v0.1.2 Insert function now supports both struct and slice pointer parameters, batch inserting and auto transaction
This commit is contained in:
Lunny Xiao
parent
8c81e70188
commit
a2ebf21969
47
README.md
47
README.md
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@ -16,6 +16,7 @@ Drivers for Go's sql package which currently support database/sql includes:
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## Changelog
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* **v0.1.2** : Insert function now supports both struct and slice pointer parameters, batch inserting and auto transaction
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* **v0.1.1** : Add Id, In functions and improved README
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* **v0.1.0** : Inital release.
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@ -39,7 +40,7 @@ Drivers for Go's sql package which currently support database/sql includes:
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1.Create a database engine just like sql.Open, commonly you just need create once.
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```
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```Go
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import (
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_ "github.com/Go-SQL-Driver/MySQL"
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"github.com/lunny/xorm"
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@ -49,7 +50,7 @@ engine := xorm.Create("mysql", "root:123@/test?charset=utf8")
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or
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```
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```Go
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import (
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_ "github.com/mattn/go-sqlite3"
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"github.com/lunny/xorm"
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@ -59,13 +60,13 @@ engine = xorm.Create("sqlite3", "./test.db")
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1.1.If you want to show all generated SQL
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```
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```Go
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engine.ShowSQL = true
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```
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2.Define a struct
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```
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```Go
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type User struct {
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Id int
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Name string
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@ -77,7 +78,7 @@ type User struct {
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3.When you set up your program, you can use CreateTables to create database tables.
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```
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```Go
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err := engine.CreateTables(&User{})
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// or err := engine.Map(&User{}, &Article{})
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// err = engine.CreateAll()
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@ -85,13 +86,13 @@ err := engine.CreateTables(&User{})
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4.then, insert an struct to table
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```
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```Go
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id, err := engine.Insert(&User{Name:"lunny"})
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```
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or if you want to update records
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```
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```Go
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user := User{Name:"xlw"}
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rows, err := engine.Update(&user, &User{Id:1})
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// or rows, err := engine.Where("id = ?", 1).Update(&user)
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@ -100,7 +101,7 @@ rows, err := engine.Update(&user, &User{Id:1})
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5.Fetch a single object by user
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```
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```Go
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var user = User{Id:27}
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err := engine.Get(&user)
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// or err := engine.Id(27).Get(&user)
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@ -111,42 +112,42 @@ err := engine.Get(&user)
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6.Fetch multipe objects, use Find：
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```
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```Go
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var everyone []Userinfo
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err := engine.Find(&everyone)
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```
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6.1 also you can use Where, Limit
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```
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```Go
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var allusers []Userinfo
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err := engine.Where("id > ?", "3").Limit(10,20).Find(&allusers) //Get id>3 limit 10 offset 20
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```
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6.2 or you can use a struct query
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```
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```Go
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var tenusers []Userinfo
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err := engine.Limit(10).Find(&tenusers, &Userinfo{Name:"xlw"}) //Get All Name="xlw" limit 10 offset 0
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```
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6.3 or In function
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```
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```Go
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var tenusers []Userinfo
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err := engine.In("id", 1, 3, 5).Find(&tenusers) //Get All id in (1, 3, 5)
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```
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7.Delete
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```
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```Go
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err := engine.Delete(&User{Id:1})
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// or err := engine.Id(1).Delete(&User{})
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```
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8.Count
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```
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```Go
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total, err := engine.Count(&User{Name:"xlw"})
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```
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@ -155,14 +156,14 @@ Of course, SQL execution is also provided.
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1.if select then use Query
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```
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```Go
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sql := "select * from userinfo"
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results, err := engine.Query(sql)
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```
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2.if insert, update or delete then use Exec
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```
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```Go
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sql = "update userinfo set username=? where id=?"
