From 411a6ec93a9b21e5ed1e9fc05b34f021288cd10c Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Iv=C3=A1n=20Camilo=20Trivi=C3=B1o=20L=C3=B3pez?= <25367296+IvanTrivino@users.noreply.github.com> Date: Mon, 29 Aug 2022 23:03:53 -0500 Subject: [PATCH] Fixed #33958 -- Added imports to examples in "Expressions can reference transforms" section. --- docs/topics/db/queries.txt | 3 +++ 1 file changed, 3 insertions(+) diff --git a/docs/topics/db/queries.txt b/docs/topics/db/queries.txt index d2565454538..6deeec50376 100644 --- a/docs/topics/db/queries.txt +++ b/docs/topics/db/queries.txt @@ -701,15 +701,18 @@ Django supports using transforms in expressions. For example, to find all ``Entry`` objects published in the same year as they were last modified:: + >>> from django.db.models import F >>> Entry.objects.filter(pub_date__year=F('mod_date__year')) To find the earliest year an entry was published, we can issue the query:: + >>> from django.db.models import Min >>> Entry.objects.aggregate(first_published_year=Min('pub_date__year')) This example finds the value of the highest rated entry and the total number of comments on all entries for each year:: + >>> from django.db.models import OuterRef, Subquery, Sum >>> Entry.objects.values('pub_date__year').annotate( ... top_rating=Subquery( ... Entry.objects.filter(