Identity - One to one relationship with RegisterViewModel - asp.net

Question

I'm new to MVC and have been pulling my hair out with this one. I'm already going bold so need someone to rescue what's left!
I'm using asp.net Identity and trying to create a one-to-one relationship between RegisterViewModel and StoreDetails and really hope someone can help me out!
Here is my RegisterViewModel:
public class RegisterViewModel
{
public string FirstName { get; set; }
public string LastName { get; set; }
[Required]
[EmailAddress]
[Display(Name = "Email")]
public string Email { get; set; }
[Required]
[StringLength(100, ErrorMessage = "The {0} must be at least {2} characters long.", MinimumLength = 6)]
[DataType(DataType.Password)]
[Display(Name = "Password")]
public string Password { get; set; }
[DataType(DataType.Password)]
[Display(Name = "Confirm password")]
[Compare("Password", ErrorMessage = "The password and confirmation password do not match.")]
public string ConfirmPassword { get; set; }
public virtual StoreDetails StoreDetails { get; set; }
}
Here is my StoreDetails model:
public class StoreDetails
{
[Key, ForeignKey("RegisterViewModel")]
public string StoreName { get; set; }
public virtual RegisterViewModel RegisterViewModel { get; set; }
}
Controller:
[HttpPost]
[AllowAnonymous]
[ValidateAntiForgeryToken]
public async Task<ActionResult> Register(RegisterViewModel model)
{
if (ModelState.IsValid)
{
var user = new ApplicationUser {
// PERSONAL DETAILS
UserName = model.Email,
Email = model.Email,
FirstName = model.FirstName,
LastName = model.LastName
};
var storeDetails = new StoreDetails {
// STORE DETAILS
StoreName = model.StoreDetails.StoreName
};
var result = await UserManager.CreateAsync(user, model.Password);
if (result.Succeeded)
{
await SignInManager.SignInAsync(user, isPersistent:false, rememberBrowser:false);
// For more information on how to enable account confirmation and password reset please visit https://go.microsoft.com/fwlink/?LinkID=320771
// Send an email with this link
// string code = await UserManager.GenerateEmailConfirmationTokenAsync(user.Id);
// var callbackUrl = Url.Action("ConfirmEmail", "Account", new { userId = user.Id, code = code }, protocol: Request.Url.Scheme);
// await UserManager.SendEmailAsync(user.Id, "Confirm your account", "Please confirm your account by clicking here");
// UPDATE DB WITH STORE DETAILS DATA
var db = new ApplicationDbContext();
db.StoreDetails.Add(new StoreDetails
{
StoreName = model.StoreDetails.StoreName
});
db.SaveChanges();
return RedirectToAction("Index", "Home");
}
AddErrors(result);
}
// If we got this far, something failed, redisplay form
return View(model);
}
What i'm looking to achieve is on registration the StoreDetails table is generated with the following input:
#Html.TextBoxFor(m => m.StoreDetails.StoreName)
If you need any further details please ask.
Thanks

Answer 1

RegisterViewModel is not a real entity i.e person that gets saved into the database by EF. All it is is a carrier object that passes the values of email and password into the real User/person object called ApplicationUser. This is a view-model and not a real model.
in your example you added StoreDetails in the RegisterViewModel which is correct. But you also need to add this in your ApplicationUser class as a property.
public class ApplicationUser {
public virtual StoreDetails StoreDetails { get; set; }
Then run your migrations.
Adding anything to the RegisterViewModel is made to pass data from the view layer in a way to safe guard the object thats going into your db.
i.e
doing this doesnt do anything because the viewmodel doesnt live in the db
public class StoreDetails
{
[Key, ForeignKey("RegisterViewModel")] //this will not work remove
public string StoreName { get; set; }
public virtual RegisterViewModel RegisterViewModel { get; set; }// remove
}

Answer 2

public Ienumerable<StoreDetails> StoreDetails { get; set; }
public int StoreDetailsId { get; set; }
In controller:
using (var db = ApplicationDbContext.Create())
{
model.StoreDetails = db.StoreDetails.ToList();
}