system/database/DB.php
+++ b/system/database/DB.php
@@ -170,6 +170,19 @@
$driver = 'CI_DB_'.$params['dbdriver'].'_driver';
$DB = new $driver($params);
+ // Check for a subdriver
+ if ( ! empty($DB->subdriver))
+ {
+ $driver_file = BASEPATH.'database/drivers/'.$DB->dbdriver.'/subdrivers/'.$DB->dbdriver.'_'.$DB->subdriver.'_driver.php';
+
+ if (file_exists($driver_file))
+ {
+ require_once($driver_file);
+ $driver = 'CI_DB_'.$DB->dbdriver.'_'.$DB->subdriver.'_driver';
+ $DB = new $driver($params);
+ }
+ }
+
if ($DB->autoinit === TRUE)
{
$DB->initialize();
diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php
index 1060ecc..e9efc89 100644
--- a/system/database/DB_driver.php
+++ b/system/database/DB_driver.php
@@ -46,6 +46,7 @@
public $hostname;
public $database;
public $dbdriver = 'mysqli';
+ public $subdriver;
public $dbprefix = '';
public $char_set = 'utf8';
public $dbcollat = 'utf8_general_ci';
diff --git a/system/database/drivers/pdo/pdo_driver.php b/system/database/drivers/pdo/pdo_driver.php
index 38a9fec..b36a3d9 100644
--- a/system/database/drivers/pdo/pdo_driver.php
+++ b/system/database/drivers/pdo/pdo_driver.php
@@ -42,8 +42,8 @@
public $dbdriver = 'pdo';
- // the character used to excape - not necessary for PDO
- protected $_escape_char = '';
+ // The character used to escaping
+ protected $_escape_char = '"';
// clause and character used for LIKE escape sequences
protected $_like_escape_str = " ESCAPE '%s' ";
@@ -51,10 +51,19 @@
protected $_random_keyword;
- // need to track the pdo driver and options
- public $pdodriver;
+ public $trans_enabled = FALSE;
+
+ // need to track the PDO options
public $options = array();
+ /**
+ * Constructor
+ *
+ * Validates the DSN string and/or detects the subdriver
+ *
+ * @param array
+ * @return void
+ */
public function __construct($params)
{
parent::__construct($params);
@@ -63,118 +72,36 @@
{
// If there is a minimum valid dsn string pattern found, we're done
// This is for general PDO users, who tend to have a full DSN string.
- $this->pdodriver = end($match);
+ $this->subdriver = $match[1];
+ return;
}
- else
+ // Legacy support for DSN specified in the hostname field
+ elseif (preg_match('/([^;]+):/', $this->hostname, $match) && count($match) === 2)
{
- // Try to build a complete DSN string from params
- $this->_connect_string($params);
+ $this->dsn = $this->hostname;
+ $this->hostname = NULL;
+ $this->subdriver = $match[1];
+ return;
}
+ elseif (in_array($this->subdriver, array('mssql', 'sybase'), TRUE))
+ {
+ $this->subdriver = 'dblib';
+ }
+ elseif ($this->subdriver === '4D')
+ {
+ $this->subdriver = '4d';
+ }
+ elseif ( ! in_array($this->subdriver, array('4d', 'cubrid', 'dblib', 'firebird', 'ibm', 'informix', 'mysql', 'oci', 'odbc', 'sqlite', 'sqlsrv'), TRUE))
+ {
+ log_message('error', 'PDO: Invalid or non-existent subdriver');
- // clause and character used for LIKE escape sequences
- // this one depends on the driver being used
- if ($this->pdodriver === 'mysql')
- {
- $this->_escape_char = '`';
- $this->_like_escape_str = '';
- $this->_like_escape_chr = '\\';
- }
- elseif ($this->pdodriver === 'odbc')
- {
- $this->_like_escape_str = " {escape '%s'} ";
- }
- elseif ( ! in_array($this->pdodriver, array('sqlsrv', 'mssql', 'dblib', 'sybase')))
- {
- $this->_escape_char = '"';
- }
-
- $this->trans_enabled = FALSE;
- $this->_random_keyword = ' RND('.time().')'; // database specific random keyword
- }
-
- /**
- * Connection String
- *
- * @param array
- * @return void
- */
- protected function _connect_string($params)
- {
- if (strpos($this->hostname, ':'))
- {
- // hostname generally would have this prototype
- // $db['hostname'] = 'pdodriver:host(/Server(/DSN))=hostname(/DSN);';
- // We need to get the prefix (pdodriver used by PDO).
- $dsnarray = explode(':', $this->hostname);
- $this->pdodriver = $dsnarray[0];
-
- // End dsn with a semicolon for extra backward compability
- // if database property was not empty.
- if ( ! empty($this->database))
+ if ($this->db_debug)
{
- $this->dsn .= rtrim($this->hostname, ';').';';
- }
- }
- else
- {
- // Invalid DSN, display an error
- if ( ! array_key_exists('pdodriver', $params))
- {
- show_error('Invalid DB Connection String for PDO');
- }
-
- // Assuming that the following DSN string format is used:
- // $dsn = 'pdo://username:password@hostname:port/database?pdodriver=pgsql';
- $this->dsn = $this->pdodriver.':';
-
- // Add hostname to the DSN for databases that need it
- if ( ! empty($this->hostname)
- && strpos($this->hostname, ':') === FALSE
- && in_array($this->pdodriver, array('informix', 'mysql', 'pgsql', 'sybase', 'mssql', 'dblib', 'cubrid')))
- {
- $this->dsn .= 'host='.$this->hostname.';';
- }
-
- // Add a port to the DSN for databases that can use it
- if ( ! empty($this->port) && in_array($this->pdodriver, array('informix', 'mysql', 'pgsql', 'ibm', 'cubrid')))
- {
- $this->dsn .= 'port='.$this->port.';';
+ show_error('Invalid or non-existent PDO subdriver');
}
}
- // Add the database name to the DSN, if needed
- if (stripos($this->dsn, 'dbname') === FALSE
- && in_array($this->pdodriver, array('4D', 'pgsql', 'mysql', 'firebird', 'sybase', 'mssql', 'dblib', 'cubrid')))
- {
- $this->dsn .= 'dbname='.$this->database.';';
- }
- elseif (stripos($this->dsn, 'database') === FALSE && in_array($this->pdodriver, array('ibm', 'sqlsrv')))
- {
- if (stripos($this->dsn, 'dsn') === FALSE)
- {
- $this->dsn .= 'database='.$this->database.';';
- }
- }
- elseif ($this->pdodriver === 'sqlite' && $this->dsn === 'sqlite:')
- {
- if ($this->database !== ':memory')
- {
- if ( ! file_exists($this->database))
- {
- show_error('Invalid DB Connection string for PDO SQLite');
- }
-
- $this->dsn .= (strpos($this->database, DIRECTORY_SEPARATOR) !== 0) ? DIRECTORY_SEPARATOR : '';
- }
-
- $this->dsn .= $this->database;
- }
-
- // Add charset to the DSN, if needed
- if ( ! empty($this->char_set) && in_array($this->pdodriver, array('4D', 'mysql', 'sybase', 'mssql', 'dblib', 'oci')))
- {
- $this->dsn .= 'charset='.$this->char_set.';';
- }
+ $this->dsn = NULL;
}
// --------------------------------------------------------------------
@@ -182,11 +109,27 @@
/**
* Non-persistent database connection
*
+ * @param bool
* @return object
*/
- public function db_connect()
+ public function db_connect($persistent = FALSE)
{
- return $this->_pdo_connect();
+ $this->options[PDO::ATTR_PERSISTENT] = $persistent;
+
+ // Connecting...
+ try
+ {
+ return @new PDO($this->dsn, $this->username, $this->password, $this->options);
+ }
+ catch (PDOException $e)
+ {
+ if ($this->db_debug && empty($this->failover))
+ {
+ $this->display_error($e->getMessage(), '', TRUE);
+ }
+
+ return FALSE;
+ }
}
// --------------------------------------------------------------------
@@ -198,47 +141,7 @@
*/
public function db_pconnect()
{
- return $this->_pdo_connect(TRUE);
- }
-
- // --------------------------------------------------------------------
-
- /**
- * PDO connection
- *
- * @param bool
- * @return object
- */
- protected function _pdo_connect($persistent = FALSE)
- {
- $this->options[PDO::ATTR_ERRMODE] = PDO::ERRMODE_SILENT;
- $persistent === FALSE OR $this->options[PDO::ATTR_PERSISTENT] = TRUE;
-
- /* Prior to PHP 5.3.6, even if the charset was supplied in the DSN
- * on connect - it was ignored. This is a work-around for the issue.
- *
- * Reference: http://www.php.net/manual/en/ref.pdo-mysql.connection.php
- */
- if ($this->pdodriver === 'mysql' && ! is_php('5.3.6') && ! empty($this->char_set))
- {
- $this->options[PDO::MYSQL_ATTR_INIT_COMMAND] = 'SET NAMES '.$this->char_set
- .( ! empty($this->db_collat) ? " COLLATE '".$this->dbcollat."'" : '');
- }
-
- // Connecting...
