使用nHibernate中的CreateCriteria向联接添加限制

初学者问题我敢肯定：

我试图在两个表之间进行连接，并同时限制结果，如下所示：

var bookings = session.CreateCriteria<Booking>("p")
                       .CreateCriteria("p.BookingLocations", JoinType.InnerJoin)
                       .Add(Restrictions.Eq("p.BookingLocations.locationID", locationId))
                       .SetMaxResults(30)
                       .List<Booking>();

…但毫无疑问，这是行不通的；）

课程

public class Booking
{
    public virtual int Id { get; set; }
    public virtual Int32 bookingID { get; set; }
    public virtual Int32 bookingAdminID { get; set; 
}

public class BookingLocation
{
    public virtual int Id { get; set; }
    public virtual Int32 bookingID { get; set; }
    public virtual Int32 locationID { get; set; } 
}

 public BookingMap()
 {
    Table("Bookings");

    Id(x => x.Id).Column("ID");
    Map(x => x.bookingID).Column("BookingID");
    Map(x => x.bookingAdminID).Column("BookingAdminID");
 }

public class BookingLocation
{
    public virtual int Id { get; set; }
    public virtual Int32 bookingID { get; set; }
    public virtual Int32 locationID { get; set; } 
 }

映射

public class Booking
{
    public virtual int Id { get; set; }
    public virtual Int32 bookingID { get; set; }
    public virtual Int32 bookingAdminID { get; set; 
}

public class BookingLocation
{
    public virtual int Id { get; set; }
    public virtual Int32 bookingID { get; set; }
    public virtual Int32 locationID { get; set; } 
}

 public BookingMap()
 {
    Table("Bookings");

    Id(x => x.Id).Column("ID");
    Map(x => x.bookingID).Column("BookingID");
    Map(x => x.bookingAdminID).Column("BookingAdminID");
 }

public class BookingLocation
{
    public virtual int Id { get; set; }
    public virtual Int32 bookingID { get; set; }
    public virtual Int32 locationID { get; set; } 
 }

---

子标准定义了一个新的范围，即根于BookingLocation的范围。您只需使用

locationID

：

session.CreateCriteria<Booking>("p")
       .CreateCriteria("p.BookingLocations", JoinType.InnerJoin)
       .Add(Restrictions.Eq("locationID", locationId))

session.CreateCriteria（“p”）
.CreateCriteria（“p.BookingLocations”，JoinType.InnerJoin）
.Add（Restrictions.Eq（“locationID”，locationID））