Custom UserStore in Asp .Net 5 beta 7

Question

I am trying to implement a custom UserStore in Asp .Net 5 beta 7 based on the idea presented over here.

Here is the code for my custom user store:

public class ApplicationUserStore : UserStore<ApplicationUser>
{
    public ApplicationUserStore(DbContext context)
        : base(context)
    {
    }


    public async override Task<ApplicationUser> FindByIdAsync(string userId)
    {
        var user = await base.FindByIdAsync(userId);
        this.Context.Entry(user).Reference(u => u.Subject).Load();
        return user;
    }
}

I am encountering two issues with this code.

1. No method FindByIdAsync to override in the base class
2. Inside FindByIdAsync, the method Reference is not found

I am also not sure how I would go about configuring the custom user store once I get it to compile.

UPDATE:

The first issue I have solved by changing the definition of the FindByIdAsync override to the following:

public async override Task<ApplicationUser> FindByIdAsync(string userId, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken))

The second issue is still a problem. How do I specify in EF7 that I wish to explicitly load the reference property Subject of my ApplicationUser entity? In EF6 the following is defined in the namespace System.Data.EntityFramework.Infrastructure:

public DbReferenceEntry<TEntity, TProperty> Reference<TProperty>(Expression<Func<TEntity, TProperty>> navigationProperty) where TProperty : class;

Where is this extension method defined in EF7? Or is there a new method for explicitly loading references?

Answer 1

That question you are referring to is very old and a lot has changed in Identity since then.

I can tell you I have implemented UserStore in my project without using entity framework and my class is declared like this:

public sealed class UserStore<TUser> :
    IUserStore<TUser>,
    IUserPasswordStore<TUser>,
    IUserEmailStore<TUser>,
    IUserLoginStore<TUser>,
    IUserRoleStore<TUser>,
    IUserClaimStore<TUser>,
    IUserPhoneNumberStore<TUser>,
    IUserLockoutStore<TUser>,
    IUserTwoFactorStore<TUser>
   where TUser : SiteUser
{
.. implementation
}

where SiteUser is my own custom class

you may also find this question helpful as it shows how I plugged in my custom userstore in DI

looks like you do want to use EF but the principals of how to declare and plug in a custom userstore should be the same with or without a dependency on EF