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.. | ||
CustomFields.md | ||
Models.md | ||
Models.sql | ||
Object.md | ||
Orm.md | ||
Query.md | ||
README.md |
beego orm 介绍
快速入门
package main
import (
"fmt"
"github.com/astaxie/beego/orm"
_ "github.com/go-sql-driver/mysql"
)
// 最简单的两个表的定义
type User struct {
Id int `orm:"auto"`
Name string `orm:"size(100)"`
orm.Manager
}
type Post struct {
Id int `orm:"auto"`
User *User `orm:"rel(fk)"`
Title string `orm:"size(100)"`
Content string
orm.Manager
}
func init() {
// 将表定义注册到 orm 里
orm.RegisterModel(new(User))
orm.RegisterModel(new(Post))
// 链接参数设置
orm.RegisterDataBase("default", "mysql", "root:root@/my_db?charset=utf8", 30)
}
func main() {
orm.BootStrap() // 确保在所有 RegisterModel 之后执行
o := orm.NewOrm()
var user User
obj := o.Object(&user)
// 创建
user.Name = "slene"
id, err := obj.Insert()
fmt.Println(id, err)
// 更新
user.Name = "astaxie"
num, err := obj.Update()
fmt.Println(num, err)
// 查询单个
var u User
err = o.QueryTable("user").Filter("id", &user).One(&u)
fmt.Println(u.Id, u.Name, err)
// 创建 post
var post Post
post.Title = "beego orm"
post.Content = "powerful amazing"
post.User = &u
id, err = o.Object(&post).Insert()
fmt.Println(id, err)
// 当然,以 map[string]interface{} 形式的数据返回也是允许的
var maps []orm.Params
num, err = o.QueryTable("user").Filter("id", &u).Values(&maps)
fmt.Println(num, err, maps[0])
// 删除
num, err = obj.Delete() // 默认,级联删除 user 以及关系存在的 post
fmt.Println(num, err)
}
详细文档
- Model Definition
- Custom Fields
- Orm
- Object
- Query
- Condition
- Raw
- Transaction
- Faq