Map classes that inherit Id from another Entity - EF Core class

Question

I need to map the Person and Branch classes with a one-to-one relationship, where a person will be just a branch and a branch will be tied to only one person, (A PK in Person Id and PK/FK in Affiliate Id). Entity Framework Core is getting confused and putting PK in Affiliate Id and FK in Person. I created a class called Entity that contains an Id property for everyone to inherit from. I think this is causing the problem.

public abstract class Entity
    {
        public Guid Id { get; protected set; }

        public override bool Equals(object obj)
        {
            var compareTo = obj as Entity;

            if (ReferenceEquals(this, compareTo)) return true;
            if (ReferenceEquals(null, compareTo)) return false;

            return Id.Equals(compareTo.Id);
        }

        public static bool operator ==(Entity a, Entity b)
        {
            if (ReferenceEquals(a, null) && ReferenceEquals(b, null))
                return true;

            if (ReferenceEquals(a, null) || ReferenceEquals(b, null))
                return false;

            return a.Equals(b);
        }

        public static bool operator !=(Entity a, Entity b)
        {
            return !(a == b);
        }

        public override int GetHashCode()
        {
            return (GetType().GetHashCode() * 907) + Id.GetHashCode();
        }

        public override string ToString()
        {
            return GetType().Name + " [Id=" + Id + "]";
        }
    }

 public class Pessoa : Entity
    {
       
        public virtual Filial Filial { get; private set; }

        protected Pessoa() { }

        public Pessoa( Guid id, PessoaNatureza pessoaNatureza)
        {
            Id = id;
            PessoaNatureza = pessoaNatureza;
        }
    }

public class Filial : Entity    {
       
        public virtual Pessoa Pessoa { get; set; }

        protected Filial() { }

        public Filial(Guid id)
        {
            Id = id;
        }
    }

//Mappings

 public class FilialMap : IEntityTypeConfiguration<Filial>
    {
        public void Configure(EntityTypeBuilder<Filial> builder)
        {
            builder.ToTable("tblFilial");

            builder.HasKey(f => f.Id);

           builder
                .HasOne(u => u.Pessoa)
                .WithOne(p => p.Filial)
                .HasConstraintName("FK_Pessoa_Filial")
                .IsRequired();

            builder.Property(f => f.Id)
                .ValueGeneratedNever()
                .HasColumnName("PessoaId")
                .IsRequired();

        }
    }

public class PessoaMap : IEntityTypeConfiguration<Pessoa>
    {
        public void Configure(EntityTypeBuilder<Pessoa> builder)
        {
            builder.ToTable("tblPessoa");

            builder.HasKey(p => p.Id);

            builder.Property(p => p.Id)
                .HasColumnName("PessoaId")
                .IsRequired()
                .ValueGeneratedNever();

            builder.Property(p => p.PessoaNatureza)
               .HasColumnName("PessoaNaturezaId")
               .IsRequired();


        }
    }

Answer 1

You need to map in the People configuration to create it correctly:

...
builder.HasOne(u => u.Filial)
    .WithOne(p => p.Pessoa)
    .HasForeignKey<Filial>(b => b.FilialId); 
...