public ActionResult EditRoom(int? id)
{
RoomViewModel viewModel;
if (id.HasValue)
{
var existingRoom = this.Db.ChatRooms.Find(id);
if (existingRoom == null)
throw new Exception("Cannot edit room. Room not found. Room id: " + id);
viewModel = new RoomViewModel
{
Id = existingRoom.Id,
RoomName = existingRoom.Name,
Description = existingRoom.Description
};
}
else
viewModel = new RoomViewModel();
return this.View(viewModel);
}
public ActionResult EditRoom(RoomViewModel viewModel)
{
if ((!viewModel.Id.HasValue && !string.IsNullOrEmpty(viewModel.RoomName) &&
this.Db.ChatRooms.Any(m => m.Name == viewModel.RoomName))
||
(viewModel.Id.HasValue &&
this.Db.ChatRooms.Any(m => m.Name == viewModel.RoomName && m.Id != viewModel.Id)))
this.ModelState.AddModelError("RoomName", "There's already a room with the given name");
if (this.ModelState.IsValid)
{
ChatRoom room;
if (viewModel.Id.HasValue)
{
// it's an existing room
room = this.Db.ChatRooms.Find(viewModel.Id);
if (room == null)
throw new Exception("Cannot edit room. Room not found. Room id: " + viewModel);
room.Name = viewModel.RoomName;
room.Description = viewModel.Description;
}
else
{
room = this.Db.ChatRooms.Add(new ChatRoom
{
Name = viewModel.RoomName,
Description = viewModel.Description
});
}
this.Db.SaveChanges();
return this.RedirectToAction("Index", "Dashboard");
}
return this.View(viewModel);
}