- try
- {
- return new PDO($this->dsn, $this->username, $this->password, $this->options);
- }
- catch (PDOException $e)
- {
- if ($this->db_debug && empty($this->failover))
- {
- $this->display_error($e->getMessage(), '', TRUE);
- }
-
- return FALSE;
- }
+ return $this->db_connect(TRUE);
}
// --------------------------------------------------------------------
@@ -363,7 +266,7 @@
$str = $this->conn_id->quote($str);
// If there are duplicated quotes, trim them away
- if (strpos($str, "'") === 0)
+ if ($str[0] === "'")
{
$str = substr($str, 1, -1);
}
@@ -401,69 +304,12 @@
*/
public function insert_id($name = NULL)
{
- if ($this->pdodriver === 'pgsql' && $name === NULL && $this->version() >= '8.1')
- {
- $query = $this->query('SELECT LASTVAL() AS ins_id');
- $query = $query->row();
- return $query->ins_id;
- }
-
return $this->conn_id->lastInsertId($name);
}
// --------------------------------------------------------------------
/**
- * Show table query
- *
- * Generates a platform-specific query string so that the table names can be fetched
- *
- * @param bool
- * @return string
- */
- protected function _list_tables($prefix_limit = FALSE)
- {
- if ($this->pdodriver === 'pgsql')
- {
- // Analog function to show all tables in postgre
- $sql = "SELECT * FROM information_schema.tables WHERE table_schema = 'public'";
- }
- elseif ($this->pdodriver === 'sqlite')
- {
- // Analog function to show all tables in sqlite
- $sql = "SELECT name FROM sqlite_master WHERE type='table' AND name NOT LIKE 'sqlite_%'";
- }
- else
- {
- $sql = 'SHOW TABLES FROM '.$this->escape_identifiers($this->database);
- }
-
- if ($prefix_limit !== FALSE AND $this->dbprefix !== '')
- {
- return FALSE;
- }
-
- return $sql;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Show column query
- *
- * Generates a platform-specific query string so that the column names can be fetched
- *
- * @param string the table name
- * @return string
- */
- protected function _list_columns($table = '')
- {
- return 'SHOW COLUMNS FROM '.$this->escape_identifiers($table);
- }
-
- // --------------------------------------------------------------------
-
- /**
* Field data query
*
* Generates a platform-specific query so that the column data can be retrieved
@@ -473,23 +319,7 @@
*/
protected function _field_data($table)
{
- if ($this->pdodriver === 'mysql' or $this->pdodriver === 'pgsql')
- {
- // Analog function for mysql and postgre
- return 'SELECT * FROM '.$this->escape_identifiers($table).' LIMIT 1';
- }
- elseif ($this->pdodriver === 'oci')
- {
- // Analog function for oci
- return 'SELECT * FROM '.$this->escape_identifiers($table).' WHERE ROWNUM <= 1';
- }
- elseif ($this->pdodriver === 'sqlite')
- {
- // Analog function for sqlite
- return 'PRAGMA table_info('.$this->escape_identifiers($table).')';
- }
-
- return 'SELECT TOP 1 FROM '.$this->escape_identifiers($table);
+ return 'SELECT TOP 1 * FROM '.$this->protect_identifiers($table);
}
// --------------------------------------------------------------------
@@ -535,7 +365,7 @@
*/
protected function _update_batch($table, $values, $index, $where = NULL)
{
- $ids = array();
+ $ids = array();
$where = ($where !== '' && count($where) >=1) ? implode(" ", $where).' AND ' : '';
foreach ($values as $key => $val)
@@ -587,32 +417,10 @@
*/
protected function _truncate($table)
{
- return 'DELETE FROM '.$table;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Limit string
- *
- * Generates a platform-specific LIMIT clause
- *
- * @param string the sql query string
- * @param int the number of rows to limit the query to
- * @param int the offset value
- * @return string
- */
- protected function _limit($sql, $limit, $offset)
- {
- if ($this->pdodriver === 'pgsql')
- {
- return $sql.' LIMIT '.$limit.($offset ? ' OFFSET '.$offset : '');
- }
-
- return $sql.' LIMIT '.($offset ? $offset.', ' : '').$limit;
+ return 'TRUNCATE TABLE '.$table;
}
}
/* End of file pdo_driver.php */
-/* Location: ./system/database/drivers/pdo/pdo_driver.php */
\ No newline at end of file
+/* Location: ./system/database/drivers/pdo/pdo_driver.php */
diff --git a/system/database/drivers/pdo/pdo_forge.php b/system/database/drivers/pdo/pdo_forge.php
index 02ceb74..5396282 100644
--- a/system/database/drivers/pdo/pdo_forge.php
+++ b/system/database/drivers/pdo/pdo_forge.php
@@ -78,7 +78,7 @@
if ( ! empty($attributes['CONSTRAINT']))
{
// Exception for Postgre numeric which not too happy with constraint within those type
- if ( ! ($this->db->pdodriver === 'pgsql' && in_array($attributes['TYPE'], $numeric)))
+ if ( ! ($this->db->subdriver === 'pgsql' && in_array($attributes['TYPE'], $numeric)))
{
$sql .= '('.$attributes['CONSTRAINT'].')';
}
diff --git a/system/database/drivers/pdo/subdrivers/index.html b/system/database/drivers/pdo/subdrivers/index.html
new file mode 100644
index 0000000..c942a79
--- /dev/null
+++ b/system/database/drivers/pdo/subdrivers/index.html
@@ -0,0 +1,10 @@
+<html>
+<head>
+ <title>403 Forbidden</title>
+</head>
+<body>
+
+<p>Directory access is forbidden.</p>
+
+</body>
+</html>
\ No newline at end of file
diff --git a/system/database/drivers/pdo/subdrivers/pdo_4d_driver.php b/system/database/drivers/pdo/subdrivers/pdo_4d_driver.php
new file mode 100644
index 0000000..e287f5c
--- /dev/null
+++ b/system/database/drivers/pdo/subdrivers/pdo_4d_driver.php
@@ -0,0 +1,223 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.2.4 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 EllisLab Dev Team
+ * @copyright Copyright (c) 2008 - 2012, 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 3.0.0
+ * @filesource
+ */
+
+/**
+ * PDO 4D Database Adapter Class
+ *
+ * Note: _DB is an extender class that the app controller
+ * creates dynamically based on whether the query builder
+ * class is being used or not.
+ *
+ * @package CodeIgniter
+ * @subpackage Drivers
+ * @category Database
+ * @author EllisLab Dev Team
+ * @link http://codeigniter.com/user_guide/database/
+ */
+class CI_DB_pdo_4d_driver extends CI_DB_pdo_driver {
+
+ public $subdriver = '4d';
+
+ // The character used for escaping
+ protected $_escape_char = array('[', ']');
+
+ protected $_random_keyword = ' RAND()';
+
+ /**
+ * Constructor
+ *
+ * Builds the DSN if not already set.
+ *
+ * @param array
+ * @return void
+ */
+ public function __construct($params)
+ {
+ parent::__construct($params);
+
+ if (empty($this->dsn))
+ {
+ $this->dsn = '4D:host='.(empty($this->hostname) ? '127.0.0.1' : $this->hostname);
+
+ empty($this->port) OR $this->dsn .= ';port='.$this->port;
+ empty($this->database) OR $this->dsn .= ';dbname='.$this->database;
+ empty($this->char_set) OR $this->dsn .= ';charset='.$this->char_set;
+ }
+ elseif ( ! empty($this->char_set) && strpos($this->dsn, 'charset=', 3) === FALSE)
+ {
+ $this->dsn .= ';charset='.$this->char_set;
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show table query
+ *
+ * Generates a platform-specific query string so that the table names can be fetched
+ *
+ * @param bool
+ * @return string
+ */
+ protected function _list_tables($prefix_limit = FALSE)
+ {
+ $sql = 'SELECT '.$this->escape_identifiers('TABLE_NAME').' FROM '.$this->escape_identifiers('_USER_TABLES');
+
+ if ($prefix_limit === TRUE && $this->dbprefix !== '')
+ {
+ $sql .= ' WHERE '.$this->escape_identifiers('TABLE_NAME')." LIKE '".$this->escape_like_str($this->dbprefix)."%' "
+ .sprintf($this->_like_escape_str, $this->_like_escape_chr);
+ }
+
+ return $sql;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show column query
+ *
+ * Generates a platform-specific query string so that the column names can be fetched
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _list_columns($table = '')
+ {
+ return 'SELECT '.$this->escape_identifiers('COLUMN_NAME').' FROM '.$this->escape_identifiers('_USER_COLUMNS')
+ .' WHERE '.$this->escape_identifiers('TABLE_NAME').' = '.$this->escape($table);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Field data query
+ *
+ * Generates a platform-specific query so that the column data can be retrieved
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _field_data($table)
+ {
+ return 'SELECT * FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE).' LIMIT 1';
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * From Tables
+ *
+ * This function implicitly groups FROM tables so there is no confusion
+ * about operator precedence in harmony with SQL standards
+ *
+ * @param array
+ * @return string
+ */
+ protected function _from_tables($tables)
+ {
+ return is_array($tables) ? implode(', ', $tables) : $tables;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Update statement
+ *
+ * Generates a platform-specific update string from the supplied data
+ *
+ * @param string the table name
+ * @param array the update data
+ * @param array the where clause
+ * @param array the orderby clause (ignored)
+ * @param array the limit clause (ignored)
+ * @param array the like clause
+ * @return string
+ */
+ protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array())
+ {
+ foreach ($values as $key => $val)
+ {
+ $valstr[] = $key.' = '.$val;
+ }
+
+ $where = empty($where) ? '' : ' WHERE '.implode(' ', $where);
+
+ if ( ! empty($like))
+ {
+ $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like);
+ }
+
+ return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Delete statement
+ *
+ * Generates a platform-specific delete string from the supplied data
+ *
+ * @param string the table name
+ * @param array the where clause
+ * @param array the like clause
+ * @param string the limit clause (ignored)
+ * @return string
+ */
+ protected function _delete($table, $where = array(), $like = array(), $limit = FALSE)
+ {
+ $conditions = array();
+
+ empty($where) OR $conditions[] = implode(' ', $where);
+ empty($like) OR $conditions[] = implode(' ', $like);
+
+ $conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : '';
+
+ return 'DELETE FROM '.$table.$conditions;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Limit string
+ *
+ * Generates a platform-specific LIMIT clause
+ *
+ * @param string the sql query string
+ * @param int the number of rows to limit the query to
+ * @param int the offset value
+ * @return string
+ */
+ protected function _limit($sql, $limit, $offset)
+ {
+ return $sql.' LIMIT '.$limit.($offset ? ' OFFSET '.$offset : '');
+ }
+
+}
+
+/* End of file pdo_4d_driver.php */
+/* Location: ./system/database/drivers/pdo/subdrivers/pdo_4d_driver.php */
\ No newline at end of file
diff --git a/system/database/drivers/pdo/subdrivers/pdo_cubrid_driver.php b/system/database/drivers/pdo/subdrivers/pdo_cubrid_driver.php
new file mode 100644
index 0000000..05eeacf
--- /dev/null
+++ b/system/database/drivers/pdo/subdrivers/pdo_cubrid_driver.php
@@ -0,0 +1,189 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.2.4 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 EllisLab Dev Team
+ * @copyright Copyright (c) 2008 - 2012, 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 3.0.0
+ * @filesource
+ */
+
+/**
+ * PDO CUBRID Database Adapter Class
+ *
+ * Note: _DB is an extender class that the app controller
+ * creates dynamically based on whether the query builder
+ * class is being used or not.
+ *
+ * @package CodeIgniter
+ * @subpackage Drivers
+ * @category Database
+ * @author EllisLab Dev Team
+ * @link http://codeigniter.com/user_guide/database/
+ */
+class CI_DB_pdo_cubrid_driver extends CI_DB_pdo_driver {
+
+ public $subdriver = 'cubrid';
+
+ protected $_escape_char = '`';
+
+ // clause and character used for LIKE escape sequences - not used in CUBRID
+ protected $_like_escape_str = '';
+ protected $_like_escape_chr = '\\';
+
+ protected $_random_keyword = ' RAND()';
+
+ /**
+ * Constructor
+ *
+ * Builds the DSN if not already set.
+ *
+ * @param array
+ * @return void
+ */
+ public function __construct($params)
+ {
+ parent::__construct($params);
+
+ if (empty($this->dsn))
+ {
+ $this->dsn = 'cubrid:host='.(empty($this->hostname) ? '127.0.0.1' : $this->hostname);
+
+ empty($this->port) OR $this->dsn .= ';port='.$this->port;
+ empty($this->database) OR $this->dsn .= ';dbname='.$this->database;
+ empty($this->char_set) OR $this->dsn .= ';charset='.$this->char_set;
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show table query
+ *
+ * Generates a platform-specific query string so that the table names can be fetched
+ *
+ * @param bool
+ * @return string
+ */
+ protected function _list_tables($prefix_limit = FALSE)
+ {
+ $sql = 'SHOW TABLES';
+
+ if ($prefix_limit === TRUE && $this->dbprefix !== '')
+ {
+ return $sql." LIKE '".$this->escape_like_str($this->dbprefix)."%'";
+ }
+
+ return $sql;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show column query
+ *
+ * Generates a platform-specific query string so that the column names can be fetched
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _list_columns($table = '')
+ {
+ return 'SHOW COLUMNS FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Field data query
+ *
+ * Generates a platform-specific query so that the column data can be retrieved
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _field_data($table)
+ {
+ return 'SELECT * FROM '.$this->protect_identifiers($table).' LIMIT 1';
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Update_Batch statement
+ *
+ * Generates a platform-specific batch update string from the supplied data
+ *
+ * @param string the table name
+ * @param array the update data
+ * @param array the where clause
+ * @return string
+ */
+ protected function _update_batch($table, $values, $index, $where = NULL)
+ {
+ $ids = array();
+ foreach ($values as $key => $val)
+ {
+ $ids[] = $val[$index];
+
+ foreach (array_keys($val) as $field)
+ {
+ if ($field !== $index)
+ {
+ $final[$field][] = 'WHEN '.$index.' = '.$val[$index].' THEN '.$val[$field];
+ }
+ }
+ }
+
+ $cases = '';
+ foreach ($final as $k => $v)
+ {
+ $cases .= $k." = CASE \n"
+ .implode("\n", $v)."\n"
+ .'ELSE '.$k.' END), ';
+ }
+
+ return 'UPDATE '.$table.' SET '.substr($cases, 0, -2)
+ .' WHERE '.(($where !== '' && count($where) > 0) ? implode(' ', $where).' AND ' : '')
+ .$index.' IN('.implode(',', $ids).')';
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Truncate statement
+ *
+ * Generates a platform-specific truncate string from the supplied data
+ *
+ * If the database does not support the truncate() command,
+ * then this method maps to 'DELETE FROM table'
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _truncate($table)
+ {
+ return 'TRUNCATE '.$table;
+ }
+
+}
+
+/* End of file pdo_cubrid_driver.php */
+/* Location: ./system/database/drivers/pdo/subdrivers/pdo_cubrid_driver.php */
\ No newline at end of file
diff --git a/system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php b/system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php
new file mode 100644
index 0000000..7060c9e
--- /dev/null
+++ b/system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php
@@ -0,0 +1,265 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.2.4 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 EllisLab Dev Team
+ * @copyright Copyright (c) 2008 - 2012, 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 3.0.0
+ * @filesource
+ */
+
+/**
+ * PDO DBLIB Database Adapter Class
+ *
+ * Note: _DB is an extender class that the app controller
+ * creates dynamically based on whether the query builder
+ * class is being used or not.
