Jon Galloway has an overview of the new membership features in ASP.NET MVC 4. The Internet project template moves away from the core membership providers of ASP.NET and into the world of SimpleMembershipProvider and OAuth.

There is quite a bit I could write about the new features and the code generated by the Internet project template, but for this post I just want to cover a scenario I've demonstrated in the past - seeding the roles and membership tables. If you are using Entity Framework code-first migrations it's relatively easy to add some code to the Seed method of the migrations configuration to populate the membership tables with some initial roles and users. Just remember every update-database command will call the Seed method, so you have to write the code to make sure you don't try to create duplicate data.

First, the new project template creates an MVC 4 Internet application without any provider configuration, but for the membership features to work properly during a migration, it appears you need at least some configuration. The following code makes sure the SimpleMembershipProvider and SimpleRolesProvider are in place.

<roleManager enabled="true" defaultProvider="simple">
  <providers>
    <clear/>
    <add name="simple" type="WebMatrix.WebData.SimpleRoleProvider,
                             WebMatrix.WebData"/>
  </providers>     
</roleManager>
<membership defaultProvider="simple">
  <providers>
    <clear/>
    <add name="simple" type="WebMatrix.WebData.SimpleMembershipProvider,
                             WebMatrix.WebData"/>
  </providers>
</membership>

Then inside the Seed method of the DbMigrationsConfiguration<T> derived class, you can have:

protected override void Seed(MovieDb context)
{           
    //context.Movies.AddOrUpdate(...);

    // ...

    SeedMembership();
}

private void SeedMembership()
{           
    WebSecurity.InitializeDatabaseConnection("DefaultConnection",
        "UserProfile", "UserId", "UserName", autoCreateTables: true);
 
    var roles = (SimpleRoleProvider) Roles.Provider;
    var membership = (SimpleMembershipProvider) Membership.Provider;
 
    if (!roles.RoleExists("Admin"))
    {
        roles.CreateRole("Admin");
    }
    if (membership.GetUser("sallen",false) == null)
    {
        membership.CreateUserAndAccount("sallen", "imalittleteapot");
    }
    if (!roles.GetRolesForUser("sallen").Contains("Admin"))
    {
        roles.AddUsersToRoles(new[] {"sallen"}, new[] {"admin"});
    }
}