class ProductsController extends Controller
{
    public function store(Request $request)
    {
        if ($request->input('FormProductDataId') !== Session::get('current_viewed_product_id')) {
        abort(403); // bump
    }
    else {
        // database logic...
        Session::remove('current_viewed_product_id');
    }
    }

    public function show(Request $request, $id)
    {
    Session::set('current_viewed_product_id', $id);
        return view('products');
    }
}