+ *
+ * @package CodeIgniter
+ * @subpackage Drivers
+ * @category Database
+ * @author EllisLab Dev Team
+ * @link http://codeigniter.com/user_guide/database/
+ */
+class CI_DB_pdo_dblib_driver extends CI_DB_pdo_driver {
+
+ public $subdriver = 'dblib';
+
+ protected $_random_keyword = ' NEWID()';
+
+ protected $_quoted_identifier;
+
+ /**
+ * Constructor
+ *
+ * Builds the DSN if not already set.
+ *
+ * @param array
+ * @return void
+ */
+ public function __construct($params)
+ {
+ parent::__construct($params);
+
+ if (empty($this->dsn))
+ {
+ $this->dsn = $params['subdriver'].':host='.(empty($this->hostname) ? '127.0.0.1' : $this->hostname);
+
+ if ( ! empty($this->port))
+ {
+ $this->dsn .= (DIRECTORY_SEPARATOR === '\\' ? ',' : ':').$this->port;
+ }
+
+ empty($this->database) OR $this->dsn .= ';dbname='.$this->database;
+ empty($this->char_set) OR $this->dsn .= ';charset='.$this->char_set;
+ empty($this->appname) OR $this->dsn .= ';appname='.$this->appname;
+ }
+ else
+ {
+ if ( ! empty($this->char_set) && strpos($this->dsn, 'charset=', 6) === FALSE)
+ {
+ $this->dsn .= ';charset='.$this->char_set;
+ }
+
+ $this->subdriver = 'dblib';
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Non-persistent database connection
+ *
+ * @param bool
+ * @return object
+ */
+ public function db_connect($persistent = FALSE)
+ {
+ $this->conn_id = parent::db_connect($persistent);
+
+ if ( ! is_object($this->conn_id))
+ {
+ return $this->conn_id;
+ }
+
+ // Determine how identifiers are escaped
+ $query = $this->query('SELECT CASE WHEN (@@OPTIONS | 256) = @@OPTIONS THEN 1 ELSE 0 END AS qi');
+ $query = $query->row_array();
+ $this->_quoted_identifier = empty($query) ? FALSE : (bool) $query['qi'];
+ $this->_escape_char = ($this->_quoted_identifier) ? '"' : array('[', ']');
+
+ return $this->conn_id;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show table query
+ *
+ * Generates a platform-specific query string so that the table names can be fetched
+ *
+ * @param bool
+ * @return string
+ */
+ protected function _list_tables($prefix_limit = FALSE)
+ {
+ return 'SELECT '.$this->escape_identifiers('name')
+ .' FROM '.$this->escape_identifiers('sysobjects')
+ .' WHERE '.$this->escape_identifiers('type')." = 'U'";
+
+ if ($prefix_limit === TRUE && $this->dbprefix !== '')
+ {
+ $sql .= ' AND '.$this->escape_identifiers('name')." LIKE '".$this->escape_like_str($this->dbprefix)."%' "
+ .sprintf($this->_like_escape_str, $this->_like_escape_chr);
+ }
+
+ return $sql.' ORDER BY '.$this->escape_identifiers('name');
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show column query
+ *
+ * Generates a platform-specific query string so that the column names can be fetched
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _list_columns($table = '')
+ {
+ return 'SELECT '.$this->escape_identifiers('column_name')
+ .' FROM '.$this->escape_identifiers('information_schema.columns')
+ .' WHERE '.$this->escape_identifiers('table_name').' = '.$this->escape($table);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * From Tables
+ *
+ * This function implicitly groups FROM tables so there is no confusion
+ * about operator precedence in harmony with SQL standards
+ *
+ * @param array
+ * @return string
+ */
+ protected function _from_tables($tables)
+ {
+ return is_array($tables) ? implode(', ', $tables) : $tables;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Update statement
+ *
+ * Generates a platform-specific update string from the supplied data
+ *
+ * @param string the table name
+ * @param array the update data
+ * @param array the where clause
+ * @param array the orderby clause (ignored)
+ * @param array the limit clause (ignored)
+ * @param array the like clause
+ * @return string
+ */
+ protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array())
+ {
+ foreach ($values as $key => $val)
+ {
+ $valstr[] = $key.' = '.$val;
+ }
+
+ $where = empty($where) ? '' : ' WHERE '.implode(' ', $where);
+
+ if ( ! empty($like))
+ {
+ $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like);
+ }
+
+ return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Delete statement
+ *
+ * Generates a platform-specific delete string from the supplied data
+ *
+ * @param string the table name
+ * @param array the where clause
+ * @param array the like clause
+ * @param string the limit clause
+ * @return string
+ */
+ protected function _delete($table, $where = array(), $like = array(), $limit = FALSE)
+ {
+ $conditions = array();
+
+ empty($where) OR $conditions[] = implode(' ', $where);
+ empty($like) OR $conditions[] = implode(' ', $like);
+
+ $conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : '';
+
+ return ($limit)
+ ? 'WITH ci_delete AS (SELECT TOP '.$limit.' * FROM '.$table.$conditions.') DELETE FROM ci_delete'
+ : 'DELETE FROM '.$table.$conditions;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Limit string
+ *
+ * Generates a platform-specific LIMIT clause
+ *
+ * @param string the sql query string
+ * @param int the number of rows to limit the query to
+ * @param int the offset value
+ * @return string
+ */
+ protected function _limit($sql, $limit, $offset)
+ {
+ $limit = $offset + $limit;
+
+ // As of SQL Server 2005 (9.0.*) ROW_NUMBER() is supported,
+ // however an ORDER BY clause is required for it to work
+ if (version_compare($this->version(), '9', '>=') && $offset && ! empty($this->qb_orderby))
+ {
+ $orderby = 'ORDER BY '.implode(', ', $this->qb_orderby);
+
+ // We have to strip the ORDER BY clause
+ $sql = trim(substr($sql, 0, strrpos($sql, 'ORDER BY '.$orderby)));
+
+ return 'SELECT '.(count($this->qb_select) === 0 ? '*' : implode(', ', $this->qb_select))." FROM (\n"
+ .preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.$orderby.') AS '.$this->escape_identifiers('CI_rownum').', ', $sql)
+ ."\n) ".$this->escape_identifiers('CI_subquery')
+ ."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.((int) $offset + 1).' AND '.$limit;
+ }
+
+ return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.$limit.' ', $sql);
+ }
+
+}
+
+/* End of file pdo_dblib_driver.php */
+/* Location: ./system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php */
diff --git a/system/database/drivers/pdo/subdrivers/pdo_firebird_driver.php b/system/database/drivers/pdo/subdrivers/pdo_firebird_driver.php
new file mode 100644
index 0000000..c074a9a
--- /dev/null
+++ b/system/database/drivers/pdo/subdrivers/pdo_firebird_driver.php
@@ -0,0 +1,262 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.2.4 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 EllisLab Dev Team
+ * @copyright Copyright (c) 2008 - 2012, 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 3.0.0
+ * @filesource
+ */
+
+/**
+ * PDO Firebird Database Adapter Class
+ *
+ * Note: _DB is an extender class that the app controller
+ * creates dynamically based on whether the query builder
+ * class is being used or not.
+ *
+ * @package CodeIgniter
+ * @subpackage Drivers
+ * @category Database
+ * @author EllisLab Dev Team
+ * @link http://codeigniter.com/user_guide/database/
+ */
+class CI_DB_pdo_firebird_driver extends CI_DB_pdo_driver {
+
+ public $subdriver = 'firebird';
+
+ /**
+ * The syntax to count rows is slightly different across different
+ * database engines, so this string appears in each driver and is
+ * used for the count_all() and count_all_results() functions.
+ */
+ protected $_random_keyword = ' RANDOM()'; // Currently not supported
+
+ /**
+ * Constructor
+ *
+ * Builds the DSN if not already set.
