def new
      @export = Export.new
      @dbs = get_dbs
      @tables = db_metadata
      respond_to do |format|
        format.html # new.html.erb
        format.json { render json: @export }
      end
    end
def new
      @export = Export.new
      @dbs = get_dbs
      @tables = db_metadata
      respond_to do |format|
        format.html # new.html.erb
        format.json { render json: @export }
      end
    end
GET /exports/new
 GET /exports/new.json