Merge pull request #2145 from grachevko/string

Implement pgtype.UUID.String()

pgtype/uuid.go

@@ -96,6 +96,14 @@ func (src UUID) Value() (driver.Value, error) {
  return encodeUUID(src.Bytes), nil
 }
 
+func (src UUID) String() string {
+ if !src.Valid {
+ return ""
+ }
+
+ return encodeUUID(src.Bytes)
+}
+
 func (src UUID) MarshalJSON() ([]byte, error) {
  if !src.Valid {
  return []byte("null"), nil

pgtype/uuid_test.go

@@ -63,6 +63,38 @@ func TestUUIDCodec(t *testing.T) {
  })
 }
 
+func TestUUID_String(t *testing.T) {
+ tests := []struct {
+ name string
+ src pgtype.UUID
+ want string
+ }{
+ {
+ name: "first",
+ src: pgtype.UUID{
+ Bytes: [16]byte{29, 72, 90, 122, 109, 24, 69, 153, 140, 108, 52, 66, 86, 22, 136, 122},
+ Valid: true,
+ },
+ want: "1d485a7a-6d18-4599-8c6c-34425616887a",
+ },
+ {
+ name: "third",
+ src: pgtype.UUID{
+ Bytes: [16]byte{},
+ },
+ want: "",
+ },
+ }
+ for _, tt := range tests {
+ t.Run(tt.name, func(t *testing.T) {
+ got := tt.src.String()
+ if !reflect.DeepEqual(got, tt.want) {
+ t.Errorf("MarshalJSON() got = %v, want %v", got, tt.want)
+ }
+ })
+ }
+}
+
 func TestUUID_MarshalJSON(t *testing.T) {
  tests := []struct {
  name string