+ *
+ * @param array
+ * @return void
+ */
+ public function __construct($params)
+ {
+ parent::__construct($params);
+
+ if (empty($this->dsn))
+ {
+ $this->dsn = 'firebird:';
+
+ if ( ! empty($this->database))
+ {
+ $this->dsn .= 'dbname='.$this->database;
+ }
+ elseif ( ! empty($this->hostname))
+ {
+ $this->dsn .= 'dbname='.$this->hostname;
+ }
+
+ empty($this->char_set) OR $this->dsn .= ';charset='.$this->char_set;
+ empty($this->role) OR $this->dsn .= ';role='.$this->role;
+ }
+ elseif ( ! empty($this->char_set) && strpos($this->dsn, 'charset=', 9) === FALSE)
+ {
+ $this->dsn .= ';charset='.$this->char_set;
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show table query
+ *
+ * Generates a platform-specific query string so that the table names can be fetched
+ *
+ * @param bool
+ * @return string
+ */
+ protected function _list_tables($prefix_limit = FALSE)
+ {
+ $sql = 'SELECT "RDB$RELATION_NAME" FROM "RDB$RELATIONS" WHERE "RDB$RELATION_NAME" NOT LIKE \'RDB$%\' AND "RDB$RELATION_NAME" NOT LIKE \'MON$%\'';
+
+ if ($prefix_limit === TRUE && $this->dbprefix !== '')
+ {
+ return $sql.' AND "RDB$RELATION_NAME" LIKE \''.$this->escape_like_str($this->dbprefix)."%' "
+ .sprintf($this->_like_escape_str, $this->_like_escape_chr);
+ }
+
+ return $sql;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show column query
+ *
+ * Generates a platform-specific query string so that the column names can be fetched
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _list_columns($table = '')
+ {
+ return 'SELECT "RDB$FIELD_NAME" FROM "RDB$RELATION_FIELDS" WHERE "RDB$RELATION_NAME" = '.$this->escape($table);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Field data query
+ *
+ * Generates a platform-specific query so that the column data can be retrieved
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _field_data($table)
+ {
+ return 'SELECT FIRST 1 * FROM '.$this->protect_identifiers($table);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * From Tables
+ *
+ * This function implicitly groups FROM tables so there is no confusion
+ * about operator precedence in harmony with SQL standards
+ *
+ * @param array
+ * @return string
+ */
+ protected function _from_tables($tables)
+ {
+ return is_array($tables) ? implode(', ', $tables) : $tables;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Update statement
+ *
+ * Generates a platform-specific update string from the supplied data
+ *
+ * @param string the table name
+ * @param array the update data
+ * @param array the where clause
+ * @param array the orderby clause
+ * @param array the limit clause (ignored)
+ * @param array the like clause
+ * @return string
+ */
+ protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array())
+ {
+ foreach ($values as $key => $val)
+ {
+ $valstr[] = $key.' = '.$val;
+ }
+
+ $where = empty($where) ? '' : ' WHERE '.implode(' ', $where);
+
+ if ( ! empty($like))
+ {
+ $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like);
+ }
+
+ return 'UPDATE '.$table.' SET '.implode(', ', $valstr)
+ .$where
+ .(count($orderby) > 0 ? ' ORDER BY '.implode(', ', $orderby) : '');
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Truncate statement
+ *
+ * Generates a platform-specific truncate string from the supplied data
+ *
+ * If the database does not support the truncate() command,
+ * then this method maps to 'DELETE FROM table'
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _truncate($table)
+ {
+ return 'DELETE FROM '.$table;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Delete statement
+ *
+ * Generates a platform-specific delete string from the supplied data
+ *
+ * @param string the table name
+ * @param array the where clause
+ * @param array the like clause
+ * @param string the limit clause (ignored)
+ * @return string
+ */
+ protected function _delete($table, $where = array(), $like = array(), $limit = FALSE)
+ {
+ $conditions = array();
+
+ empty($where) OR $conditions[] = implode(' ', $where);
+ empty($like) OR $conditions[] = implode(' ', $like);
+
+ return 'DELETE FROM '.$table.(count($conditions) > 0 ? ' WHERE '.implode(' AND ', $conditions) : '');
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Limit string
+ *
+ * Generates a platform-specific LIMIT clause
+ *
+ * @param string the sql query string
+ * @param int the number of rows to limit the query to
+ * @param int the offset value
+ * @return string
+ */
+ protected function _limit($sql, $limit, $offset)
+ {
+ // Limit clause depends on if Interbase or Firebird
+ if (stripos($this->version(), 'firebird') !== FALSE)
+ {
+ $select = 'FIRST '. (int) $limit
+ .($offset > 0 ? ' SKIP '. (int) $offset : '');
+ }
+ else
+ {
+ $select = 'ROWS '
+ .($offset > 0 ? (int) $offset.' TO '.($limit + $offset) : (int) $limit);
+ }
+
+ return preg_replace('`SELECT`i', 'SELECT '.$select, $sql);
+ }
+
+}
+
+/* End of file pdo_firebird_driver.php */
+/* Location: ./system/database/drivers/pdo/subdrivers/pdo_firebird_driver.php */
\ No newline at end of file
diff --git a/system/database/drivers/pdo/subdrivers/pdo_ibm_driver.php b/system/database/drivers/pdo/subdrivers/pdo_ibm_driver.php
new file mode 100644
index 0000000..832c03c
--- /dev/null
+++ b/system/database/drivers/pdo/subdrivers/pdo_ibm_driver.php
@@ -0,0 +1,262 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.2.4 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 EllisLab Dev Team
+ * @copyright Copyright (c) 2008 - 2012, 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 3.0.0
+ * @filesource
+ */
+
+/**
+ * PDO IBM DB2 Database Adapter Class
+ *
+ * Note: _DB is an extender class that the app controller
+ * creates dynamically based on whether the query builder
+ * class is being used or not.
+ *
+ * @package CodeIgniter
+ * @subpackage Drivers
+ * @category Database
+ * @author EllisLab Dev Team
+ * @link http://codeigniter.com/user_guide/database/
+ */
+class CI_DB_pdo_ibm_driver extends CI_DB_pdo_driver {
+
+ public $subdriver = 'ibm';
+
+ protected $_random_keyword = ' RAND()';
+
+ /**
+ * Constructor
+ *
+ * Builds the DSN if not already set.
+ *
+ * @param array
+ * @return void
+ */
+ public function __construct($params)
+ {
+ parent::__construct($params);
+
+ if (empty($this->dsn))
+ {
+ $this->dsn = 'ibm:';
+
+ // Pre-defined DSN
+ if (empty($this->hostname) && empty($this->HOSTNAME) && empty($this->port) && empty($this->PORT))
+ {
+ if (isset($this->DSN))
+ {
+ $this->dsn .= 'DSN='.$this->DSN;
+ }
+ elseif ( ! empty($this->database))
+ {
+ $this->dsn .= 'DSN='.$this->database;
+ }
+
+ return;
+ }
+
+ $this->dsn .= 'DRIVER='.(isset($this->DRIVER) ? '{'.$this->DRIVER.'}' : '{IBM DB2 ODBC DRIVER}').';';
+
+ if (isset($this->DATABASE))
+ {
+ $this->dsn .= 'DATABASE='.$this->DATABASE.';';
+ }
+ elseif ( ! empty($this->database))
+ {
+ $this->dsn .= 'DATABASE='.$this->database.';';
+ }
+
+ if (isset($this->HOSTNAME))
+ {
+ $this->dsn .= 'HOSTNAME='.$this->HOSTNAME.';';
+ }
+ else
+ {
+ $this->dsn .= 'HOSTNAME='.(empty($this->hostname) ? '127.0.0.1;' : $this->hostname.';');
+ }
+
+ if (isset($this->PORT))
+ {
+ $this->dsn .= 'PORT='.$this->port.';';
+ }
+ elseif ( ! empty($this->port))
+ {
+ $this->dsn .= ';PORT='.$this->port.';';
+ }
+
+ $this->dsn .= 'PROTOCOL='.(isset($this->PROTOCOL) ? $this->PROTOCOL.';' : 'TCPIP;');
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show table query
+ *
+ * Generates a platform-specific query string so that the table names can be fetched
+ *
+ * @param bool
+ * @return string
+ */
+ protected function _list_tables($prefix_limit = FALSE)
+ {
+ $sql = 'SELECT "tabname" FROM "syscat"."tables" WHERE "type" = \'T\'';
+
+ if ($prefix_limit === TRUE && $this->dbprefix !== '')
+ {
+ $sql .= ' AND "tabname" LIKE \''.$this->escape_like_str($this->dbprefix)."%' "
+ .sprintf($this->_like_escape_str, $this->_like_escape_chr);
+ }
+
+ return $sql;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show column query
+ *
+ * Generates a platform-specific query string so that the column names can be fetched
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _list_columns($table = '')
+ {
+ return 'SELECT "colname" FROM "syscat"."tables"
+ WHERE "syscat"."tabtype" = \'T\' AND "syscat"."tabname" = '.$this->escape($table);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Field data query
+ *
+ * Generates a platform-specific query so that the column data can be retrieved
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _field_data($table)
+ {
+ return 'SELECT * FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE).' FETCH FIRST 1 ROWS ONLY';
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * From Tables
+ *
+ * This function implicitly groups FROM tables so there is no confusion
+ * about operator precedence in harmony with SQL standards
+ *
+ * @param array
+ * @return string
+ */
+ protected function _from_tables($tables)
+ {
+ return is_array($tables) ? implode(', ', $tables) : $tables;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Update statement
+ *
+ * Generates a platform-specific update string from the supplied data
+ *
+ * @param string the table name
+ * @param array the update data
+ * @param array the where clause
+ * @param array the orderby clause (ignored)
+ * @param array the limit clause (ignored)
+ * @param array the like clause
+ * @return string
+ */
+ protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array())
+ {
+ foreach ($values as $key => $val)
+ {
+ $valstr[] = $key.' = '.$val;
+ }
+
+ $where = empty($where) ? '' : ' WHERE '.implode(' ', $where);
+
+ if ( ! empty($like))
+ {
+ $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like);
+ }
+
+ return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Delete statement
+ *
+ * Generates a platform-specific delete string from the supplied data
+ *
+ * @param string the table name
+ * @param array the where clause
+ * @param array the like clause
+ * @param string the limit clause (ignored)
+ * @return string
+ */
+ protected function _delete($table, $where = array(), $like = array(), $limit = FALSE)
+ {
+ $conditions = array();
+
+ empty($where) OR $conditions[] = implode(' ', $where);
+ empty($like) OR $conditions[] = implode(' ', $like);
+
+ $conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : '';
+
+ return 'DELETE FROM '.$table.$conditions;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Limit string
+ *
+ * Generates a platform-specific LIMIT clause
+ *
+ * @param string the sql query string
+ * @param int the number of rows to limit the query to
+ * @param int the offset value
+ * @return string
+ */
+ protected function _limit($sql, $limit, $offset)
+ {
+ $sql .= ' FETCH FIRST '.($limit + $offset).' ROWS ONLY';
+
+ return ($offset)
+ ? 'SELECT * FROM ('.$sql.') WHERE rownum > '.$offset
+ : $sql;
+ }
+
+}
+
+/* End of file pdo_ibm_driver.php */
+/* Location: ./system/database/drivers/pdo/subdrivers/pdo_ibm_driver.php */
\ No newline at end of file
diff --git a/system/database/drivers/pdo/subdrivers/pdo_informix_driver.php b/system/database/drivers/pdo/subdrivers/pdo_informix_driver.php
new file mode 100644
index 0000000..a3efc63
--- /dev/null
+++ b/system/database/drivers/pdo/subdrivers/pdo_informix_driver.php
@@ -0,0 +1,271 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.2.4 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 EllisLab Dev Team
+ * @copyright Copyright (c) 2008 - 2012, 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 3.0.0
+ * @filesource
+ */
+
+/**
+ * PDO Informix Database Adapter Class
+ *
+ * Note: _DB is an extender class that the app controller
+ * creates dynamically based on whether the query builder
+ * class is being used or not.
+ *
+ * @package CodeIgniter
+ * @subpackage Drivers
+ * @category Database
+ * @author EllisLab Dev Team
+ * @link http://codeigniter.com/user_guide/database/
+ */
+class CI_DB_pdo_informix_driver extends CI_DB_pdo_driver {
+
+ public $subdriver = 'informix';
+
+ protected $_random_keyword = ' RAND()';
+
+ /**
+ * Constructor
+ *
+ * Builds the DSN if not already set.
