public function update($id)
{
$input = Input::all();
$report_builder = BuiltReport::findOrFail($id);
$input = $this->formatInput($input);
$report_builder->update($input);
Session::put('download_file', $id);
return Redirect::to('backend/report-builder')->with('success_message', trans('success_messages.report_builder_update'));
}