delete children first then the rest

Author: amroel

src/NHibernate.Test/NHSpecificTest/NH1845/Fixture.cs

@@ -3,24 +3,24 @@
 using NUnit.Framework;
 namespace NHibernate.Test.NHSpecificTest.NH1845
 {
-	public class Fixture: TestCaseMappingByCode
+	public class Fixture : TestCaseMappingByCode
 	{
 
 		protected override HbmMapping GetMappings()
 		{
 			var mapper = new ModelMapper();
 			mapper.Class<Category>(rc =>
-			                       {
-															 rc.Id(x=> x.Id, map=> map.Generator(Generators.Native));
-															 rc.Property(x=> x.Name);
-															 rc.ManyToOne(x=> x.Parent, map=> map.Column("ParentId"));
-															 rc.Bag(x => x.Subcategories, map =>
-															                              {
-																															map.Access(Accessor.NoSetter);
-																															map.Key(km=> km.Column("ParentId"));
-															                              	map.Cascade(Mapping.ByCode.Cascade.All.Include(Mapping.ByCode.Cascade.DeleteOrphans));
-															                              }, rel => rel.OneToMany());
-			                       });
+								   {
+									   rc.Id(x => x.Id, map => map.Generator(Generators.Native));
+									   rc.Property(x => x.Name);
+									   rc.ManyToOne(x => x.Parent, map => map.Column("ParentId"));
+									   rc.Bag(x => x.Subcategories, map =>
+																	{
+																		map.Access(Accessor.NoSetter);
+																		map.Key(km => km.Column("ParentId"));
+																		map.Cascade(Mapping.ByCode.Cascade.All.Include(Mapping.ByCode.Cascade.DeleteOrphans));
+																	}, rel => rel.OneToMany());
+								   });
 			var mappings = mapper.CompileMappingForAllExplicitlyAddedEntities();
 			return mappings;
 		}
@@ -44,6 +44,9 @@ public void LazyLoad_Initialize_AndEvict()
 			using (ISession session = OpenSession())
 			using (ITransaction transaction = session.BeginTransaction())
 			{
+				// first delete children
+				session.CreateQuery("delete from Category where Parent != null").ExecuteUpdate();
+				// then the rest
 				session.CreateQuery("delete from Category").ExecuteUpdate();
 				transaction.Commit();
 			}