How do I configure Entity Framework using fluent configuration to behave the same way that I would do this with attributes:
public class Product
{
public int? ParentId { get; set; }
[ForeignKey("ParentId")]
public virtual Product Parent { get; set; }
}
Supposing that you want to create a self referencing entity, I assume that you have a Product
class like this:
public class Product
{
public int Id { get; set; }
public int? ParentId { get; set; }
public virtual Product Parent { get; set; }
}
In the context, you need to implement the OnModelCreating
method in order to configure the self reference.
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
modelBuilder.Entity<Product>().
HasOptional(e => e.Parent).
WithMany().
HasForeignKey(m => m.ParentId);
}