I think NHiA is based on NH 1.2. <<What does it do exactly ?>> Have a look at my prev link.
________________________________________ Från: [email protected] [[email protected]] för graphicsxp [[email protected]] Skickat: den 6 april 2009 19:27 Till: nhusers Ämne: [nhusers] Re: how to detect changes to entities I really don't get this Merge thing. I've got the book NHibernate in Action, and there's no mention of it, neither is there a mention of it in my Nhibernate doc. Besides I'm using Spring.net (I know it is a bit off topic) and their HibernateTemplate does not seem to provide a Merge function. What does it do exactly ? Since I re-open a new session on the server side when the client saves an entity, I think I need something to get the entity again from the database in order to compare it with the changes the client made, isnt that right ? On 6 avr, 17:50, Fabio Maulo <[email protected]> wrote: > Merge > > 2009/4/6 graphicsxp <[email protected]> > > > > > > > If I use Update(), NH does a UPDATE query (regardless my entity was > > modified or not) but doesn't persist or delete the items in the > > collection... > > > On 6 avr, 17:28, Fabio Maulo <[email protected]> wrote: > > > The method to reattach the entity to a new session is wrong.You should > > use > > > Update or Merge. > > > > 2009/4/6 graphicsxp <[email protected]> > > > > > Hello, > > > > > I still don't get it. Roger you gave me a link to hibernate doc, but > > > > this is nhibernate and I can't find any references to .Merge() in the > > > > nhibernate doc. > > > > > Here's what I do and what I need ; > > > > > Open Session > > > > Get entity > > > > Close Session > > > > Send entity to client > > > > Client modifies entity > > > > Client sends entity to server > > > > Open Session > > > > Save entity --> here's the issue because the update is made whether > > > > the entity was changed or not by the client > > > > Close Session > > > > > another issue I've just noticed is that if my entity Post holds a > > > > collection of Comments, if I delete some of the comments, when I do > > > > myPost.Save(), nothing gets deleted. (I've specified cascade = "all- > > > > delete-orphan") > > > > > Can you help with this ? > > > > > On 3 avr, 15:12, Roger Kratz <[email protected]> wrote: > > > > >http://www.dil.univ-mrs.fr/~massat/docs/hibernate-3.1/api/org/hiberna > > .. > > > > .) > > > > > > -----Original Message----- > > > > > From: [email protected] [mailto:[email protected]] On > > > > Behalf Of graphicsxp > > > > > Sent: den 3 april 2009 16:09 > > > > > To: nhusers > > > > > Subject: [nhusers] Re: how to detect changes to entities > > > > > > SaveOrUpdate triggers an UPDATE regardless the entity has changed or > > > > > not. I'm not sure about session.Merge. > > > > > > On 3 avr, 15:00, Gustavo Ringel <[email protected]> wrote: > > > > > > session.SaveOrUpdate or session.Merge should be enough for this > > case... > > > > > > I really don't think that sending domain object through the wire is > > a > > > > good > > > > > > practice. But it works for small apps. > > > > > > > Gustavo. > > > > > > > On Fri, Apr 3, 2009 at 4:23 PM, graphicsxp < > > [email protected] > > > > >wrote: > > > > > > > > Hi, > > > > > > > > Normally NH is able to detect any changes made to entities and > > > > > > > when .save() is called, the UPDATE will be made only if the > > entity > > > > was > > > > > > > changed. > > > > > > > > Now the issue is that I'm sending my entities across the wire > > from > > > > the > > > > > > > server to the client (via WCF), the client modifies the entity > > (or > > > > > > > not), clicks on a save button and the entity is sent back to the > > > > > > > server. How can NH detects the entity has changed since it does > > not > > > > > > > belong to the same session ? > > > > > > > > Thanks > > > > -- > > > Fabio Maulo > > -- > 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 -~----------~----~----~----~------~----~------~--~---