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res, err := engine.Exec(sql, "xiaolun", 1)
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```
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@ -170,7 +171,7 @@ res, err := engine.Exec(sql, "xiaolun", 1)
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##Advanced Usage
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for deep usage, you should create a session, this func will create a database connection immediatelly
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```
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```Go
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session, err := engine.MakeSession()
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defer session.Close()
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if err != nil {
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@ -180,7 +181,7 @@ if err != nil {
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1.Fetch a single object by where
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```
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```Go
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var user Userinfo
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session.Where("id=?", 27).Get(&user)
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@ -193,7 +194,7 @@ session.Where("name = ? and age < ?", "john", 88).Get(&user4) // even more compl
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2.Fetch multiple objects
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```
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```Go
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var allusers []Userinfo
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err := session.Where("id > ?", "3").Limit(10,20).Find(&allusers) //Get id>3 limit 10 offset 20
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@ -206,7 +207,7 @@ err := session.Find(&everyone)
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3.Transaction
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```
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```Go
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// add Begin() before any action
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session.Begin()
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user1 := Userinfo{Username: "xiaoxiao", Departname: "dev", Alias: "lunny", Created: time.Now()}
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@ -237,7 +238,7 @@ if err != nil {
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4.Mixed Transaction
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```
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```Go
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// add Begin() before any action
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session.Begin()
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user1 := Userinfo{Username: "xiaoxiao", Departname: "dev", Alias: "lunny", Created: time.Now()}
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@ -304,7 +305,7 @@ Another is use field tag, field tag support the below keywords which split with
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For Example
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```
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```Go
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type Userinfo struct {
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Uid int `xorm:"id pk not null autoincr"`
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Username string
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@ -321,7 +322,7 @@ Please visit [GoWalker](http://gowalker.org/github.com/lunny/xorm)
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Use space.
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```
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```Go
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type User struct {
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Name string `json:"name" xorm:"name"`
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}
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47
README_CN.md
47
README_CN.md
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@ -14,6 +14,7 @@ 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。
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## 更新日志
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* **v0.1.2** : Insert函数支持混合struct和slice指针传入，并根据数据库类型自动批量插入，同时自动添加事务
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* **v0.1.1** : 添加 Id, In 函数，改善 README 文档
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* **v0.1.0** : 初始化工程
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@ -36,7 +37,7 @@ 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。
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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)
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```
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```Go
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import (
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_ "github.com/Go-SQL-Driver/MySQL"
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"github.com/lunny/xorm"
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@ -46,7 +47,7 @@ engine := xorm.Create("mysql", "root:123@/test?charset=utf8")
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or
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```
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```Go
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import (
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_ "github.com/mattn/go-sqlite3"
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"github.com/lunny/xorm"
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@ -56,13 +57,13 @@ engine = xorm.Create("sqlite3", "./test.db")
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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
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```
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```Go
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engine.ShowSQL = true
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```
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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：
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```
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```Go
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type User struct {
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Id int
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Name string
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@ -74,19 +75,19 @@ type User struct {
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3.在程序初始化时，可能会需要创建表
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```
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```Go
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err := engine.CreateTables(&User{})
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```
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4.然后，可以将一个结构体作为一条记录插入到表中。
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```
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```Go
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id, err := engine.Insert(&User{Name:"lunny"})
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```
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或者执行更新操作：
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```
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```Go
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user := User{Name:"xlw"}
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rows, err := engine.Update(&user, &User{Id:1})
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// rows, err := engine.Where("id = ?", 1).Update(&user)
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@ -95,7 +96,7 @@ rows, err := engine.Update(&user, &User{Id:1})
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5.获取单个对象，可以用Get方法：
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```
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```Go
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var user = User{Id:27}
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err := engine.Get(&user)
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// or err := engine.Id(27).Get(&user)
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@ -105,42 +106,42 @@ err := engine.Get(&user)
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6.获取多个对象，可以用Find方法：
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```
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```Go
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var everyone []Userinfo
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err := engine.Find(&everyone)
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```
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6.1 你也可以使用Where和Limit方法设定条件和查询数量
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```
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```Go
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var allusers []Userinfo
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err := engine.Where("id > ?", "3").Limit(10,20).Find(&allusers) //Get id>3 limit 10 offset 20
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```
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6.2 用一个结构体作为查询条件也是允许的
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```
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```Go
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var tenusers []Userinfo
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err := engine.Limit(10).Find(&tenusers, &Userinfo{Name:"xlw"}) //Get All Name="xlw" limit 10 offset 0
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```
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6.3 也可以调用In函数
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```
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```Go
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var tenusers []Userinfo
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err := engine.In("id", 1, 3, 5).Find(&tenusers) //Get All id in (1, 3, 5)
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```
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7.Delete方法
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```
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```Go
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err := engine.Delete(&User{Id:1})
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// or err := engine.Id(1).Delete(&User{})
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```
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8.Count方法
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```
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```Go
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total, err := engine.Count(&User{Name:"xlw"})
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```
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@ -149,14 +150,14 @@ total, err := engine.Count(&User{Name:"xlw"})
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如果执行Select，请用Query()
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```
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```Go
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sql := "select * from userinfo"
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results, err := engine.Query(sql)
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```
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如果执行Insert， Update， Delete 等操作，请用Exec()
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```
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```Go
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sql = "update userinfo set username=? where id=?"
