/**
  * Update the specified resource in storage.
  *
  * @param  \Illuminate\Http\Request $request
  * @param  int                      $id
  *
  * @return \Illuminate\Http\Response
  */
 public function update(Request $request, $id)
 {
     $category = Category::find($id);
     if ($category) {
         $requestData = $request->input('category');
         foreach ($requestData as $fieldName => $fieldValue) {
             $category->{$fieldName} = $fieldValue;
         }
         if ($category->save()) {
             return response()->json(['category' => $category]);
         }
     }
     return response()->json('informati nu s-a salvat', 500);
 }