I have these domain models(simplified):
public class Role : Entity
{
public Role() { }
public virtual IList<Employee> Employees { get; protected set; }
}
public class Employee : User
{
public Employee() { Role = new Role(); }
public virtual Role Role { get; protected set; }
}
public class User : Entity
{
public virtual UserType Type { get; set; }//UserType is an
emum. i.e. Employee = 1
}
Here are the mappings. Employee is a discriminator.
<class name="User" table="Users" abstract ="false">
<id name="Id" type="Int32" column="Id">
<generator class="identity" />
</id>
<discriminator column="Type"/>
<property name="Type"/>
<subclass name="Employee" discriminator-value="1">
<many-to-one name="Role" column ="Id" class ="Role"/>
</subclass>
<class name="Role" table="Roles">
<id name="Id" type="Int32" column="Id">
<generator class="identity" />
</id>
<bag name="Employees" cascade ="all-delete-orphan">
<key column="Id" />
<one-to-many class="Employee" />
</bag>
</class>
When I called IRepository.SaveOrUpdate(employee), I kept getting an
error. The generated sql query was trying to update the primary key of
the User table. That's why it failed. The problem was solved when I
removed the column and class attributes of the many-to-one element:
<many-to-one name="Role" />
Does the column or the class attribute do anything special to table
per hierarchy mapping? Is that an expected behavior?
Thanks.
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"nhusers" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/nhusers?hl=en
-~----------~----~----~----~------~----~------~--~---
