The answer http://fabiomaulo.blogspot.com/2009/03/ensuring-updates-on-flush.html
2009/4/2 [email protected] <[email protected]> > > Hi, > > I'm looking for a way to prevent NHibernate from automatically dirty > checking entities and then automatically updating them. > > What I want to achieve is to require session.Update(myObj) to be > called on an object for it to be saved (but associated objects should > also be updated provided there are appropriate cascade rules > configured) > > > Detaching the objects is not a viable solution because of lazy loading > relationships, and I don't think setting flushmode to never is the > right solution either. > > Here's what I'm doing, in case anyone has a better idea... > > I have a web application (asp.net mvc) and I establish a session(nhib > session) on begin_request and commit it on end_request. > > Take an entity update request for example: A user edits the values in > a form and posts it to my application. My app gets the relevant > entity, changes the values then validates the object to make sure it > is in a valid business state. if validation passes, i can call > session.update and return. However if validation fails, i need to > return the user to the edit screen with validation errors. My problem > is that even though im not calling session.update in this failed > validation case, my object is still saved by the auto dirty checking! > > I'd really prefer to turn this behaviour off, I don't want things to > be happening automatically, I want things to be saved only when I > explicitly tell them to be. > > I've read that I can override the default dirty check listener so that > all objects are considered not-dirty and therefore not saved. Is this > an appropriate solution? This is where I am stuck. I've tried creating > my own IDirtyCheckEventListener and registering it in my NHib config, > however (unless I did something wrong) OnDirtyCheck() is never called : > ( > > Can someone please give me some pointers on how to disable this > behaviour and achieve what I want? > > Thanks > > Andrew > > > > -- Fabio Maulo --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "nhusers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nhusers?hl=en -~----------~----~----~----~------~----~------~--~---
