public function postArticle(Request $request)
 {
     $validate = \Validator::make($request->only('article_id', 'sort'), ['article_id' => 'required|numeric', 'sort' => 'required|numeric']);
     if ($validate->fails()) {
         abort(503);
     }
     $article = Article::findOrFail($request->input('article_id'));
     $recommend = new ArticleRecommend();
     $recommend->article_id = $article->id;
     $recommend->sort = $request->input('sort');
     $recommend->save();
     return redirect()->route('admin.recommend.index');
 }
 /**
  * Remove the specified resource from storage.
  *
  * @param  int $id
  *
  * @return Response
  */
 public function destroy($id)
 {
     Article::findOrFail($id)->delete();
     $xs = new \XS('inspirer');
     $xs->index->del($id);
     return redirect('admin/article');
 }