+ *
+ * @param array
+ * @return void
+ */
+ public function __construct($params)
+ {
+ parent::__construct($params);
+
+ if (empty($this->dsn))
+ {
+ $this->dsn = 'informix:';
+
+ // Pre-defined DSN
+ if (empty($this->hostname) && empty($this->host) && empty($this->port) && empty($this->service))
+ {
+ if (isset($this->DSN))
+ {
+ $this->dsn .= 'DSN='.$this->DSN;
+ }
+ elseif ( ! empty($this->database))
+ {
+ $this->dsn .= 'DSN='.$this->database;
+ }
+
+ return;
+ }
+
+ if (isset($this->host))
+ {
+ $this->dsn .= 'host='.$this->host;
+ }
+ else
+ {
+ $this->dsn .= 'host='.(empty($this->hostname) ? '127.0.0.1' : $this->hostname);
+ }
+
+ if (isset($this->service))
+ {
+ $this->dsn .= '; service='.$this->service;
+ }
+ elseif ( ! empty($this->port))
+ {
+ $this->dsn .= '; service='.$this->port;
+ }
+
+ empty($this->database) OR $this->dsn .= '; database='.$this->database;
+ empty($this->server) OR $this->dsn .= '; server='.$this->server;
+
+ $this->dsn .= '; protocol='.(isset($this->protocol) ? $this->protocol : 'onsoctcp')
+ .'; EnableScrollableCursors=1';
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show table query
+ *
+ * Generates a platform-specific query string so that the table names can be fetched
+ *
+ * @param bool
+ * @return string
+ */
+ protected function _list_tables($prefix_limit = FALSE)
+ {
+ $sql = 'SELECT "tabname" FROM "systables" WHERE "tabid" > 99 AND "tabtype" = \'T\'';
+
+ if ($prefix_limit === TRUE && $this->dbprefix !== '')
+ {
+ $sql .= ' AND "tabname" LIKE \''.$this->escape_like_str($this->dbprefix)."%' "
+ .sprintf($this->_like_escape_str, $this->_like_escape_chr);
+ }
+
+ return $sql;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show column query
+ *
+ * Generates a platform-specific query string so that the column names can be fetched
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _list_columns($table = '')
+ {
+ return 'SELECT "colname" FROM "systables", "syscolumns"
+ WHERE "systables"."tabid" = "syscolumns"."tabid" AND "systables"."tabtype" = \'T\' AND "systables"."tabname" = '
+ .$this->escape($table);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Field data query
+ *
+ * Generates a platform-specific query so that the column data can be retrieved
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _field_data($table)
+ {
+ return 'SELECT FIRST 1 * FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * From Tables
+ *
+ * This function implicitly groups FROM tables so there is no confusion
+ * about operator precedence in harmony with SQL standards
+ *
+ * @param array
+ * @return string
+ */
+ protected function _from_tables($tables)
+ {
+ return is_array($tables) ? implode(', ', $tables) : $tables;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Update statement
+ *
+ * Generates a platform-specific update string from the supplied data
+ *
+ * @param string the table name
+ * @param array the update data
+ * @param array the where clause
+ * @param array the orderby clause (ignored)
+ * @param array the limit clause (ignored)
+ * @param array the like clause
+ * @return string
+ */
+ protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array())
+ {
+ foreach ($values as $key => $val)
+ {
+ $valstr[] = $key.' = '.$val;
+ }
+
+ $where = empty($where) ? '' : ' WHERE '.implode(' ', $where);
+
+ if ( ! empty($like))
+ {
+ $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like);
+ }
+
+ return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Truncate statement
+ *
+ * Generates a platform-specific truncate string from the supplied data
+ *
+ * If the database does not support the truncate() command,
+ * then this method maps to 'DELETE FROM table'
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _truncate($table)
+ {
+ return 'TRUNCATE TABLE ONLY '.$table;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Delete statement
+ *
+ * Generates a platform-specific delete string from the supplied data
+ *
+ * @param string the table name
+ * @param array the where clause
+ * @param array the like clause
+ * @param string the limit clause (ignored)
+ * @return string
+ */
+ protected function _delete($table, $where = array(), $like = array(), $limit = FALSE)
+ {
+ $conditions = array();
+
+ empty($where) OR $conditions[] = implode(' ', $where);
+ empty($like) OR $conditions[] = implode(' ', $like);
+
+ $conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : '';
+
+ return 'DELETE FROM '.$table.$conditions;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Limit string
+ *
+ * Generates a platform-specific LIMIT clause
+ *
+ * @param string the sql query string
+ * @param int the number of rows to limit the query to
+ * @param int the offset value
+ * @return string
+ */
+ protected function _limit($sql, $limit, $offset)
+ {
+ $select = 'SELECT '.($offset ? 'SKIP '.$offset : '').'FIRST '.$limit.' ';
+ return preg_replace('/^(SELECT\s)/i', $select, $sql, 1);
+ }
+
+}
+
+/* End of file pdo_informix_driver.php */
+/* Location: ./system/database/drivers/pdo/subdrivers/pdo_informix_driver.php */
\ No newline at end of file
diff --git a/system/database/drivers/pdo/subdrivers/pdo_mysql_driver.php b/system/database/drivers/pdo/subdrivers/pdo_mysql_driver.php
new file mode 100644
index 0000000..78afe24
--- /dev/null
+++ b/system/database/drivers/pdo/subdrivers/pdo_mysql_driver.php
@@ -0,0 +1,217 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.2.4 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 EllisLab Dev Team
+ * @copyright Copyright (c) 2008 - 2012, 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 3.0.0
+ * @filesource
+ */
+
+/**
+ * PDO MySQL Database Adapter Class
+ *
+ * Note: _DB is an extender class that the app controller
+ * creates dynamically based on whether the query builder
+ * class is being used or not.
+ *
+ * @package CodeIgniter
+ * @subpackage Drivers
+ * @category Database
+ * @author EllisLab Dev Team
+ * @link http://codeigniter.com/user_guide/database/
+ */
+class CI_DB_pdo_mysql_driver extends CI_DB_pdo_driver {
+
+ public $subdriver = 'mysql';
+
+ protected $_escape_char = '`';
+
+ // clause and character used for LIKE escape sequences - not used in MySQL
+ protected $_like_escape_str = '';
+ protected $_like_escape_chr = '\\';
+
+ protected $_random_keyword = ' RAND()';
+
+ /**
+ * Constructor
+ *
+ * Builds the DSN if not already set.
+ *
+ * @param array
+ * @return void
+ */
+ public function __construct($params)
+ {
+ parent::__construct($params);
+
+ if (empty($this->dsn))
+ {
+ $this->dsn = 'mysql:host='.(empty($this->hostname) ? '127.0.0.1' : $this->hostname);
+
+ empty($this->port) OR $this->dsn .= ';port='.$this->port;
+ empty($this->database) OR $this->dsn .= ';dbname='.$this->database;
+ empty($this->char_set) OR $this->dsn .= ';charset='.$this->char_set;
+ }
+ elseif ( ! empty($this->char_set) && strpos($this->dsn, 'charset=', 6) === FALSE && is_php('5.3.6'))
+ {
+ $this->dsn .= ';charset='.$this->char_set;
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Non-persistent database connection
+ *
+ * @param bool
+ * @return object
+ */
+ public function db_connect($persistent = FALSE)
+ {
+ /* Prior to PHP 5.3.6, even if the charset was supplied in the DSN
+ * on connect - it was ignored. This is a work-around for the issue.
+ *
+ * Reference: http://www.php.net/manual/en/ref.pdo-mysql.connection.php
+ */
+ if ( ! is_php('5.3.6') && ! empty($this->char_set))
+ {
+ $this->options[PDO::MYSQL_ATTR_INIT_COMMAND] = 'SET NAMES '.$this->char_set
+ .(empty($this->dbcollat) ? '' : ' COLLATE '.$this->dbcollat);
+ }
+
+ return parent::db_connect($persistent);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show table query
+ *
+ * Generates a platform-specific query string so that the table names can be fetched
+ *
+ * @param bool
+ * @return string
+ */
+ protected function _list_tables($prefix_limit = FALSE)
+ {
+ $sql = 'SHOW TABLES';
+
+ if ($prefix_limit === TRUE && $this->dbprefix !== '')
+ {
+ return $sql." LIKE '".$this->escape_like_str($this->dbprefix)."%'";
+ }
+
+ return $sql;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show column query
+ *
+ * Generates a platform-specific query string so that the column names can be fetched
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _list_columns($table = '')
+ {
+ return 'SHOW COLUMNS FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Field data query
+ *
+ * Generates a platform-specific query so that the column data can be retrieved
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _field_data($table)
+ {
+ return 'SELECT * FROM '.$this->protect_identifiers($table).' LIMIT 1';
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Update_Batch statement
+ *
+ * Generates a platform-specific batch update string from the supplied data
+ *
+ * @param string the table name
+ * @param array the update data
+ * @param array the where clause
+ * @return string
+ */
+ protected function _update_batch($table, $values, $index, $where = NULL)
+ {
+ $ids = array();
+ foreach ($values as $key => $val)
+ {
+ $ids[] = $val[$index];
+
+ foreach (array_keys($val) as $field)
+ {
+ if ($field !== $index)
+ {
+ $final[$field][] = 'WHEN '.$index.' = '.$val[$index].' THEN '.$val[$field];
+ }
+ }
+ }
+
+ $cases = '';
+ foreach ($final as $k => $v)
+ {
+ $cases .= $k." = CASE \n"
+ .implode("\n", $v)."\n"
+ .'ELSE '.$k.' END), ';
+ }
+
+ return 'UPDATE '.$table.' SET '.substr($cases, 0, -2)
+ .' WHERE '.(($where !== '' && count($where) > 0) ? implode(' ', $where).' AND ' : '')
+ .$index.' IN('.implode(',', $ids).')';
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Truncate statement
+ *
+ * Generates a platform-specific truncate string from the supplied data
+ *
+ * If the database does not support the truncate() command,
+ * then this method maps to 'DELETE FROM table'
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _truncate($table)
+ {
+ return 'TRUNCATE '.$table;
+ }
+
+}
+
+/* End of file pdo_mysql_driver.php */
+/* Location: ./system/database/drivers/pdo/subdrivers/pdo_mysql_driver.php */
\ No newline at end of file
diff --git a/system/database/drivers/pdo/subdrivers/pdo_oci_driver.php b/system/database/drivers/pdo/subdrivers/pdo_oci_driver.php
new file mode 100644
index 0000000..56ec1bc
--- /dev/null
+++ b/system/database/drivers/pdo/subdrivers/pdo_oci_driver.php
@@ -0,0 +1,230 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.2.4 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 EllisLab Dev Team
+ * @copyright Copyright (c) 2008 - 2012, 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 3.0.0
+ * @filesource
+ */
+
+/**
+ * PDO Oracle Database Adapter Class
+ *
+ * Note: _DB is an extender class that the app controller
+ * creates dynamically based on whether the query builder
+ * class is being used or not.
+ *
+ * @package CodeIgniter
+ * @subpackage Drivers
+ * @category Database
+ * @author EllisLab Dev Team
+ * @link http://codeigniter.com/user_guide/database/
+ */
+class CI_DB_pdo_oci_driver extends CI_DB_pdo_driver {
+
+ public $subdriver = 'oci';
+
+ /**
+ * The syntax to count rows is slightly different across different
+ * database engines, so this string appears in each driver and is
+ * used for the count_all() and count_all_results() functions.
+ */
+ protected $_count_string = 'SELECT COUNT(1) AS ';
+ protected $_random_keyword = ' ASC'; // Currently not supported
+
+ protected $_reserved_identifiers = array('*', 'rownum');
+
+ /**
+ * Constructor
+ *
+ * Builds the DSN if not already set.
+ *
+ * @param array
+ * @return void
+ */
+ public function __construct($params)
+ {
+ parent::__construct($params);
+
+ if (empty($this->dsn))
+ {
+ $this->dsn = 'oci:dbname=';
+
+ // Oracle has a slightly different PDO DSN format (Easy Connect),
+ // which also supports pre-defined DSNs.
