events - NHibernate IPostInsertEventListener : Insert executed multiple times -

i trying test simple nhibernate-based auditing mechanism stores 1 row per changed property changelog table. does, perform actual insert statement expected , perform audit logging twice.

so, do:

string connectionstring = @"data source=.\sqlexpress;initial catalog=audittest;integrated security=sspi;"; fluentconfiguration config = fluently.configure().database(mssqlconfiguration.mssql2008                                                         .connectionstring(c => c.is(connectionstring)).showsql())                                                         .mappings(x => x.fluentmappings.add<class1classmap>())                                                         .mappings(x => x.fluentmappings.add<changelogmap>())                                                         .exposeconfiguration(cfg =>                                                         {                                                             nhibernateauditlistener listener = new nhibernateauditlistener();                                                             cfg.appendlisteners(listenertype.postinsert, new[] { listener });                                                         }); isessionfactory sf =  config.buildsessionfactory(); isession session = sf.opensession(); using (itransaction tr = session.begintransaction()) {     session.save(new class1()         {             firstname="peter",             lastname="pan",             id=100          });     tr.commit(); } 

edit:

altered logging code simple see failure:

public void onpostinsert(postinsertevent @event) {     if (@event.entity iauditable)     {                         console.writeline("----write audit----");         (int index = 0; index < @event.state.length; index++)             console.writeline("----store changes of property {0}----",                               @event.persister.propertynames[index]);     } } 

this generates following output:

nhibernate: insert "class1" (firstname, lastname, id) values (@p0, @p1, @p2); @p0 = 'peter' [type: string (0)], @p1 = 'pan' [type: string (0)], @p2 = 1 [type: int64 (0)] ----write audit---- ----store changes of property firstname---- ----store changes of property lastname---- ----write audit---- ----store changes of property firstname---- ----store changes of property lastname---- 

as see, it's not eventhandler code that's erroneous, framework calling behaves unexpectedly (calling onpostinsert method twice). ideas why happening?

sample project download

okay everybody, problem exists in detail of handling within programm. building fluentconfiguration-instance on fly creates the basic nhibernate configuration.

this done on call of these 2 lines (variable config of type fluentconfiguration):

new schemaexport(config.buildconfiguration()).create(true, true); 

and

isessionfactory sf = config.buildsessionfactory();  

the fluentconfiguration caches first created instance , reuses creating new instance isessionfactory-instance. on both calls exposeconfiguration of fluentconfiguration instance called. there 2 instances of nhibernateauditlistener within session persisting data.

try this:

string connectionstring = @"data source=.\sqlexpress;initial catalog=audittest;integrated security=sspi;"; var config = fluently.configure().database(mssqlconfiguration.mssql2008                                                     .connectionstring(c => c.is(connectionstring)).showsql())                                                     .mappings(x => x.fluentmappings.add<class1classmap>())                                                     .mappings(x => x.fluentmappings.add<changelogmap>())                                                     .exposeconfiguration(cfg =>                                                     {                                                         nhibernateauditlistener listener = new nhibernateauditlistener();                                                         cfg.appendlisteners(listenertype.postinsert, new[] { listener });                                                     })                                                     .buildconfiguration(); new schemaexport(config).create(true, true); console.writeline("----------------------------------------------");  isessionfactory sf =  config.buildsessionfactory(); isession session = sf.opensession(); using (itransaction tr = session.begintransaction()) {     session.save(new class1()     {         firstname="peter",         lastname="pan",         id=100      }); tr.commit(); }     

within config have real nhibernate configuration instance, 1 listener registered.

got it?!