public static function getScored(User $user, FormDefinition $form)
 {
     try {
         $submissions = new Collection();
         $scores = Scores::where('form_definition_id', $form->id)->where('user_id', $user->id)->get();
         foreach ($scores as $score) {
             $submissions->push($score->submission()->first());
         }
         return $submissions;
     } catch (\Exception $e) {
         return new Collection();
     }
 }