Hi Folks
I have a problem where I am getting the below error
NHibernate.PropertyValueException: not-null property references a null
or transient valueBlog.Core.Model.Entities.Account.User.
I have a User object which has an Account property, and have a uni
directional association between the objects. I have my mapping and
classes below and was wondering if someone could point me in the
direction of where I'm going wrong
classes-
public class User : BaseEntity
{
public virtual string Forename { get; set; }
public virtual string Surname { get; set; }
public virtual Account Account { get; protected set; }
public virtual void SetAccount(Account account)
{
this.Account = account;
}
}
public class Account : BaseEntity
{
public virtual string Username { get; set; }
public virtual string Password { get; set; }
public virtual UserSecurityLevel SecurityLevel { get; set; }
public virtual User User { get; protected set; }
public virtual void SetUser(User user)
{
this.User = user;
}
}
mappings-
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" auto-
import="true"
namespace="Blog.Core.Model.Entities"
assembly="Blog.Core" default-lazy="false">
<class name="User" table="Users">
<id name="Id" type="Int32">
<generator class="native" />
</id>
<version name="Version" type="Int32" unsaved-value="-1"/>
<property name='Active' />
<property name="Forename" type="String" column="Forename"/>
<property name="Surname" type="String" column="Surname"/>
<!-- Relationship with Account-->
<join table="UsersAccounts" optional="true">
<key>
<column name="UserId" unique="true" />
</key>
<many-to-one name="Account" column="AccountId"
not-null="true"
unique="true" cascade="all-delete-orphan" />
</join>
</class>
</hibernate-mapping>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" auto-
import="true"
namespace="Blog.Core.Model.Entities"
assembly="Blog.Core" default-lazy="false">
<class name="Account" table="Accounts">
<id name="Id" type="Int32">
<generator class="native" />
</id>
<version name="Version" type="Int32" unsaved-value="-1"/>
<property name='Active' />
<property name="Username" type="String" column="Username"/>
<property name="Password" type="String" column="Password"/>
<property name="SecurityLevel" column="SecurityLevel"/>
<!-- Relationship with User -->
<join table="UsersAccounts" inverse="true" optional="false">
<key>
<column name="AccountId" unique="true" />
</key>
<many-to-one name="User" column="UserId" not-null="true"
unique="true" />
</join>
</class>
</hibernate-mapping>
I have a table called Users, Accounts, and a link table called
UsersAccounts which stores the primary keys from the Users and
Accounts tables to associate the user and account. Any advice will be
appreciated
Thanks
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