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Refs #24462 -- Emphasized that order_by() clears previous ordering.

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Tim Graham 2015-03-13 15:40:25 -04:00
parent e8a758e941
commit b9d9ab23bd
1 changed files with 5 additions and 0 deletions
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5
docs/ref/models/querysets.txt
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@ -388,6 +388,11 @@ You can tell if a query is ordered or not by checking the
:attr:`.QuerySet.ordered` attribute, which will be ``True`` if the
``QuerySet`` has been ordered in any way.
Each ``order_by()`` call will clear any previous ordering. For example, this
query will be ordered by ``pub_date`` and not ``headline``::
Entry.objects.order_by('headline').order_by('pub_date')
.. warning::
Ordering is not a free operation. Each field you add to the ordering