|
7 years ago | |
---|---|---|
.. | ||
CONTRIBUTING.md | 8 years ago | |
LICENSE | 8 years ago | |
README.md | 7 years ago | |
README_CN.md | 7 years ago | |
circle.yml | 8 years ago | |
convert.go | 7 years ago | |
dialect_mssql.go | 7 years ago | |
dialect_mysql.go | 7 years ago | |
dialect_oracle.go | 7 years ago | |
dialect_postgres.go | 7 years ago | |
dialect_sqlite3.go | 7 years ago | |
doc.go | 7 years ago | |
engine.go | 7 years ago | |
error.go | 8 years ago | |
gen_reserved.sh | 8 years ago | |
helpers.go | 7 years ago | |
logger.go | 8 years ago | |
lru_cacher.go | 8 years ago | |
memory_store.go | 8 years ago | |
pg_reserved.txt | 8 years ago | |
processors.go | 8 years ago | |
rows.go | 7 years ago | |
session.go | 7 years ago | |
session_cols.go | 7 years ago | |
session_cond.go | 7 years ago | |
session_convert.go | 7 years ago | |
session_delete.go | 8 years ago | |
session_find.go | 7 years ago | |
session_get.go | 7 years ago | |
session_insert.go | 7 years ago | |
session_iterate.go | 8 years ago | |
session_raw.go | 7 years ago | |
session_schema.go | 7 years ago | |
session_sum.go | 7 years ago | |
session_tx.go | 8 years ago | |
session_update.go | 7 years ago | |
statement.go | 7 years ago | |
syslogger.go | 8 years ago | |
tag.go | 7 years ago | |
types.go | 8 years ago | |
xorm.go | 7 years ago |
README.md
Xorm is a simple and powerful ORM for Go.
Notice
The last master version is not backwards compatible. You should use engine.ShowSQL()
and engine.Logger().SetLevel()
instead of engine.ShowSQL =
, engine.ShowInfo =
and so on.
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, See Xorm Tool README
-
Simple cascade loading support
-
Optimistic Locking support
-
SQL Builder support via github.com/go-xorm/builder
Drivers Support
Drivers for Go's sql package which currently support database/sql includes:
-
MyMysql: github.com/ziutek/mymysql/godrv
-
Postgres: github.com/lib/pq
-
Tidb: github.com/pingcap/tidb
-
SQLite: github.com/mattn/go-sqlite3
-
Oracle: github.com/mattn/go-oci8 (experiment)
Changelog
-
v0.6.2
- refactor tag parse methods
- add Scan features to Get
- add QueryString method
-
v0.6.0
- remove support for ql
- add query condition builder support via github.com/go-xorm/builder, so
Where
,And
,Or
methods can usebuilder.Cond
as parameter - add Sum, SumInt, SumInt64 and NotIn methods
- some bugs fixed
-
v0.5.0
- logging interface changed
- some bugs fixed
-
v0.4.5
- many bugs fixed
- extends support unlimited deepth
- Delete Limit support
-
v0.4.4
- ql database expriment support
- tidb database expriment support
- sql.NullString and etc. field support
- select ForUpdate support
- many bugs fixed
Installation
go get github.com/go-xorm/xorm
Documents
Quick Start
- Create Engine
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))
Query
runs a SQL string, the returned results is[]map[string][]byte
,QueryString
returns[]map[string]string
.
results, err := engine.Query("select * from user")
results, err := engine.QueryString("select * from user")
Execute
runs a SQL string, it returnsaffetcted
anderror
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 (),(),()
- 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.Where("id = ?", id).Cols("name").Get(&name)
// SELECT name FROM user WHERE id = ?
var id int64
has, err := engine.Where("name = ?", name).Cols("id").Get(&id)
// SELECT id FROM user WHERE name = ?
var valuesMap = make(map[string]string)
has, err := engine.Where("id = ?", id).Get(&valuesMap)
// SELECT * FROM user WHERE id = ?
var valuesSlice = make([]interface{}, len(cols))
has, err := engine.Where("id = ?", id).Cols(cols...).Get(&valuesSlice)
// SELECT col1, col2, col3 FROM user WHERE id = ?
- 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 0 offset 10
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 0 offset 10
- 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
rows, err := engine.Rows(&User{Name:name})
// SELECT * FROM user
defer rows.Close()
bean := new(Struct)
for rows.Next() {
err = rows.Scan(bean)
}
- 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 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)
- Count records
counts, err := engine.Count(&user)
// SELECT count(*) AS total 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 (?, ?, ?)
Cases
Discuss
Please visit Xorm on Google Groups
Contributing
If you want to pull request, please see CONTRIBUTING
LICENSE
BSD License http://creativecommons.org/licenses/BSD/