我有以下地图:

<!-- WidgetConfiguration -->
<class name="MyProject.WidgetConfiguration, MyProject" table="WidgetConfigurations">
  <id name="Id" column="Id" type="Int64">
    <generator class="native" />
  </id>

  <property name="Name" column="ConfigurationName" />

  <map name="Widgets" table="WidgetConfigurationPositions" cascade="all" lazy="false" fetch="select" inverse="true">
    <key column="WidgetConfigurationId" />
    <index column="TargetId" type="string" />
    <one-to-many class="MyProject.WidgetPlacement" />
  </map>
</class>
<!-- End WidgetConfiguration -->

<class name="MyProject.WidgetPlacement, MyProject" table="WidgetConfigurationPositions">
  <id name="Id" column="Id" type="Int64">
    <generator class="native" />
  </id>

  <many-to-one name="Widget" class="MyProject.Widget, MyProject" column="WidgetId" lazy="false" />
  <property name="Target" column="TargetId" not-null="true" />

  <map name="Options" table="PlacedWidgetOptions" cascade="all" lazy="false" fetch="select">
    <key column="WidgetConfigurationPositionId"/>
    <index column="OptionName" type="string" />
    <element column="OptionValue" type="string" />
  </map>
</class>

而且,我有以下法典:

public override void Update(WidgetConfiguration obj)
{
 using (var session = GetSession())
 {
  var tx = session.BeginTransaction();
  session.Update(obj);
  tx.Commit();

  //session.Evict(obj);
 }
}

我可以拯救一个仅靠丹迪的植被结构,但试图乌普罗维登一个植被结构,NHibernate实际上做一个插入! 这里是我的国家自由简介会。

begin transaction with isolation level: Unspecified

INSERT INTO WidgetConfigurations
           (ConfigurationName)
VALUES     ( dashboard  /* @p0 */)
select SCOPE_IDENTITY()

INSERT INTO WidgetConfigurationPositions
           (WidgetId,
            TargetId)
VALUES     (1 /* @p0 */,
             row1-column1  /* @p1 */)
select SCOPE_IDENTITY()

UPDATE WidgetConfigurationPositions
SET    WidgetId = 1 /* @p0 */,
       TargetId =  row1-column2  /* @p1 */
WHERE  Id = 356 /* @p2 */

commit transaction

我有no的想法,这就是为什么会发生这种情况,谷歌也没有多大帮助。 没有人有什么想法?