How to add new colum into Identity RoleClaims table (asp net core) - asp.net-core

Question

I'm trying to add a column to the identity (asp net core) RoleClaims table but I find content just to extend the roles and users classes and not to RoleClaims.
Could someone help with examples or point out content.

Answer 1

You would need to create a new class to extend the RoleClaim. Here is an example of how to do it if your key type is string:
public class ApplicationRoleClaim : IdentityRoleClaim<string>
{
public virtual ApplicationRole Role { get; set; }
}
You can add whatever new properties you want to this class then create a migration to add them as table columns.
You would also need to tell your IdentityDbContext to use this new class as well. Here is an example from the docs:
public class ApplicationDbContext
: IdentityDbContext<
ApplicationUser, ApplicationRole, string,
ApplicationUserClaim, ApplicationUserRole, ApplicationUserLogin,
ApplicationRoleClaim, ApplicationUserToken>
{
public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options)
: base(options)
{
}
}
EDIT:
With your custom ApplicationRoleClaim class, you could override OnModelCreating as well. This is an example from the docs:
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
⋮
modelBuilder.Entity<IdentityRoleClaim<string>>(b =>
{
b.ToTable("MyRoleClaims");
});
⋮
}
Reference: Identity model customization in ASP.NET Core

Answer 2

I made a demo with asp.net core 2.2 and it worked well ,try the following code , customize ApplicationRoleClaim to add other propertyies.
public class ApplicationRoleClaim: IdentityRoleClaim<string>
{
public string Description { get; set; }
}
Then use DbSet<TEntity> class which represents a collection for a given entity within the model and is the gateway to database operations against an entity to add the new column to table
public class ApplicationDbContext : IdentityDbContext
{
public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options)
: base(options)
{
}
public DbSet<ApplicationRoleClaim> ApplicationRoleClaim { get; set; }
}
Finally add-migration and update-database.