aodin / manager

Totally not an ORM for Go

Manager

Totally not an ORM for Go.

For use with the SQL toolkits Sol and Fields.

Manager adds convenience methods such as Get, auto-joins, and injected conditional clauses to SQL tables.

// Serial and Timestamp will be set by the database
type Item struct {
    fields.Serial
    Name   string
    IsFree bool
    fields.Timestamp
}

func (item Item) Error(conn sol.Conn) *errors.Error {
    return nil
}

func (item *Item) Save(conn sol.Conn) error {
    return conn.Query(Items.Insert().Values(item).Returning(), item)
}

// Create a Table and immediately wrap it in a manager. Since the TableElem
// is embedded all its methods are available
var Items = postgres.Table("items",
    fields.Serial{},
    sol.Column("name", types.Varchar().Limit(32).NotNull()),
    sol.Column("is_free", types.Boolean().NotNull()),
    sol.PrimaryKey("id"),
    fields.Timestamp{},
)

var ItemsManager = manager.New(Items)

func main() {
    Items.Use(conn) // A connection must be set

    item := NewItem("a")
    Items.Save(&item) // Pass a pointer for database-level field assignments
    log.Println(item.Exists())

    Items.Get(&item, item.ID)
}

Extend the manager by embedding it in your own struct.

Happy Hacking!

aodin, 2016