public HttpResponseMessage Put(int id, ServiceModel.UpdateThingViewModel viewModel)
{
var thingEditor = context.GetAll <DomainModel.User>()
.FirstOrDefault(u => u.Id == viewModel.EditedById);
var thing = context.GetAll <DomainModel.Thing>()
.FirstOrDefault(u => u.Id == id);
if (thingEditor == null)
{
ModelState.AddModelError("", "Invalid Editor");
}
if (thing == null)
{
ModelState.AddModelError("", "Invalid Thing");
}
if (thing != null && thing.OwnerId != thingEditor.Id)
{
ModelState.AddModelError("", "A Thing can only be edited by its owner");
}
if (!ModelState.IsValid)
{
return(Request.CreateResponse(HttpStatusCode.BadRequest, ModelState.ToJson()));
}
foreach (var userId in viewModel.AssignedTo)
{
//already assigned
if (thing.AssignedTo.Any(at => at.AssignedToUserId == userId))
{
continue;
}
var assignedTo = context.GetAll <DomainModel.User>()
.FirstOrDefault(u => u.Id == userId);
if (assignedTo == null)
{
throw new HttpResponseException(Request.CreateResponse(HttpStatusCode.NotFound, "Invalid User Assigned to Thing"));
}
thing.AssignedTo.Add(new DomainModel.UserThing(thing, assignedTo, thingEditor));
}
//removed users
var removedUserIds = thing.AssignedTo.Select(at => at.AssignedToUserId).Except(viewModel.AssignedTo);
var addedUserIds = viewModel.AssignedTo.Except(thing.AssignedTo.Select(at => at.AssignedToUserId));
var removedUserThings = thing.AssignedTo.Where(at => removedUserIds.Contains(at.AssignedToUserId)).ToList();
var newUserThings = thing.AssignedTo.Where(at => addedUserIds.Contains(at.AssignedToUserId)).ToList();
context.Delete(removedUserThings);
thing.Description = viewModel.Description;
context.SaveChanges();
emailService.ThingAssigned(newUserThings.Select(x => x.AssignedToUser).ToArray(), thing, thingEditor).Send();
emailService.ThingUnassigned(newUserThings.Select(x => x.AssignedToUser).ToArray(), thing, thingEditor).Send();
var sThing = thing.MapToServiceModel();
var response = Request.CreateResponse(HttpStatusCode.OK, sThing);
response.Headers.Location = new Uri(Request.RequestUri, "/api/thing/" + thing.Id.ToString());
return(response);
}
