问如何在带有实体框架的ASP .NET MVC中创建和初始化一个没有视图的对象？

EN

public partial class Movie
{   
    public int id { get; set; }
    public string name { get; set; }
    public virtual Rental Rental { get; set; }
}

public partial class Rental
{
    public int id { get; set; }
    public int itemID { get; set; }
    public string renterName { get; set; }
    public System.DateTime date { get; set; }
    public virtual Movie Movie { get; set; }
}

@model Project.Models.Movie

@{
    ViewBag.Title = "Details";
}

<h2>Details</h2>

<div>
    <h4>Movie</h4>
    <hr />
    <dl class="dl-horizontal">

    <dt>
        @Html.DisplayNameFor(model => model.name)
    </dt>

    <dd>
        @Html.Raw(Model.name)
    </dd>

    <dd>
        @using (Html.BeginForm("Create", "Rental", new { id = Model.id, returnURL = HttpContext.Current.Request.Url.AbsolutePath }, FormMethod.Post, new { @id = "createForm", @class = "navbar-right" }))
        {
            @Html.AntiForgeryToken()
            <a class="navbar-nav" href="javascript:document.getElementById('createForm').submit()">Rent</a>
        }
    </dd>
</dl>
</div>
<p>
    @Html.ActionLink("Edit", "Edit", new { id = Model.id }) |
    @Html.ActionLink("Back to List", "Index")
</p>

public class RentalController : Controller
{
    private CatalogEntities db = new CatalogEntities();

    // POST: Rental/Create
    [HttpPost]
    [ValidateAntiForgeryToken]
    public ActionResult Create(int id, string returnURL)
    {
        Rental rental = new Rental() { itemID = id, renterName = "User" };
        db.Rentals.Add(rental);
        db.SaveChanges();
        return Redirect(returnURL);
    }
}