bee工具管理遷移文件migration

1、創建遷移文件

bee generate migration admins

在項目目錄下直接運行命令，它會默認在當前目錄下創建database/migrations目錄，然後生成對應的遷移文件。

2、通過遷移文件編寫數據表信息

package main

import (
	"github.com/beego/beego/v2/client/orm/migration"
)

// DO NOT MODIFY
type Admin_20220116_002621 struct {
	migration.Migration
}

// DO NOT MODIFY
func init() {
	m := &Admin_20220116_002621{}
	m.Created = "20220116_002621"

	migration.Register("Admin_20220116_002621", m)
}

// Run the migrations
func (m *Admin_20220116_002621) Up() {
	// use m.SQL("CREATE TABLE ...") to make schema update
	m.CreateTable("admins", "innodb", "utf8mb4")
	m.PriCol("id").SetAuto(true).SetDataType("int").SetUnsigned(true)
	m.UniCol("userid", "user_id").SetDataType("int").SetNullable(false)
	m.NewCol("is_super").SetDataType("tinyint").SetUnsigned(true).SetDefault("1")
	m.NewCol("name").SetDataType("char(32)").SetDefault("''")
	m.NewCol("created_at").SetDataType("datetime")
	m.NewCol("updated_at").SetDataType("datetime")
	m.SQL(m.GetSQL())
}

// Reverse the migrations
func (m *Admin_20220116_002621) Down() {
	// use m.SQL("DROP TABLE ...") to reverse schema update
	m.SQL("DROP TABLE IF EXISTS admins")
}

3、運行遷移文件

bee migrate -conn="root:@tcp(127.0.0.1:3306)/ddshop"

運行結果如下：

F:\go_course\shop\shopapi>bee migrate -conn="root:@tcp(127.0.0.1:3306)/ddshop"
______
| ___ \
| |_/ /  ___   ___
| ___ \ / _ \ / _ \
| |_/ /|  __/|  __/
\____/  \___| \___| v2.0.2
2022/01/16 00:32:50 INFO     ▶ 0001 Using 'mysql' as 'driver'
2022/01/16 00:32:50 INFO     ▶ 0002 Using 'F:\go_course\shop\shopapi/database/migrations' as 'dir'
2022/01/16 00:32:50 INFO     ▶ 0003 Running all outstanding migrations
2022/01/16 00:32:54 INFO     ▶ 0004 |> 2022/01/16 00:32:52.524 [I]  start upgrade Admin_20220116_002621
2022/01/16 00:32:54 INFO     ▶ 0005 |> 2022/01/16 00:32:52.525 [I]  exec sql: CREATE TABLE `admins` (
2022/01/16 00:32:54 INFO     ▶ 0006 |>  `id` int UNSIGNED  auto_increment ,
2022/01/16 00:32:54 INFO     ▶ 0007 |>  `user_id` int  NOT NULL  ,
2022/01/16 00:32:54 INFO     ▶ 0008 |>  `is_super` tinyint UNSIGNED   DEFAULT 1,
2022/01/16 00:32:54 INFO     ▶ 0009 |>  `name` char(32)    DEFAULT '',
2022/01/16 00:32:54 INFO     ▶ 0010 |>  `created_at` datetime    ,
2022/01/16 00:32:54 INFO     ▶ 0011 |>  `updated_at` datetime    ,
2022/01/16 00:32:54 INFO     ▶ 0012 |>  PRIMARY KEY(  `id`),
2022/01/16 00:32:54 INFO     ▶ 0013 |>  UNIQUE KEY `userid`(  `user_id`))ENGINE=innodb DEFAULT CHARSET=utf8mb4;
2022/01/16 00:32:54 INFO     ▶ 0014 |> 2022/01/16 00:32:52.548 [I]  end upgrade: Admin_20220116_002621
2022/01/16 00:32:54 INFO     ▶ 0015 |> 2022/01/16 00:32:52.548 [I]  total success upgrade: 1  migration
2022/01/16 00:32:54 SUCCESS  ▶ 0016 Migration successful!

運行結束後觀察一下數據庫是否有創建對應的遷移信息

4、修改字段

bee generate migration admin_modify_name_column

// Run the migrations
func (m *AdminModifyNameColumn_20220116_003615) Up() {
	// use m.SQL("CREATE TABLE ...") to make schema update
	m.AlterTable("admins")
	m.RenameColumn("name", "name").SetDataType("char(32)").SetDefault("'admin'")
	m.SQL(m.GetSQL())
}

5、添加字段

bee generate migration admin_add_role_column