public void AddLikes(Likes likes)
 {
     using (var context = new QuestionContext(_connectionString))
     {
         context.Likes.Add(likes);
         context.SaveChanges();
     }
 }
 public bool IsQuestionLikedByUser(int questionId, int userId)
 {
     using (var context = new QuestionContext(_connectionString))
     {
         Likes l = context.Likes.FirstOrDefault(likes => likes.QuestionId == questionId && likes.UserId == userId);
         if (l is null)
         {
             return(false);
         }
         else
         {
             return(true);
         }
     }
 }