/**
  * Define your route model bindings, pattern filters, etc.
  *
  * @param  \Illuminate\Routing\Router  $router
  * @return void
  */
 public function boot(Router $router)
 {
     parent::boot($router);
     $router->bind('articles', function ($id) {
         return \App\articles::published()->findOrFail($id);
     });
     //      $router->model('articles','App\articles');
 }
 public function update($id, ArticleRequest $request)
 {
     $article = articles::findOrFail($id);
     $article->update($request->all());
     return redirect('articles');
 }