Simple and Powerful ORM for Go, support mysql,postgres,tidb,sqlite3,mssql,oracle https://xorm.io
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Lunny Xiao 5d90695511 update discuss forum new address (#1638) 8 години тому
caches Improve tests (#1572) 3 тижднів тому
contexts Move statement as a sub package (#1564) 4 тижднів тому
convert Move tag parser related codes as a standalone sub package (#1547) 1 місяць тому
core Support session id (#1632) 1 день тому
dialects Move all integrations tests to a standalone sub package (#1635) 1 день тому
integrations Move all integrations tests to a standalone sub package (#1635) 1 день тому
internal Improve insert map generating SQL (#1634) 1 день тому
log Support session id (#1632) 1 день тому
migrate Merge core package back into the main repository and split into serval sub packages. (#1543) 1 місяць тому
names Fix table name (#1590) 2 тижднів тому
schemas Fix quote with blank (#1626) 2 дні тому
tags Use a new ContextLogger interface to implement logger (#1557) 4 тижднів тому
.changelog.yml Add changelog for v1.0.0 (#1614) 6 дні тому
.drone.yml Move all integrations tests to a standalone sub package (#1635) 1 день тому
.gitignore Move all integrations tests to a standalone sub package (#1635) 1 день тому
.revive.toml Add makefile (#1531) 1 місяць тому
CHANGELOG.md Add changelog for v1.0.1 (#1629) 2 дні тому
CONTRIBUTING.md Add changelog file and tool configuration (#1546) 1 місяць тому
LICENSE copyright: added owner 4 роки тому
Makefile Move all integrations tests to a standalone sub package (#1635) 1 день тому
README.md update discuss forum new address (#1638) 8 години тому
README_CN.md Add changelog for v1.0.0 (#1614) 6 дні тому
convert.go Move all integrations tests to a standalone sub package (#1635) 1 день тому
doc.go Move all integrations tests to a standalone sub package (#1635) 1 день тому
engine.go Move all integrations tests to a standalone sub package (#1635) 1 день тому
engine_group.go Fix lint errors (#1631) 2 дні тому
engine_group_policy.go Fix lint errors (#1631) 2 дні тому
error.go Improve codes (#1630) 1 день тому
go.mod Add changelog for v1.0.0 (#1614) 6 дні тому
go.sum Oracle : Local Naming Method (#1515) 5 дні тому
interface.go Fix dump/import bug (#1603) 1 тиждень тому
processors.go Move processor function into one file (#1637) 8 години тому
rows.go Only replace quotes when necessary (#1584) 2 тижднів тому
session.go Move processor function into one file (#1637) 8 години тому
session_cols.go Move statement as a sub package (#1564) 4 тижднів тому
session_cond.go Move statement as a sub package (#1564) 4 тижднів тому
session_convert.go Move value2interface from session to statement package (#1587) 2 тижднів тому
session_delete.go Move processor function into one file (#1637) 8 години тому
session_exist.go Move statement as a sub package (#1564) 4 тижднів тому
session_find.go Fix duplicated deleted condition on FindAndCount (#1619) 4 дні тому
session_get.go Improve codes (#1630) 1 день тому
session_insert.go Move processor function into one file (#1637) 8 години тому
session_iterate.go Move statement as a sub package (#1564) 4 тижднів тому
session_query.go Move statement as a sub package (#1564) 4 тижднів тому
session_raw.go Only replace quotes when necessary (#1584) 2 тижднів тому
session_schema.go Don't keep db on dialects (#1623) 4 дні тому
session_stats.go Move statement as a sub package (#1564) 4 тижднів тому
session_tx.go Move some codes to statement sub package (#1574) 3 тижднів тому
session_update.go Fix pk bug (#1602) 2 тижднів тому

README.md

xorm

中文

Xorm is a simple and powerful ORM for Go.

Build Status Join the chat at https://img.shields.io/discord/323460943201959939.svg

Notice

v1.0.0 has some break changes from v0.8.2.

