Hi Mike, It is not a bug. It is just how it works.
Regards On Thu, Jul 28, 2016 at 3:53 AM, Mike Dewhirst <[email protected]> wrote: > On 28/07/2016 5:46 AM, Constantine Covtushenko wrote: > >> Hi Stodge, >> >> As said in Django current version of documentation >> <https://docs.djangoproject.com/en/1.9/ref/signals/#post-delete>, >> 'post_delete' signal is sent after record is deleted. This means also >> that transaction is closed at that moment. And DB should not has deleted >> instance any more. >> >> I have double checked the Django code and can say that Django send that >> signal just before transaction is committed. >> > > Is this a Django bug? > > Is it the same for post_save? > > Mike > > So technically instance should be inside DB for Hibernate processing. >> >> I can suggest you to create a custom signal and send it after >> transaction closed. >> That should solve your problem. >> >> Regards, >> >> On Wed, Jul 27, 2016 at 5:27 PM, Stodge <[email protected] >> <mailto:[email protected]>> wrote: >> >> My website uses a combination of Django + Java apps to function. For >> this particular problem, a record is deleted from the DB via a >> TastyPie resource DELETE operation. A Django signal post_delete >> handleris invoked, which submits a DELETE request to Jetty running >> in the Java app. The Java app then performs a query using Hibernate. >> >> What appears to be happening is that Django thinks the record was >> deleted: >> >> DynamicVolume.objects.filter(user=instance.user).count() >> >> Returns ZERO. >> >> However, the Java app thinks the record still exists unless I make >> it sleep for several seconds before asking Hibernate to query the DB. >> >> I've tried forcing Hibernate to clear its cache with no success. Is >> there a way to force Django to commit the deletion (flush the cache)? >> >> Thanks >> >> -- >> You received this message because you are subscribed to the Google >> Groups "Django users" group. >> To unsubscribe from this group and stop receiving emails from it, >> send an email to [email protected] >> <mailto:[email protected]>. >> To post to this group, send email to [email protected] >> <mailto:[email protected]>. >> Visit this group at https://groups.google.com/group/django-users. >> To view this discussion on the web visit >> >> https://groups.google.com/d/msgid/django-users/e76d5cfa-f4bc-41db-a322-0d44aa0719dd%40googlegroups.com >> < >> https://groups.google.com/d/msgid/django-users/e76d5cfa-f4bc-41db-a322-0d44aa0719dd%40googlegroups.com?utm_medium=email&utm_source=footer >> >. >> For more options, visit https://groups.google.com/d/optout. >> >> >> -- >> You received this message because you are subscribed to the Google >> Groups "Django users" group. >> To unsubscribe from this group and stop receiving emails from it, send >> an email to [email protected] >> <mailto:[email protected]>. >> To post to this group, send email to [email protected] >> <mailto:[email protected]>. >> Visit this group at https://groups.google.com/group/django-users. >> To view this discussion on the web visit >> >> https://groups.google.com/d/msgid/django-users/CAK52boWeFYGOhk0CL%2BoEimreb2k%2BgFwL2rBb0imoPbmfpwo5Yw%40mail.gmail.com >> < >> https://groups.google.com/d/msgid/django-users/CAK52boWeFYGOhk0CL%2BoEimreb2k%2BgFwL2rBb0imoPbmfpwo5Yw%40mail.gmail.com?utm_medium=email&utm_source=footer >> >. >> For more options, visit https://groups.google.com/d/optout. >> > > -- > You received this message because you are subscribed to the Google Groups > "Django users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/django-users. > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-users/450c40f7-8997-6669-b307-b39825d00adb%40dewhirst.com.au > . > > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/django-users. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/CAK52boUd%3D1-QiYBhA-284%3D-J-VZCiGKcnsmRs9Kpk%2BYtaff8ww%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
