/**
  * Update the specified resource in storage.
  *
  * @param  int  $id
  *
  * @return Response
  */
 public function update(Request $request, Group $group, Action $action)
 {
     $action->name = $request->input('name');
     $action->body = $request->input('body');
     $action->start = Carbon::createFromFormat('Y-m-d H:i', $request->input('start'));
     $action->stop = Carbon::createFromFormat('Y-m-d H:i', $request->input('stop'));
     if ($action->location != $request->input('location')) {
         // we need to update user address and geocode it
         $action->location = $request->input('location');
         if (!$action->geocode()) {
             flash()->error(trans('messages.address_cannot_be_geocoded'));
         } else {
             flash()->info(trans('messages.ressource_geocoded_successfully'));
         }
     }
     //$action->user()->associate($request->user()); // we use revisionable to manage who changed what, so we keep the original author
     if ($action->isInvalid()) {
         // Oops.
         return redirect()->action('ActionController@create', $group_id)->withErrors($action->getErrors())->withInput();
     }
     $action->save();
     return redirect()->action('ActionController@show', [$action->group->id, $action->id]);
 }