public IHttpActionResult Put(int id, AssignmentModel assignment)
		{
			if (!this.ModelState.IsValid)
			{
				return BadRequest(ModelState);
			}

			var existingAssignment = this.GetCurrentAssignment(id);
			if (existingAssignment == null)
			{
				return BadRequest("Assignment does not exist.");
			}

			var newAssignment = new Assignment
			{
				Name = assignment.Name,
				Description = assignment.Description,
				Priority = assignment.Priority,
				Status = (AssignmentStatus)Enum.Parse(typeof(AssignmentStatus), assignment.Status)
			};

			existingAssignment = newAssignment;
			this.data.SaveChanges();

			return Ok();
		}
		public IHttpActionResult Create(int id, AssignmentModel assignment)
		{
			if (!this.ModelState.IsValid)
			{
				return BadRequest(this.ModelState);
			}

			var teamwork = this.data.TeamWorks.Find(id);
			if (teamwork == null)
			{
				return BadRequest("Teamwork does not exist - invalid id");
			}

			var newAssignment = new Assignment
			{
				Name = assignment.Name,
				Description = assignment.Description,
				Priority = assignment.Priority
			};

            teamwork.Assignments.Add(newAssignment);
			this.data.SaveChanges();

			assignment.Id = newAssignment.Id;
			return Ok(assignment);
		}