流利的NHibernate自動映射參考密鑰

Question

我最近通過NuGet將項目從1.3.0.717和3.2.0.4000更新到了FNH 1.3.0.727和NH 3.3.0.4000。 使用自動映射，更新之前生成的XML如下所示：

  <class xmlns="urn:nhibernate-mapping-2.2" name="APP.Domain.Module, APP.Domain, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" table="Module">
    <id name="Id" type="System.Guid, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
      <column name="ModuleId" />
      <generator class="guid.comb" />
    </id>
    <many-to-one class="APP.Domain.Product, APP.Domain, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" name="Product">
      <column name="ProductId" />
    </many-to-one>
    <joined-subclass name="APP.Domain.Audit.Trail, APP.Domain, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null">
      <key>
        <column name="TrailId" />
      </key>
      <bag cascade="all" inverse="true" lazy="true" name="Arguments">
        <key>
          <column name="TrailId" />
        </key>
        <one-to-many class="APP.Domain.Audit.Argument, APP.Domain, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" />
      </bag>
      <property name="Action" type="System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
        <column name="Action" />
      </property>
      <property name="Date" type="System.DateTime, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
        <column name="Date" />
      </property>
      <property name="Workflow" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
        <column name="Workflow" />
      </property>
      <property name="Identity" type="System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
        <column name="[Identity]" />
      </property>
    </joined-subclass>
  </class>

和更新后：

  <class xmlns="urn:nhibernate-mapping-2.2" name="APP.Domain.Module, APP.Domain, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" table="`Module`">
    <id name="Id" type="System.Guid, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
      <column name="ModuleId" />
      <generator class="guid.comb" />
    </id>
    <many-to-one class="APP.Domain.Product, APP.Domain, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" name="Product">
      <column name="ProductId" />
    </many-to-one>
    <joined-subclass name="APP.Domain.Audit.Trail, APP.Domain, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null">
      <key>
        <column name="TrailId" />
        <column name="ModuleId" />
      </key>
      <bag cascade="all" inverse="true" lazy="true" name="Arguments">
        <key>
          <column name="TrailId" />
          <column name="TrailId" />
        </key>
        <one-to-many class="APP.Domain.Audit.Argument, APP.Domain, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" />
      </bag>
      <property name="Name" type="System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
        <column name="Name" />
      </property>
      <property name="Date" type="System.DateTime, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
        <column name="Date" />
      </property>
      <property name="Workflow" type="System.Boolean, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
        <column name="Workflow" />
      </property>
      <property name="Identity" type="System.String, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089">
        <column name="[Identity]" />
      </property>
    </joined-subclass>
  </class>

我的模型中沒有組合鍵，一切正常，現在我開始感到異常"Foreign key (FK4B9386BFF4D27734:Argument [TrailId])) must have same number of columns as the referenced primary key (Trail [TrailId, ModuleId])" 。

我是否缺少新版本的內容？

Answer 1

問題在於約定和替代的組合。 以前的版本在每種情況下（外部，聯合，hasmany，mantomany等）均會正確覆蓋鍵列，但現在正在添加它們。 蟲子？

Answer 2

使用IReferenceConvention代替在ForeignKeyconvention類中重寫GetKeyName可以解決此問題。