public void CreateComment(int customerID, string description, int movieID)
        {
            using (CinemaEntities database = new CinemaEntities())
            {
                Comment newComment = database.Comment.Create();

                //obecna data
                DateTime myDateTime = DateTime.Now;
                //format daty poprawny do sql
                string sqlFormattedDate = myDateTime.ToString("yyyy-MM-dd HH:mm");

                newComment.Comment_ID  = Convert.ToInt32(database.sp_getSeqCommentID().FirstOrDefault());
                newComment.Customer_ID = customerID;
                newComment.Movie_ID    = movieID;
                newComment.Description = description;
                newComment.Date        = DateTime.Parse(sqlFormattedDate);

                database.Comment.Add(newComment);
                database.SaveChanges();
            }
        }