gorose, 最像 laravel's eloquent 的go数据库操作orm, 风骚的链式调用, 让你深深陷入不能自拔

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gorose(go orm), 一个小巧强悍的go语言数据库操作orm, 灵感来源于laravel的数据库操作orm, 也就是eloquent, 做php的, python的, ruby的, 都会喜欢上这个orm的操作方式, 主要是链式操作比较风骚 - [English Document](https://github.com/gohouse/gorose) - [中文文档](https://github.com/gohouse/gorose/blob/master/README-ZH_CN.md) ## 安装 - 安装 gorose ```go go get github.com/gohouse/gorose ``` - 安装gorose中使用到的函数工具包 ```go go get github.com/gohouse/utils ``` ## 配置和示例 - 多个数据库连接配置 ```go import "github.com/gohouse/gorose" var dbConfig = map[string]map[string]string { "mysql": { "host": "localhost", "username": "root", "password": "", "port": "3306", "database": "test", "charset": "utf8", "protocol": "tcp", }, "mysql_dev": { "host": "localhost", "username": "root", "password": "", "port": "3306", "database": "gorose", "charset": "utf8", "protocol": "tcp", }, } gorose.Open(dbConfig, "mysql") var db gorose.Database func main() { res := db.Table("users").First() fmt.Println(res) } ``` - 简单的但数据库配置 ```go gorose.Open(map[string]string { "host": "localhost", "username": "root", "password": "", "port": "3306", "database": "test", "charset": "utf8", "protocol": "tcp", }) ``` ## 用法示例 ### 查询 #### 原生sql语句查询 ```go db.Query("select * from user where id = 1") ``` #### 链式调用查询 ```go db.Table("user"). Field("id, name"). // field Where("id",">",1). // simple where Where(map[string]interface{}{"name":"fizzday", "age":18}). // where object Where([]map[string]interface{}{{"website", "like", "fizz"}, {"job", "it"}}). // multi where Where("head = 3 or rate is not null"). // where string OrWhere("cash", "1000000"). // or where ... OrWhere("score", "between", []string{50, 80}). // between OrWhere("role", "not in", []string{"admin", "read"}). // in Group("job"). // group Order("age asc"). // order Limit(10). // limit Offset(1). // offset Get() // fetch multi rows ``` 得到sql结果: ```go select id,name from user where (id>1) and (name='fizzday' and age='18') and ((website like '%fizz%') and (job='it')) and (head =3 or rate is not null) or (cash = '100000') or (score between '50' and '100') or (role not in ('admin', 'read')) group by job order by age asc limit 10 offset 1 ``` #### 更多链式查询示例 - 获取user表对象 ```go User := db.Table("user") ``` - 查询一条 ```go User.First() // 或者 db.Fisrt() ``` parse sql result: `select * from user limit 1` - count统计 ```go User.Count("*") // 或(下同) db.Count("*") ``` 最终执行的sql为: `select count(*) as count from user` - max ```go User.Max("age") ``` 最终执行的sql为: `select max(age) as max from user` - min ```go User.Min("age") ``` 最终执行的sql为: `select min(age) as min from user` - avg ```go User.Avg("age") ``` 最终执行的sql为: `select avg(age) as avg from user` - distinct ```go User.Fields("id, name").Distinct() ``` 最终执行的sql为: `select distinct id,name from user` #### 嵌套where的查询 (where nested) ```go db.Table("user").Where("id", ">", 1).Where(func() { db.Where("name", "fizz").OrWhere(func() { db.Where("name", "fizz2").Where(func() { db.Where("name", "fizz3").OrWhere("website", "fizzday") }) }) }).Where("job", "it").First() ``` 最终执行的sql为: ```go SELECT * FROM user WHERE id > '1' and ( name = 'fizz' or ( name = 'fizz2' and ( name = 'fizz3' or website like '%fizzday%') ) ) and job = 'it' LIMIT 1 ``` #### 事务 - 标准用法 ```go db.Begin() res := db.Table("user").Where("id", 1).Data(map[string]interface{}{"age":18}).Update() if (res == 0) { db.Rollback() } res2 := db.Table("user").Data(map[string]interface{}{"age":18}).Insert() if (res2 == 0) { db.Rollback() } db.Commit() ``` - 简单用法, 用闭包实现, 自动开始事务, 回滚或提交事务 ```go db.Transaction(func() { db.Execute("update area set job='sadf' where id=14") db.Table("area").Data(map[string]interface{}{"names": "fizz3", "age": 3}).Insert() db.Table("area").Data(map[string]interface{}{"names": "fizz3", "age": 3}).Where("id",10).Update() }) ``` ### 增删改操作 #### 原生sql字符串 ```go db.Execute("update user set job='it2' where id=3") ``` #### 链式调用 ```go db.Table("user"). Data(map[string]interface{}{"age":17, "job":"it3"}). Where("id", 1). OrWhere("age",">",30). Update() ``` 最终执行的sql为: `update user set age=17, job='ite3' where (id=1) or (age>30)` #### 更多增删改的用法 - insert ```go User.Data(map[string]interface{}{"age":17, "job":"it3"}).Insert() User.Data([]map[string]interface{}{{"age":17, "job":"it3"},{"age":17, "job":"it4"}).Insert() ``` 最终执行的sql为: ```go insert into user (age, job) values (17, 'it3') insert into user (age, job) values (17, 'it3') (17, 'it4') ``` - delete ```go User.Where("id", 5).Delete() ``` 最终执行的sql为: `delete from user where id=5` ## 切换数据库连接 ```go // 连接最开始配置的第二个链接(mysql_dev是key) db.Connect("mysql_dev").Table().First() // 或者直接输入连接配置 db.Connect(map[string]string { "host": "localhost", "username": "root", "password": "", "port": "3306", "database": "test", "charset": "utf8", "protocol": "tcp", }).Table().First() ``` ------------ #### [点击查看最新更新动态](https://github.com/gohouse/gorose)

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