  • Removed some non gonic function name Id, Sql, please use ID, SQL instead.
  • Removed the dependent from xorm.io/core and moved the codes to xorm.io/xorm/core, xorm.io/xorm/names, xorm.io/xorm/schemas and others.
  • Renamed some interface names. i.e. core.IMapper -> names.Mapper, core.ILogger -> log.Logger.

Features

  • Struct <-> Table Mapping Support
  • Chainable APIs
  • Transaction Support
  • Both ORM and raw SQL operation Support
  • Sync database schema Support
  • Query Cache speed up
  • Database Reverse support via xorm.io/reverse
  • Simple cascade loading support
  • Optimistic Locking support
  • SQL Builder support via xorm.io/builder
  • Automatical Read/Write seperatelly
  • Postgres schema support
  • Context Cache support
  • Support log/SQLLog context

Drivers Support

Drivers for Go’s sql package which currently support database/sql includes:

Installation

go get xorm.io/xorm

Documents

Quick Start

  • Create Engine

Firstly, we should new an engine for a database.

engine, err := xorm.NewEngine(driverName, dataSourceName)
  • Define a struct and Sync2 table struct to database
type User struct {
    Id int64
    Name string
    Salt string
    Age int
    Passwd string `xorm:"varchar(200)"`
    Created time.Time `xorm:"created"`
    Updated time.Time `xorm:"updated"`
}

err := engine.Sync2(new(User))
  • Create Engine Group
dataSourceNameSlice := []string{masterDataSourceName, slave1DataSourceName, slave2DataSourceName}
engineGroup, err := xorm.NewEngineGroup(driverName, dataSourceNameSlice)
masterEngine, err := xorm.NewEngine(driverName, masterDataSourceName)
slave1Engine, err := xorm.NewEngine(driverName, slave1DataSourceName)
slave2Engine, err := xorm.NewEngine(driverName, slave2DataSourceName)
engineGroup, err := xorm.NewEngineGroup(masterEngine, []*Engine{slave1Engine, slave2Engine})

Then all place where engine you can just use engineGroup.

  • Query runs a SQL string, the returned results is []map[string][]byte, QueryString returns []map[string]string, QueryInterface returns []map[string]interface{}.
results, err := engine.Query("select * from user")
results, err := engine.Where("a = 1").Query()

results, err := engine.QueryString("select * from user")
results, err := engine.Where("a = 1").QueryString()

results, err := engine.QueryInterface("select * from user")
results, err := engine.Where("a = 1").QueryInterface()
  • Exec runs a SQL string, it returns affected and error
affected, err := engine.Exec("update user set age = ? where name = ?", age, name)
  • Insert one or multiple records to database
affected, err := engine.Insert(&user)
// INSERT INTO struct () values ()

affected, err := engine.Insert(&user1, &user2)
// INSERT INTO struct1 () values ()
// INSERT INTO struct2 () values ()

affected, err := engine.Insert(&users)
// INSERT INTO struct () values (),(),()

affected, err := engine.Insert(&user1, &users)
// INSERT INTO struct1 () values ()
// INSERT INTO struct2 () values (),(),()
  • Get query one record from database
has, err := engine.Get(&user)
// SELECT * FROM user LIMIT 1

has, err := engine.Where("name = ?", name).Desc("id").Get(&user)
// SELECT * FROM user WHERE name = ? ORDER BY id DESC LIMIT 1

var name string
has, err := engine.Table(&user).Where("id = ?", id).Cols("name").Get(&name)
// SELECT name FROM user WHERE id = ?

var id int64
has, err := engine.Table(&user).Where("name = ?", name).Cols("id").Get(&id)
has, err := engine.SQL("select id from user").Get(&id)
// SELECT id FROM user WHERE name = ?

var valuesMap = make(map[string]string)
has, err := engine.Table(&user).Where("id = ?", id).Get(&valuesMap)
// SELECT * FROM user WHERE id = ?

