improved readme
This commit is contained in:
parent
3d65e0edb7
commit
db3ab86e8c
52
README.md
52
README.md
|
@ -39,7 +39,7 @@ Drivers for Go's sql package which currently support database/sql includes:
|
||||||
|
|
||||||
1.Create a database engine just like sql.Open, commonly you just need create once.
|
1.Create a database engine just like sql.Open, commonly you just need create once.
|
||||||
|
|
||||||
```Go
|
```
|
||||||
import (
|
import (
|
||||||
_ "github.com/Go-SQL-Driver/MySQL"
|
_ "github.com/Go-SQL-Driver/MySQL"
|
||||||
"github.com/lunny/xorm"
|
"github.com/lunny/xorm"
|
||||||
|
@ -49,7 +49,7 @@ engine := xorm.Create("mysql", "root:123@/test?charset=utf8")
|
||||||
|
|
||||||
or
|
or
|
||||||
|
|
||||||
```Go
|
```
|
||||||
import (
|
import (
|
||||||
_ "github.com/mattn/go-sqlite3"
|
_ "github.com/mattn/go-sqlite3"
|
||||||
"github.com/lunny/xorm"
|
"github.com/lunny/xorm"
|
||||||
|
@ -57,9 +57,15 @@ import (
|
||||||
engine = xorm.Create("sqlite3", "./test.db")
|
engine = xorm.Create("sqlite3", "./test.db")
|
||||||
```
|
```
|
||||||
|
|
||||||
|
1.1.If you want to show all generated SQL
|
||||||
|
|
||||||
|
```
|
||||||
|
engine.ShowSQL = true
|
||||||
|
```
|
||||||
|
|
||||||
2.Define a struct
|
2.Define a struct
|
||||||
|
|
||||||
```Go
|
```
|
||||||
type User struct {
|
type User struct {
|
||||||
Id int
|
Id int
|
||||||
Name string
|
Name string
|
||||||
|
@ -67,9 +73,11 @@ type User struct {
|
||||||
}
|
}
|
||||||
```
|
```
|
||||||
|
|
||||||
|
2.1.More mapping rules, please see [Mapping Rules](#-8)
|
||||||
|
|
||||||
3.When you set up your program, you can use CreateTables to create database tables.
|
3.When you set up your program, you can use CreateTables to create database tables.
|
||||||
|
|
||||||
```Go
|
```
|
||||||
err := engine.CreateTables(&User{})
|
err := engine.CreateTables(&User{})
|
||||||
// or err := engine.Map(&User{}, &Article{})
|
// or err := engine.Map(&User{}, &Article{})
|
||||||
// err = engine.CreateAll()
|
// err = engine.CreateAll()
|
||||||
|
@ -77,13 +85,13 @@ err := engine.CreateTables(&User{})
|
||||||
|
|
||||||
4.then, insert an struct to table
|
4.then, insert an struct to table
|
||||||
|
|
||||||
```Go
|
```
|
||||||
id, err := engine.Insert(&User{Name:"lunny"})
|
id, err := engine.Insert(&User{Name:"lunny"})
|
||||||
```
|
```
|
||||||
|
|
||||||
or if you want to update records
|
or if you want to update records
|
||||||
|
|
||||||
```Go
|
```
|
||||||
user := User{Name:"xlw"}
|
user := User{Name:"xlw"}
|
||||||
rows, err := engine.Update(&user, &User{Id:1})
|
rows, err := engine.Update(&user, &User{Id:1})
|
||||||
// or rows, err := engine.Where("id = ?", 1).Update(&user)
|
// or rows, err := engine.Where("id = ?", 1).Update(&user)
|
||||||
|
@ -92,7 +100,7 @@ rows, err := engine.Update(&user, &User{Id:1})
|
||||||
|
|
||||||
