Automapper: union-subtree not propagating through class hierarchy

[jcpreston26]

I am converting a project from using ClassMaps to using the AutoMapper in order to simplify the existing project and any future changes. One class inheritance tree in the project is built using UnionSubclassMapping and when attempting to build the NH configuration using the automapper, the following error is thrown:

NHibernate.MappingException: (XmlDocument)(267,8): XML validation error: The element 'union-subclass' in namespace 'urn:nhibernate-mapping-2.2' has invalid child element 'joined-subclass' in namespace 'urn:nhibernate-mapping-2.2'. List of possible elements expected: 'property, many-to-one, one-to-one, component, dynamic-component, properties, any, map, set, list, bag, idbag, array, primitive-array, union-subclass, loader, sql-insert, sql-update, sql-delete, results
et, query, sql-query' in namespace 'urn:nhibernate-mapping-2.2'.

This inheritance tree has three layers. The AutoMapper was not carrying the knowledge that union-subtree was to be used down to the grandchild object, which caused it to switch and start using joined-subtree, which is not allowed.

I have assembled a patch and a test for checking the issue. I don't know if a similar issue exists for other subclassing strategies. I can also confirm that the patched version of Fluent works with my project and it is now generating correct HBM files.

[chester89]

What version of NHibernate did you use to test that?

[jcpreston26]

I saw the same behavior when using both NH 4.0.0.4000 and NH 4.0.4.4000.

I also just went back and tested it with Fluent 1.4 and NH 3.3.1 and had the same exception thrown.

[chester89]

I see. Let me try that and I think I can make a bugfix release in January

среда, 6 января 2016 г. пользователь Jared Preston написал:

I saw the same behavior when using both NH 4.0.0.4000 and NH 4.0.4.4000.

I also just went back and tested it with Fluent 1.4 and NH 3.3.1 and had
the same exception thrown.

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[hazzik]

Looks legit. I've run tests locally.