# WORK IN PROGRESS
# Get Started
A golang ORM Framework like Laravel's Eloquent

Example

```golang
type User struct {
    Id        int64          `goelo:"column:id;primaryKey"`
    UserName  sql.NullString `goelo:"column:name"`
    Age       int            `goelo:"column:age"`
    Status    int            `goelo:"column:status"`
    Friends   []UserT        `goelo:"BelongsToMany:FriendsRelation"`
    Address   Address        `goelo:"HasOne:AddressRelation"`
    CreatedAt time.Time      `goelo:"column:created_at,timestatmp:create"`
    UpdatedAt sql.NullTime   `goelo:"column:updated_at,timestatmp:update"`
}

//Find/First/Get
var user User
DB.Table("users").Find(&user,1)
DB.Table("users").Where("name","john").First(&user)
DB.Table("users").Where("name","john").FirstOrCreate(&user)

//Column/Aggeregate
var age int
DB.Table("users").Where("id","=",20).Value(&age,"age")
DB.Table("users").Max(&age,"age")
var salary int
DB.Table("user").Where("age",">=",30).Avg(&salary,"salary")

//Find record to map
var m = make(map[string]interface{})
DB.Query().From("users").Find(&m,3)
var ms []map[string]interface{}
DB.Query().From("users").Get(&ms)

//Pagination
var users []User
DB.Table("users").Where("id", ">", 10).Where("id", "<", 28).Paginate(&users, 10, 1)

//Chunk/ChunkById
var total int
totalP := &total
DB.Table("users").OrderBy("id").Chunk(&[]User{}, 10, func(dest interface{}) error {
    us := dest.(*[]User)
    for _, user := range *us {
        assert.Equal(t, user.UserName, sql.NullString{
            String: fmt.Sprintf("user-%d", user.Age),
            Valid:  true,
        })
        *totalP++
    }
    return nil
})

var total int
totalP := &total
DB.Table("users").ChunkById(&[]User{}, 10, func(dest interface{}) error {
    us := dest.(*[]User)
    for _, user := range *us {
        assert.Equal(t, user.UserName, sql.NullString{
            String: fmt.Sprintf("user-%d", user.Age),
            Valid:  true,
        })
        *totalP++
    }
    return nil
})
//Query clause 
DB.Where("name","john@apple.com").OrWhere("email","john@apple.com").First(&user)

DB.Where("is_admin", 1).Where(map[string]interface{}{
    "name": "Joe", "location": "LA",
}, db.BOOLEAN_OR).Where(func(builder *db.Builder){
    builder.WhereYear("created_at", "<", 2010).WhereColumn("first_name", "last_name").OrWhereNull("activited_at")
}).ToSql()
// sql:"select `name`, `age`, `email` where `is_admin` = ? or (`name` = ? and `location` = ?) and (year(`created_at`) < ? and `first_name` = `last_name` or `activited_at` is null)"

// Insert/Update/Delete
DB.Table("users").Insert(map[string]interface{}{
    "name":       "go-eloquent",
    "age":        18,
    "created_at": now,
})
DB.Table("users").Where("id", id).Update(map[string]interface{}{
    "name":       "newname",
    "age":        18,
    "updated_at": now.Add(time.Hour * 1),
})
DB.Table("users").Where("id", id).Delete()

```
More Details,visit [Docs](https://glitterlip.github.io/go-eloquent-docs/)
# Credits
[https://github.com/go-gorm/gorm](https://github.com/go-gorm/gorm)  
[https://github.com/jmoiron/sqlx](https://github.com/jmoiron/sqlx)  
[https://github.com/qclaogui/database](https://github.com/qclaogui/database)        

# 分支说明（v1-legacy）

`master` 分支现在是完全不同的新项目（fork 自 [doug-martin/goqu](https://github.com/doug-martin/goqu)
风格的 `exp` 表达式树 + `SelectDataset`/`InsertDataset`/`UpdateDataset`/`DeleteDataset`，历史
跟这条老线不相关），上面这份文档描述的 `db.Builder`/`DatabaseManager` 链式查询构造器只在
`v1-legacy` 分支上还继续维护。

给还在维护、但还没迁移到新架构的老项目用，比如 `zg-estate`（通过 `framework`/`contracts`/`orm`
间接依赖）。只接受独立于新架构的 bug 修复。

## 依赖方怎么安装/更新

Go modules 不会记住某个版本是从哪个分支解析出来的，`go.mod`/`go.sum` 里存的只是一次性解析出
的 commit 伪版本号，分支上有新提交也不会自动同步。

**首次锁定，或者要拿这个分支上新提交的更新**，都执行同一条命令：

```
go get git.fsdpf.net/go/db@v1-legacy
```

**禁止**跑裸的 `go get -u`（或者 `go get git.fsdpf.net/go/db@latest`）——`master` 现在是历史
完全不相关的新项目，`@latest`/`-u` 会解析到 `master` 的 HEAD，等于直接换成一个 API 完全不兼容
的实现，而不是停留在这个分支上。