Add extra comment why deferred fields are skipped with ___ lookups

2017-09-30 20:26:52 +02:00 · 2017-09-30 20:26:52 +02:00 · 30630647c4
parent 2e16112cbe
commit 30630647c4
1 changed files with 3 additions and 0 deletions
--- a/polymorphic/query.py
+++ b/polymorphic/query.py
@ -393,6 +393,9 @@ class PolymorphicQuerySet(QuerySet):
                        # now a superclass of real_concrete_class. Thus it's
                        # sufficient to just use the field name.
                        translated_field_name = field.rpartition('___')[-1]
+
+                        # Check if the field does exist.
+                        # Ignore deferred fields that don't exist in this subclass type.
                        try:
                            real_concrete_class._meta.get_field(translated_field_name)
                        except FieldDoesNotExist: