public function edit(Request $request, Article $article, $id)
 {
     $data = $article->find($id);
     if (!$data) {
         return response()->json(['error' => 'data not found'], 404);
     }
     $article->edit($request, $id);
     return fractal()->item($this->article->find($id))->transformWith(new ArticleTransformer())->includeAuthors()->toArray();
 }