这是有DDD经验的人的问题。如果我们有一个子实体，它有两个属性，但都是父项的FK，那么设计子实体的最佳方法是什么？例如，我们有用户实体，而你有公司实体，它有两个属性，声明ManagerId和DirectorId都应该是用户实体的ID的FK。

这个代码是好的实践吗？

public class User: IAggregateRoot 
{
      public int Id {get; private set;}
      public string Name {get;private set;}
      private readonly List<Company> _directorCompanies = new List<Company>();
      public List<Company> DirectorCompanies => _directorCompanies.AsReadOnly();
      private readonly List<Company> _managerCompanies = new List<Company>();
      public List<Company> ManagerCompanies => _managerCompanies.AsReadOnly();
      public User(string name)
      {
        Name = name
      }
} 
public class Company: IAggregateRoot
{
  public int Id {get;private set;}
  public string Name {get;private set;}
  public int DirectorId {get;private set;}
  public int? ManagerId {get;private set;}
  public User Director {get;private set;}
  public User Manager {get;private set;}
  public Company(string name, int directorId, int? manangerid)
  {
    Name = name;
    DirectorId = directorId;
    ManagerId = managerId;
  }
}

有了这个解决方案，以后我可以为特定的公司命名，如果有的话，谁是董事，谁是经理。否则，如果我这样管理：

 public class User: IAggregateRoot 
    {
          public int Id {get; private set;}
          public string Name {get;private set;}
          public User(string name)
          {
            Name = name
          }
    } 
    public class Company: IAggregateRoot
    {
      public int Id {get;private set;}
      public string Name {get;private set;}
      public int DirectorId {get;private set;}
      public int? ManagerId {get;private set;}

      public Company(string name, int directorId, int? manangerid)
      {
        Name = name;
        DirectorId = directorId;
        ManagerId = managerId;
      }
    }

如何在存储库中使用include获取名称？我关心的是什么是正确的方式，好的方式，来实施这种情况，在需要的时候我可以获得董事或经理的信息。当做