By using the API correctly: https://docs.djangoproject.com/en/1.7/topics/db/queries/#backwards-related-objects
Also, this mailing list is not the correct place to ask these questions, you're looking for https://docs.djangoproject.com/en/1.7/internals/mailing-lists/#django-users On Fri, Oct 17, 2014 at 12:18 PM, Taenyon Kim <[email protected]> wrote: > I had a problem in using django 1.7. > Example: > > class ModelA(models.Model): > fielda = models.CharField(max_length=10) > > class ModelsB(models.Model): > modela = models.ForeignKey(ModelA) > fieldb = models.CharField(max_length=10) > > when I query like " modela_instance.modelb_set()', I will get KeyError: > u'manager'. > > > <https://lh6.googleusercontent.com/-sQpoxLasu-c/VEDevTQcTII/AAAAAAAAANE/-FeqRDUCtg8/s1600/Screen%2BShot%2B2014-10-17%2Bat%2B%E1%84%8B%E1%85%A9%E1%84%92%E1%85%AE%2B6.17.15.png> > > How can I resolve this problem? > > > -- > You received this message because you are subscribed to the Google Groups > "Django developers (Contributions to Django itself)" 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 http://groups.google.com/group/django-developers. > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-developers/6267e775-07ee-4e86-94fb-6a94c337349a%40googlegroups.com > <https://groups.google.com/d/msgid/django-developers/6267e775-07ee-4e86-94fb-6a94c337349a%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- George-Cristian Bîrzan -- You received this message because you are subscribed to the Google Groups "Django developers (Contributions to Django itself)" 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 http://groups.google.com/group/django-developers. To view this discussion on the web visit https://groups.google.com/d/msgid/django-developers/CAMxNYaYNU%2BysNUNc57YcSF5cHNYQf6zJRXxuyy%2BwPEZXGRrWBg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
