id summary reporter owner description type status component version severity resolution keywords cc stage has_patch needs_docs needs_tests needs_better_patch easy ui_ux 28175 __in query on parent model no longer works in 1.11 Daniel Keller nobody "I have models {{{ class Place(models.Model): pass class Community(Place): place_ptr = models.OneToOneField(Place, parent_link=True, on_delete=models.CASCADE, primary_key=True, serialize=False, related_name='+') class Potential(models.Model): community = models.ForeignKey(Community, on_delete=CASCADE) }}} and in 1.10 I can do {{{ Potential.objects.filter(community__in=Place.objects.all()) }}} but in 1.11 this fails with {{{ django.core.exceptions.FieldError: Cannot resolve keyword 'place_ptr' into field. Choices are: [...] }}} In both versions {{{ Potential.objects.filter(community=Place.objects.first()) }}} works fine. It's not clear to me from the docs whether the 1.10 behavior was intended, though. It appears that adding the lines {{{ elif getattr(self.lhs.field.target_field, 'primary_key', False): target_field = 'pk' }}} to django/db/models/fields/related_lookups.py at line 92 fixes this problem." Bug closed Database layer (models, ORM) 1.11 Release blocker fixed Mariusz Felisiak Simon Charette Accepted 1 0 0 0 0 0