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res, err := engine.Exec(sql, "xiaolun", 1)
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```
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@ -165,7 +166,7 @@ res, err := engine.Exec(sql, "xiaolun", 1)
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<a name="mapping" id="mapping"></a>
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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。
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```
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```Go
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session, err := engine.MakeSession()
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defer session.Close()
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if err != nil {
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@ -175,7 +176,7 @@ if err != nil {
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1.session对象同样也可以查询
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```
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```Go
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var user Userinfo
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session.Where("id=?", 27).Get(&user)
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@ -188,7 +189,7 @@ session.Where("name = ? and age < ?", "john", 88).Get(&user4) // even more compl
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2.获取多个对象
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```
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```Go
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var allusers []Userinfo
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err := session.Where("id > ?", "3").Limit(10,20).Find(&allusers) //Get id>3 limit 10 offset 20
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@ -201,7 +202,7 @@ err := session.Find(&everyone)
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3.事务处理
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```
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```Go
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// add Begin() before any action
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session.Begin()
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user1 := Userinfo{Username: "xiaoxiao", Departname: "dev", Alias: "lunny", Created: time.Now()}
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@ -232,7 +233,7 @@ if err != nil {
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4.混合型事务，这个事务中，既有直接的SQL语句，又有ORM方法：
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```
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```Go
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// add Begin() before any action
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session.Begin()
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user1 := Userinfo{Username: "xiaoxiao", Departname: "dev", Alias: "lunny", Created: time.Now()}
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@ -298,7 +299,7 @@ UserInfo中的成员UserName将会自动对应名为user_name的字段。
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</table>
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例如：
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```
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```Go
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type Userinfo struct {
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Uid int `xorm:"id pk not null autoincr"`
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Username string
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@ -316,7 +317,7 @@ type Userinfo struct {
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答案：使用空格分开
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```
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```Go
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type User struct {
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Name string `json:"name" xorm:"name"`
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}
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@ -23,6 +23,7 @@ type Engine struct {
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Tables map[reflect.Type]Table
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AutoIncrement string
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ShowSQL bool
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InsertMany bool
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QuoteIdentifier string
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Statement Statement
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}
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113
session.go
113
session.go
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@ -16,11 +16,13 @@ type Session struct {
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Tx *sql.Tx
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Statement Statement
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IsAutoCommit bool
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IsCommitedOrRollbacked bool
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}
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func (session *Session) Init() {
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session.Statement = Statement{}
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session.IsAutoCommit = true
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session.IsCommitedOrRollbacked = false
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}
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func (session *Session) Close() {
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@ -69,27 +71,39 @@ func (session *Session) Having(conditions string) *Session {
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}
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func (session *Session) Begin() error {
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if session.IsAutoCommit {
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session.IsAutoCommit = false
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session.IsCommitedOrRollbacked = false
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tx, err := session.Db.Begin()
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session.Tx = tx
