发布网友 发布时间:2022-04-28 06:51
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懂视网 时间:2022-04-28 11:12
下面由thinkphp框架教程栏目给大家介绍thinkPHP使用migrate实现数据库迁移的方法,希望对需要的朋友有所帮助!
thinkPHP使用migrate实现数据库迁移
thinkPHP的数据库迁移工具:topthink/think-migration
一:安装topthink/think-migration
这里注意你安装topthink/think-migration时需要注意你的thinkPHP版本,这里我的thinkPHP版本为5.1,所以可以安装topthink/think-migration的2.0版本,无法安装3.0版本,选择你适合的版本进行安装
composer require topthink/think-migration=2.0.*
安装完成之后在命令行执行:
php think
如下表示migrate安装成功
二:使用topthink/think-migration实现数据库迁移
1:创建迁移类
在命令行执行
php think migrate:create CreateUser
执行完成之后我们就和在./database/migrateions目录下创建一个migrate迁移文件
2:实现数据库迁移
migrate方法使用文档:http://docs.phinx.org/en/latest/migrations.html
[1]:migrate代码说明:
在migrate中有三个方法
up:在migrate:run时执行(前提是文件中不存在change方法)
down:在migrate:rollback时执行(前提是文件中不存在change方法)
change:migrate:run 和migrate:rollback时执行 (如果存在该方法 则不会去执行up 与down)
一般情况下我一般将migrate文件中的change方法删除,up方法专门放置新增和更新表的操作,down方法放置删除表和删除字段操作
(1)新增表:
// create the table $table = $this->table('user', ['id' => 'user_id', 'comment' => '用户表', 'engine' => 'MyISAM', '']); $table->addColumn('user_name', 'string', ['limit' => 15, 'default' => '', 'comment' => '用户名']) ->addColumn('password', 'string', ['limit' => 15, 'default' => '', 'comment' => '密码',]) ->addColumn('status', 'boolean', ['limit' => 1, 'default' => 0, 'comment' => '状态']) ->addIndex(['user_name'], ['unique' => true])//为user_name创建索引并设置唯一(唯一索引) ->addTimestamps()//默认生成create_time和update_time两个字段 ->create();
(2)更新表:
$this->table('user') ->addColumn('test', 'string', ['limit' => 15, 'default' => '', 'comment' => '测试'])//在user表中增加一个test字段 ->update();
(3)删除表:
$this->table('user')->drop();
(4)删除字段
$this->table('user') ->removeColumn('test')//删除user表中的test字段 ->save();
[2]:migrate命令:
migrate常用的命令有三个,分别为:
php think migrate:create CreateUser #创建一个迁移类 php think migrate:run #执行迁移 php think migrate:rollback #迁移回滚
热心网友 时间:2022-04-28 08:20
建表
phinx\bin\phinx.bat migrate -e proction
建设 phinx.yml文件
paths:
migrations: %%PHINX_CONFIG_DIR%%\database\migrations
seeds: %%PHINX_CONFIG_DIR%%\database\seeds
environments:
default_migration_table: phinxlog
default_database: development
proction:
adapter: mysql
host: localhost
name: jitamin2
user: root
pass: ‘‘
port: 3306
charset: utf8
development:
adapter: mysql
host: localhost
name: development_db
user: root
pass: ‘‘
port: 3306
charset: utf8
testing:
adapter: mysql
host: localhost
name: testing_db
user: root
pass: ‘‘
port: 3306
charset: utf8
数据迁移命令如下:
phinx\bin\phinx.bat seed:run -e proction
%%PHINX_CONFIG_DIR%%\database\seeds下面的文件示例CreateGroupsTable.php如下:
<?php
/*
* This file is part of Jitamin.
*
* Copyright (C) Jitamin Team
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
use Jitamin\Foundation\Security\Role;
use Phinx\Seed\AbstractSeed;
class UserSeeder extends AbstractSeed
{
/**
* Run Method.
*/
public function run()
{
$data = [
[
‘username‘ => ‘admin‘,
‘password‘ => bcrypt(‘admin‘),
‘email‘ => ‘admin@admin.com‘,
‘role‘ => Role::APP_ADMIN,
],
];
$users = $this->table(‘users‘);
$users->insert($data)
->save();
}
}