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Fixed #7546 -- Fixed an incorrect example in the docs that was misleading some

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people. Patch from Dan Watson.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8232 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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Malcolm Tredinnick 2008-08-08 16:00:26 +00:00
parent 90b6e1438f
commit 169b889486
1 changed files with 6 additions and 6 deletions
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12
docs/db-api.txt
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@ -1708,8 +1708,8 @@ When you are filtering an object based on a ``ManyToManyField`` or a reverse
interested in. Consider the ``Blog``/``Entry`` relationship (``Blog`` to
``Entry`` is a one-to-many relation). We might be interested in finding blogs
that have an entry which has both *"Lennon"* in the headline and was published
today. Or we might want to find blogs that have an entry with *"Lennon"* in
the headline as well as an entry that was published today. Since there are
in 2008. Or we might want to find blogs that have an entry with *"Lennon"* in
the headline as well as an entry that was published in 2008. Since there are
multiple entries associated with a single ``Blog``, both of these queries are
possible and make sense in some situations.
@ -1728,16 +1728,16 @@ earlier ``filter()`` call.
That may sound a bit confusing, so hopefully an example will clarify. To
select all blogs that contains entries with *"Lennon"* in the headline and
were published today, we would write::
were published in 2008, we would write::
Blog.objects.filter(entry__headline__contains='Lennon',
entry__pub_date=datetime.date.today())
entry__pub_date__year=2008)
To select all blogs that contain an entry with *"Lennon"* in the headline
**as well as** an entry that was published today, we would write::
**as well as** an entry that was published in 2008, we would write::
Blog.objects.filter(entry__headline__contains='Lennon').filter(
entry__pub_date=datetime.date.today())
entry__pub_date__year=2008)
In this second example, the first filter restricted the queryset to all those
blogs linked to that particular type of entry. The second filter restricted