5.Fetch a single object by user
|
5.Fetch a single object by user
|
||||||
|
|
||||||
```Go
|
```
|
||||||
var user = User{Id:27}
|
var user = User{Id:27}
|
||||||
err := engine.Get(&user)
|
err := engine.Get(&user)
|
||||||
// or err := engine.Id(27).Get(&user)
|
// or err := engine.Id(27).Get(&user)
|
||||||
|
@ -103,42 +111,42 @@ err := engine.Get(&user)
|
||||||
|
|
||||||
6.Fetch multipe objects, use Find:
|
6.Fetch multipe objects, use Find:
|
||||||
|
|
||||||
```Go
|
```
|
||||||
var everyone []Userinfo
|
var everyone []Userinfo
|
||||||
err := engine.Find(&everyone)
|
err := engine.Find(&everyone)
|
||||||
```
|
```
|
||||||
|
|
||||||
6.1 also you can use Where, Limit
|
6.1 also you can use Where, Limit
|
||||||
|
|
||||||
```Go
|
```
|
||||||
var allusers []Userinfo
|
var allusers []Userinfo
|
||||||
err := engine.Where("id > ?", "3").Limit(10,20).Find(&allusers) //Get id>3 limit 10 offset 20
|
err := engine.Where("id > ?", "3").Limit(10,20).Find(&allusers) //Get id>3 limit 10 offset 20
|
||||||
```
|
```
|
||||||
|
|
||||||
6.2 or you can use a struct query
|
6.2 or you can use a struct query
|
||||||
|
|
||||||
```Go
|
```
|
||||||
var tenusers []Userinfo
|
var tenusers []Userinfo
|
||||||
err := engine.Limit(10).Find(&tenusers, &Userinfo{Name:"xlw"}) //Get All Name="xlw" limit 10 offset 0
|
err := engine.Limit(10).Find(&tenusers, &Userinfo{Name:"xlw"}) //Get All Name="xlw" limit 10 offset 0
|
||||||
```
|
```
|
||||||
|
|
||||||
6.3 or In function
|
6.3 or In function
|
||||||
|
|
||||||
```Go
|
```
|
||||||
var tenusers []Userinfo
|
var tenusers []Userinfo
|
||||||
err := engine.In("id", 1, 3, 5).Find(&tenusers) //Get All id in (1, 3, 5)
|
err := engine.In("id", 1, 3, 5).Find(&tenusers) //Get All id in (1, 3, 5)
|
||||||
```
|
```
|
||||||
|
|
||||||
7.Delete
|
7.Delete
|
||||||
|
|
||||||
```Go
|
```
|
||||||
err := engine.Delete(&User{Id:1})
|
err := engine.Delete(&User{Id:1})
|
||||||
// or err := engine.Id(1).Delete(&User{})
|
// or err := engine.Id(1).Delete(&User{})
|
||||||
```
|
```
|
||||||
|
|
||||||
8.Count
|
8.Count
|
||||||
|
|
||||||
```Go
|
```
|
||||||
total, err := engine.Count(&User{Name:"xlw"})
|
total, err := engine.Count(&User{Name:"xlw"})
|
||||||
```
|
```
|
||||||
|
|
||||||
|
@ -147,14 +155,14 @@ Of course, SQL execution is also provided.
|
||||||
|
|
||||||
1.if select then use Query
|
1.if select then use Query
|
||||||
|
|
||||||
```Go
|
```
|
||||||
sql := "select * from userinfo"
|
sql := "select * from userinfo"
|
||||||
results, err := engine.Query(sql)
|
results, err := engine.Query(sql)
|
||||||
```
|
```
|
||||||
|
|
||||||
2.if insert, update or delete then use Exec
|
2.if insert, update or delete then use Exec
|
||||||
|
|
||||||
```Go
|
```
|
||||||
sql = "update userinfo set username=? where id=?"
|
sql = "update userinfo set username=? where id=?"
