流利的NHibernate和HasMany映射

Question

使用流利的nhibernate和HasMany有以下問題。 我已經通過Google和SO搜索類似的問題，但是我發現的任何解決方案都不能解決我的問題。

我映射了以下實體（為清楚起見，我省略了大多數屬性）：

PaymentSchedule.cs

public class PaymentSchedule
{
    public virtual BinaryId Id { get; set; }

    public virtual IList<PaymentToSchedule> Payments { get; set; }
}

PaymentToSchedule.cs

  public class PaymentToSchedule
  {
    public virtual BinaryId Id { get; set; }        

    public virtual PaymentSchedule PaymentSchedule { get; set; }
}

映射文件

PaymentScheduleMap.cs

public class PaymentScheduleMap : ClassMap<PaymentSchedule>
{
    public PaymentScheduleMap()
    {
        Table("A_Payment_Schedule");
        Id(x => x.Id, "A_Payment_Schedule_Id").CrmId();
        HasMany<PaymentToSchedule>(x => x.Payments).Table("A_Payment_To_Schedule").KeyColumns.Add("A_Payment_Schedule_Id").Fetch.Select();
    }
}

PaymentToScheduleMap.cs

public class PaymentToScheduleMap : ClassMap<PaymentToSchedule>
{
    public PaymentToScheduleMap()
    {
        Table("A_Payment_To_Schedule");
        Id(x => x.Id, "A_Payment_To_Schedule_Id").CrmId();            
        References(x => x.PaymentSchedule, "A_Payment_Schedule_Id");            
    }
}

基本上，我想在加載PaymentSchedule對象時獲取PaymentToSchedule實體的列表。 現在，要做到這一點，我必須使用以下查詢：

var paymentSchedules = dataAccess.Session.QueryOver<PaymentSchedule>().List(); 

以及每個付款時間表

 var paymentToSchedule = (from pts in dataAccess.Session.Query<PaymentToSchedule>()
                                                where pts.PaymentSchedule.Id == ps.Id).
                                                      ToList<PaymentToSchedule>();

這可以正常工作，但是在查詢PaymentSchedule時有沒有辦法獲取PaymentToSchedule實體列表？

Answer 1

var paymentSchedules = dataAccess.Session.QueryOver<PaymentSchedule>()
    .Fetch(x => x.Payments).Eager;
    .List();

// payments are already initialised, you can safly do
var allPayments = paymentSchedules.SelectMany(ps => ps.Payments).ToList();