#29567: It raise FieldError when the F() function uses a forign key field. -------------------------------+-------------------------------------- Reporter: HongWeipeng | Owner: nobody Type: Bug | Status: new Component: Uncategorized | Version: 2.0 Severity: Normal | Resolution: Keywords: | Triage Stage: Unreviewed Has patch: 0 | Needs documentation: 0 Needs tests: 0 | Patch needs improvement: 0 Easy pickings: 0 | UI/UX: 0 -------------------------------+-------------------------------------- Description changed by HongWeipeng:
Old description: > ``` > class B(models.Model): > name = models.CharField(max_length=10) > > class A(models.Model): > name = models.CharField(max_length=10) > b = models.ForeignKey('B', on_delete=models.CASCADE) > ``` > And then: > ``` > A.objects.all().update(name=F('b__name')) > > raise FieldError("Joined field references are not permitted in this > query") > django.core.exceptions.FieldError: Joined field references are not > permitted in this query > ``` New description: {{{#!python class B(models.Model): name = models.CharField(max_length=10) class A(models.Model): name = models.CharField(max_length=10) b = models.ForeignKey('B', on_delete=models.CASCADE) }}} And then: {{{#!python A.objects.all().update(name=F('b__name')) raise FieldError("Joined field references are not permitted in this query") django.core.exceptions.FieldError: Joined field references are not permitted in this query }}} -- -- Ticket URL: <https://code.djangoproject.com/ticket/29567#comment:1> Django <https://code.djangoproject.com/> The Web framework for perfectionists with deadlines. -- You received this message because you are subscribed to the Google Groups "Django updates" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-updates+unsubscr...@googlegroups.com. To post to this group, send email to django-updates@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-updates/069.d1c2dfb598d31ba06c637a1704952979%40djangoproject.com. For more options, visit https://groups.google.com/d/optout.