```ruby
module Api
  module V2
    class StompingGroundsController < ApiController
      before_action :require_authentication

      #Get all the Stomping Grounds for a user
      def index
        stomping_grounds_hash = @traveler.stomping_grounds.map {|sg| StompingGroundSerializer.new(sg).to_hash}
        render(success_response(stomping_grounds_hash))
      end

      def destroy
        stomping_ground = @traveler.stomping_grounds.find_by(id: params[:id]) 
        if stomping_ground
          stomping_ground.delete
          render(success_response(message: "Deleted"))
        else
          render(fail_response(status: 404, message: "Not found"))
        end
      end

      def create
        stomping_ground = StompingGround.initialize_from_google_place_attributes(params[:stomping_ground])
        stomping_ground.user = @traveler
        if stomping_ground.save
          render(success_response(message: "Created a new Stomping Ground with id: #{stomping_ground.id}"))
        else
          render(fail_response(message: "Unable to create Stomping Ground"))
        end
      end

      def update
        stomping_ground = @traveler.stomping_grounds.find_by(id: params[:id]) 
        stomping_ground.update_from_google_place_attributes(params[:stomping_ground])
      end
      
    end
  end
end```

Return 200 on successful update and 404 when ID is not found for stomping ground
user
```ruby
module Api
  module V2
    class StompingGroundsController < ApiController
      before_action :require_authentication

      #Get all the Stomping Grounds for a user
      def index
        stomping_grounds_hash = @traveler.stomping_grounds.map {|sg| StompingGroundSerializer.new(sg).to_hash}
        render(success_response(stomping_grounds_hash))
      end

      def destroy
        stomping_ground = @traveler.stomping_grounds.find_by(id: params[:id]) 
        if stomping_ground
          stomping_ground.delete
          render(success_response(message: "Deleted"))
        else
          render(fail_response(status: 404, message: "Not found"))
        end
      end

      def create
        stomping_ground = StompingGround.initialize_from_google_place_attributes(params[:stomping_ground])
        stomping_ground.user = @traveler
        if stomping_ground.save
          render(success_response(message: "Created a new Stomping Ground with id: #{stomping_ground.id}"))
        else
          render(fail_response(message: "Unable to create Stomping Ground"))
        end
      end

      def update
        stomping_ground = @traveler.stomping_grounds.find_by(id: params[:id]) 
        if stomping_ground
          stomping_ground.update_from_google_place_attributes(params[:stomping_ground])
          render(success_response(message: "Updated"))
        else
          render(fail_response(status: 404, message: "Not found"))
        end

      end
      
    end
  end
end```
assistant