internal async Task <Restroom> SaveRestroomAsync(Restroom model)
        {
            Entity.Restroom restroom = null;
            if (model.RestroomId > 0)
            {
                var r = await RestroomUnitOfWork.GetRestroomAsync(model.RestroomId);

                restroom = model.ToDataAccessFrom(r);
                Logger.WriteDebug("SaveRestroomAsync->After GetRestroomAsync and ToDataAccessFrom:" + JsonConvert.SerializeObject(restroom));
            }
            else
            {
                restroom           = model.ToDataAccess();
                restroom.UpdUserId = CurrentUserName;
            }

            var hasContact     = false;
            var contactChanged = false;


            hasContact = !string.IsNullOrWhiteSpace(model.ContactName) ||
                         !string.IsNullOrWhiteSpace(model.ContactTitle) ||
                         !string.IsNullOrWhiteSpace(model.ContactEmail) ||
                         !string.IsNullOrWhiteSpace(model.ContactPhone);
            Entity.Contact contact = null;

            if (!hasContact && restroom.ContactId.HasValue && restroom.ContactId > 0)
            {
                restroom.ContactId = null;
                restroom.Contact   = null;
            }

            else if (restroom.ContactId.HasValue && restroom.ContactId > 0)
            {
                contact = await RestroomUnitOfWork.GetByIdAsync <Entity.Contact, int>(restroom.ContactId.Value);

                if (contact.ContactName != model.ContactName ||
                    contact.Title != model.ContactTitle ||
                    contact.Email != model.ContactEmail ||
                    contact.Phone != model.ContactPhone ||
                    contact.ServiceProvider != model.ServiceProvider
                    )
                {
                    contactChanged = true;
                }
            }

            if (contactChanged || (hasContact && (!restroom.ContactId.HasValue || restroom.ContactId == 0)))
            {
                contact = new Entity.Contact
                {
                    Title           = model.ContactTitle,
                    Email           = model.ContactEmail,
                    Phone           = model.ContactPhone,
                    ContactName     = model.ContactName,
                    ServiceProvider = model.ServiceProvider
                };
                contact          = RestroomUnitOfWork.Create(contact);
                restroom.Contact = contact;
            }


            //restroom.Active = true;
            restroom.StatusListId = 1;  // always pending...
            try
            {
                var savedModel = await RestroomUnitOfWork.SaveRestroomAsync(restroom);

                return(savedModel == null ? null : Restroom.FromDataAccess(savedModel));
            }
            catch (DbEntityValidationException ex)
            {
                var errTxt = ex.GetStringRepresentation();
                Logger.WriteError("RestroomHandler.SaveRestroomAsync.DbEntityValidationException -> EntityValidationErrors : \r\n" + errTxt);
                throw;
            }
        }