dbr: simple orm for golang

memo

package main

import (
    "database/sql"
    "fmt"
    "log"

    _ "github.com/go-sql-driver/mysql"
    "github.com/gocraft/dbr"
)

const (
    mysqlDSN = "interop:interop@tcp(localhost:3306)/interop2016"
)

type DoorMeta struct {
    Id        int64        `db:"id"`
    Name      string       `db:"name"`
    Value     string       `db: "value"`
    CreatedAt dbr.NullTime `db: "created_at"`
}

func main() {
    var result sql.Result
    var err error

    // Open connection
    conn, _ := dbr.Open("mysql", mysqlDSN, nil)
    // Create session
    sess := conn.NewSession(nil)

    // Insert
    result, err = sess.InsertInto("door_meta").
        Columns("name", "value").
        Values("foo2", "bar").
        Exec()

    if err != nil {
        log.Fatal(err)
    } else {
        count, _ := result.RowsAffected()
        fmt.Println(count)
    }

    // Insert with struct
    meta := &DoorMeta{Name: "foofoo", Value: "barbar"}
    sess.InsertInto("door_meta").
        Columns("name", "value").
        Record(meta). // Watch out! this is not Values
        Exec()

    // Select
    var m []DoorMeta
    sess.Select("*").From("door_meta").Load(&m)

    fmt.Println(m)

    // Update
    result, err = sess.Update("door_meta").
        Set("name", "giwa").
        Where("name = ?", "foo").
        Exec()

    if err != nil {
        log.Fatal(err)
    } else {
        count, _ := result.RowsAffected()
        fmt.Println(count)
    }

    fmt.Println(m[0].CreatedAt.Time)
}