public function updatestate(Request $request)
 {
     $id = $request->input('id');
     $state = $request->input('state');
     $values = ['id' => $id, 'state' => $state];
     Product::updateState($values);
     if ($state == 'ACTIVE') {
         return redirect()->action('ProductController@index', ['item' => $id]);
     }
     if ($state == 'DELETED') {
         return redirect('results')->with('status', 'Product has been deleted successfully');
     }
 }