package guestbook const DateFormat = "2006-01-02 15:04:05" type Guestbook interface { Entries(page, pageSize int64) ([]*Entry, error) Count() (int64, error) NewEntry(entry *Entry) error EditEntry(entry *Entry) error DeleteEntry(entryID int64) error NewReply(reply *Reply) error EditReply(reply *Reply) error DeleteReply(entryID int64) error Close() error }