NHibernate many-to-one映射

many-to-one

数据方面,多条对一条

非主键字段与主键字段的关联,在类中实现了一对一的单向映射。在类中是单实体映射。

订单充值业务。显然,一单位可以有多个充值信息。

通过表 Deposit里面的CompanyId字段关联表Company主键Id字段。

订单信息。

    [Serializable]
    public class DepositInfo
    {
       /// <summary>
        /// 商户订单号
        /// </summary>
        public virtual string TradeNo        {get;set;}
       /// <summary>
        /// 商家Id
        /// </summary>
        public virtual int CompanyId        {get;set;} 
        public virtual Company CompanyInfo { get; set; }  
}

映射文件

<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2">
 <class name="Model.DepositInfo, Model " table="dbo.Deposit">
<id name="Id" type="Int32" unsaved-value="0">
    <column name="Id" length="4" sql-type="int" not-null="true" unique="true"/>
    <generator class="native" />
</id>
<property name="TradeNo" type="string"/>
<property name="CompanyId" column="CompanyId" type="int"  />
<many-to-one name="CompanyInfo" fetch="join" column="CompanyId" not-found="ignore"></many-to-one>
 </class>
</hibernate-mapping>

  商家信息

public class Company 
    {
    public virtual int Id {get;set;}
     /// <summary>
        /// 厂家名称
        /// </summary>
        public virtual string Name {get;set;}
}

映射文件

<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2">
  <class name="Model.Company, Model" table="Company">
    <id name="Id" column="Id" type="int" unsaved-value="0">
      <generator class="native" />
    </id>
<property name="Name" column="Name" type="string"  />
 </class>
</hibernate-mapping>

 

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