How to visit users and roles with the first code migration using OWIN 2 ID with MVC5

Question

I am trying to separate users and roles using First First Migration and OWIN Identity 2 with MVC5. I had this before upgrading to 2.0.

First, the following works when using the first codeless migration example for DropCreateDatabaseIfModelChanges

Class ApplicationDbInitializer from IdentityConfig.cs file:

public class ApplicationDbInitializer : DropCreateDatabaseIfModelChanges<ApplicationDbContext> 
{
    protected override void Seed(ApplicationDbContext context) 
    {
        InitializeIdentityForEF(context);
        base.Seed(context);
    }


    public static void InitializeIdentityForEF(ApplicationDbContext db) 
    {
        var userManager = HttpContext
            .Current.GetOwinContext()
            .GetUserManager<ApplicationUserManager>();

        var roleManager = HttpContext.Current
            .GetOwinContext()
            .Get<ApplicationRoleManager>();

        const string name = "[e-mail]";
        const string password = "Admin@123456";
        const string roleName = "Admin";

        //Create Role Admin if it does not exist
        var role = roleManager.FindByName(roleName);

        if (role == null) 
        {
            role = new IdentityRole(roleName);
            var roleresult = roleManager.Create(role);
        }

        var user = userManager.FindByName(name);

        if (user == null) 
        {
            user = new ApplicationUser { UserName = name, Email = name };
            var result = userManager.Create(user, password);
            result = userManager.SetLockoutEnabled(user.Id, false);
        }

        // Add user admin to Role Admin if not already added
        var rolesForUser = userManager.GetRoles(user.Id);

        if (!rolesForUser.Contains(role.Name)) 
        {
            var result = userManager.AddToRole(user.Id, role.Name);
        }
    }
}

I translated the InitializeIdentityForEF code into my configuration.cs file and successfully added these two links and project assemblies.

using Microsoft.AspNet.Identity.Owin;
using Microsoft.AspNet.Identity;

But when starting the update database from the package manager console, the following error appears:

System.NullReferenceException: ​​ .   System.Web.HttpContextExtensions.GetOwinEnvironment( HttpContext)   System.Web.HttpContextExtensions.GetOwinContext( HttpContext)

OdeToCode OWIN: 51 : raw.githubusercontent.com/OdeToCode/MVC5_Samples/master/... , Owin Seed, Seed . Owin , Seed . - OdeToCode 13 15:00

, :

4 "Foo.Models. ApplicationUser" "TUser" "Microsoft.AspNet.Identity.EntityFramework.UserStore". "Foo.Models.ApplicationUser" "Microsoft.AspNet.Identity.EntityFramework.IdentityUser". c:\foo\Migrations\Configuration.cs 86 43

protected override void Seed(Repository.DataContext.IdentityDb context)
    var roleStore = new RoleStore<IdentityRole>(context);
    var roleManager = new RoleManager<IdentityRole>(roleStore);
    var userStore = new UserStore<ApplicationUser>(context);
    var userManager = new UserManager<ApplicationUser>(userStore);               
    var user = new ApplicationUser { UserName = "sallen" };

    userManager.Create(user, "password");                    
    roleManager.Create(new IdentityRole { Name = "admin" });
    userManager.AddToRole(user.Id, "admin");
}

Answer 1

, ...

var userStore = new UserStore<ApplicationUser>(context);
var userManager = new UserManager<ApplicationUser>(userStore);

var userManager = new ApplicationUserManager ( UserStore ());

.

Answer 2

:

http://www.codeproject.com/Articles/674760/Code-First-Migration-and-Extending-Identity-Accoun

Seed:

        var userManager = HttpContext
            .Current.GetOwinContext()
            .GetUserManager<ApplicationUserManager>();

        var roleManager = HttpContext.Current
            .GetOwinContext()
            .Get<ApplicationRoleManager>();

:

        var conText = new ApplicationDbContext();
        var userStore = new UserStore<ApplicationUser>(conText);
        var userManager = new UserManager<ApplicationUser>(userStore);

        var roleStore = new RoleStore<IdentityRole>(conText);
        var roleManager = new RoleManager<IdentityRole>(roleStore);