add support for pointers to time and if nil put null in json response

request.go

@@ -154,7 +154,6 @@ func unmarshalNode(data *Node, model reflect.Value, included *map[string]*Node)
 			v := reflect.ValueOf(val)
 
 			if fieldValue.Type() == reflect.TypeOf(time.Time{}) {
-
 				var at int64
 
 				if v.Kind() == reflect.Float64 {
@@ -173,6 +172,26 @@ func unmarshalNode(data *Node, model reflect.Value, included *map[string]*Node)
 				return false
 			}
 
+			if fieldValue.Type() == reflect.TypeOf(new(time.Time)) {
+				var at int64
+
+				if v.Kind() == reflect.Float64 {
+					at = int64(v.Interface().(float64))
+				} else if v.Kind() == reflect.Int {
+					at = v.Int()
+				} else {
+					er = errors.New("Only numbers can be parsed as dates, unix timestamps")
+					return false
+				}
+
+				v := time.Unix(at, 0)
+				t := &v
+
+				fieldValue.Set(reflect.ValueOf(t))
+
+				return false
+			}
+
 			if fieldValue.Kind() == reflect.Int && v.Kind() == reflect.Float64 {
 				fieldValue.Set(reflect.ValueOf(int(v.Interface().(float64))))
 			} else {

response.go

@@ -203,6 +203,22 @@ func visitModelNode(model interface{}, sideload bool) (*Node, []*Node, error) {
 				unix := fieldValue.MethodByName("Unix")
 				val := unix.Call(make([]reflect.Value, 0))[0]
 				node.Attributes[args[1]] = val.Int()
+			} else if fieldValue.Type() == reflect.TypeOf(new(time.Time)) {
+				// A time pointer may be nil
+				t := reflect.ValueOf(fieldValue.Interface())
+				if t.IsNil() {
+					node.Attributes[args[1]] = nil
+				} else {
+					isZeroMethod := fieldValue.MethodByName("IsZero")
+					isZero := isZeroMethod.Call(make([]reflect.Value, 0))[0].Interface().(bool)
+					if isZero {
+						return false
+					}
+
+					unix := fieldValue.MethodByName("Unix")
+					val := unix.Call(make([]reflect.Value, 0))[0]
+					node.Attributes[args[1]] = val.Int()
+				}
 			} else {
 				node.Attributes[args[1]] = fieldValue.Interface()
 			}