Hi there,
I have written 3 tests to show my issue.
Test 1 is failing and I would like to hear if its possible to get this
working like in Test 3. Test 2 is also failing, but this is expected.
I have the following object model. "Entity" is an aggregate root so
"Element" will not be updated/saved/deleted directly (I know according to
aggregate root pattern that its wrong invoke entity.Elements.Clear()
directly as I do below - its an object model with the purpose of simplicity
in this scenario).
public class Entity
{
public int Id { get; set; }
IList<Element> Elements { get; set; }
public Entity()
{
Elements = new List<Element>();
}
}
public class Element
{
public int Id { get; set; }
}
Test 1:
-------------------------------------------------------------------------------------------------------------------
The following test is performed when cascade="all-delete-orphan"
inverse="true" is set for the bag.
int entityId = 0;
using (var session = sessionFactory.OpenSession())
using (var tx = session.BeingTransaction())
{
var entity = new Entity();
entity.Elements.Add(new Element());
entityId = (int)session.Save(entity);
tx.Commit();
}
using (var session = sessionFactory.OpenSession())
using (var tx = session.BeingTransaction())
{
var entity = session.Get<Entity>(entityId);
Assert.That(entity.Elements.Count, Is.EqualTo(1)); // Fail, the count is
equal to 0!!! I can see in the Element row data that the FK is NULL.
}
Test 2:
-------------------------------------------------------------------------------------------------------------------
The following test is performed when cascade="all-delete-orphan"
inverse="false" is set for the bag.
int entityId = 0;
using (var session = sessionFactory.OpenSession())
using (var tx = session.BeingTransaction())
{
var entity = new Entity();
entity.Elements.Add(new Element());
entityId = (int)session.Save(entity);
tx.Commit();
}
using (var session = sessionFactory.OpenSession())
using (var tx = session.BeingTransaction())
{
var entity = session.Get<Entity>(entityId);
Assert.That(entity.Elements.Count, Is.EqualTo(1)); // Success
entity.Elements.Clear();
tx.Commit(); //
Exception: NHibernate.ObjectDeletedException : deleted object would be
re-saved by cascade (remove deleted object from associations)
}
Test 3:
-------------------------------------------------------------------------------------------------------------------
The following test is performed when cascade="all-delete-orphan"
inverse="true" is set for the bag.
int entityId = 0;
using (var session = sessionFactory.OpenSession())
using (var tx = session.BeingTransaction())
{
var entity = new Entity();
entityId = (int)session.Save(entity);
tx.Commit();
}
using (var session = sessionFactory.OpenSession())
using (var tx = session.BeingTransaction())
{
var entity = session.Get<Entity>(entityId);
entity.Elements.Add(new Element());
session.Update(entity);
tx.Commit();
}
using (var session = sessionFactory.OpenSession())
using (var tx = session.BeingTransaction())
{
var entity = session.Get<Entity>(entityId);
Assert.That(entity.Elements.Count, Is.EqualTo(1)); // Success
}
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