var valuesSlice = make([]interface{}, len(cols))
has, err := engine.Table(&user).Where("id = ?", id).Cols(cols...).Get(&valuesSlice)
// SELECT col1, col2, col3 FROM user WHERE id = ?
  • Exist check if one record exist on table
has, err := testEngine.Exist(new(RecordExist))
// SELECT * FROM record_exist LIMIT 1

has, err = testEngine.Exist(&RecordExist{
		Name: "test1",
	})
// SELECT * FROM record_exist WHERE name = ? LIMIT 1

has, err = testEngine.Where("name = ?", "test1").Exist(&RecordExist{})
// SELECT * FROM record_exist WHERE name = ? LIMIT 1

has, err = testEngine.SQL("select * from record_exist where name = ?", "test1").Exist()
// select * from record_exist where name = ?

has, err = testEngine.Table("record_exist").Exist()
// SELECT * FROM record_exist LIMIT 1

has, err = testEngine.Table("record_exist").Where("name = ?", "test1").Exist()
// SELECT * FROM record_exist WHERE name = ? LIMIT 1
  • Find query multiple records from database, also you can use join and extends
var users []User
err := engine.Where("name = ?", name).And("age > 10").Limit(10, 0).Find(&users)
// SELECT * FROM user WHERE name = ? AND age > 10 limit 10 offset 0

type Detail struct {
    Id int64
    UserId int64 `xorm:"index"`
}

type UserDetail struct {
    User `xorm:"extends"`
    Detail `xorm:"extends"`
}

var users []UserDetail
err := engine.Table("user").Select("user.*, detail.*").
    Join("INNER", "detail", "detail.user_id = user.id").
    Where("user.name = ?", name).Limit(10, 0).
    Find(&users)
// SELECT user.*, detail.* FROM user INNER JOIN detail WHERE user.name = ? limit 10 offset 0
  • Iterate and Rows query multiple records and record by record handle, there are two methods Iterate and Rows
err := engine.Iterate(&User{Name:name}, func(idx int, bean interface{}) error {
    user := bean.(*User)
    return nil
})
// SELECT * FROM user

err := engine.BufferSize(100).Iterate(&User{Name:name}, func(idx int, bean interface{}) error {
    user := bean.(*User)
    return nil
})
// SELECT * FROM user Limit 0, 100
// SELECT * FROM user Limit 101, 100

rows, err := engine.Rows(&User{Name:name})
// SELECT * FROM user
defer rows.Close()
bean := new(Struct)
for rows.Next() {
    err = rows.Scan(bean)
}
  • Update update one or more records, default will update non-empty and non-zero fields except when you use Cols, AllCols and so on.
affected, err := engine.ID(1).Update(&user)
// UPDATE user SET ... Where id = ?

affected, err := engine.Update(&user, &User{Name:name})
// UPDATE user SET ... Where name = ?

var ids = []int64{1, 2, 3}
affected, err := engine.In("id", ids).Update(&user)
// UPDATE user SET ... Where id IN (?, ?, ?)

// force update indicated columns by Cols
affected, err := engine.ID(1).Cols("age").Update(&User{Name:name, Age: 12})
// UPDATE user SET age = ?, updated=? Where id = ?

// force NOT update indicated columns by Omit
affected, err := engine.ID(1).Omit("name").Update(&User{Name:name, Age: 12})
// UPDATE user SET age = ?, updated=? Where id = ?

affected, err := engine.ID(1).AllCols().Update(&user)
// UPDATE user SET name=?,age=?,salt=?,passwd=?,updated=? Where id = ?
  • Delete delete one or more records, Delete MUST have condition
affected, err := engine.Where(...).Delete(&user)
// DELETE FROM user Where ...

