Backbone Model.save doesn't wrap model state to nested object

Question

Backbone Model.save doesn't wrap model state to nested object. Is it normal?

Typical scenario for Rails is something like this params[:product]. How could I achieve this?

Answer 1

This was answered previously: Saving nested objects with Rails, backbone.js, and accepts_nested_attributes_for

I would suggest to override toJSON on the backbone model.

toJSON: function(){

  json = {car : this.attributes};
  return _.extend(json, {engine_attributes: this.get("engine").toJSON());

}

toJSON is called within the sync method just before sending data to the backend.