这是我的订单和 orderItem 类:
public class Order : AggregateRootBase<OrderId>
{
public string CustomerName { get; private set; }
public IList<OrderItem> Items { get; set; }
public DateTime RegisterDatetime { get; private set; }
}
public class OrderItem : ValueObjectBase
{
public long Id { get; private set; }
public long OrderId { get; set; }
public long Number { get; private set; }
public long Goods { get; private set; }
public double UnitPrice { get; private set; }
}
我使用 nhibernate 作为我的 orm。在映射此代码时,我希望订单位于 Orders 表中,而 orderItem 将存储在名为 OrderItems 的不同表中。这是我的映射:
public class OrderMapping : ClassMapping<Order>
{
public OrderMapping()
{
Table("Orders");
Lazy(false);
ComponentAsId(a => a.EntityId, a => { a.Property(x => x.DbId, x => x.Column("Id")); });
Property(a=>a.CustomerName);
Property(a => a.RegisterDatetime);
Bag(a => a.Items,
mapper => {
mapper.Inverse(true);
mapper.Cascade(Cascade.None);
mapper.Table("OrderItems");
mapper.Key(k => k.Column(columnMapper => columnMapper.Name("OrderId")));
},
relation => { relation.OneToMany(); });
}
}
public class OrderItemMapping : ClassMapping<OrderItem>
{
public OrderItemMapping()
{
Lazy(false);
Id(a => a.Id);
Table("OrderItems");
Property(a => a.OrderId);
Property(a => a.Number);
Property(a => a.Goods);
Property(a => a.UnitPrice);
}
}
我也在数据库中创建了表,但是当我插入带有 3 个 orderItems 的订单时,它会插入订单但不插入 orderitems 感谢您的帮助
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