我有一個Order類包含OrderItems。當我保存Order類時,數據庫被填充Order信息,但是沒有一個OrderItems被保存到它們各自的表中。這裏的次序來映射的樣子:NHibernate不保存對象的項目集合
<class name="Order" table="Orders">
<id name="OrderID" column="OrderID" type="Int64" unsaved-value="0">
<generator class="identity"/>
</id>
<list name="OrderItems" table="OrderItems" inverse="true" >
<key column="OrderID"/>
<index column="OrderItemID" />
<one-to-many class="OrderItem" />
</list>
下面是OrderItem的映射是什麼樣子:
<class name="OrderItem" table="OrderItems">
<id name="OrderItemID" column="OrderItemID" type="Int64" unsaved-value="0">
<generator class="identity"/>
</id>
<property name="OrderID" />
<many-to-one name="Order" class="Order" column="OrderID" not-null="true" />
</class>
下面的代碼保存訂單的樣子:
if (o.CreatedBy == null || o.CreatedBy == string.Empty) {
o.CreatedBy = userID.ToString();
foreach (OrderItem oi in obj.OrderItems) {
oi.CreatedBy = userID.ToString();
oi.ModifiedBy = userID.ToString();
oi.ModifiedOn = DateTime.Now;
}
}
o.ModifiedBy = userID.ToString();
o.ModifiedOn = DateTime.Now;
ISession session = NHibernateHelper.GetCurrentSession();
ITransaction tx = session.BeginTransaction();
session.Save(o);
tx.Commit();
NHibernateHelper.CloseSession();
任何想法爲什麼孩子OrderItems沒有被保存?
你能張貼位你的代碼來展示你的對象是如何創建的建立關係,然後保存?你的映射看起來很好,所以我猜測它是代碼相關的。 – 2009-04-17 14:30:56