id

id.go

package main

import (
	"database/sql/driver"

	"github.com/google/uuid"
)

type ID string

func NewID() ID {
	return ID(uuid.New().String())
}

func (id ID) Empty() bool {
	return id == ""
}

func (id ID) String() string {
	return string(id)
}

// Scan implements the database/sql Scanner interface.
func (id *ID) Scan(src interface{}) error {
	if src == nil {
		*id = ""
		return nil
	}
	*id = ID(src.(string))
	return nil
}

// Value implements the database/sql/driver Valuer interface.
func (id ID) Value() (driver.Value, error) {
	if id == "" {
		return nil, nil
	}
	return id.String(), nil
}