Album-mapping.xml

<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" assembly="Mvc Music Store" namespace="MvcMusicStore.Models">
  <class name="Album">
    <id name="AlbumId">
      <generator class="identity" />
    </id>

    <many-to-one name="Genre" column="GenreId" />
    <many-to-one name="Artist" column="ArtistId" />
    <property name="Title" />
    <property name="Price" />
    <property name="AlbumArtUrl" />

    <bag name="OrderDetails" cascade="all">
      <key column="AlbumId" />
      <one-to-many class="OrderDetail"/>
    </bag>
  </class>
</hibernate-mapping>