我设置了父子关系表。在UI中,我显示了父级和子级详细信息的详细信息。用户在UI中进行更改后,我需要将其保存回数据库,但我收到以下错误:
NHibernate.ADOException被捕获
消息=“无法更新:[PlanningMaps.vo.PaRegAddresses#2] [SQL:UPDATE PaRegAddresses SET RegUserId =?,AddressCity =?,AddressCountry =?,AddressLine =?,AddressLine1 =?,AddressPostcode =?,RegUserId =?,IsBillingAddress = ?, IsShippingAddress =?WHERE RegAddressID =?]“
和innerexception是:
System.Data.SqlClient.SqlException:列名'RegUserId'在结果列列表中出现多次。
以下是映射详细信息: 的 PARENT:
<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" namespace="PlanningMaps.vo" assembly="PlanningMaps.vo">
<class name="PaRegUser, __code" table="PaRegUsers" lazy="false">
<id name="Id" type="Int64" column="RegUserId">
<generator class="identity" />
</id>
<property name="RegTradeName" column="RegTradeName" type="String" />
<property name="RegTitle" column="RegTitle" type="String" />
<property name="RegContactName" column="RegContactName" type="String" />
<property name="RegPassword" column="RegPassword" type="String" />
<property name="RegEmail" column="RegEmail" type="String" />
<property name="RegPhoneNumber" column="RegPhoneNumber" type="String" />
<bag name="PaRegAddresses" inverse="true" cascade="all-delete-orphan" lazy="false">
<key column="RegUserID" />
<one-to-many class="PaRegAddresses, App_Code" />
</bag>
</class>
</hibernate-mapping>
儿童:
<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" namespace="PlanningMaps.vo" assembly="PlanningMaps.vo">
<class name="PaRegAddresses, __code" table="PaRegAddresses" lazy="false">
<id name="Id" type="Int64" column="RegAddressID">
<generator class="identity" />
</id>
<property name="RegUserId" column="RegUserId" type="Int64" />
<property name="AddressCity" column="AddressCity" type="String" />
<property name="AddressCountry" column="AddressCountry" type="String" />
<property name="AddressLine" column="AddressLine" type="String" />
<property name="AddressLine1" column="AddressLine1" type="String" />
<property name="AddressPostcode" column="AddressPostcode" type="String" />
<many-to-one name="RegUsers" column="RegUserId" not-null="true" class="PaRegUser, App_Code" />
<property name="IsBillingAddress" column="IsBillingAddress" type="Boolean" />
<property name="IsShippingAddress" column="IsShippingAddress" type="Boolean" />
</class>
</hibernate-mapping>
和代码:
public void UpdateRegCustomer( PaRegUser regUser )
{
ITransaction tx = null;
try
{
if (!session.IsConnected)
{
session.Reconnect();
}
tx = session.BeginTransaction();
if (regUser != null)
session.Update(regUser);
tx.Commit();
}
session.Disconnect();
}
catch (Exception ex)
{
tx.Rollback();
session.Disconnect();
log.Error("UpdateRegCustomer( PaRegUser regUser ) method", ex);
throw ex;
// handle exception
}
}
请让我知道这是什么我在这里做错了,我需要做些什么改变才能更新父记录和子记录。
谢谢你的帮助。
答案 0 :(得分:2)
在孩子中你有:
<property name="RegUserId" column="RegUserId" type="Int64" />
和
<many-to-one name="RegUsers" column="RegUserId" not-null="true" class="PaRegUser, App_Code" />
两者都引用了RegUsersId列。
我认为您必须将第一个更改为insert =“false”并更新=“false”:
<property name="RegUserId" column="RegUserId" type="Int64" insert="false" update="false" />
但完全可能是其他东西。
一般来说,虽然您可以删除该属性并执行:
PaRegAddresses.RegUsers.Id