EF Adding an additional FK? - entity-framework

Question

I have the following 2 entities:
public class Team
{
public int Id { get; set; }
public string Name { get; set; }
public virtual ICollection<Fixture> Fixtures { get; set; }
}
public class Fixture
{
public int Id { get; set; }
public Result Result { get; set; }
public int HomeTeamId { get; set; }
public int AwayTeamId { get; set; }
public virtual Team HomeTeam { get; set; }
public virtual Team AwayTeam { get; set; }
}
I have then mapped it like so:
public class FixtureMap : EntityTypeConfiguration<Fixture>
{
public FixtureMap()
{
HasRequired(x => x.AwayTeam).WithMany().HasForeignKey(x => x.AwayTeamId);
HasRequired(x => x.HomeTeam).WithMany().HasForeignKey(x => x.HomeTeamId);
}
}
But when I add a migration, EF is creating an additional FK and column to my Fixture table and I've no idea why? How can I tell it not too?
As you can see its added a column called Team_Id and created an FK from it even tho I have specified the relationship in the mapping?

Answer 1

use this code:
public class Team
{
public int Id { get; set; }
public string Name { get; set; }
[InverseProperty("HomeTeam")]
public virtual ICollection<Fixture> HomeFixtures { get; set; }
[InverseProperty("AwayTeam")]
public virtual ICollection<Fixture> AwayFixtures { get; set; }
}
public class Fixture
{
public int Id { get; set; }
public Result Result { get; set; }
public int HomeTeamId { get; set; }
public int AwayTeamId { get; set; }
[InverseProperty("HomeFixtures")]
[ForeignKey("HomeTeamId ")]
public virtual Team HomeTeam { get; set; }
[InverseProperty("AwayFixtures")]
[ForeignKey("AwayTeamId")]
public virtual Team AwayTeam { get; set; }
}
And :
public class FixtureMap : EntityTypeConfiguration<Fixture>
{
public FixtureMap()
{
HasRequired(x => x.AwayTeam).WithMany().HasForeignKey(x => x.AwayTeamId).willCascadeOnDelete(false);
HasRequired(x => x.HomeTeam).WithMany().HasForeignKey(x => x.HomeTeamId);
}
}