+++ /dev/null
-// Copyright 2015 Google Inc. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package uuid
-
-import (
- "database/sql/driver"
- "errors"
- "fmt"
-)
-
-// Scan implements sql.Scanner so UUIDs can be read from databases transparently
-// Currently, database types that map to string and []byte are supported. Please
-// consult database-specific driver documentation for matching types.
-func (uuid *UUID) Scan(src interface{}) error {
- switch src.(type) {
- case string:
- // if an empty UUID comes from a table, we return a null UUID
- if src.(string) == "" {
- return nil
- }
-
- // see uuid.Parse for required string format
- parsed := Parse(src.(string))
-
- if parsed == nil {
- return errors.New("Scan: invalid UUID format")
- }
-
- *uuid = parsed
- case []byte:
- b := src.([]byte)
-
- // if an empty UUID comes from a table, we return a null UUID
- if len(b) == 0 {
- return nil
- }
-
- // assumes a simple slice of bytes if 16 bytes
- // otherwise attempts to parse
- if len(b) == 16 {
- *uuid = UUID(b)
- } else {
- u := Parse(string(b))
-
- if u == nil {
- return errors.New("Scan: invalid UUID format")
- }
-
- *uuid = u
- }
-
- default:
- return fmt.Errorf("Scan: unable to scan type %T into UUID", src)
- }
-
- return nil
-}
-
-// Value implements sql.Valuer so that UUIDs can be written to databases
-// transparently. Currently, UUIDs map to strings. Please consult
-// database-specific driver documentation for matching types.
-func (uuid UUID) Value() (driver.Value, error) {
- return uuid.String(), nil
-}