每个层次结构的单表映射错误

时间:2010-10-05 18:34:09

标签: .net nhibernate inheritance single-table-inheritance

我得到了以下映射

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" auto-import="false">
  <subclass name="Module.CRM.Models.CallRecord, Module.CRM" extends="Gate.Calls.CallRecord, Gate.SDK" discriminator-value="call_record_id">
    <property name="ContactId" column="contact_id" />
    <property name="CompanyId" column="company_id" />
  </subclass>
</hibernate-mapping>

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" auto-import="false">
  <class name="Gate.Calls.CallRecord, Gate.SDK" table="call_records" lazy="true">
    <id name="Id" column="id">
      <generator class="sequence">
        <param name="sequence">call_records_id_seq</param>
      </generator>
    </id>

    <property name="UserId" column="user_id" type="integer" />
    <property name="SiteId" column="site_id" type="integer" />
    <property name="PhoneNumber" column="phone_number" type="string" />
    <property name="CreatedAt" column="created_at" type="datetime" />
    <property name="Duration" column="duration" type="integer" />
    <property name="IsInbound" column="is_inbound" type="boolean" />
    <property name="HangupCause" column="hangup_cause" type="integer" />
    <property name="RingDuration" column="ring_duration" type="integer" />

  </class>
</hibernate-mapping>

我收到以下错误

  

找不到Module.CRM.Models.CallRecord的鉴别器。

我没有指定鉴别器吗?

修改

做了更多的研究:鉴别家不是我应该使用的。 crm_call_records中的call_record_id指向call_records中的id。映射文件应该是什么样的?

1 个答案:

答案 0 :(得分:1)

您需要在CallRecord映射中添加一个鉴别器。即

<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" auto-import="false">
  <class name="Gate.Calls.CallRecord, Gate.SDK" table="call_records" lazy="true">
    <id name="Id" column="id">
      <generator class="sequence">
        <param name="sequence">call_records_id_seq</param>
      </generator>
    </id>
    <discriminator column="Discriminator"
            not-null="true"
            type="System.String"/>
    <property name="UserId" column="user_id" type="integer" />
    <property name="SiteId" column="site_id" type="integer" />
    <property name="PhoneNumber" column="phone_number" type="string" />
    <property name="CreatedAt" column="created_at" type="datetime" />
    <property name="Duration" column="duration" type="integer" />
    <property name="IsInbound" column="is_inbound" type="boolean" />
    <property name="HangupCause" column="hangup_cause" type="integer" />
    <property name="RingDuration" column="ring_duration" type="integer" />

  </class>

以下是Ayende - NHibernate Mapping – Inheritance

的示例