/// <summary>
        /// Create a new employee
        /// </summary>
        /// <param name="model"></param>
        public HttpResponseMessage Post(EmployeeDetailModel model)
        {
            var employee = this.DataContext.Employees.Add(new Employee
            {
                FirstName = model.FirstName,
                LastName = model.LastName,
                Title = model.Title,
                HireDate = model.HireDate,
                Address = model.Address,
                City = model.City,
                Region = model.Region,
                PostalCode = model.PostalCode,
                Country = model.Country,
                HomePhone = model.HomePhone,
                Extension = model.Extension,
                Notes = model.Notes,
                ReportsTo = model.ManagerId,
                //Manager = model.ReportsTo.HasValue ? model.Manager.FirstName + " " + e.Manager.LastName : null,
            });
            this.DataContext.SaveChanges();

            HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.Created, employee);
            response.Headers.Location = new Uri(Url.Link("Api", new { controller = "Employees", id = employee.Id }));
            return response;
        }
        /// <summary>
        /// Update an existing employee
        /// </summary>
        /// <param name="model"></param>
        public HttpResponseMessage Put(EmployeeDetailModel model)
        {
            var employee = this.DataContext.Employees.Find(model.Id);

            if (employee == null)
            {
                return Request.CreateResponse(HttpStatusCode.NotFound);
            }

            employee.FirstName = model.FirstName;
            employee.LastName = model.LastName;
            employee.Title = model.Title;
            employee.HireDate = model.HireDate;
            employee.Address = model.Address;
            employee.City = model.City;
            employee.Region = model.Region;
            employee.PostalCode = model.PostalCode;
            employee.Country = model.Country;
            employee.HomePhone = model.HomePhone;
            employee.Extension = model.Extension;
            employee.Notes = model.Notes;
            employee.ReportsTo = model.ManagerId;
            this.DataContext.SaveChanges();

            return Request.CreateResponse(HttpStatusCode.OK, model);
        }