Hi Luca, What's your code for
r.setImage(newImage) and anything else that might be relevant? Ian On Apr 7, 4:25 pm, Luca Matteis <[email protected]> wrote: > Hello Ian, I tried using your exact piece of code. Still same results. > The recipe still points to the first image instead of the most > recently added one. > > On Thu, Apr 7, 2011 at 5:20 PM, Ian Marshall <[email protected]> wrote: > > Do you use transactions? > > > Instead of your > > > PersistenceManager pm = PMF.get().getPersistenceManager(); > > Recipe r = pm.getObjectById(Recipe.class, recKey); > > try > > { > > r.setImage(newImage); > > } > > finally > > { > > pm.close(); > > } > > > have you tried > > > PersistenceManager pm = PMF.get().getPersistenceManager(); > > Transaction tx = pm.currentTransaction(); > > try > > { > > tx.begin(); > > > Recipe r = pm.getObjectById(Recipe.class, recKey); > > r.setImage(newImage); > > > tx.commit(); > > } > > finally > > { > > try > > { > > if (tx.isActive()) // Because of an exception, say > > tx.rollback(); > > } > > finally > > { > > pm.close(); > > } > > } > > > On Apr 7, 3:03 pm, Luca Matteis <[email protected]> wrote: > >> This is really weird. I cannot find anything on the internet that > >> could help me. It seems such a simple thing to be editing child > >> objects and I find it ridiculous that I can't find a solution. > > >> please help > > >> On Thu, Apr 7, 2011 at 11:53 AM, Luca Matteis <[email protected]> wrote: > >> > Well, I would think the Key has relationship information. The thing is > >> > that I'm able to fetch the image for the recipe, so the relationship > >> > is there somehow. It seems as if setImage() isn't enough for the > >> > linkage to update to the latest image. > > >> > On Thu, Apr 7, 2011 at 11:29 AM, Simon Knott <[email protected]> > >> > wrote: > >> >> Yes, that's what I would have expected - how else would a recipe ever > >> >> retain > >> >> which image it is related to? Is the relationship purely stored within > >> >> the > >> >> key of the Image? > > >> >> I must admit that without any knowledge of JDO and its relationship > >> >> management, I'm just making wild guesses! > > >> >> -- > >> >> You received this message because you are subscribed to the Google > >> >> Groups > >> >> "Google App Engine for Java" 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/google-appengine-java?hl=en. > > > -- > > You received this message because you are subscribed to the Google Groups > > "Google App Engine for Java" 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 > > athttp://groups.google.com/group/google-appengine-java?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" 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/google-appengine-java?hl=en.
