当我保存新报告时,NHibernate 插入报告,忽略发布并尝试插入 UserPublication。然而,SQL 然后抱怨违反 FK 约束。就像 NHibernate 不认为出版物是新的,即使该行在数据库中不存在。
将实体关系想象为:一个报告可以有很多出版物(出版物属于一个报告)一个出版物可以有很多用户出版物(用户出版物属于一个出版物)
任何想法我做错了什么?提前致谢。
这是映射:
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" auto-import="true">
<class name="Model.Report, Model" table="Report" lazy="true">
<id name="Id" access="property" column="ReportID">
<generator class="assigned"></generator>
</id>
<property name="DeleteUnread" access="property" />
<property name="Description" access="property" />
<property name="Name" access="property" />
<bag name="Publications" access="property" lazy="true" cascade="all-delete-orphan">
<key column="ReportID"/>
<one-to-many class="Model.Publication, Model"/>
</bag>
</class>
</hibernate-mapping>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" auto-import="true">
<class name="Model.Publication, Model" table="Publication" lazy="true">
<id name="Id" access="property" column="PublicationID">
<generator class="assigned"></generator>
</id>
<property name="CreatedOn" access="property" />
<property name="FileExtension" access="property" />
<property name="IsDownloaded" access="property" />
<property name="ToBeDownloaded" access="property" />
<property name="Name" access="property"/>
<bag name="UserPublications" access="property" lazy="true" cascade="all-delete-orphan">
<key column="PublicationID"></key>
<one-to-many class="Model.UserPublication, Model" />
</bag>
<many-to-one name="Report" class="Model.Report, Model" lazy="false" column="ReportID" not-null="true" cascade="none">
</many-to-one>
</class>
</hibernate-mapping>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" auto-import="true">
<class name="Model.UserPublication, Model" table="UserPublication" lazy="true">
<id name="Id" access="property" column="UserPublicationID">
<generator class="native"></generator>
</id>
<property name="IsFlaggedForDeletion" access="property" column="IsFlaggedForDeletion" />
<property name="HasBeenRead" access="property" column="HasBeenRead" />
<property name="DateReceived" access="property" column="DateReceived" />
<property name="MustRead" access="property" column="MustRead" />
<property name="ShowToolbar" access="property" column="ShowToolbar" />
<property name="MaxAge" access="property" column="MaxAge" />
<property name="FeedId" access="property" column="FeedId" />
<property name="CanEdit" access="property" column="CanEdit" />
<many-to-one name="User" access="property" column="ClientUserID" class="Model.ClientUser, Model" not-null="true" cascade="none">
</many-to-one>
<many-to-one name="Publication" access="property" class="Model.Publication, Model" column="PublicationID" not-null="true" cascade="none">
</many-to-one>
</class>