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-rw-r--r--system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php45
-rw-r--r--system/database/drivers/pdo/subdrivers/pdo_odbc_driver.php239
-rw-r--r--system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php2
-rw-r--r--system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php19
4 files changed, 272 insertions, 33 deletions
diff --git a/system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php b/system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php
index 3a2679f41..a3e118149 100644
--- a/system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php
+++ b/system/database/drivers/pdo/subdrivers/pdo_dblib_driver.php
@@ -85,6 +85,32 @@ class CI_DB_pdo_dblib_driver extends CI_DB_pdo_driver {
// --------------------------------------------------------------------
/**
+ * Non-persistent database connection
+ *
+ * @param bool
+ * @return object
+ */
+ public function db_connect($persistent = FALSE)
+ {
+ $pdo_obj = parent::db_connect($persistent);
+
+ if ( ! is_object($pdo_obj))
+ {
+ return $pdo_obj;
+ }
+
+ // 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 $pdo_obj;
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
* Show table query
*
* Generates a platform-specific query string so that the table names can be fetched
@@ -119,22 +145,9 @@ class CI_DB_pdo_dblib_driver extends CI_DB_pdo_driver {
*/
protected function _list_columns($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($table)
- {
- return 'SELECT TOP 1 * FROM '.$this->protect_identifiers($table);
+ return 'SELECT '.$this->escape_identifiers('column_name')
+ .' FROM '.$this->escape_identifiers('information_schema.columns')
+ .' WHERE '.$this->escape_identifiers('table_name').' = '.$this->escape($table);
}
// --------------------------------------------------------------------
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 000000000..a4f9dad3c
--- /dev/null
+++ b/system/database/drivers/pdo/subdrivers/pdo_odbc_driver.php
@@ -0,0 +1,239 @@
+<?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 = $params['subdriver'].':host='.(empty($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;
+ }
+
+ $this->subdriver = 'odbc';
+ }
+ }
+
+ // --------------------------------------------------------------------
+
+ /**
+ * Show table query
+ *
+ * Generates a platform-specific query string so that the table names can be fetched
+ *
+ * @param bool
+ * @return string
+ */
+ protected function _list_tables($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.' ', $sql);
+ }
+
+}
+
+/* End of file pdo_odbc_driver.php */
+/* Location: ./system/database/drivers/pdo/subdrivers/pdo_odbc_driver.php */ \ No newline at end of file
diff --git a/system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php b/system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php
index 59ae853d6..7486e42d4 100644
--- a/system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php
+++ b/system/database/drivers/pdo/subdrivers/pdo_pgsql_driver.php
@@ -97,7 +97,7 @@ class CI_DB_pdo_pgsql_driver extends CI_DB_pdo_driver {
*/
protected function _list_tables($prefix_limit = FALSE)
{
- $sql = 'SELECT * FROM "information_schema"."tables" WHERE "table_schema" = \'public\'';
+ $sql = 'SELECT "table_name" FROM "information_schema"."tables" WHERE "table_schema" = \'public\'';
if ($prefix_limit === TRUE && $this->dbprefix !== '')
{
diff --git a/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php b/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php
index 5afd749b4..a1865b55f 100644
--- a/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php
+++ b/system/database/drivers/pdo/subdrivers/pdo_sqlsrv_driver.php
@@ -174,22 +174,9 @@ class CI_DB_pdo_sqlsrv_driver extends CI_DB_pdo_driver {
*/
protected function _list_columns($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($table)
- {
- return 'SELECT TOP 1 * FROM '.$this->protect_identifiers($table);
+ return 'SELECT '.$this->escape_identifiers('column_name')
+ .' FROM '.$this->escape_identifiers('information_schema.columns')
+ .' WHERE '.$this->escape_identifiers('table_name').' = '.$this->escape($table);
}
// --------------------------------------------------------------------