+ if (empty($this->hostname) && empty($this->port))
+ {
+ $this->dsn .= $this->database;
+ }
+ else
+ {
+ $this->dsn .= '//'.(empty($this->hostname) ? '127.0.0.1' : $this->hostname)
+ .(empty($this->port) ? '' : ':'.$this->port).'/';
+
+ empty($this->database) OR $this->dsn .= $this->database;
+ }
+
+ empty($this->char_set) OR $this->dsn .= ';charset='.$this->char_set;
+ }
+ elseif ( ! empty($this->char_set) && strpos($this->dsn, 'charset=', 4) === FALSE)
+ {
+ $this->dsn .= ';charset='.$this->char_set;
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show table query
+ *
+ * Generates a platform-specific query string so that the table names can be fetched
+ *
+ * @param bool
+ * @return string
+ */
+ protected function _list_tables($prefix_limit = FALSE)
+ {
+ $sql = 'SELECT "TABLE_NAME" FROM "ALL_TABLES"';
+
+ if ($prefix_limit === TRUE && $this->dbprefix !== '')
+ {
+ return $sql.' WHERE "TABLE_NAME" LIKE \''.$this->escape_like_str($this->dbprefix)."%' "
+ .sprintf($this->_like_escape_str, $this->_like_escape_chr);
+ }
+
+ return $sql;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show column query
+ *
+ * Generates a platform-specific query string so that the column names can be fetched
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _list_columns($table = '')
+ {
+ return 'SELECT "COLUMN_NAME" FROM "all_tab_columns" WHERE "TABLE_NAME" = '.$this->escape($table);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Field data query
+ *
+ * Generates a platform-specific query so that the column data can be retrieved
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _field_data($table)
+ {
+ return 'SELECT * FROM '.$this->protect_identifiers($table).' WHERE rownum = 1';
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * From Tables
+ *
+ * This function implicitly groups FROM tables so there is no confusion
+ * about operator precedence in harmony with SQL standards
+ *
+ * @param array
+ * @return string
+ */
+ protected function _from_tables($tables)
+ {
+ return is_array($tables) ? implode(', ', $tables) : $tables;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Insert_batch statement
+ *
+ * @param string the table name
+ * @param array the insert keys
+ * @param array the insert values
+ * @return string
+ */
+ protected function _insert_batch($table, $keys, $values)
+ {
+ $keys = implode(', ', $keys);
+ $sql = "INSERT ALL\n";
+
+ for ($i = 0, $c = count($values); $i < $c; $i++)
+ {
+ $sql .= ' INTO '.$table.' ('.$keys.') VALUES '.$values[$i]."\n";
+ }
+
+ return $sql.'SELECT * FROM dual';
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Delete statement
+ *
+ * Generates a platform-specific delete string from the supplied data
+ *
+ * @param string the table name
+ * @param array the where clause
+ * @param array the like clause
+ * @param string the limit clause
+ * @return string
+ */
+ protected function _delete($table, $where = array(), $like = array(), $limit = FALSE)
+ {
+ $conditions = array();
+
+ empty($where) OR $conditions[] = implode(' ', $where);
+ empty($like) OR $conditions[] = implode(' ', $like);
+ empty($limit) OR $conditions[] = 'rownum <= '.$limit;
+
+ return 'DELETE FROM '.$table.(count($conditions) > 0 ? ' WHERE '.implode(' AND ', $conditions) : '');
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Limit string
+ *
+ * Generates a platform-specific LIMIT clause
+ *
+ * @param string the sql query string
+ * @param int the number of rows to limit the query to
+ * @param int the offset value
+ * @return string
+ */
+ protected function _limit($sql, $limit, $offset)
+ {
+ return 'SELECT * FROM (SELECT inner_query.*, rownum rnum FROM ('.$sql.') inner_query WHERE rownum < '.($offset + $limit + 1).')'
+ .($offset ? ' WHERE rnum >= '.($offset + 1): '');
+ }
+
+}
+
+/* End of file pdo_oci_driver.php */
+/* Location: ./system/database/drivers/pdo/subdrivers/pdo_oci_driver.php */
\ No newline at end of file
diff --git a/system/database/drivers/pdo/subdrivers/pdo_odbc_driver.php b/system/database/drivers/pdo/subdrivers/pdo_odbc_driver.php
new file mode 100644
index 0000000..392754f
--- /dev/null
+++ b/system/database/drivers/pdo/subdrivers/pdo_odbc_driver.php
@@ -0,0 +1,268 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.2.4 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 EllisLab Dev Team
+ * @copyright Copyright (c) 2008 - 2012, 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 3.0.0
+ * @filesource
+ */
+
+/**
+ * PDO ODBC Database Adapter Class
+ *
+ * Note: _DB is an extender class that the app controller
+ * creates dynamically based on whether the query builder
+ * class is being used or not.
+ *
+ * @package CodeIgniter
+ * @subpackage Drivers
+ * @category Database
+ * @author EllisLab Dev Team
+ * @link http://codeigniter.com/user_guide/database/
+ */
+class CI_DB_pdo_odbc_driver extends CI_DB_pdo_driver {
+
+ public $subdriver = 'odbc';
+
+ // The character used for escaping - not used in ODBC
+ protected $_escape_char = '';
+
+ // clause and character used for LIKE escape sequences
+ protected $_like_escape_chr = '!';
+ protected $_like_escape_str = " {escape '%s'} ";
+
+ protected $_random_keyword = ' RAND()';
+
+ /**
+ * Constructor
+ *
+ * Builds the DSN if not already set.
+ *
+ * @param array
+ * @return void
+ */
+ public function __construct($params)
+ {
+ parent::__construct($params);
+
+ if (empty($this->dsn))
+ {
+ $this->dsn = 'odbc:';
+
+ // Pre-defined DSN
+ if (empty($this->hostname) && empty($this->HOSTNAME) && empty($this->port) && empty($this->PORT))
+ {
+ if (isset($this->DSN))
+ {
+ $this->dsn .= 'DSN='.$this->DSN;
+ }
+ elseif ( ! empty($this->database))
+ {
+ $this->dsn .= 'DSN='.$this->database;
+ }
+
+ return;
+ }
+
+ // If the DSN is not pre-configured - try to build an IBM DB2 connection string
+ $this->dsn .= 'DRIVER='.(isset($this->DRIVER) ? '{'.$this->DRIVER.'}' : '{IBM DB2 ODBC DRIVER}').';';
+
+ if (isset($this->DATABASE))
+ {
+ $this->dsn .= 'DATABASE='.$this->DATABASE.';';
+ }
+ elseif ( ! empty($this->database))
+ {
+ $this->dsn .= 'DATABASE='.$this->database.';';
+ }
+
+ if (isset($this->HOSTNAME))
+ {
+ $this->dsn .= 'HOSTNAME='.$this->HOSTNAME.';';
+ }
+ else
+ {
+ $this->dsn .= 'HOSTNAME='.(empty($this->hostname) ? '127.0.0.1;' : $this->hostname.';');
+ }
+
+ if (isset($this->PORT))
+ {
+ $this->dsn .= 'PORT='.$this->port.';';
+ }
+ elseif ( ! empty($this->port))
+ {
+ $this->dsn .= ';PORT='.$this->port.';';
+ }
+
+ $this->dsn .= 'PROTOCOL='.(isset($this->PROTOCOL) ? $this->PROTOCOL.';' : 'TCPIP;');
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show table query
+ *
+ * Generates a platform-specific query string so that the table names can be fetched
+ *
+ * @param bool
+ * @return string
+ */
+ protected function _list_tables($prefix_limit = FALSE)
+ {
+ $sql = "SELECT table_name FROM information_schema.tables WHERE table_schema = 'public'";
+
+ if ($prefix_limit !== FALSE && $this->dbprefix !== '')
+ {
+ return $sql." AND table_name LIKE '".$this->escape_like_str($this->dbprefix)."%' "
+ .sprintf($this->_like_escape_str, $this->_like_escape_chr);
+ }
+
+ return $sql;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show column query
+ *
+ * Generates a platform-specific query string so that the column names can be fetched
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _list_columns($table = '')
+ {
+ return 'SELECT column_name FROM information_schema.columns WHERE table_name = '.$this->escape($table);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * From Tables
+ *
+ * This function implicitly groups FROM tables so there is no confusion
+ * about operator precedence in harmony with SQL standards
+ *
+ * @param array
+ * @return string
+ */
+ protected function _from_tables($tables)
+ {
+ return is_array($tables) ? implode(', ', $tables) : $tables;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Update statement
+ *
+ * Generates a platform-specific update string from the supplied data
+ *
+ * @param string the table name
+ * @param array the update data
+ * @param array the where clause
+ * @param array the orderby clause (ignored)
+ * @param array the limit clause (ignored)
+ * @param array the like clause
+ * @return string
+ */
+ protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array())
+ {
+ foreach ($values as $key => $val)
+ {
+ $valstr[] = $key.' = '.$val;
+ }
+
+ $where = empty($where) ? '' : ' WHERE '.implode(' ', $where);
+
+ if ( ! empty($like))
+ {
+ $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like);
+ }
+
+ return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Truncate statement
+ *
+ * Generates a platform-specific truncate string from the supplied data
+ *
+ * If the database does not support the truncate() command,
+ * then this method maps to 'DELETE FROM table'
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _truncate($table)
+ {
+ return 'DELETE FROM '.$table;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Delete statement
+ *
+ * Generates a platform-specific delete string from the supplied data
+ *
+ * @param string the table name
+ * @param array the where clause
+ * @param array the like clause
+ * @param string the limit clause
+ * @return string
+ */
+ protected function _delete($table, $where = array(), $like = array(), $limit = FALSE)
+ {
+ $conditions = array();
+
+ empty($where) OR $conditions[] = implode(' ', $where);
+ empty($like) OR $conditions[] = implode(' ', $like);
+
+ $conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : '';
+
+ return 'DELETE FROM '.$table.$conditions;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Limit string
+ *
+ * Generates a platform-specific LIMIT clause
+ *
+ * @param string the sql query string
+ * @param int the number of rows to limit the query to
+ * @param int the offset value
+ * @return string
+ */
+ protected function _limit($sql, $limit, $offset)
+ {
+ return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.$limit.' ', $sql);
+ }
+
+}
+
+/* End of file pdo_odbc_driver.php */
+/* Location: ./system/database/drivers/pdo/subdrivers/pdo_odbc_driver.php */
\ No newline at end of file
diff --git a/system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php b/system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php
new file mode 100644
index 0000000..9a476f1
--- /dev/null
+++ b/system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php
@@ -0,0 +1,341 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.2.4 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 EllisLab Dev Team
+ * @copyright Copyright (c) 2008 - 2012, 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 3.0.0
+ * @filesource
+ */
+
+/**
+ * PDO PostgreSQL Database Adapter Class
+ *
+ * Note: _DB is an extender class that the app controller
+ * creates dynamically based on whether the query builder
+ * class is being used or not.
+ *
+ * @package CodeIgniter
+ * @subpackage Drivers
+ * @category Database
+ * @author EllisLab Dev Team
+ * @link http://codeigniter.com/user_guide/database/
+ */
+class CI_DB_pdo_pgsql_driver extends CI_DB_pdo_driver {
+
+ public $subdriver = 'pgsql';
+
+ protected $_random_keyword = ' RANDOM()';
+
+ /**
+ * Constructor
+ *
+ * Builds the DSN if not already set.
