NHibernate.MappingException: No persister for: ProxyForFieldInterceptor about nhibernate-envers

[NikitaEgorov]

I explain what happened
nhibernate/nhibernate-core#2913

[RogerKratz]

Can you write a failing test? Or at least show some minimal mapping to recreate the issue?

[NikitaEgorov]

I use test from NHibernate.Envers.Tests.Integration.EntityNames.SingleAssociatedAudited.ReadEntityAssociatedAuditedTest

Change mapping (add lazy everywhere)

<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2"
									 assembly="NHibernate.Envers.Tests"
									 namespace="NHibernate.Envers.Tests.Integration.EntityNames.SingleAssociatedAudited">
	<class name="Person" entity-name="Personaje" table ="OWNERS">
		<id name="Id" column="ID_PERSON" type="long" >
			<generator class="native" />
		</id>
		<property name="Name" type="string" length="255"
			column="NAME" not-null="true" lazy="true" />
		<property name="Age" type="int" lazy="true" column="AGE"/>
	</class>

	<!-- Deliberately use the same domain object and map it to a different database table. See issue HHH-4648. -->
	<class name="Person" entity-name="Driveraje" table ="DRIVERS">
		<id name="Id" column="ID_PERSON" type="long" >
			<generator class="native" />
		</id>
		<property name="Name" type="string" length="255"
			column="NAME" not-null="true" lazy="true" />
		<property name="Age" type="int" column="AGE" lazy="true"/>
	</class>


	<class name="Car" >
		<id name="Id" column="ID_CAR" type="long">
			<generator class="native" />
		</id>
		<property name="Number" type="int" not-null="true" column="numb" lazy="true"/>
		<many-to-one name="Owner" entity-name="Personaje"/>
		<many-to-one name="Driver" entity-name="Driveraje"/>
	</class>
</hibernate-mapping>

And change Test initialize (add reference to exists item)

protected override void Initialize()
{
        var pers1 = new Person { Name = "Hernan", Age = 15 };
        var pers2 = new Person { Name = "Leandro", Age = 19 };

	var car1 = new Car {Number = 1, Owner = pers1};
	var car2 = new Car {Number = 2, Owner = pers2};

	//rev 1
	using (var tx = Session.BeginTransaction())
	{
		id_pers1 = (long) Session.Save("Personaje", pers1);
		id_car1 = (long) Session.Save(car1);
		tx.Commit();
	}

	//rev 2
	using (var tx = Session.BeginTransaction())
	{
		pers1.Age = 50;
		id_pers2 = (long) Session.Save("Personaje", pers2);
		id_car2 = (long) Session.Save(car2);
		tx.Commit();
	}

	Session.Clear();

	// THIS IS THE BUG LOGIC
	using (var tx = Session.BeginTransaction())
	{
		var pp = Session.Query<Person>().Where(x => x.Id == id_pers1).SingleOrDefault();

		var car3 = new Car { Number = 3, Owner = pp };
		Session.Save(car3);
		tx.Commit();
	}
}

No persister for: PersonProxyForFieldInterceptor

[RogerKratz]

Most probably same issue as https://hibernate.atlassian.net/browse/HHH-13760.

Can you please create a PR where you've simplify above example as much as possible and created a new failing test for it?

[NikitaEgorov]

@RogerKratz
Pull request with test for bug reproducing
#38

[bahusoid]

See possible fix nhibernate/nhibernate-core#2913 (comment)

[RogerKratz]

fixed