venue_controller.rb

  def index
    if Rails.env == "development"
      longitude = "-95.2752"
      latitude = "29.9459"
    else
      longitude = request.location.longitude
      latitude = request.location.latitude
    end

    @venues = Venue.near([latitude, longitude].join(", "), 60)

    respond_to do |format|
      format.html # index.html.erb
      format.json { render json: @venues }
    end
  end