v0.0.313

rfctime/unixNano.go

@@ -2,6 +2,13 @@ package rfctime
 
 import (
 	"encoding/json"
+	"errors"
+	"fmt"
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/bson/bsoncodec"
+	"go.mongodb.org/mongo-driver/bson/bsonrw"
+	"go.mongodb.org/mongo-driver/bson/bsontype"
+	"reflect"
 	"strconv"
 	"time"
 )
@@ -59,6 +66,63 @@ func (t *UnixNanoTime) UnmarshalText(data []byte) error {
 	return nil
 }
 
+func (t *UnixNanoTime) UnmarshalBSONValue(bt bsontype.Type, data []byte) error {
+	if bt == bson.TypeNull {
+		// we can't set nil in UnmarshalBSONValue (so we use default(struct))
+		// Use mongoext.CreateGoExtBsonRegistry if you need to unmarsh pointer values
+		// https://stackoverflow.com/questions/75167597
+		// https://jira.mongodb.org/browse/GODRIVER-2252
+		*t = UnixNanoTime{}
+		return nil
+	}
+	if bt != bson.TypeDateTime {
+		return errors.New(fmt.Sprintf("cannot unmarshal %v into RFC3339NanoTime", bt))
+	}
+	var tt time.Time
+	err := bson.RawValue{Type: bt, Value: data}.Unmarshal(&tt)
+	if err != nil {
+		return err
+	}
+	*t = UnixNanoTime(tt)
+	return nil
+}
+
+func (t UnixNanoTime) MarshalBSONValue() (bsontype.Type, []byte, error) {
+	return bson.MarshalValue(time.Time(t))
+}
+
+func (t UnixNanoTime) DecodeValue(dc bsoncodec.DecodeContext, vr bsonrw.ValueReader, val reflect.Value) error {
+	if val.Kind() == reflect.Ptr && val.IsNil() {
+		if !val.CanSet() {
+			return errors.New("ValueUnmarshalerDecodeValue")
+		}
+		val.Set(reflect.New(val.Type().Elem()))
+	}
+
+	tp, src, err := bsonrw.Copier{}.CopyValueToBytes(vr)
+	if err != nil {
+		return err
+	}
+
+	if val.Kind() == reflect.Ptr && len(src) == 0 {
+		val.Set(reflect.Zero(val.Type()))
+		return nil
+	}
+
+	err = t.UnmarshalBSONValue(tp, src)
+	if err != nil {
+		return err
+	}
+
+	if val.Kind() == reflect.Ptr {
+		val.Set(reflect.ValueOf(&t))
+	} else {
+		val.Set(reflect.ValueOf(t))
+	}
+
+	return nil
+}
+
 func (t UnixNanoTime) Serialize() string {
 	return strconv.FormatInt(t.Time().UnixNano(), 10)
 }