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[2.0.x] Fixed #28815 -- Fixed ExtractYear imports in docs/ref/models/expressions.txt. 

Backport of bf49d9eb0b from master
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Benjamin Bach 2017-11-17 23:30:21 +01:00 committed by Tim Graham
parent 5b21e3983d
commit 385e06d8c0
1 changed files with 6 additions and 3 deletions
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docs/ref/models/expressions.txt
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@ -727,7 +727,8 @@ computation. See :ref:`window-frames` for details.
For example, to annotate each movie with the average rating for the movies by
the same studio in the same genre and release year::
>>> from django.db.models import Avg, ExtractYear, F, Window
>>> from django.db.models import Avg, F, Window
>>> from django.db.models.functions import ExtractYear
>>> Movie.objects.annotate(
>>> avg_rating=Window(
>>> expression=Avg('rating'),
@ -745,7 +746,8 @@ genre, and release year) by using three window functions in the same query. The
partition and ordering from the previous example is extracted into a dictionary
to reduce repetition::
>>> from django.db.models import Avg, ExtractYear, F, Max, Min, Window
>>> from django.db.models import Avg, F, Max, Min, Window
>>> from django.db.models.functions import ExtractYear
>>> window = {
>>> 'partition': [F('studio'), F('genre')],
>>> 'order_by': ExtractYear('released').asc(),
@ -826,7 +828,8 @@ If a movie's "peers" are described as movies released by the same studio in the
same genre in the same year, this ``RowRange`` example annotates each movie
with the average rating of a movie's two prior and two following peers::
>>> from django.db.models import Avg, ExtractYear, F, RowRange, Window
>>> from django.db.models import Avg, F, RowRange, Window
>>> from django.db.models.functions import ExtractYear
>>> Movie.objects.annotate(
>>> avg_rating=Window(
>>> expression=Avg('rating'),