asp.net core identity Multiple users from BaseApplicationUser

Question

I am using ASP.NET Core 2.2 Identity for my user management system. I need to have several types of users ... for example, warehouse user and application user, which I create a base class that inherits from identity user class => IdentityUser<long>

public class BaseApplicationUser : IdentityUser<long>
{
    public string FirstName { set; get; }
    public string LastName { set; get; }
    ...
}

and warehouse user and store user inherit from BaseApplicationUser to create different users.

public class ApplicationUser : BaseApplicationUser
{
}

I want to have just one table for all of them => AspNetUsers on OnModelCreating added this code :

protected override void OnModelCreating(ModelBuilder builder)
{
    builder.Entity<ApplicationUser>();
    builder.Entity<WarehouseApplicationUser>();
}

and in DbSets in Context :

public DbSet<ApplicationRole> ApplicationRole { get; set; }
public DbSet<ApplicationUser> ApplicationUsers { get; set; }
public DbSet<WarehouseApplicationRole> WarehouseApplicationRole { get; set; }
public DbSet<WarehouseApplicationUser> WarehouseApplicationUsers { get; set; }

I need to create separate role classes for the users, like ApplicationRole and WarehouseApplicationUsers.

Whats is the problem?

1. How to create different users in asp.net core Identity? ( best way )
2. Another problem is that when I add a field to ApplicationUser, that field is successfully added to AspNetUsers, but when I add a field to WarehouseApplicationUsers, EF Core adds new tables named WarehouseApplicationUsers and WarehouseApplicationRole and WarehouseApplicationUserRole and then adds a field to the WarehouseApplicationUsers table... what is this!

And finally, how can I inherit and build a hierarchy of different users? Thanks a lot

Answer 1

Problem 1: How to create different users in asp.net core Identity ?

ASP.NET Core provides a built-in method:AddIdentityCore<TUser>.

You can use it like this: services.AddIdentityCore<ApplicationUser>();

More details you can see this thread.

Problem 2:

Here is an example,you can compare to your code:

BaseApplicationUser:

 public class BaseApplicationUser: IdentityUser
{
    public string FirstName { set; get; }
    public string LastName { set; get; }
}

ApplicationUser:

 public class ApplicationUser : BaseApplicationUser
{
    public string Year { get; set; }
}

WarehouseApplicationUser:

public class WarehouseApplicationUser : BaseApplicationUser
{
     public string Age { get; set; }
}

ApplicationDbContext:

public class ApplicationDbContext : IdentityDbContext<BaseApplicationUser>
{
    public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options)
        : base(options)
    {
    }
  
    public DbSet<ApplicationUser> ApplicationUsers { get; set; }
   
    public DbSet<WarehouseApplicationUser> WarehouseApplicationUsers { get; set; }
}

Migration result: