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Entity Framework 4.1, Table Per Type Inheritance

public abstract class Person

  {

 

    public int ID { get; set; }

 

    public string Name { get; set; }

 

    public string Email { get; set; }

  }

 

  public class Employee : Person

  {

 

    public string Number { get; set; }

 

    public System.DateTime HireDate { get; set; }

  }

 

  public class User : Person

  {

 

    public string Password { get; set; }

 

    public bool Active { get; set; }

  }

 

  public class CfTestContext : DbContext

  {

 

    public DbSet<Employee> Employees { get; set; }

 

    public DbSet<User> Users { get; set; }

 

    public DbSet<Person> People { get; set; }

 

 

    protected override void OnModelCreating(DbModelBuilder modelBuilder)

    {

 

      modelBuilder.Conventions.Remove<IncludeMetadataConvention>();

 

      modelBuilder.Entity<Person>().ToTable("People");

 

      modelBuilder.Entity<Employee>().ToTable("Employees");

 

      modelBuilder.Entity<User>().ToTable("Users");

    }

  }

 

  public class CreateCfTestDatabase : DropCreateDatabaseAlways<CfTestContext>

  {

 

    protected override void Seed(CfTestContext context)

    {

 

      // Abraham Lincoln hired as an Employee on February 12th.

 

      // Abraham doesn't need access as a User because he doesn't use the Purchasing application.

 

      context.Employees.Add(new Employee { Name = "Abraham Lincoln", Email = "abraham@microsoft.com", Number = "107124", HireDate = System.DateTime.Parse("2/12/2000") });

 

      // George Washington added as a User on July 4th.

 

      // George is a consultant, so he will never become an Employee.

 

      context.Users.Add(new User { Name = "George Washington", Email = "george@microsoft.com", Password = "xT76#a2", Active = true });

 

      context.SaveChanges();

 

      // Make Abraham Lincoln a User on September 29th.

 

      // Abraham received training and now needs to use the Purchasing application

 

      Employee employee = context.Employees.Where(t => t.Name == "Abraham Lincoln").FirstOrDefault();

 

      context.Users.Add(new User { Password = "C1x$av38", Active = true,  ID = employee.ID });  // this does not produce the desired results.

 

      context.SaveChanges();

 

      base.Seed(context);

    }

  }