Method Scan

postgres/parser/uuid/sql.go:48–65

Scan implements the sql.Scanner interface. A 16-byte slice will be handled by UnmarshalBinary, while a longer byte slice or a string will be handled by UnmarshalText.

(src interface{})

// A 16-byte slice will be handled by UnmarshalBinary, while
// a longer byte slice or a string will be handled by UnmarshalText.
func (u *UUID) Scan(src interface{}) error {
	switch src := src.(type) {
	case UUID: // support gorm convert from UUID to NullUUID
		*u = src
		return nil

	case []byte:
		if len(src) == Size {
			return u.UnmarshalBinary(src)
		}
		return u.UnmarshalText(src)

	case string:
		return u.UnmarshalText([]byte(src))
	}

	return fmt.Errorf("uuid: cannot convert %T to UUID", src)
}

// NullUUID can be used with the standard sql package to represent a
// UUID value that can be NULL in the database.