+ *
+ * @param array
+ * @return void
+ */
+ public function __construct($params)
+ {
+ parent::__construct($params);
+
+ if (empty($this->dsn))
+ {
+ $this->dsn = 'pgsql:host='.(empty($this->hostname) ? '127.0.0.1' : $this->hostname);
+
+ empty($this->port) OR $this->dsn .= ';port='.$this->port;
+ empty($this->database) OR $this->dsn .= ';dbname='.$this->database;
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Insert ID
+ *
+ * @param string
+ * @return int
+ */
+ public function insert_id($name = NULL)
+ {
+ if ($name === NULL && version_compare($this->version(), '8.1', '>='))
+ {
+ $query = $this->query('SELECT LASTVAL() AS ins_id');
+ $query = $query->row();
+ return $query->ins_id;
+ }
+
+ return $this->conn_id->lastInsertId($name);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show table query
+ *
+ * Generates a platform-specific query string so that the table names can be fetched
+ *
+ * @param bool
+ * @return string
+ */
+ protected function _list_tables($prefix_limit = FALSE)
+ {
+ $sql = 'SELECT "table_name" FROM "information_schema"."tables" WHERE "table_schema" = \'public\'';
+
+ if ($prefix_limit === TRUE && $this->dbprefix !== '')
+ {
+ return $sql.' AND "table_name" LIKE \''
+ .$this->escape_like_str($this->dbprefix)."%' "
+ .sprintf($this->_like_escape_str, $this->_like_escape_chr);
+ }
+
+ return $sql;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show column query
+ *
+ * Generates a platform-specific query string so that the column names can be fetched
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _list_columns($table = '')
+ {
+ return 'SELECT "column_name" FROM "information_schema"."columns" WHERE "table_name" = '.$this->escape($table);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Field data query
+ *
+ * Generates a platform-specific query so that the column data can be retrieved
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _field_data($table)
+ {
+ return 'SELECT * FROM '.$this->protect_identifiers($table).' LIMIT 1';
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * From Tables
+ *
+ * This function implicitly groups FROM tables so there is no confusion
+ * about operator precedence in harmony with SQL standards
+ *
+ * @param array
+ * @return string
+ */
+ protected function _from_tables($tables)
+ {
+ return is_array($tables) ? implode(', ', $tables) : $tables;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Update statement
+ *
+ * Generates a platform-specific update string from the supplied data
+ *
+ * @param string the table name
+ * @param array the update data
+ * @param array the where clause
+ * @param array the orderby clause (ignored)
+ * @param array the limit clause (ignored)
+ * @param array the like clause
+ * @return string
+ */
+ protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array())
+ {
+ foreach ($values as $key => $val)
+ {
+ $valstr[] = $key.' = '.$val;
+ }
+
+ $where = empty($where) ? '' : ' WHERE '.implode(' ', $where);
+
+ if ( ! empty($like))
+ {
+ $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like);
+ }
+
+ return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Update_Batch statement
+ *
+ * Generates a platform-specific batch update string from the supplied data
+ *
+ * @param string the table name
+ * @param array the update data
+ * @param array the where clause
+ * @return string
+ */
+ protected function _update_batch($table, $values, $index, $where = NULL)
+ {
+ $ids = array();
+ foreach ($values as $key => $val)
+ {
+ $ids[] = $val[$index];
+
+ foreach (array_keys($val) as $field)
+ {
+ if ($field !== $index)
+ {
+ $final[$field][] = 'WHEN '.$val[$index].' THEN '.$val[$field];
+ }
+ }
+ }
+
+ $cases = '';
+ foreach ($final as $k => $v)
+ {
+ $cases .= $k.' = (CASE '.$k."\n"
+ .implode("\n", $v)."\n"
+ .'ELSE '.$k.' END), ';
+ }
+
+ return 'UPDATE '.$table.' SET '.substr($cases, 0, -2)
+ .' WHERE '.(($where !== '' && count($where) > 0) ? implode(' ', $where).' AND ' : '')
+ .$index.' IN('.implode(',', $ids).')';
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Delete statement
+ *
+ * Generates a platform-specific delete string from the supplied data
+ *
+ * @param string the table name
+ * @param array the where clause
+ * @param array the like clause
+ * @param string the limit clause (ignored)
+ * @return string
+ */
+ protected function _delete($table, $where = array(), $like = array(), $limit = FALSE)
+ {
+ $conditions = array();
+
+ empty($where) OR $conditions[] = implode(' ', $where);
+ empty($like) OR $conditions[] = implode(' ', $like);
+
+ return 'DELETE FROM '.$table.(count($conditions) > 0 ? ' WHERE '.implode(' AND ', $conditions) : '');
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Limit string
+ *
+ * Generates a platform-specific LIMIT clause
+ *
+ * @param string the sql query string
+ * @param int the number of rows to limit the query to
+ * @param int the offset value
+ * @return string
+ */
+ protected function _limit($sql, $limit, $offset)
+ {
+ return $sql.' LIMIT '.$limit.($offset ? ' OFFSET '.$offset : '');
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Where
+ *
+ * Called by where() or or_where()
+ *
+ * @param mixed
+ * @param mixed
+ * @param string
+ * @return object
+ */
+ protected function _where($key, $value = NULL, $type = 'AND ', $escape = NULL)
+ {
+ if ( ! is_array($key))
+ {
+ $key = array($key => $value);
+ }
+
+ // If the escape value was not set will will base it on the global setting
+ is_bool($escape) OR $escape = $this->_protect_identifiers;
+
+ foreach ($key as $k => $v)
+ {
+ $prefix = (count($this->qb_where) === 0 && count($this->qb_cache_where) === 0)
+ ? $this->_group_get_type('')
+ : $this->_group_get_type($type);
+
+ $k = (($op = $this->_get_operator($k)) !== FALSE)
+ ? $this->protect_identifiers(substr($k, 0, strpos($k, $op)), FALSE, $escape).strstr($k, $op)
+ : $this->protect_identifiers($k, FALSE, $escape);
+
+ if (is_null($v) && ! $this->_has_operator($k))
+ {
+ // value appears not to have been set, assign the test to IS NULL
+ $k .= ' IS NULL';
+ }
+
+ if ( ! is_null($v))
+ {
+ if ($escape === TRUE)
+ {
+ $v = ' '.$this->escape($v);
+ }
+ elseif (is_bool($v))
+ {
+ $v = ($v ? ' TRUE' : ' FALSE');
+ }
+
+ if ( ! $this->_has_operator($k))
+ {
+ $k .= ' = ';
+ }
+ }
+
+ $this->qb_where[] = $prefix.$k.$v;
+ if ($this->qb_caching === TRUE)
+ {
+ $this->qb_cache_where[] = $prefix.$k.$v;
+ $this->qb_cache_exists[] = 'where';
+ }
+
+ }
+
+ return $this;
+ }
+
+}
+
+/* End of file pdo_pgsql_driver.php */
+/* Location: ./system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php */
\ No newline at end of file
diff --git a/system/database/drivers/pdo/subdrivers/pdo_sqlite_driver.php b/system/database/drivers/pdo/subdrivers/pdo_sqlite_driver.php
new file mode 100644
index 0000000..bf0363f
--- /dev/null
+++ b/system/database/drivers/pdo/subdrivers/pdo_sqlite_driver.php
@@ -0,0 +1,167 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.2.4 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 EllisLab Dev Team
+ * @copyright Copyright (c) 2008 - 2012, 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 3.0.0
+ * @filesource
+ */
+
+/**
+ * PDO SQLite Database Adapter Class
+ *
+ * Note: _DB is an extender class that the app controller
+ * creates dynamically based on whether the query builder
+ * class is being used or not.
+ *
+ * @package CodeIgniter
+ * @subpackage Drivers
+ * @category Database
+ * @author EllisLab Dev Team
+ * @link http://codeigniter.com/user_guide/database/
+ */
+class CI_DB_pdo_sqlite_driver extends CI_DB_pdo_driver {
+
+ public $subdriver = 'sqlite';
+
+ /**
+ * The syntax to count rows is slightly different across different
+ * database engines, so this string appears in each driver and is
+ * used for the count_all() and count_all_results() functions.
+ */
+ protected $_random_keyword = ' RANDOM()'; // Currently not supported
+
+ /**
+ * Constructor
+ *
+ * Builds the DSN if not already set.
+ *
+ * @param array
+ * @return void
+ */
+ public function __construct($params)
+ {
+ parent::__construct($params);
+
+ if (empty($this->dsn))
+ {
+ $this->dsn = 'sqlite:';
+
+ if (empty($this->database) && empty($this->hostname))
+ {
+ $this->database = ':memory:';
+ }
+
+ $this->database = empty($this->database) ? $this->hostname : $this->database;
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show table query
+ *
+ * Generates a platform-specific query string so that the table names can be fetched
+ *
+ * @param bool
+ * @return string
+ */
+ protected function _list_tables($prefix_limit = FALSE)
+ {
+ $sql = 'SELECT "NAME" FROM "SQLITE_MASTER" WHERE "TYPE" = \'table\'';
+
+ if ($prefix_limit === TRUE && $this->dbprefix !== '')
+ {
+ return $sql.' AND "NAME" LIKE \''.$this->escape_like_str($this->dbprefix)."%' "
+ .sprintf($this->_like_escape_str, $this->_like_escape_chr);
+ }
+
+ return $sql;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show column query
+ *
+ * Generates a platform-specific query string so that the column names can be fetched
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _list_columns($table = '')
+ {
+ // Not supported
+ return FALSE;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Field data query
+ *
+ * Generates a platform-specific query so that the column data can be retrieved
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _field_data($table)
+ {
+ return 'SELECT * FROM '.$this->protect_identifiers($table).' LIMIT 0,1';
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Replace statement
+ *
+ * @param string the table name
+ * @param array the insert keys
+ * @param array the insert values
+ * @return string
+ */
+ protected function _replace($table, $keys, $values)
+ {
+ return 'INSERT OR '.parent::_replace($table, $keys, $values);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Truncate statement
+ *
+ * Generates a platform-specific truncate string from the supplied data
+ *
+ * If the database does not support the truncate() command,
+ * then this method maps to 'DELETE FROM table'
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _truncate($table)
+ {
+ return 'DELETE FROM '.$table;
+ }
+
+}
+
+/* End of file pdo_sqlite_driver.php */
+/* Location: ./system/database/drivers/pdo/subdrivers/pdo_sqlite_driver.php */
\ No newline at end of file
diff --git a/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php b/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php
new file mode 100644
index 0000000..f125b8f
--- /dev/null
+++ b/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php
@@ -0,0 +1,299 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP 5.2.4 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 EllisLab Dev Team
+ * @copyright Copyright (c) 2008 - 2012, 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 3.0.0
+ * @filesource
+ */
+
+/**
+ * PDO SQLSRV Database Adapter Class
+ *
+ * Note: _DB is an extender class that the app controller
+ * creates dynamically based on whether the query builder
+ * class is being used or not.
+ *
+ * @package CodeIgniter
+ * @subpackage Drivers
+ * @category Database
+ * @author EllisLab Dev Team
+ * @link http://codeigniter.com/user_guide/database/
+ */
+class CI_DB_pdo_sqlsrv_driver extends CI_DB_pdo_driver {
+
+ public $subdriver = 'sqlsrv';
+
+ protected $_random_keyword = ' NEWID()';
+
+ protected $_quoted_identifier;
+
+ /**
+ * Constructor
+ *
+ * Builds the DSN if not already set.