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if session.Engine.ShowSQL {
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fmt.Println("BEGIN TRANSACTION")
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}
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return err
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}
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return nil
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}
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func (session *Session) Rollback() error {
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if !session.IsAutoCommit && !session.IsCommitedOrRollbacked {
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if session.Engine.ShowSQL {
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fmt.Println("ROLL BACK")
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}
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session.IsCommitedOrRollbacked = true
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return session.Tx.Rollback()
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}
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return nil
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}
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func (session *Session) Commit() error {
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if !session.IsAutoCommit && !session.IsCommitedOrRollbacked {
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if session.Engine.ShowSQL {
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fmt.Println("COMMIT")
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}
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session.IsCommitedOrRollbacked = true
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return session.Tx.Commit()
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}
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return nil
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}
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func (session *Session) scanMapIntoStruct(obj interface{}, objMap map[string][]byte) error {
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@ -359,13 +373,108 @@ func (session *Session) Query(sql string, paramStr ...interface{}) (resultsSlice
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func (session *Session) Insert(beans ...interface{}) (int64, error) {
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var lastId int64 = -1
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var err error = nil
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isInTransaction := !session.IsAutoCommit
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if !isInTransaction {
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session.Begin()
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}
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for _, bean := range beans {
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lastId, err := session.InsertOne(bean)
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sliceValue := reflect.Indirect(reflect.ValueOf(bean))
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if sliceValue.Kind() == reflect.Slice {
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if session.Engine.InsertMany {
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lastId, err = session.InsertMulti(bean)
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if err != nil {
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if !isInTransaction {
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session.Rollback()
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}
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return lastId, err
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}
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} else {
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size := sliceValue.Len()
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for i := 0; i < size; i++ {
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lastId, err = session.InsertOne(sliceValue.Index(i).Interface())
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if err != nil {
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if !isInTransaction {
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session.Rollback()
|
||||
}
|
||||
return lastId, err
|
||||
}
|
||||
}
|
||||
return lastId, nil
|
||||
}
|
||||
} else {
|
||||
lastId, err = session.InsertOne(bean)
|
||||
if err != nil {
|
||||
if !isInTransaction {
|
||||
session.Rollback()
|
||||
}
|
||||
return lastId, err
|
||||
}
|
||||
}
|
||||
}
|
||||
if !isInTransaction {
|
||||
err = session.Commit()
|
||||
}
|
||||
return lastId, err
|
||||
}
|
||||
|
||||
func (session *Session) InsertMulti(rowsSlicePtr interface{}) (int64, error) {
|
||||
sliceValue := reflect.Indirect(reflect.ValueOf(rowsSlicePtr))
|
||||
if sliceValue.Kind() != reflect.Slice {
|
||||
return -1, errors.New("needs a pointer to a slice")
|
||||
}
|
||||
|
||||
bean := sliceValue.Index(0).Interface()
|
||||
sliceElementType := Type(bean)
|
||||
|
||||
table := session.Engine.Tables[sliceElementType]
|
||||
session.Statement.Table = &table
|
||||
|
||||
size := sliceValue.Len()
|
||||
|
||||
colNames := make([]string, 0)
|
||||
colMultiPlaces := make([]string, 0)
|
||||
var args = make([]interface{}, 0)
|
||||
|
||||
for i := 0; i < size; i++ {
|
||||
elemValue := sliceValue.Index(i).Interface()
|
||||
colPlaces := make([]string, 0)
|
||||
|
||||
for _, col := range table.Columns {
|
||||
fieldValue := reflect.Indirect(reflect.ValueOf(elemValue)).FieldByName(col.FieldName)
|
||||
val := fieldValue.Interface()
|
||||
if col.IsAutoIncrement && fieldValue.Int() == 0 {
|
||||
continue
|
||||
}
|
||||
args = append(args, val)
|
||||
if i == 0 {
|
||||
colNames = append(colNames, col.Name)
|
||||
}
|
||||
colPlaces = append(colPlaces, "?")
|
||||
}
|
||||
colMultiPlaces = append(colMultiPlaces, strings.Join(colPlaces, ", "))
|
||||
}
|
||||
|
||||
statement := fmt.Sprintf("INSERT INTO %v%v%v (%v) VALUES (%v)",
|
||||
session.Engine.QuoteIdentifier,
|
||||
table.Name,
|
||||
session.Engine.QuoteIdentifier,
|
||||
strings.Join(colNames, ", "),
|
||||
strings.Join(colMultiPlaces, "),("))
|
||||
|
||||
res, err := session.Exec(statement, args...)
