public function postAddDiscussion(Request $request)
 {
     $input = $request->only(['text', 'parent', 'article_id']);
     if ($input['text'] == '') {
         if ($request->ajax()) {
             return response()->json();
         }
         return redirect()->back();
     }
     $input['article_id'] = Article::findBySlugOrIdOrFail($input['article_id'])->id;
     $input['user_id'] = \Auth::id();
     $discussion = Discussion::create($input);
     if ($request->ajax()) {
         return response()->json($discussion);
     } else {
         flash()->success('Príspevok bol pridaný do diskusie');
         return redirect()->back();
     }
 }
 public function getDelete(Request $request, $id)
 {
     Article::findBySlugOrIdOrFail($id)->delete();
     flash()->success('Článok bol úspešne zmazaný');
     return redirect('/');
 }