Commit 169b8894 authored by Malcolm Tredinnick's avatar Malcolm Tredinnick
Browse files

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

people. Patch from Dan Watson.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8232 bcc190cf-cafb-0310-a4f2-bffc1f526a37
parent 90b6e143

docs/db-api.txt

+6 −6
Original line number Diff line number Diff line
@@ -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