How to pass complex ViewModel to Service Layer in ASP.NET MVC?
-
15-11-2019 - |
Question
Say I have RegisterModel for user registration and some UserService that implementing IUserService
public interface IUserService
{
User CreateUser(User newUser);
}
[HttpPost]
public ActionResult Register(RegisterModel model)
{
if (ModelState.IsValid)
{
// ... logic for newuser
User user = _userService.CreateUser(newuser);
_authenticationService.SetAuthenticatedUser(user);
return RedirectToRoute("Homepage");
}
return View(model);
}
Given that RegisterModel might be very complex, where is the logic should go for mapping RegisterModel to User object
Solution
You never pass a view model to a service. A service doesn't even know about the existence of a view model that you might have defined in your GUI (ASP.NET MVC) tier. A service works with domain models. Personally I use AutoMapper to map between view models and models and vice versa, so this logic goes into the mapping layer.
Licensed under: CC-BY-SA with attribution
Not affiliated with StackOverflow