|
||||||
res, err := engine.Exec(sql, "xiaolun", 1)
|
res, err := engine.Exec(sql, "xiaolun", 1)
|
||||||
```
|
```
|
||||||
|
@ -162,7 +170,7 @@ res, err := engine.Exec(sql, "xiaolun", 1)
|
||||||
##Deep Use
|
##Deep Use
|
||||||
for deep usage, you should create a session, this func will create a database connection immediatelly
|
for deep usage, you should create a session, this func will create a database connection immediatelly
|
||||||
|
|
||||||
```Go
|
```
|
||||||
session, err := engine.MakeSession()
|
session, err := engine.MakeSession()
|
||||||
defer session.Close()
|
defer session.Close()
|
||||||
if err != nil {
|
if err != nil {
|
||||||
|
@ -172,7 +180,7 @@ if err != nil {
|
||||||
|
|
||||||
1.Fetch a single object by where
|
1.Fetch a single object by where
|
||||||
|
|
||||||
```Go
|
```
|
||||||
var user Userinfo
|
var user Userinfo
|
||||||
session.Where("id=?", 27).Get(&user)
|
session.Where("id=?", 27).Get(&user)
|
||||||
|
|
||||||
|
@ -185,7 +193,7 @@ session.Where("name = ? and age < ?", "john", 88).Get(&user4) // even more compl
|
||||||
|
|
||||||
2.Fetch multiple objects
|
2.Fetch multiple objects
|
||||||
|
|
||||||
```Go
|
```
|
||||||
var allusers []Userinfo
|
var allusers []Userinfo
|
||||||
err := session.Where("id > ?", "3").Limit(10,20).Find(&allusers) //Get id>3 limit 10 offset 20
|
err := session.Where("id > ?", "3").Limit(10,20).Find(&allusers) //Get id>3 limit 10 offset 20
|
||||||
|
|
||||||
|
@ -198,7 +206,7 @@ err := session.Find(&everyone)
|
||||||
|
|
||||||
3.Transaction
|
3.Transaction
|
||||||
|
|
||||||
```Go
|
```
|
||||||
// add Begin() before any action
|
// add Begin() before any action
|
||||||
session.Begin()
|
session.Begin()
|
||||||
user1 := Userinfo{Username: "xiaoxiao", Departname: "dev", Alias: "lunny", Created: time.Now()}
|
user1 := Userinfo{Username: "xiaoxiao", Departname: "dev", Alias: "lunny", Created: time.Now()}
|
||||||
|
@ -229,7 +237,7 @@ if err != nil {
|
||||||
|
|
||||||
4.Mixed Transaction
|
4.Mixed Transaction
|
||||||
|
|
||||||
```Go
|
```
|
||||||
// add Begin() before any action
|
// add Begin() before any action
|
||||||
session.Begin()
|
session.Begin()
|
||||||
user1 := Userinfo{Username: "xiaoxiao", Departname: "dev", Alias: "lunny", Created: time.Now()}
|
user1 := Userinfo{Username: "xiaoxiao", Departname: "dev", Alias: "lunny", Created: time.Now()}
|
||||||
|
@ -295,7 +303,7 @@ Another is use field tag, field tag support the below keywords which split with
|
||||||
|
|
||||||
For Example
|
For Example
|
||||||
|
|
||||||
```Go
|
```
|
||||||
type Userinfo struct {
|
type Userinfo struct {
|
||||||
Uid int `xorm:"id pk not null autoincr"`
|
Uid int `xorm:"id pk not null autoincr"`
|
||||||
Username string
|
Username string
|
||||||
|
@ -312,7 +320,7 @@ Please visit [GoWalker](http://gowalker.org/github.com/lunny/xorm)
|
||||||
|
|
||||||
Use space.
|
Use space.
