One to zero-or-one with HasForeignKey

Question

I have two models:

public class Person
{
    public virtual int Id { get; set; }
    public virtual Employee Employee { get; set; } // optional
}

public cla         


        

Answer 1

There's actually a better way to do this:

HasKey(e => e.PersonId);

HasRequired(e => e.Person)
    .WithOptional(p => p.Employee);

Note that you no longer need the Employee.Id property with this approach, as it was superfluous in terms of a 1 to 0 or 1 relationship in the first place.