147 lines
3.5 KiB
PHP
147 lines
3.5 KiB
PHP
<?php
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/**
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* FuzeWorks.
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*
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* The FuzeWorks MVC PHP FrameWork
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*
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* Copyright (C) 2015 TechFuze
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @author TechFuze
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* @copyright Copyright (c) 2013 - 2016, Techfuze. (http://techfuze.net)
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* @copyright Copyright (c) 1996 - 2015, Free Software Foundation, Inc. (http://www.fsf.org/)
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* @license http://opensource.org/licenses/GPL-3.0 GPLv3 License
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*
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* @link http://techfuze.net/fuzeworks
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* @since Version 0.0.1
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*
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* @version Version 1.0.0
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*/
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/**
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* Oracle Forge Class
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*
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* Converted from CodeIgniter.
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*
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* @package FuzeWorks
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* @category Database
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* @author EllisLab Dev Team
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* @link https://codeigniter.com/user_guide/database/
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* @license http://opensource.org/licenses/MIT MIT License
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*/
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class FW_DB_oci8_forge extends FW_DB_forge {
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/**
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* CREATE DATABASE statement
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*
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* @var string
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*/
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protected $_create_database = FALSE;
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/**
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* DROP DATABASE statement
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*
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* @var string
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*/
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protected $_drop_database = FALSE;
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/**
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* DROP TABLE IF statement
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*
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* @var string
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*/
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protected $_drop_table_if = FALSE;
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/**
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* UNSIGNED support
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*
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* @var bool|array
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*/
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protected $_unsigned = 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 === 'DROP')
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{
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return parent::_alter_table($alter_type, $table, $field);
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}
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elseif ($alter_type === 'CHANGE')
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{
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$alter_type = 'MODIFY';
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}
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$sql = 'ALTER TABLE '.$this->db->escape_identifiers($table);
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$sqls = array();
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for ($i = 0, $c = count($field); $i < $c; $i++)
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{
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if ($field[$i]['_literal'] !== FALSE)
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{
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$field[$i] = "\n\t".$field[$i]['_literal'];
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}
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else
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{
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$field[$i]['_literal'] = "\n\t".$this->_process_column($field[$i]);
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if ( ! empty($field[$i]['comment']))
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{
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$sqls[] = 'COMMENT ON COLUMN '
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.$this->db->escape_identifiers($table).'.'.$this->db->escape_identifiers($field[$i]['name'])
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.' IS '.$field[$i]['comment'];
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}
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if ($alter_type === 'MODIFY' && ! empty($field[$i]['new_name']))
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{
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$sqls[] = $sql.' RENAME COLUMN '.$this->db->escape_identifiers($field[$i]['name'])
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.' '.$this->db->escape_identifiers($field[$i]['new_name']);
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}
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}
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}
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$sql .= ' '.$alter_type.' ';
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$sql .= (count($field) === 1)
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? $field[0]
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: '('.implode(',', $field).')';
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// RENAME COLUMN must be executed after MODIFY
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array_unshift($sqls, $sql);
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return $sql;
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}
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// --------------------------------------------------------------------
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/**
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* Field attribute AUTO_INCREMENT
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*
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* @param array &$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 - sequences and triggers must be used instead
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}
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}
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