getPlace(objId: string) : Promise<Place> {
   var query = new Backendless.DataQuery();
   query.options = { relations: ["location"] };
   // query.options = {relationsDepth:1};
   query.condition="objectId='" + objId + "'" ;
   return Backendless.Data.of(Place).findById(objId, 1);
 }

 .then(()=>Backendless.Data.of(Likes).find(query));

 updatePlace(place:Place) {
   return Backendless.Data.of(Place).save(place);
 }

 deletePlace(place:Place) {
   return Backendless.Data.of(Place).remove(place);
 }

 getPlaces() {
   var query = new Backendless.DataQuery();
   query.options = { relations: ["location"] };
   return Backendless.Data.of(Place).find(query);
 }

 createPlace(place: Place) : Promise<Place>{
   return Backendless.Data.of(Place).save(place);
 }

 getPlaces() {
   return Backendless.Data.of(Place).find();
 }