mirror of
https://github.com/alextselegidis/easyappointments.git
synced 2024-11-09 01:23:10 +03:00
225 lines
5.8 KiB
PHP
225 lines
5.8 KiB
PHP
<?php
|
|
/**
|
|
* CodeIgniter
|
|
*
|
|
* An open source application development framework for PHP
|
|
*
|
|
* This content is released under the MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2014 - 2019, 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 - 2019, British Columbia Institute of Technology (https://bcit.ca/)
|
|
* @license https://opensource.org/licenses/MIT MIT License
|
|
* @link https://codeigniter.com
|
|
* @since Version 3.0.0
|
|
* @filesource
|
|
*/
|
|
defined('BASEPATH') OR exit('No direct script access allowed');
|
|
|
|
/**
|
|
* SQLite3 Forge Class
|
|
*
|
|
* @category Database
|
|
* @author Andrey Andreev
|
|
* @link https://codeigniter.com/userguide3/database/
|
|
*/
|
|
class CI_DB_sqlite3_forge extends CI_DB_forge {
|
|
|
|
/**
|
|
* UNSIGNED support
|
|
*
|
|
* @var bool|array
|
|
*/
|
|
protected $_unsigned = FALSE;
|
|
|
|
/**
|
|
* NULL value representation in CREATE/ALTER TABLE statements
|
|
*
|
|
* @var string
|
|
*/
|
|
protected $_null = 'NULL';
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Class constructor
|
|
*
|
|
* @param object &$db Database object
|
|
* @return void
|
|
*/
|
|
public function __construct(&$db)
|
|
{
|
|
parent::__construct($db);
|
|
|
|
if (version_compare($this->db->version(), '3.3', '<'))
|
|
{
|
|
$this->_create_table_if = FALSE;
|
|
$this->_drop_table_if = FALSE;
|
|
}
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Create database
|
|
*
|
|
* @param string $db_name
|
|
* @return bool
|
|
*/
|
|
public function create_database($db_name)
|
|
{
|
|
// In SQLite, a database is created when you connect to the database.
|
|
// We'll return TRUE so that an error isn't generated
|
|
return TRUE;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Drop database
|
|
*
|
|
* @param string $db_name (ignored)
|
|
* @return bool
|
|
*/
|
|
public function drop_database($db_name)
|
|
{
|
|
// In SQLite, a database is dropped when we delete a file
|
|
if (file_exists($this->db->database))
|
|
{
|
|
// We need to close the pseudo-connection first
|
|
$this->db->close();
|
|
if ( ! @unlink($this->db->database))
|
|
{
|
|
return $this->db->db_debug ? $this->db->display_error('db_unable_to_drop') : FALSE;
|
|
}
|
|
elseif ( ! empty($this->db->data_cache['db_names']))
|
|
{
|
|
$key = array_search(strtolower($this->db->database), array_map('strtolower', $this->db->data_cache['db_names']), TRUE);
|
|
if ($key !== FALSE)
|
|
{
|
|
unset($this->db->data_cache['db_names'][$key]);
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
return $this->db->db_debug ? $this->db->display_error('db_unable_to_drop') : FALSE;
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* ALTER TABLE
|
|
*
|
|
* @todo implement drop_column(), modify_column()
|
|
* @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' OR $alter_type === 'CHANGE')
|
|
{
|
|
// drop_column():
|
|
// BEGIN TRANSACTION;
|
|
// CREATE TEMPORARY TABLE t1_backup(a,b);
|
|
// INSERT INTO t1_backup SELECT a,b FROM t1;
|
|
// DROP TABLE t1;
|
|
// CREATE TABLE t1(a,b);
|
|
// INSERT INTO t1 SELECT a,b FROM t1_backup;
|
|
// DROP TABLE t1_backup;
|
|
// COMMIT;
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
return parent::_alter_table($alter_type, $table, $field);
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Process column
|
|
*
|
|
* @param array $field
|
|
* @return string
|
|
*/
|
|
protected function _process_column($field)
|
|
{
|
|
return $this->db->escape_identifiers($field['name'])
|
|
.' '.$field['type']
|
|
.$field['auto_increment']
|
|
.$field['null']
|
|
.$field['unique']
|
|
.$field['default'];
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Field attribute TYPE
|
|
*
|
|
* Performs a data type mapping between different databases.
|
|
*
|
|
* @param array &$attributes
|
|
* @return void
|
|
*/
|
|
protected function _attr_type(&$attributes)
|
|
{
|
|
switch (strtoupper($attributes['TYPE']))
|
|
{
|
|
case 'ENUM':
|
|
case 'SET':
|
|
$attributes['TYPE'] = 'TEXT';
|
|
return;
|
|
default: return;
|
|
}
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
/**
|
|
* Field attribute AUTO_INCREMENT
|
|
*
|
|
* @param array &$attributes
|
|
* @param array &$field
|
|
* @return void
|
|
*/
|
|
protected function _attr_auto_increment(&$attributes, &$field)
|
|
{
|
|
if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE && stripos($field['type'], 'int') !== FALSE)
|
|
{
|
|
$field['type'] = 'INTEGER PRIMARY KEY';
|
|
$field['default'] = '';
|
|
$field['null'] = '';
|
|
$field['unique'] = '';
|
|
$field['auto_increment'] = ' AUTOINCREMENT';
|
|
|
|
$this->primary_keys = array();
|
|
}
|
|
}
|
|
|
|
}
|