public void CreateComplaint(int customerID, string description)
        {
            using (CinemaEntities database = new CinemaEntities())
            {
                Complaint newComplaint = database.Complaint.Create();

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

                newComplaint.Complaint_ID = Convert.ToInt32(database.sp_getSeqComplaintID().FirstOrDefault());
                newComplaint.Customer_ID  = customerID;
                newComplaint.Description  = description;
                newComplaint.Date         = DateTime.Parse(sqlFormattedDate);

                database.Complaint.Add(newComplaint);
                database.SaveChanges();
            }
        }