affected, err := engine.ID(2).Delete(&user)
// DELETE FROM user Where id = ?
  • Count count records
counts, err := engine.Count(&user)
// SELECT count(*) AS total FROM user
  • FindAndCount combines function Find with Count which is usually used in query by page
var users []User
counts, err := engine.FindAndCount(&users)
  • Sum sum functions
agesFloat64, err := engine.Sum(&user, "age")
// SELECT sum(age) AS total FROM user

agesInt64, err := engine.SumInt(&user, "age")
// SELECT sum(age) AS total FROM user

sumFloat64Slice, err := engine.Sums(&user, "age", "score")
// SELECT sum(age), sum(score) FROM user

sumInt64Slice, err := engine.SumsInt(&user, "age", "score")
// SELECT sum(age), sum(score) FROM user
  • Query conditions builder
err := engine.Where(builder.NotIn("a", 1, 2).And(builder.In("b", "c", "d", "e"))).Find(&users)
// SELECT id, name ... FROM user WHERE a NOT IN (?, ?) AND b IN (?, ?, ?)
  • Multiple operations in one go routine, no transation here but resue session memory
session := engine.NewSession()
defer session.Close()

user1 := Userinfo{Username: "xiaoxiao", Departname: "dev", Alias: "lunny", Created: time.Now()}
if _, err := session.Insert(&user1); err != nil {
    return err
}

user2 := Userinfo{Username: "yyy"}
if _, err := session.Where("id = ?", 2).Update(&user2); err != nil {
    return err
}

if _, err := session.Exec("delete from userinfo where username = ?", user2.Username); err != nil {
    return err
}

return nil
  • Transation should be on one go routine. There is transaction and resue session memory
session := engine.NewSession()
defer session.Close()

// add Begin() before any action
if err := session.Begin(); err != nil {
    // if returned then will rollback automatically
    return err
}

user1 := Userinfo{Username: "xiaoxiao", Departname: "dev", Alias: "lunny", Created: time.Now()}
if _, err := session.Insert(&user1); err != nil {
    return err
}

user2 := Userinfo{Username: "yyy"}
if _, err := session.Where("id = ?", 2).Update(&user2); err != nil {
    return err
}

if _, err := session.Exec("delete from userinfo where username = ?", user2.Username); err != nil {
    return err
}

// add Commit() after all actions
return session.Commit()
  • Or you can use Transaction to replace above codes.
res, err := engine.Transaction(func(session *xorm.Session) (interface{}, error) {
    user1 := Userinfo{Username: "xiaoxiao", Departname: "dev", Alias: "lunny", Created: time.Now()}
    if _, err := session.Insert(&user1); err != nil {
        return nil, err
    }

    user2 := Userinfo{Username: "yyy"}
    if _, err := session.Where("id = ?", 2).Update(&user2); err != nil {
        return nil, err
    }

    if _, err := session.Exec("delete from userinfo where username = ?", user2.Username); err != nil {
        return nil, err
    }
    return nil, nil
})
  • Context Cache, if enabled, current query result will be cached on session and be used by next same statement on the same session.
	sess := engine.NewSession()
	defer sess.Close()

	var context = xorm.NewMemoryContextCache()

	var c2 ContextGetStruct
	has, err := sess.ID(1).ContextCache(context).Get(&c2)
	assert.NoError(t, err)
	assert.True(t, has)
	assert.EqualValues(t, 1, c2.Id)
	assert.EqualValues(t, "1", c2.Name)
	sql, args := sess.LastSQL()
	assert.True(t, len(sql) > 0)
	assert.True(t, len(args) > 0)

	var c3 ContextGetStruct
	has, err = sess.ID(1).ContextCache(context).Get(&c3)
	assert.NoError(t, err)
	assert.True(t, has)
	assert.EqualValues(t, 1, c3.Id)
	assert.EqualValues(t, "1", c3.Name)
	sql, args = sess.LastSQL()
	assert.True(t, len(sql) == 0)
	assert.True(t, len(args) == 0)

Contributing

If you want to pull request, please see CONTRIBUTING. And you can also go to Xorm on discourse to discuss.

Credits

Contributors

This project exists thanks to all the people who contribute. [Contribute].

Backers

Thank you to all our backers! 🙏 [Become a backer]

Sponsors

Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [Become a sponsor]

Changelog

You can find all the changelog here

Cases

LICENSE

BSD License http://creativecommons.org/licenses/BSD/