function showUser($id)
 {
     $user = User::find($id);
     $products = Product::where('user_id', $id)->get();
     $provider = Provider::where('user_id', $id)->first();
     return view('back.user', compact('user', 'products', 'provider'));
 }
 function updateProvider($id, Request $request)
 {
     $userProvider = User::find($id);
     $userProvider->validate = $userProvider->validate ? 0 : 1;
     $userProvider->save();
     if ($request->ajax()) {
         return response()->json(['name' => $userProvider->validate]);
     }
     return response()->json(['name' => $userProvider->validate]);
 }