Re: @transaction.atomic ignored?

@transaction.atomic will only look at the default database. Since you're using multiple ones I think you want something like:

@transaction.atomic(using=DB1)

@transaction.atomic(using=DB2)

def process_all():

    # ....

On Fri, Jun 26, 2015 at 10:27 AM, Lene Preuss <lene.preuss@gmail.com> wrote:

Hi, 

I want to write a large number of model instances to DB, in a multi-database setup. The way I am doing this is essentially:

@transaction.atomic

def process_all():

    for record in Model.objects.using(DB1).all():

        process_one(record)

def process_one(record):

    do_something_with(record)

    record.save(using=DB2)

The way I understand the docs (https://docs.djangoproject.com/en/1.8/topics/db/transactions/#controlling-transactions-explicitly) this should start a transaction when process_all() is entered, and commit it when process_all() is finished - so all records should be written at once. However, this is not what happens - no transaction is started, and all records are written to DB immediately. 

Neither ATOMIC_REQUESTS nor AUTOCOMMIT are touched in the settings. FWIW, I use a Postgres DB and Django 1.7.8. Also, if I replace the @transactions.atomic decorator with: with transactions.atomic() do: ..., that doesn't change anything.

What am I missing?

Thanks, Lene

--
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 django-users+unsubscribe@googlegroups.com.
To post to this group, send email to django-users@googlegroups.com.
Visit this group at http://groups.google.com/group/django-users.
To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/ef8c8919-6004-462b-93c4-f28fefa28e2b%40googlegroups.com.
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 django-users+unsubscribe@googlegroups.com.
To post to this group, send email to django-users@googlegroups.com.
Visit this group at http://groups.google.com/group/django-users.
To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/CAD4ANxW1Y-gpeAOohdo2r2%3DKS4U9hX848tXwD4ZbiXCJQZASpA%40mail.gmail.com.
For more options, visit https://groups.google.com/d/optout.