如何通过复杂的视图模型到服务层在ASP.NET MVC？ [英] How to pass complex ViewModel to Service Layer in ASP.NET MVC?

问题描述

说我有RegisterModel的用户注册和一些UserService，实施IUserService

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);
        }

由于RegisterModel可能是非常复杂的，哪里是逻辑应该去映射RegisterModel到用户对象

Given that RegisterModel might be very complex, where is the logic should go for mapping RegisterModel to User object

推荐答案

您永远传递一个视图模型到服务。服务甚至不知道，你可能在你的GUI（ASP.NET MVC）层定义视图模型的存在。服务与域模型作品。我个人使用 AutoMapper 以视图模型和模型，反之亦然之间进行映射，所以这个逻辑进入映射层。

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.

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