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[2.0.x] Fixed #29032 -- Fixed an example of using expressions in QuerySet.values().

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Backport of 7fbb1bd00d from master
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Mariusz Felisiak 2018-01-19 08:55:29 +01:00
parent fbe7c8f413
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8
docs/ref/models/querysets.txt
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@ -540,10 +540,10 @@ within the same ``values()`` clause. If you need to group by another value,
add it to an earlier ``values()`` clause instead. For example::
>>> from django.db.models import Count
>>> Blog.objects.values('author', entries=Count('entry'))
<QuerySet [{'author': 1, 'entries': 20}, {'author': 1, 'entries': 13}]>
>>> Blog.objects.values('author').annotate(entries=Count('entry'))
<QuerySet [{'author': 1, 'entries': 33}]>
>>> Blog.objects.values('entry__authors', entries=Count('entry'))
<QuerySet [{'entry__authors': 1, 'entries': 20}, {'entry__authors': 1, 'entries': 13}]>
>>> Blog.objects.values('entry__authors').annotate(entries=Count('entry'))
<QuerySet [{'entry__authors': 1, 'entries': 33}]>
A few subtleties that are worth mentioning: