Merge pull request #773 from vCaesar/u5-pr

Update preface word and Update mgo
This commit is contained in:
astaxie
2017-01-08 21:28:03 +08:00
committed by GitHub
9 changed files with 174 additions and 134 deletions

View File

@@ -66,44 +66,49 @@ The best driver for mongoDB is called `mgo`, and it is possible that it will be
Here is the example:
```Go
package main
import (
"fmt"
"labix.org/v2/mgo"
"labix.org/v2/mgo/bson"
"fmt"
"gopkg.in/mgo.v2"
"gopkg.in/mgo.v2/bson"
"log"
)
type Person struct {
Name string
Phone string
}
func main() {
session, err := mgo.Dial("server1.example.com,server2.example.com")
if err != nil {
panic(err)
}
defer session.Close()
session.SetMode(mgo.Monotonic, true)
c := session.DB("test").C("people")
err = c.Insert(&Person{"Ale", "+55 53 8116 9639"},
&Person{"Cla", "+55 53 8402 8510"})
if err != nil {
panic(err)
}
result := Person{}
err = c.Find(bson.M{"name": "Ale"}).One(&result)
if err != nil {
panic(err)
}
fmt.Println("Phone:", result.Phone)
Name string
Phone string
}
func main() {
session, err := mgo.Dial("server1.example.com,server2.example.com")
if err != nil {
panic(err)
}
defer session.Close()
// Optional. Switch the session to a monotonic behavior.
session.SetMode(mgo.Monotonic, true)
c := session.DB("test").C("people")
err = c.Insert(&Person{"Ale", "+55 53 8116 9639"},
&Person{"Cla", "+55 53 8402 8510"})
if err != nil {
log.Fatal(err)
}
result := Person{}
err = c.Find(bson.M{"name": "Ale"}).One(&result)
if err != nil {
log.Fatal(err)
}
fmt.Println("Phone:", result.Phone)
}
```
We can see that there are no big differences when it comes to operating on mgo or beedb databases; they are both based on structs. This is the Go way of doing things.
## Links

View File

@@ -10,10 +10,10 @@ redis is a key-value storage system like Memcached, that supports the string, li
There are some Go database drivers for redis:
- [https://github.com/garyburd/redigo](https://github.com/garyburd/redigo)
- [https://github.com/go-redis/redis](https://github.com/go-redis/redis)
- [https://github.com/hoisie/redis](https://github.com/hoisie/redis)
- [https://github.com/alphazero/Go-Redis](https://github.com/alphazero/Go-Redis)
- [http://code.google.com/p/tideland-rdc/](http://code.google.com/p/tideland-rdc/)
- [https://github.com/simonz05/godis](https://github.com/simonz05/godis)
- [https://github.com/hoisie/redis.go](https://github.com/hoisie/redis.go)
Let's see how to use the driver that redigo to operate on a database:
```Go
@@ -142,46 +142,57 @@ Figure 5.1 MongoDB compared to Mysql
The best driver for mongoDB is called `mgo`, and it is possible that it will be included in the standard library in the future.
Install mgo:
```Go
go get gopkg.in/mgo.v2
```
Here is the example:
```Go
package main
import (
"fmt"
"labix.org/v2/mgo"
"labix.org/v2/mgo/bson"
"fmt"
"gopkg.in/mgo.v2"
"gopkg.in/mgo.v2/bson"
"log"
)
type Person struct {
Name string
Phone string
Name string
Phone string
}
func main() {
session, err := mgo.Dial("server1.example.com,server2.example.com")
if err != nil {
panic(err)
}
defer session.Close()
session.SetMode(mgo.Monotonic, true)
c := session.DB("test").C("people")
err = c.Insert(&Person{"Ale", "+55 53 8116 9639"},
&Person{"Cla", "+55 53 8402 8510"})
if err != nil {
panic(err)
}
result := Person{}
err = c.Find(bson.M{"name": "Ale"}).One(&result)
if err != nil {
panic(err)
}
fmt.Println("Phone:", result.Phone)
session, err := mgo.Dial("server1.example.com,server2.example.com")
if err != nil {
panic(err)
}
defer session.Close()
// Optional. Switch the session to a monotonic behavior.
session.SetMode(mgo.Monotonic, true)
c := session.DB("test").C("people")
err = c.Insert(&Person{"Ale", "+55 53 8116 9639"},
&Person{"Cla", "+55 53 8402 8510"})
if err != nil {
log.Fatal(err)
}
result := Person{}
err = c.Find(bson.M{"name": "Ale"}).One(&result)
if err != nil {
log.Fatal(err)
}
fmt.Println("Phone:", result.Phone)
}
```
We can see that there are no big differences when it comes to operating on mgo or beedb databases; they are both based on structs. This is the Go way of doing things.
## Links

View File

@@ -65,44 +65,48 @@ Figura 5.1 MongoDB comparada con Mysql
El mejor manejador para mongoDB es llamado `mgo`, y es posible que se incluya en la librería estándar en el futuro.
Aquí está un ejemplo
```
```Go
package main
import (
"fmt"
"labix.org/v2/mgo"
"labix.org/v2/mgo/bson"
"fmt"
"gopkg.in/mgo.v2"
"gopkg.in/mgo.v2/bson"
"log"
)
type Person struct {
Name string
Phone string
Name string
Phone string
}
func main() {
session, err := mgo.Dial("server1.example.com,server2.example.com")
if err != nil {
panic(err)
}
defer session.Close()
session, err := mgo.Dial("server1.example.com,server2.example.com")
if err != nil {
panic(err)
}
defer session.Close()
session.SetMode(mgo.Monotonic, true)
// Optional. Switch the session to a monotonic behavior.
session.SetMode(mgo.Monotonic, true)
c := session.DB("test").C("people")
err = c.Insert(&Person{"Ale", "+55 53 8116 9639"},
&Person{"Cla", "+55 53 8402 8510"})
if err != nil {
panic(err)
}
c := session.DB("test").C("people")
err = c.Insert(&Person{"Ale", "+55 53 8116 9639"},
&Person{"Cla", "+55 53 8402 8510"})
if err != nil {
log.Fatal(err)
}
result := Person{}
err = c.Find(bson.M{"name": "Ale"}).One(&result)
if err != nil {
panic(err)
}
result := Person{}
err = c.Find(bson.M{"name": "Ale"}).One(&result)
if err != nil {
log.Fatal(err)
}
fmt.Println("Phone:", result.Phone)
fmt.Println("Phone:", result.Phone)
}
```
Como podemos ver no hay muchas diferencias en lo que respecta a operar con mgo o bases de datos beedb; ambas son basadas en estructuras. Esta es la manera en que Go hace las cosas.

View File

@@ -66,16 +66,19 @@ MongoDBは高性能でオープンソース、モードレスなドキュメン
次にどのようにしてGoからmongoDBを操作するのかご説明します
```Go
package main
import (
"fmt"
"labix.org/v2/mgo"
"labix.org/v2/mgo/bson"
"gopkg.in/mgo.v2"
"gopkg.in/mgo.v2/bson"
"log"
)
type Person struct {
Name string
Name string
Phone string
}
@@ -86,24 +89,27 @@ MongoDBは高性能でオープンソース、モードレスなドキュメン
}
defer session.Close()
// Optional. Switch the session to a monotonic behavior.
session.SetMode(mgo.Monotonic, true)
c := session.DB("test").C("people")
err = c.Insert(&Person{"Ale", "+55 53 8116 9639"},
&Person{"Cla", "+55 53 8402 8510"})
if err != nil {
panic(err)
log.Fatal(err)
}
result := Person{}
err = c.Find(bson.M{"name": "Ale"}).One(&result)
if err != nil {
panic(err)
log.Fatal(err)
}
fmt.Println("Phone:", result.Phone)
}
```
mgoの操作方法とbeedbの操作方法はほとんど似ていることがわかります。どちらもstructに基づいて操作する方法です。これこそがGo Styleです。

View File

@@ -66,44 +66,50 @@ The best driver for mongoDB is called `mgo`, and it is possible that it will be
Here is the example:
```Go
package main
import (
"fmt"
"labix.org/v2/mgo"
"labix.org/v2/mgo/bson"
"fmt"
"gopkg.in/mgo.v2"
"gopkg.in/mgo.v2/bson"
"log"
)
type Person struct {
Name string
Phone string
Name string
Phone string
}
func main() {
session, err := mgo.Dial("server1.example.com,server2.example.com")
if err != nil {
panic(err)
}
defer session.Close()
session.SetMode(mgo.Monotonic, true)
c := session.DB("test").C("people")
err = c.Insert(&Person{"Ale", "+55 53 8116 9639"},
&Person{"Cla", "+55 53 8402 8510"})
if err != nil {
panic(err)
}
result := Person{}
err = c.Find(bson.M{"name": "Ale"}).One(&result)
if err != nil {
panic(err)
}
fmt.Println("Phone:", result.Phone)
session, err := mgo.Dial("server1.example.com,server2.example.com")
if err != nil {
panic(err)
}
defer session.Close()
// Optional. Switch the session to a monotonic behavior.
session.SetMode(mgo.Monotonic, true)
c := session.DB("test").C("people")
err = c.Insert(&Person{"Ale", "+55 53 8116 9639"},
&Person{"Cla", "+55 53 8402 8510"})
if err != nil {
log.Fatal(err)
}
result := Person{}
err = c.Find(bson.M{"name": "Ale"}).One(&result)
if err != nil {
log.Fatal(err)
}
fmt.Println("Phone:", result.Phone)
}
```
We can see that there are no big differences when it comes to operating on mgo or beedb databases; they are both based on structs. This is the Go way of doing things.
## Links

View File

@@ -20,4 +20,4 @@ Go是一种编译型语言它结合了解释型语言的游刃有余动态
## links
* [目录](<preface.md>)
* 下一节: [Go安装](<01.1.md>)
* 下一节: [安装Go](<01.1.md>)

View File

@@ -176,5 +176,5 @@ go get本质上可以理解为首先第一步是通过源码工具clone代码到
## links
* [目录](<preface.md>)
* 上一节: [GO安装](<01.1.md>)
* 上一节: [安装Go](<01.1.md>)
* 下一节: [GO 命令](<01.3.md>)

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@@ -131,4 +131,4 @@ Go实现的支持PostgreSQL的驱动也很多因为国外很多人在开发
## links
* [目录](<preface.md>)
* 上一节: [使用SQLite数据库](<05.3.md>)
* 下一节: [使用beedb库进行ORM开发](<05.5.md>)
* 下一节: [使用Beego orm库进行ORM开发](<05.5.md>)

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@@ -10,10 +10,10 @@ redis是一个key-value存储系统。和Memcached类似它支持存储的val
Go目前支持redis的驱动有如下
- https://github.com/garyburd/redigo (推荐)
- https://github.com/go-redis/redis
- https://github.com/hoisie/redis
- https://github.com/alphazero/Go-Redis
- http://code.google.com/p/tideland-rdc/
- https://github.com/simonz05/godis
- https://github.com/hoisie/redis.go
我以redigo驱动为例来演示如何进行数据的操作:
```Go
@@ -145,6 +145,12 @@ MongoDB是一个高性能开源无模式的文档型数据库是一个
目前Go支持mongoDB最好的驱动就是[mgo](http://labix.org/mgo)这个驱动目前最有可能成为官方的pkg。
安装mgo:
```Go
go get gopkg.in/mgo.v2
```
下面我将演示如何通过Go来操作mongoDB
```Go
@@ -152,12 +158,13 @@ MongoDB是一个高性能开源无模式的文档型数据库是一个
import (
"fmt"
"labix.org/v2/mgo"
"labix.org/v2/mgo/bson"
"gopkg.in/mgo.v2"
"gopkg.in/mgo.v2/bson"
"log"
)
type Person struct {
Name string
Name string
Phone string
}
@@ -168,19 +175,20 @@ MongoDB是一个高性能开源无模式的文档型数据库是一个
}
defer session.Close()
// Optional. Switch the session to a monotonic behavior.
session.SetMode(mgo.Monotonic, true)
c := session.DB("test").C("people")
err = c.Insert(&Person{"Ale", "+55 53 8116 9639"},
&Person{"Cla", "+55 53 8402 8510"})
if err != nil {
panic(err)
log.Fatal(err)
}
result := Person{}
err = c.Find(bson.M{"name": "Ale"}).One(&result)
if err != nil {
panic(err)
log.Fatal(err)
}
fmt.Println("Phone:", result.Phone)
@@ -193,5 +201,5 @@ MongoDB是一个高性能开源无模式的文档型数据库是一个
## links
* [目录](<preface.md>)
* 上一节: [使用beedb库进行ORM开发](<05.5.md>)
* 上一节: [使用Beego orm库进行ORM开发](<05.5.md>)
* 下一节: [小结](<05.7.md>)