|
||||||
|
|
||||||
```Go
|
```
|
||||||
type User struct {
|
type User struct {
|
||||||
Name string `json:"name" xorm:"name"`
|
Name string `json:"name" xorm:"name"`
|
||||||
}
|
}
|
||||||
|
|
53
README_CN.md
53
README_CN.md
|
@ -37,17 +37,17 @@ xorm是一个Go语言的ORM库. 通过它可以使数据库操作非常简便。
|
||||||
|
|
||||||
1.创建数据库引擎,这个函数的参数和sql.Open相同,但不会立即创建连接 (例如: mysql)
|
1.创建数据库引擎,这个函数的参数和sql.Open相同,但不会立即创建连接 (例如: mysql)
|
||||||
|
|
||||||
```Go
|
```
|
||||||
import (
|
import (
|
||||||
_ "github.com/Go-SQL-Driver/MySQL"
|
_ "github.com/Go-SQL-Driver/MySQL"
|
||||||
"github.com/lunny/xorm"
|
"github.com/lunny/xorm"
|
||||||
)
|
)
|
||||||
engine := xorm.Create("mysql", "root:123@/test?charset=utf8")
|
engine := xorm.Create("mysql", "root:123@/test?charset=utf8")
|
||||||
```
|
```
|
||||||
|
|
||||||
or
|
or
|
||||||
|
|
||||||
```Go
|
```
|
||||||
import (
|
import (
|
||||||
_ "github.com/mattn/go-sqlite3"
|
_ "github.com/mattn/go-sqlite3"
|
||||||
"github.com/lunny/xorm"
|
"github.com/lunny/xorm"
|
||||||
|
@ -57,13 +57,13 @@ engine = xorm.Create("sqlite3", "./test.db")
|
||||||
|
|
||||||
1.1.默认将不会显示自动生成的SQL语句,如果要显示,则需要设置
|
1.1.默认将不会显示自动生成的SQL语句,如果要显示,则需要设置
|
||||||
|
|
||||||
```Go
|
```
|
||||||
engine.ShowSQL = true
|
engine.ShowSQL = true
|
||||||
```
|
```
|
||||||
|
|
||||||
2.所有的ORM操作都针对一个或多个结构体,一个结构体对应一张表,定义一个结构体如下:
|
2.所有的ORM操作都针对一个或多个结构体,一个结构体对应一张表,定义一个结构体如下:
|
||||||
|
|
||||||
```Go
|
```
|
||||||
type User struct {
|
type User struct {
|
||||||
Id int
|
Id int
|
||||||
Name string
|
Name string
|
||||||
|
@ -71,23 +71,23 @@ type User struct {
|
||||||
}
|
}
|
||||||
```
|
```
|
||||||
|
|
||||||
2.1 详细映射规则,请查看[mapping][mapping]
|
2.1 详细映射规则,请查看[映射规则](#-8)
|
||||||
|
|
||||||
3.在程序初始化时,可能会需要创建表
|
3.在程序初始化时,可能会需要创建表
|
||||||
|
|
||||||
```Go
|
```
|
||||||
err := engine.CreateTables(&User{})
|
err := engine.CreateTables(&User{})
|
||||||
```
|
```
|
||||||
|
|
||||||
4.然后,可以将一个结构体作为一条记录插入到表中。
|
4.然后,可以将一个结构体作为一条记录插入到表中。
|
||||||
|
|
||||||
```Go
|
```
|
||||||
id, err := engine.Insert(&User{Name:"lunny"})
|
id, err := engine.Insert(&User{Name:"lunny"})
|
||||||
```
|
```
|
||||||
|
|
||||||
或者执行更新操作:
|
或者执行更新操作:
|
||||||
|
|
||||||
```Go
|
```
|
||||||
user := User{Name:"xlw"}
|
user := User{Name:"xlw"}
|
||||||
rows, err := engine.Update(&user, &User{Id:1})
|
rows, err := engine.Update(&user, &User{Id:1})
|
||||||
// rows, err := engine.Where("id = ?", 1).Update(&user)
|
// rows, err := engine.Where("id = ?", 1).Update(&user)
|
||||||
|
@ -96,53 +96,52 @@ rows, err := engine.Update(&user, &User{Id:1})
|
||||||
|
|
||||||
5.获取单个对象,可以用Get方法:
|
5.获取单个对象,可以用Get方法:
|
||||||
|
|
||||||
```Go
|
```
|
||||||
var user = User{Id:27}
|
var user = User{Id:27}
|
||||||
