ok
Direktori : /home2/selectio/public_html/gangabuvana/admin/cms/system/database/drivers/oci8/ |
Current File : //home2/selectio/public_html/gangabuvana/admin/cms/system/database/drivers/oci8/oci8_forge.php |
<?php /** * CodeIgniter * * An open source application development framework for PHP * * This content is released under the MIT License (MIT) * * Copyright (c) 2014 - 2018, British Columbia Institute of Technology * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * * @package CodeIgniter * @author EllisLab Dev Team * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) * @copyright Copyright (c) 2014 - 2018, British Columbia Institute of Technology (http://bcit.ca/) * @license http://opensource.org/licenses/MIT MIT License * @link https://codeigniter.com * @since Version 1.4.1 * @filesource */ defined('BASEPATH') OR exit('No direct script access allowed'); /** * Oracle Forge Class * * @category Database * @author EllisLab Dev Team * @link https://codeigniter.com/user_guide/database/ */ class CI_DB_oci8_forge extends CI_DB_forge { /** * CREATE DATABASE statement * * @var string */ protected $_create_database = FALSE; /** * CREATE TABLE IF statement * * @var string */ protected $_create_table_if = FALSE; /** * DROP DATABASE statement * * @var string */ protected $_drop_database = FALSE; /** * DROP TABLE IF statement * * @var string */ protected $_drop_table_if = FALSE; /** * UNSIGNED support * * @var bool|array */ protected $_unsigned = FALSE; // -------------------------------------------------------------------- /** * ALTER TABLE * * @param string $alter_type ALTER type * @param string $table Table name * @param mixed $field Column definition * @return string|string[] */ protected function _alter_table($alter_type, $table, $field) { if ($alter_type === 'DROP') { return parent::_alter_table($alter_type, $table, $field); } elseif ($alter_type === 'CHANGE') { $alter_type = 'MODIFY'; } $sql = 'ALTER TABLE '.$this->db->escape_identifiers($table); $sqls = array(); for ($i = 0, $c = count($field); $i < $c; $i++) { if ($field[$i]['_literal'] !== FALSE) { $field[$i] = "\n\t".$field[$i]['_literal']; } else { $field[$i]['_literal'] = "\n\t".$this->_process_column($field[$i]); if ( ! empty($field[$i]['comment'])) { $sqls[] = 'COMMENT ON COLUMN ' .$this->db->escape_identifiers($table).'.'.$this->db->escape_identifiers($field[$i]['name']) .' IS '.$field[$i]['comment']; } if ($alter_type === 'MODIFY' && ! empty($field[$i]['new_name'])) { $sqls[] = $sql.' RENAME COLUMN '.$this->db->escape_identifiers($field[$i]['name']) .' TO '.$this->db->escape_identifiers($field[$i]['new_name']); } $field[$i] = "\n\t".$field[$i]['_literal']; } } $sql .= ' '.$alter_type.' '; $sql .= (count($field) === 1) ? $field[0] : '('.implode(',', $field).')'; // RENAME COLUMN must be executed after MODIFY array_unshift($sqls, $sql); return $sqls; } // -------------------------------------------------------------------- /** * Field attribute AUTO_INCREMENT * * @param array &$attributes * @param array &$field * @return void */ protected function _attr_auto_increment(&$attributes, &$field) { // Not supported - sequences and triggers must be used instead } // -------------------------------------------------------------------- /** * Field attribute TYPE * * Performs a data type mapping between different databases. * * @param array &$attributes * @return void */ protected function _attr_type(&$attributes) { switch (strtoupper($attributes['TYPE'])) { case 'TINYINT': $attributes['TYPE'] = 'NUMBER'; return; case 'MEDIUMINT': $attributes['TYPE'] = 'NUMBER'; return; case 'INT': $attributes['TYPE'] = 'NUMBER'; return; case 'BIGINT': $attributes['TYPE'] = 'NUMBER'; return; default: return; } } }