MVC 5 Razor code-first EF Junction Table with IdentityUser - asp.net-mvc

Question

So I've got these 2 class and User coming from individual user accounts
public class User : IdentityUser
{
[Required]
public string FirstName { get; set; }
[Required]
public string LastName { get; set; }
[Required]
public string Email { get; set; }
public virtual ICollection<Basket> Baskets { get; set; }
}
public class Basket
{
[DatabaseGenerated(DatabaseGeneratedOption.None)]
[Key]
public int BasketId { get; set; }
public string Name { get; set; }
public int Words { get; set; }
public virtual ICollection<User> Users { get; set; }
}
EF has created UserBaskets with 2 FK. I have items in my Basket class that I seeded.
My question is, how can I add row to my junction table in the controller? For example, a logged user click on a basket and return the Id...Now I've got
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Basket(int? basketid)
{
if (ModelState.IsValid)
{
var job = User.Identity.GetUserId();
job.Baskets.Add(basketid);
db.Users.Add(job);
db.SaveChanges();
return RedirectToAction("Basket");
}
return View(db.Baskets.ToList());
}
Thank you for any help.

Answer 1

I finally chose to add a junction table manually
public class UserBasket
{
[Key]
public int UserBasketId { get; set; }
public virtual User User { get; set; }
public virtual Basket Basket { get; set; }
public DateTime Date { get; set; }
}
and could add a row using identityUser like this
UserManager<User> userManager = new UserManager<User>(new UserStore<User>(db));
var user = userManager.FindById(User.Identity.GetUserId());
Basket basket = db.Basket.Find(id);
var userbasket = new UserBasket {User = user, Basket = basket, Date = DateTime.Now };
db.UserBasket.Add(userbasket);
db.SaveChanges();