Simple and Powerful ORM for Go, support mysql,postgres,tidb,sqlite3,mssql,oracle https://xorm.io
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getsu 677c0d7411 fix invalid date when update for oracle (#1694) před 14 hodinami
caches Improve tests (#1572) před 4 měsíci
contexts Add Hook (#1644) před 2 měsíci
convert Move tag parser related codes as a standalone sub package (#1547) před 4 měsíci
core Add Hook (#1644) před 2 měsíci
dialects Oracle uses double quotes for quoting table/column/etc. names (#1674) před 1 měsícem
integrations Fix find and count bug (#1651) před 2 týdny
internal Fix bug when ID used but no reference table given (#1709) před 2 týdny
log Add Hook (#1644) před 2 měsíci
migrate Merge core package back into the main repository and split into serval sub packages. (#1543) před 4 měsíci
names chore: improve titleCasedName performance (#1691) před 1 měsícem
schemas Fix find and count bug (#1651) před 2 týdny
tags Fix find with another struct (#1666) před 2 měsíci
.changelog.yml Add changelog for v1.0.0 (#1614) před 3 měsíci
.drone.yml Move all integrations tests to a standalone sub package (#1635) před 3 měsíci
.gitignore Move all integrations tests to a standalone sub package (#1635) před 3 měsíci
.revive.toml Add makefile (#1531) před 4 měsíci
CHANGELOG.md Add missing changelog for 1.0.2 (#1712) před 2 týdny
CONTRIBUTING.md Add changelog file and tool configuration (#1546) před 4 měsíci
LICENSE copyright: added owner před 4 roky
Makefile Move all integrations tests to a standalone sub package (#1635) před 3 měsíci
README.md Update README badges před 2 týdny
README_CN.md Update README badges před 2 týdny
convert.go Move all integrations tests to a standalone sub package (#1635) před 3 měsíci
doc.go Move all integrations tests to a standalone sub package (#1635) před 3 měsíci
engine.go return the result on transaction (#1725) před 1 týdnem
engine_group.go Add Hook (#1644) před 2 měsíci
engine_group_policy.go Fix lint errors (#1631) před 3 měsíci
error.go Improve codes (#1630) před 3 měsíci
go.mod Upgrade some dependencies (#1718) před 2 týdny
go.sum Upgrade some dependencies (#1718) před 2 týdny
interface.go Add Hook (#1644) před 2 měsíci
processors.go Move processor function into one file (#1637) před 3 měsíci
rows.go Only replace quotes when necessary (#1584) před 3 měsíci
session.go Add Hook (#1644) před 2 měsíci
session_cols.go Move statement as a sub package (#1564) před 4 měsíci
session_cond.go Move statement as a sub package (#1564) před 4 měsíci
session_convert.go Move value2interface from session to statement package (#1587) před 3 měsíci
session_delete.go Move processor function into one file (#1637) před 3 měsíci
session_exist.go Move statement as a sub package (#1564) před 4 měsíci
session_find.go Fix find and count bug (#1651) před 2 týdny
session_get.go Improve codes (#1630) před 3 měsíci
session_insert.go Move processor function into one file (#1637) před 3 měsíci
session_iterate.go Move statement as a sub package (#1564) před 4 měsíci
session_query.go Move statement as a sub package (#1564) před 4 měsíci
session_raw.go Only replace quotes when necessary (#1584) před 3 měsíci
session_schema.go Don't keep db on dialects (#1623) před 3 měsíci
session_stats.go Move statement as a sub package (#1564) před 4 měsíci
session_tx.go Move some codes to statement sub package (#1574) před 3 měsíci
session_update.go fix invalid date when update for oracle (#1694) před 14 hodinami

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/