// PUT api/Todo/5 public HttpResponseMessage PutTodoItem(int id, TodoItemDto todoItemDto) { if (!ModelState.IsValid) { return Request.CreateErrorResponse(HttpStatusCode.BadRequest, ModelState); } if (id != todoItemDto.TodoItemId) { return Request.CreateResponse(HttpStatusCode.BadRequest); } TodoItem todoItem = todoItemDto.ToEntity(); TodoList todoList = db.TodoLists.Find(todoItem.TodoListId); if (todoList == null) { return Request.CreateResponse(HttpStatusCode.NotFound); } // Need to detach to avoid duplicate primary key exception when SaveChanges is called db.Entry(todoList).State = EntityState.Detached; db.Entry(todoItem).State = EntityState.Modified; try { db.SaveChanges(); } catch (DbUpdateConcurrencyException) { return Request.CreateResponse(HttpStatusCode.InternalServerError); } return Request.CreateResponse(HttpStatusCode.OK); }
// POST api/Todo public HttpResponseMessage PostTodoItem(TodoItemDto todoItemDto) { if (!ModelState.IsValid) { return Request.CreateErrorResponse(HttpStatusCode.BadRequest, ModelState); } TodoList todoList = db.TodoLists.Find(todoItemDto.TodoListId); if (todoList == null) { return Request.CreateResponse(HttpStatusCode.NotFound); } TodoItem todoItem = todoItemDto.ToEntity(); // Need to detach to avoid loop reference exception during JSON serialization db.Entry(todoList).State = EntityState.Detached; db.TodoItems.Add(todoItem); db.SaveChanges(); todoItemDto.TodoItemId = todoItem.TodoItemId; HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.Created, todoItemDto); response.Headers.Location = new Uri(Url.Link("DefaultApi", new { id = todoItemDto.TodoItemId })); return response; }