How to merge DbContext with IdentityDbContext

Question

I am attempting to get away from code-first migrations.

The problem is that AspNetUsers is extending IdentityUser. As a result, when I try to use a DbContext then I get the following errors.

• EntityType 'IdentityUserLogin' has no key defined. Define the key for this EntityType.
• EntityType 'IdentityUserRole' has no key defined. Define the key for this EntityType.

I want to use AspNetUsers for two purposes:

1. Identity management.
2. Querying users from the database.

Is it possible to go this route without having to use IdentityDbContext?

public class MyEntities : DbContext
{
     public DbSet<AspNetUsers> AspNetUsers { get; set; }
}

Answer 1

you don't need to add

public DbSet<AspNetUsers> AspNetUsers { get; set; }

inherit your context from IdentityDbContext to have only one context

public class MyEntities : IdentityDbContext<AspNetUsers>

also don't forget to set up UserManager to use your MyEntities context with AspNetUsers

Answer 2

You could avoid using the IdentityDbContext but you need to setup the mapping yourself in the OnModelCreating method within your DbContext class.

However, if you are using the SignInManager etc.. I recommend you use the IdentityDbContext. You are not constraint to use Code-First Migrations.

Answer 3

Identity context inherits from DBContext. Hence as long as your own db context inherits from identity context, it should be enough. Something like following :-

public class MyDbContext : IdentityContext {}