1 // Copyright (C) 2013-2018 by Maxim Bublis <b@codemonkey.ru>
3 // Permission is hereby granted, free of charge, to any person obtaining
4 // a copy of this software and associated documentation files (the
5 // "Software"), to deal in the Software without restriction, including
6 // without limitation the rights to use, copy, modify, merge, publish,
7 // distribute, sublicense, and/or sell copies of the Software, and to
8 // permit persons to whom the Software is furnished to do so, subject to
9 // the following conditions:
11 // The above copyright notice and this permission notice shall be
12 // included in all copies or substantial portions of the Software.
14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
15 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
16 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
17 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
18 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
19 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
20 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 // Value implements the driver.Valuer interface.
30 func (u UUID) Value() (driver.Value, error) {
31 return u.String(), nil
34 // Scan implements the sql.Scanner interface.
35 // A 16-byte slice is handled by UnmarshalBinary, while
36 // a longer byte slice or a string is handled by UnmarshalText.
37 func (u *UUID) Scan(src interface{}) error {
38 switch src := src.(type) {
41 return u.UnmarshalBinary(src)
43 return u.UnmarshalText(src)
46 return u.UnmarshalText([]byte(src))
49 return fmt.Errorf("uuid: cannot convert %T to UUID", src)
52 // NullUUID can be used with the standard sql package to represent a
53 // UUID value that can be NULL in the database
54 type NullUUID struct {
59 // Value implements the driver.Valuer interface.
60 func (u NullUUID) Value() (driver.Value, error) {
64 // Delegate to UUID Value function
68 // Scan implements the sql.Scanner interface.
69 func (u *NullUUID) Scan(src interface{}) error {
71 u.UUID, u.Valid = Nil, false
75 // Delegate to UUID Scan function
77 return u.UUID.Scan(src)