source

Documentation

Index

• Variables
• func Register(name string, r Reader)
• type Migration
  • func (mig *Migration) Goto(v int) error
  • func (mig *Migration) Next() (string, int, error)
  • func (mig *Migration) SetMax(v int)
  • func (mig *Migration) Ver() int
• type Migrations
  • func (migs Migrations) Goto(m Module, v int) error
  • func (migs Migrations) List() []Module
  • func (migs Migrations) Next(m Module) (string, int, error)
  • func (migs Migrations) Ver(m Module) (int, error)
• type Module
• type Reader
  • func Open(scheme string, uri string) (Reader, error)

Variables

var (
	ErrNoModule error = fmt.Errorf("no this module")
	ErrTop      error = fmt.Errorf("beyond the up limit")
	ErrBottom   error = fmt.Errorf("beyond the bottom limit")
)

Functions

func Register

func Register(name string, r Reader)

Types

type Migration

type Migration struct {
	MaxVer  int
	Version int
	Sql     map[int]string
}

func (*Migration) Goto

func (mig *Migration) Goto(v int) error

func (*Migration) Next

func (mig *Migration) Next() (string, int, error)

func (*Migration) SetMax

func (mig *Migration) SetMax(v int)

func (*Migration) Ver

func (mig *Migration) Ver() int

type Migrations

type Migrations map[Module]*Migration

func (Migrations) Goto

func (migs Migrations) Goto(m Module, v int) error

func (Migrations) List

func (migs Migrations) List() []Module

func (Migrations) Next

func (migs Migrations) Next(m Module) (string, int, error)

func (Migrations) Ver

func (migs Migrations) Ver(m Module) (int, error)

type Module

type Module string

type Reader

type Reader interface {
	Open(string) (Reader, error)
	Goto(Module, int) error
	Next(Module) (string, int, error)
	List() []Module
}

func Open

func Open(scheme string, uri string) (Reader, error)