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110 lines
2.9 KiB
110 lines
2.9 KiB
<?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
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*
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* This content is released under the MIT License (MIT)
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*
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* Copyright (c) 2014-2019 British Columbia Institute of Technology
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* Copyright (c) 2019 CodeIgniter Foundation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* @package CodeIgniter
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* @author CodeIgniter Dev Team
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* @copyright 2019 CodeIgniter Foundation
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* @license https://opensource.org/licenses/MIT MIT License
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* @link https://codeigniter.com
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* @since Version 4.0.0
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* @filesource
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*/
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namespace CodeIgniter\Database;
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/**
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* Class Migration
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*/
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abstract class Migration
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{
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/**
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* The name of the database group to use.
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*
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* @var string
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*/
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protected $DBGroup;
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/**
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* Database Connection instance
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*
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* @var BaseConnection
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*/
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protected $db;
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/**
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* Database Forge instance.
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*
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* @var Forge
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*/
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protected $forge;
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//--------------------------------------------------------------------
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/**
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* Constructor.
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*
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* @param \CodeIgniter\Database\Forge $forge
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*/
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public function __construct(Forge $forge = null)
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{
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$this->forge = ! is_null($forge) ? $forge : \Config\Database::forge($this->DBGroup ?? config('Database')->defaultGroup);
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$this->db = $this->forge->getConnection();
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}
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//--------------------------------------------------------------------
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/**
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* Returns the database group name this migration uses.
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*
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* @return string
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*/
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public function getDBGroup(): ?string
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{
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return $this->DBGroup;
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}
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//--------------------------------------------------------------------
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/**
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* Perform a migration step.
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*/
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abstract public function up();
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//--------------------------------------------------------------------
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/**
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* Revert a migration step.
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*/
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abstract public function down();
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//--------------------------------------------------------------------
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}
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