json.Marshal/Unmarshal appengine.GeoPoint

[cybercent]

Hi,

Properties of type appengine.GeoPoint are not marshaled into json. Could marshaling/unmarshaling of appengine.GeoPoint be added to the package ?

Meanwhile, if someone encounters the same issue, here is a workaround:

type GeoPointJson appengine.GeoPoint

func (g *GeoPointJson) UnmarshalJSON(b []byte) (err error) {
	var jm map[string]float64
	if err = json.Unmarshal(b, &jm); err == nil {
		g.Lat = jm["lat"]
		g.Lng = jm["lon"]
	}
	return
}

func (g *GeoPointJson) MarshalJSON() ([]byte, error) {
	jm := make(map[string]float64)
	jm["lat"] = g.Lat
	jm["lon"] = g.Lng
	return json.Marshal(jm)
}

struct MyEntity {
    Location   GeoPointJson `datastore:"location" json:"location"`
}

Edit: It actually works as expected. Will close this issue.