146 lines
3.4 KiB
PHP
146 lines
3.4 KiB
PHP
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<?php
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/**
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* CodeIgniter
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*
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* An open source application development framework for PHP 5.2.4 or newer
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*
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* NOTICE OF LICENSE
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*
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* Licensed under the Open Software License version 3.0
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*
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* This source file is subject to the Open Software License (OSL 3.0) that is
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* bundled with this package in the files license.txt / license.rst. It is
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* also available through the world wide web at this URL:
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* http://opensource.org/licenses/OSL-3.0
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* If you did not receive a copy of the license and are unable to obtain it
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* through the world wide web, please send an email to
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* licensing@ellislab.com so we can send you a copy immediately.
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*
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* @package CodeIgniter
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* @author EllisLab Dev Team
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* @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (http://ellislab.com/)
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* @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
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* @link http://codeigniter.com
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* @since Version 2.1.0
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* @filesource
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*/
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defined('BASEPATH') OR exit('No direct script access allowed');
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/**
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* PDO IBM DB2 Forge Class
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*
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* @category Database
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* @author EllisLab Dev Team
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* @link http://codeigniter.com/user_guide/database/
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*/
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class CI_DB_pdo_ibm_forge extends CI_DB_pdo_forge {
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/**
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* RENAME TABLE IF statement
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*
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* @var string
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*/
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protected $_rename_table = 'RENAME TABLE %s TO %s';
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/**
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* UNSIGNED support
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*
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* @var array
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*/
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protected $_unsigned = array(
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'SMALLINT' => 'INTEGER',
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'INT' => 'BIGINT',
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'INTEGER' => 'BIGINT'
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);
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/**
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* DEFAULT value representation in CREATE/ALTER TABLE statements
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*
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* @var string
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*/
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protected $_default = FALSE;
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// --------------------------------------------------------------------
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/**
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* ALTER TABLE
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*
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* @param string $alter_type ALTER type
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* @param string $table Table name
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* @param mixed $field Column definition
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* @return string|string[]
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*/
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protected function _alter_table($alter_type, $table, $field)
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{
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if ($alter_type === 'CHANGE')
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{
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$alter_type = 'MODIFY';
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}
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return parent::_alter_table($alter_type, $table, $field);
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}
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// --------------------------------------------------------------------
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/**
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* Field attribute TYPE
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*
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* Performs a data type mapping between different databases.
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*
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* @param array &$attributes
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* @return void
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*/
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protected function _attr_type(&$attributes)
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{
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switch (strtoupper($attributes['TYPE']))
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{
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case 'TINYINT':
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$attributes['TYPE'] = 'SMALLINT';
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$attributes['UNSIGNED'] = FALSE;
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return;
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case 'MEDIUMINT':
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$attributes['TYPE'] = 'INTEGER';
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$attributes['UNSIGNED'] = FALSE;
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return;
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default: return;
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}
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}
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// --------------------------------------------------------------------
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/**
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* Field attribute UNIQUE
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*
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* @param array &$attributes
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* @param array &$field
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* @return void
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*/
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protected function _attr_unique(&$attributes, &$field)
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{
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if ( ! empty($attributes['UNIQUE']) && $attributes['UNIQUE'] === TRUE)
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{
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$field['unique'] = ' UNIQUE';
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// UNIQUE must be used with NOT NULL
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$field['null'] = ' NOT NULL';
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}
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}
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// --------------------------------------------------------------------
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/**
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* Field attribute AUTO_INCREMENT
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*
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* @param array &$attributes
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* @param array &$field
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* @return void
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*/
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protected function _attr_auto_increment(&$attributes, &$field)
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{
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// Not supported
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}
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}
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/* End of file pdo_ibm_forge.php */
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/* Location: ./system/database/drivers/pdo/subdrivers/pdo_ibm_forge.php */
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