/**
  * Update the specified resource in storage.
  *
  * @param  \Illuminate\Http\Request  $request
  * @param  int  $id
  * @return \Illuminate\Http\Response
  */
 public function update(Request $request, Article $article)
 {
     $article->update($request->except('image', 'published_at'));
     // first update the texts only
     $imageStatus = $article->updateImage($request);
     if ($request->input('tag_list') === null) {
         $tagList = [];
     } else {
         $tagList = $request->input('tag_list');
     }
     $article->tags()->sync($tagList);
     return redirect('articles/' . $article->id . '')->with('message', 'Updated Article Successfully' . $imageStatus);
 }