err := engine.Get(&user)
|
err := engine.Get(&user)
|
||||||
// or err := engine.Id(27).Get(&user)
|
// or err := engine.Id(27).Get(&user)
|
||||||
|
|
||||||
var user = User{Name:"xlw"}
|
var user = User{Name:"xlw"}
|
||||||
err := engine.Get(&user)
|
err := engine.Get(&user)
|
||||||
```
|
```
|
||||||
|
|
||||||
6.获取多个对象,可以用Find方法:
|
6.获取多个对象,可以用Find方法:
|
||||||
|
|
||||||
```Go
|
```
|
||||||
var everyone []Userinfo
|
var everyone []Userinfo
|
||||||
err := engine.Find(&everyone)
|
err := engine.Find(&everyone)
|
||||||
```
|
```
|
||||||
|
|
||||||
6.1 你也可以使用Where和Limit方法设定条件和查询数量
|
6.1 你也可以使用Where和Limit方法设定条件和查询数量
|
||||||
|
|
||||||
```Go
|
```
|
||||||
var allusers []Userinfo
|
var allusers []Userinfo
|
||||||
err := engine.Where("id > ?", "3").Limit(10,20).Find(&allusers) //Get id>3 limit 10 offset 20
|
err := engine.Where("id > ?", "3").Limit(10,20).Find(&allusers) //Get id>3 limit 10 offset 20
|
||||||
```
|
```
|
||||||
|
|
||||||
6.2 用一个结构体作为查询条件也是允许的
|
6.2 用一个结构体作为查询条件也是允许的
|
||||||
|
|
||||||
```Go
|
```
|
||||||
var tenusers []Userinfo
|
var tenusers []Userinfo
|
||||||
err := engine.Limit(10).Find(&tenusers, &Userinfo{Name:"xlw"}) //Get All Name="xlw" limit 10 offset 0
|
err := engine.Limit(10).Find(&tenusers, &Userinfo{Name:"xlw"}) //Get All Name="xlw" limit 10 offset 0
|
||||||
```
|
```
|
||||||
|
|
||||||
6.3 也可以调用In函数
|
6.3 也可以调用In函数
|
||||||
|
|
||||||
```Go
|
```
|
||||||
var tenusers []Userinfo
|
var tenusers []Userinfo
|
||||||
err := engine.In("id", 1, 3, 5).Find(&tenusers) //Get All id in (1, 3, 5)
|
err := engine.In("id", 1, 3, 5).Find(&tenusers) //Get All id in (1, 3, 5)
|
||||||
```
|
```
|
||||||
|
|
||||||
7.Delete方法
|
7.Delete方法
|
||||||
|
|
||||||
```Go
|
```
|
||||||
err := engine.Delete(&User{Id:1})
|
err := engine.Delete(&User{Id:1})
|
||||||
// or err := engine.Id(1).Delete(&User{})
|
// or err := engine.Id(1).Delete(&User{})
|
||||||
```
|
```
|
||||||
|
|
||||||
8.Count方法
|
8.Count方法
|
||||||
|
|
||||||
```Go
|
```
|
||||||
total, err := engine.Count(&User{Name:"xlw"})
|
total, err := engine.Count(&User{Name:"xlw"})
|
||||||
```
|
```
|
||||||
|
|
||||||
|
@ -151,14 +150,14 @@ total, err := engine.Count(&User{Name:"xlw"})
|
||||||
|
|
||||||
如果执行Select,请用Query()
|
如果执行Select,请用Query()
|
||||||
|
|
||||||
```Go
|
```
|
||||||
sql := "select * from userinfo"
|
sql := "select * from userinfo"
|
||||||
results, err := engine.Query(sql)
|
results, err := engine.Query(sql)
|
||||||
```
|
```
|
||||||
|
|
||||||
如果执行Insert, Update, Delete 等操作,请用Exec()
|
如果执行Insert, Update, Delete 等操作,请用Exec()
|
||||||
|
|
||||||
```Go
|
```
|
||||||
sql = "update userinfo set username=? where id=?"
|
sql = "update userinfo set username=? where id=?"
