mirror of
https://github.com/astaxie/beego.git
synced 2024-12-28 09:45:47 +00:00
510dd02a06
Increase the init method by adding the `RunSyncdb` method to resolve the problem that the table is not created.
160 lines
2.9 KiB
Markdown
160 lines
2.9 KiB
Markdown
# beego orm
|
||
|
||
[](https://drone.io/github.com/astaxie/beego/latest)
|
||
|
||
A powerful orm framework for go.
|
||
|
||
It is heavily influenced by Django ORM, SQLAlchemy.
|
||
|
||
**Support Database:**
|
||
|
||
* MySQL: [github.com/go-sql-driver/mysql](https://github.com/go-sql-driver/mysql)
|
||
* PostgreSQL: [github.com/lib/pq](https://github.com/lib/pq)
|
||
* Sqlite3: [github.com/mattn/go-sqlite3](https://github.com/mattn/go-sqlite3)
|
||
|
||
Passed all test, but need more feedback.
|
||
|
||
**Features:**
|
||
|
||
* full go type support
|
||
* easy for usage, simple CRUD operation
|
||
* auto join with relation table
|
||
* cross DataBase compatible query
|
||
* Raw SQL query / mapper without orm model
|
||
* full test keep stable and strong
|
||
|
||
more features please read the docs
|
||
|
||
**Install:**
|
||
|
||
go get github.com/astaxie/beego/orm
|
||
|
||
## Changelog
|
||
|
||
* 2013-08-19: support table auto create
|
||
* 2013-08-13: update test for database types
|
||
* 2013-08-13: go type support, such as int8, uint8, byte, rune
|
||
* 2013-08-13: date / datetime timezone support very well
|
||
|
||
## Quick Start
|
||
|
||
#### Simple Usage
|
||
|
||
```go
|
||
package main
|
||
|
||
import (
|
||
"fmt"
|
||
"github.com/astaxie/beego/orm"
|
||
_ "github.com/go-sql-driver/mysql" // import your used driver
|
||
)
|
||
|
||
// Model Struct
|
||
type User struct {
|
||
Id int `orm:"auto"`
|
||
Name string `orm:"size(100)"`
|
||
}
|
||
|
||
func init() {
|
||
// register model
|
||
orm.RegisterModel(new(User))
|
||
|
||
// set default database
|
||
orm.RegisterDataBase("default", "mysql", "root:root@/my_db?charset=utf8", 30)
|
||
|
||
// create table
|
||
orm.RunSyncdb("default", false, true)
|
||
}
|
||
|
||
func main() {
|
||
o := orm.NewOrm()
|
||
|
||
user := User{Name: "slene"}
|
||
|
||
// insert
|
||
id, err := o.Insert(&user)
|
||
|
||
// update
|
||
user.Name = "astaxie"
|
||
num, err := o.Update(&user)
|
||
|
||
// read one
|
||
u := User{Id: user.Id}
|
||
err = o.Read(&u)
|
||
|
||
// delete
|
||
num, err = o.Delete(&u)
|
||
}
|
||
```
|
||
|
||
#### Next with relation
|
||
|
||
```go
|
||
type Post struct {
|
||
Id int `orm:"auto"`
|
||
Title string `orm:"size(100)"`
|
||
User *User `orm:"rel(fk)"`
|
||
}
|
||
|
||
var posts []*Post
|
||
qs := o.QueryTable("post")
|
||
num, err := qs.Filter("User__Name", "slene").All(&posts)
|
||
```
|
||
|
||
#### Use Raw sql
|
||
|
||
If you don't like ORM，use Raw SQL to query / mapping without ORM setting
|
||
|
||
```go
|
||
var maps []Params
|
||
num, err := o.Raw("SELECT id FROM user WHERE name = ?", "slene").Values(&maps)
|
||
if num > 0 {
|
||
fmt.Println(maps[0]["id"])
|
||
}
|
||
```
|
||
|
||
#### Transaction
|
||
|
||
```go
|
||
o.Begin()
|
||
...
|
||
user := User{Name: "slene"}
|
||
id, err := o.Insert(&user)
|
||
if err == nil {
|
||
o.Commit()
|
||
} else {
|
||
o.Rollback()
|
||
}
|
||
|
||
```
|
||
|
||
#### Debug Log Queries
|
||
|
||
In development env, you can simple use
|
||
|
||
```go
|
||
func main() {
|
||
orm.Debug = true
|
||
...
|
||
```
|
||
|
||
enable log queries.
|
||
|
||
output include all queries, such as exec / prepare / transaction.
|
||
|
||
like this:
|
||
|
||
```go
|
||
[ORM] - 2013-08-09 13:18:16 - [Queries/default] - [ db.Exec / 0.4ms] - [INSERT INTO `user` (`name`) VALUES (?)] - `slene`
|
||
...
|
||
```
|
||
|
||
note: not recommend use this in product env.
|
||
|
||
## Docs
|
||
|
||
more details and examples in docs and test
|
||
|
||
[documents](http://beego.me/docs/mvc/model/overview.md)
|
||
|