+ *
+ * @param array
+ * @return void
+ */
+ public function __construct($params)
+ {
+ parent::__construct($params);
+
+ if (empty($this->dsn))
+ {
+ $this->dsn = 'sqlsrv:Server='.(empty($this->hostname) ? '127.0.0.1' : $this->hostname);
+
+ empty($this->port) OR $this->dsn .= ','.$this->port;
+ empty($this->database) OR $this->dsn .= ';Database='.$this->database;
+
+ // Some custom options
+
+ if (isset($this->QuotedId))
+ {
+ $this->dsn .= ';QuotedId='.$this->QuotedId;
+ $this->_quoted_identifier = (bool) $this->QuotedId;
+ }
+
+ if (isset($this->ConnectionPooling))
+ {
+ $this->dsn .= ';ConnectionPooling='.$this->ConnectionPooling;
+ }
+
+ if (isset($this->Encrypt))
+ {
+ $this->dsn .= ';Encrypt='.$this->Encrypt;
+ }
+
+ if (isset($this->TraceOn))
+ {
+ $this->dsn .= ';TraceOn='.$this->TraceOn;
+ }
+
+ if (isset($this->TrustServerCertificate))
+ {
+ $this->dsn .= ';TrustServerCertificate='.$this->TrustServerCertificate;
+ }
+
+ empty($this->APP) OR $this->dsn .= ';APP='.$this->APP;
+ empty($this->Failover_Partner) OR $this->dsn .= ';Failover_Partner='.$this->Failover_Partner;
+ empty($this->LoginTimeout) OR $this->dsn .= ';LoginTimeout='.$this->LoginTimeout;
+ empty($this->MultipleActiveResultSets) OR $this->dsn .= ';MultipleActiveResultSets='.$this->MultipleActiveResultSets;
+ empty($this->TraceFile) OR $this->dsn .= ';TraceFile='.$this->TraceFile;
+ empty($this->WSID) OR $this->dsn .= ';WSID='.$this->WSID;
+ }
+ elseif (preg_match('/QuotedId=(0|1)/', $this->dsn, $match))
+ {
+ $this->_quoted_identifier = (bool) $match[1];
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Non-persistent database connection
+ *
+ * @param bool
+ * @return object
+ */
+ public function db_connect($persistent = FALSE)
+ {
+ if ( ! empty($this->char_set) && preg_match('/utf[^8]*8/i', $this->char_set))
+ {
+ $this->options[PDO::SQLSRV_ENCODING_UTF8] = 1;
+ }
+
+ $this->conn_id = parent::db_connect($persistent);
+
+ if ( ! is_object($this->conn_id) OR is_bool($this->_quoted_identifier))
+ {
+ return $this->conn_id;
+ }
+
+ // Determine how identifiers are escaped
+ $query = $this->query('SELECT CASE WHEN (@@OPTIONS | 256) = @@OPTIONS THEN 1 ELSE 0 END AS qi');
+ $query = $query->row_array();
+ $this->_quoted_identifier = empty($query) ? FALSE : (bool) $query['qi'];
+ $this->_escape_char = ($this->_quoted_identifier) ? '"' : array('[', ']');
+
+ return $this->conn_id;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show table query
+ *
+ * Generates a platform-specific query string so that the table names can be fetched
+ *
+ * @param bool
+ * @return string
+ */
+ protected function _list_tables($prefix_limit = FALSE)
+ {
+ return 'SELECT '.$this->escape_identifiers('name')
+ .' FROM '.$this->escape_identifiers('sysobjects')
+ .' WHERE '.$this->escape_identifiers('type')." = 'U'";
+
+ if ($prefix_limit === TRUE && $this->dbprefix !== '')
+ {
+ $sql .= ' AND '.$this->escape_identifiers('name')." LIKE '".$this->escape_like_str($this->dbprefix)."%' "
+ .sprintf($this->_like_escape_str, $this->_like_escape_chr);
+ }
+
+ return $sql.' ORDER BY '.$this->escape_identifiers('name');
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show column query
+ *
+ * Generates a platform-specific query string so that the column names can be fetched
+ *
+ * @param string the table name
+ * @return string
+ */
+ protected function _list_columns($table = '')
+ {
+ return 'SELECT '.$this->escape_identifiers('column_name')
+ .' FROM '.$this->escape_identifiers('information_schema.columns')
+ .' WHERE '.$this->escape_identifiers('table_name').' = '.$this->escape($table);
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * From Tables
+ *
+ * This function implicitly groups FROM tables so there is no confusion
+ * about operator precedence in harmony with SQL standards
+ *
+ * @param array
+ * @return string
+ */
+ protected function _from_tables($tables)
+ {
+ return is_array($tables) ? implode(', ', $tables) : $tables;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Update statement
+ *
+ * Generates a platform-specific update string from the supplied data
+ *
+ * @param string the table name
+ * @param array the update data
+ * @param array the where clause
+ * @param array the orderby clause (ignored)
+ * @param array the limit clause (ignored)
+ * @param array the like clause
+ * @return string
+ */
+ protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array())
+ {
+ foreach ($values as $key => $val)
+ {
+ $valstr[] = $key.' = '.$val;
+ }
+
+ $where = empty($where) ? '' : ' WHERE '.implode(' ', $where);
+
+ if ( ! empty($like))
+ {
+ $where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like);
+ }
+
+ return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Delete statement
+ *
+ * Generates a platform-specific delete string from the supplied data
+ *
+ * @param string the table name
+ * @param array the where clause
+ * @param array the like clause
+ * @param string the limit clause
+ * @return string
+ */
+ protected function _delete($table, $where = array(), $like = array(), $limit = FALSE)
+ {
+ $conditions = array();
+
+ empty($where) OR $conditions[] = implode(' ', $where);
+ empty($like) OR $conditions[] = implode(' ', $like);
+
+ $conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : '';
+
+ return ($limit)
+ ? 'WITH ci_delete AS (SELECT TOP '.$limit.' * FROM '.$table.$conditions.') DELETE FROM ci_delete'
+ : 'DELETE FROM '.$table.$conditions;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Limit string
+ *
+ * Generates a platform-specific LIMIT clause
+ *
+ * @param string the sql query string
+ * @param int the number of rows to limit the query to
+ * @param int the offset value
+ * @return string
+ */
+ protected function _limit($sql, $limit, $offset)
+ {
+ // As of SQL Server 2012 (11.0.*) OFFSET is supported
+ if (version_compare($this->version(), '11', '>='))
+ {
+ return $sql.' OFFSET '.(int) $offset.' ROWS FETCH NEXT '.(int) $limit.' ROWS ONLY';
+ }
+
+ $limit = $offset + $limit;
+
+ // An ORDER BY clause is required for ROW_NUMBER() to work
+ if ($offset && ! empty($this->qb_orderby))
+ {
+ $orderby = 'ORDER BY '.implode(', ', $this->qb_orderby);
+
+ // We have to strip the ORDER BY clause
+ $sql = trim(substr($sql, 0, strrpos($sql, 'ORDER BY '.$orderby)));
+
+ return 'SELECT '.(count($this->qb_select) === 0 ? '*' : implode(', ', $this->qb_select))." FROM (\n"
+ .preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.$orderby.') AS '.$this->escape_identifiers('CI_rownum').', ', $sql)
+ ."\n) ".$this->escape_identifiers('CI_subquery')
+ ."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.((int) $offset + 1).' AND '.$limit;
+ }
+
+ return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.$limit.' ', $sql);
+ }
+
+}
+
+/* End of file pdo_sqlsrv_driver.php */
+/* Location: ./system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php */
diff --git a/tests/mocks/database/config/pdo/mysql.php b/tests/mocks/database/config/pdo/mysql.php
index fefe0d6..96608f7 100644
--- a/tests/mocks/database/config/pdo/mysql.php
+++ b/tests/mocks/database/config/pdo/mysql.php
@@ -4,13 +4,13 @@
// Typical Database configuration
'pdo/mysql' => array(
- 'dsn' => '',
+ 'dsn' => 'mysql:host=localhost;dbname=ci_test',
'hostname' => 'localhost',
'username' => 'travis',
'password' => '',
'database' => 'ci_test',
'dbdriver' => 'pdo',
- 'pdodriver' => 'mysql'
+ 'subdriver' => 'mysql'
),
// Database configuration with failover
@@ -21,16 +21,16 @@
'password' => 'wrong password',
'database' => 'not_ci_test',
'dbdriver' => 'pdo',
- 'pdodriver' => 'mysql',
+ 'subdriver' => 'mysql',
'failover' => array(
array(
- 'dsn' => '',
+ 'dsn' => 'mysql:host=localhost;dbname=ci_test',
'hostname' => 'localhost',
'username' => 'travis',
'password' => '',
'database' => 'ci_test',
'dbdriver' => 'pdo',
- 'pdodriver' => 'mysql'
+ 'subdriver' => 'mysql'
)
)
)
diff --git a/tests/mocks/database/config/pdo/pgsql.php b/tests/mocks/database/config/pdo/pgsql.php
index ddd638c..e55e3ea 100644
--- a/tests/mocks/database/config/pdo/pgsql.php
+++ b/tests/mocks/database/config/pdo/pgsql.php
@@ -10,7 +10,7 @@
'password' => '',
'database' => 'ci_test',
'dbdriver' => 'pdo',
- 'pdodriver' => 'pgsql'
+ 'subdriver' => 'pgsql'
),
// Database configuration with failover
@@ -21,7 +21,7 @@
'password' => 'wrong password',
'database' => 'not_ci_test',
'dbdriver' => 'pdo',
- 'pdodriver' => 'pgsql',
+ 'subdriver' => 'pgsql',
'failover' => array(
array(
'dsn' => 'pgsql:host=localhost;port=5432;dbname=ci_test;',
@@ -30,7 +30,7 @@
'password' => '',
'database' => 'ci_test',
'dbdriver' => 'pdo',
- 'pdodriver' => 'pgsql'
+ 'subdriver' => 'pgsql'
)
)
)
diff --git a/tests/mocks/database/config/pdo/sqlite.php b/tests/mocks/database/config/pdo/sqlite.php
index 3646184..1bf56b3 100644
--- a/tests/mocks/database/config/pdo/sqlite.php
+++ b/tests/mocks/database/config/pdo/sqlite.php
@@ -10,7 +10,7 @@
'password' => 'sqlite',
'database' => 'sqlite',
'dbdriver' => 'pdo',
- 'pdodriver' => 'sqlite'
+ 'subdriver' => 'sqlite'
),
// Database configuration with failover
@@ -21,7 +21,7 @@
'password' => 'sqlite',
'database' => 'sqlite',
'dbdriver' => 'pdo',
- 'pdodriver' => 'sqlite',
+ 'subdriver' => 'sqlite',
'failover' => array(
array(
'dsn' => 'sqlite:/'.realpath(__DIR__.'/../..').'/ci_test.sqlite',
@@ -30,7 +30,7 @@
'password' => 'sqlite',
'database' => 'sqlite',
'dbdriver' => 'pdo',
- 'pdodriver' => 'sqlite'
+ 'subdriver' => 'sqlite'
)
)
)
diff --git a/tests/mocks/database/db.php b/tests/mocks/database/db.php
index 30504bb..7565853 100644
--- a/tests/mocks/database/db.php
+++ b/tests/mocks/database/db.php
@@ -45,9 +45,9 @@
);
$config = array_merge($this->config[$group], $params);
- $dsnstring = ( ! empty($config['dsn'])) ? $config['dsn'] : FALSE;
- $pdodriver = ( ! empty($config['pdodriver'])) ? $config['pdodriver'] : FALSE;
- $failover = ( ! empty($config['failover'])) ? $config['failover'] : FALSE;
+ $dsnstring = empty($config['dsn']) ? FALSE : $config['dsn'];
+ $subdriver = empty($config['subdriver']) ? FALSE: $config['subdriver'];
+ $failover = empty($config['failover']) ? FALSE : $config['failover'];
$dsn = $config['dbdriver'].'://'.$config['username'].':'.$config['password']
.'@'.$config['hostname'].'/'.$config['database'];
@@ -55,7 +55,7 @@
// Build the parameter
$other_params = array_slice($config, 6);
if ($dsnstring) $other_params['dsn'] = $dsnstring;
- if ($pdodriver) $other_params['pdodriver'] = $pdodriver;
+ if ($subdriver) $other_params['subdriver'] = $subdriver;
if ($failover) $other_params['failover'] = $failover;
return $dsn.'?'.http_build_query($other_params);
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index c2e33e7..f028924 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -137,6 +137,7 @@
- Added unbuffered_row() method for getting a row without prefetching whole result (consume less memory).
- Added PDO support for ``list_fields()`` in :doc:`Database Results <database/results>`.
- Added capability for packages to hold database.php config files
+ - Added subdrivers support (currently only used by PDO).
- Libraries