|
||||||
res, err := engine.Exec(sql, "xiaolun", 1)
|
res, err := engine.Exec(sql, "xiaolun", 1)
|
||||||
```
|
```
|
||||||
|
@ -166,7 +165,7 @@ res, err := engine.Exec(sql, "xiaolun", 1)
|
||||||
##高级用法
|
##高级用法
|
||||||
更高级的用法,我们必须要使用session对象,session对象在创建时会立刻创建一个数据库连接。
|
更高级的用法,我们必须要使用session对象,session对象在创建时会立刻创建一个数据库连接。
|
||||||
|
|
||||||
```Go
|
```
|
||||||
session, err := engine.MakeSession()
|
session, err := engine.MakeSession()
|
||||||
defer session.Close()
|
defer session.Close()
|
||||||
if err != nil {
|
if err != nil {
|
||||||
|
@ -176,7 +175,7 @@ if err != nil {
|
||||||
|
|
||||||
1.session对象同样也可以查询
|
1.session对象同样也可以查询
|
||||||
|
|
||||||
```Go
|
```
|
||||||
var user Userinfo
|
var user Userinfo
|
||||||
session.Where("id=?", 27).Get(&user)
|
session.Where("id=?", 27).Get(&user)
|
||||||
|
|
||||||
|
@ -189,7 +188,7 @@ session.Where("name = ? and age < ?", "john", 88).Get(&user4) // even more compl
|
||||||
|
|
||||||
2.获取多个对象
|
2.获取多个对象
|
||||||
|
|
||||||
```Go
|
```
|
||||||
var allusers []Userinfo
|
var allusers []Userinfo
|
||||||
err := session.Where("id > ?", "3").Limit(10,20).Find(&allusers) //Get id>3 limit 10 offset 20
|
err := session.Where("id > ?", "3").Limit(10,20).Find(&allusers) //Get id>3 limit 10 offset 20
|
||||||
|
|
||||||
|
@ -202,7 +201,7 @@ err := session.Find(&everyone)
|
||||||
|
|
||||||
3.事务处理
|
3.事务处理
|
||||||
|
|
||||||
```Go
|
```
|
||||||
// add Begin() before any action
|
// add Begin() before any action
|
||||||
session.Begin()
|
session.Begin()
|
||||||
user1 := Userinfo{Username: "xiaoxiao", Departname: "dev", Alias: "lunny", Created: time.Now()}
|
user1 := Userinfo{Username: "xiaoxiao", Departname: "dev", Alias: "lunny", Created: time.Now()}
|
||||||
|
@ -233,7 +232,7 @@ if err != nil {
|
||||||
|
|
||||||
4.混合型事务,这个事务中,既有直接的SQL语句,又有ORM方法:
|
4.混合型事务,这个事务中,既有直接的SQL语句,又有ORM方法:
|
||||||
|
|
||||||
```Go
|
```
|
||||||
// add Begin() before any action
|
// add Begin() before any action
|
||||||
session.Begin()
|
session.Begin()
|
||||||
user1 := Userinfo{Username: "xiaoxiao", Departname: "dev", Alias: "lunny", Created: time.Now()}
|
user1 := Userinfo{Username: "xiaoxiao", Departname: "dev", Alias: "lunny", Created: time.Now()}
|
||||||
|
@ -262,7 +261,7 @@ if err != nil {
|
||||||
}
|
}
|
||||||
```
|
```
|
||||||
|
|
||||||
##[mapping]映射规则
|
## 映射规则
|
||||||
1.Struct 和 Struct 的field名字应该为Pascal式命名,默认的映射规则将转换成用下划线连接的命名规则,这个映射是自动进行的,当然,你可以通过修改Engine的成员Mapper来改变它。
|
1.Struct 和 Struct 的field名字应该为Pascal式命名,默认的映射规则将转换成用下划线连接的命名规则,这个映射是自动进行的,当然,你可以通过修改Engine的成员Mapper来改变它。
|
||||||
|
|
||||||
例如:
|
例如:
|
||||||
|
@ -299,7 +298,7 @@ UserInfo中的成员UserName将会自动对应名为user_name的字段。
|
||||||
</table>
|
</table>
|
||||||
例如:
|
例如:
|
||||||
|
|
||||||
```Go
|
```
|
||||||
type Userinfo struct {
|
type Userinfo struct {
|
||||||
Uid int `xorm:"id pk not null autoincr"`
|
Uid int `xorm:"id pk not null autoincr"`
|
||||||
Username string
|
Username string
|
||||||
|
@ -317,7 +316,7 @@ type Userinfo struct {
|
||||||
|
|
||||||
答案:使用空格分开
|
答案:使用空格分开
|
||||||
|
|
||||||
```Go
|
```
|
||||||
type User struct {
|
type User struct {
|
||||||
Name string `json:"name" xorm:"name"`
|
Name string `json:"name" xorm:"name"`
|
||||||
}
|
}
|
||||||
|
|
Loading…
Reference in New Issue