|
||||
if err != nil {
|
||||
return -1, err
|
||||
}
|
||||
|
||||
id, err := res.LastInsertId()
|
||||
|
||||
if err != nil {
|
||||
return -1, err
|
||||
}
|
||||
|
||||
return id, nil
|
||||
}
|
||||
|
||||
func (session *Session) InsertOne(bean interface{}) (int64, error) {
|
||||
|
|
|
|||
1
xorm.go
1
xorm.go
|
|
@ -10,6 +10,7 @@ func Create(driverName string, dataSourceName string) Engine {
|
|||
|
||||
engine.Tables = make(map[reflect.Type]Table)
|
||||
engine.Statement.Engine = &engine
|
||||
engine.InsertMany = true
|
||||
if driverName == SQLITE {
|
||||
engine.AutoIncrement = "AUTOINCREMENT"
|
||||
} else {
|
||||
|
|
|
|||
36
xorm_test.go
36
xorm_test.go
|
|
@ -106,24 +106,33 @@ func insertAutoIncr(t *testing.T) {
|
|||
}
|
||||
|
||||
func insertMulti(t *testing.T) {
|
||||
user1 := Userinfo{Username: "xlw", Departname: "dev", Alias: "lunny2", Created: time.Now()}
|
||||
user2 := Userinfo{Username: "xlw2", Departname: "dev", Alias: "lunny3", Created: time.Now()}
|
||||
_, err := engine.Insert(&user1, &user2)
|
||||
users := []*Userinfo{
|
||||
{Username: "xlw", Departname: "dev", Alias: "lunny2", Created: time.Now()},
|
||||
{Username: "xlw2", Departname: "dev", Alias: "lunny3", Created: time.Now()},
|
||||
}
|
||||
_, err := engine.Insert(&users)
|
||||
if err != nil {
|
||||
t.Error(err)
|
||||
}
|
||||
|
||||
engine.InsertMany = false
|
||||
|
||||
users = []*Userinfo{
|
||||
{Username: "xlw9", Departname: "dev", Alias: "lunny9", Created: time.Now()},
|
||||
{Username: "xlw10", Departname: "dev", Alias: "lunny10", Created: time.Now()},
|
||||
}
|
||||
_, err = engine.Insert(&users)
|
||||
if err != nil {
|
||||
t.Error(err)
|
||||
}
|
||||
|
||||
engine.InsertMany = true
|
||||
}
|
||||
|
||||
func insertTwoTable(t *testing.T) {
|
||||
userinfo := Userinfo{Username: "xlw3", Departname: "dev", Alias: "lunny4", Created: time.Now()}
|
||||
uid, err := engine.Insert(&userinfo)
|
||||
if err != nil {
|
||||
t.Error(err)
|
||||
return
|
||||
}
|
||||
|
||||
userdetail := Userdetail{Uid: int(uid), Intro: "I'm a very beautiful women.", Profile: "sfsaf"}
|
||||
_, err = engine.Insert(&userdetail)
|
||||
userdetail := Userdetail{Uid: 1, Intro: "I'm a very beautiful women.", Profile: "sfsaf"}
|
||||
_, err := engine.Insert(&userinfo, &userdetail)
|
||||
if err != nil {
|
||||
t.Error(err)
|
||||
}
|
||||
|
|
@ -199,7 +208,8 @@ func in(t *testing.T) {
|
|||
}
|
||||
fmt.Println(users)
|
||||
|
||||
err = engine.Where("id > ?", 2).In("id", 1, 2, 3).Find(&users)
|
||||
ids := []interface{}{1, 2, 3}
|
||||
err = engine.Where("id > ?", 2).In("id", ids...).Find(&users)
|
||||
if err != nil {
|
||||
t.Error(err)
|
||||
return
|
||||
|
|
@ -352,6 +362,7 @@ func TestMysql(t *testing.T) {
|
|||
exec(t)
|
||||
insertAutoIncr(t)
|
||||
insertMulti(t)
|
||||
insertTwoTable(t)
|
||||
update(t)
|
||||
delete(t)
|
||||
get(t)
|
||||
|
|
@ -378,6 +389,7 @@ func TestSqlite(t *testing.T) {
|
|||
exec(t)
|
||||
insertAutoIncr(t)
|
||||
insertMulti(t)
|
||||
insertTwoTable(t)
|
||||
update(t)
|
||||
delete(t)
|
||||
get(t)
|
||||
|
|
|
|||
Loading…
Reference in New Issue