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Added omitted documentation for ArrayField__len.

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Marc Tamlyn 2014-05-22 13:42:31 +01:00
parent 3545f31bcf
commit 48348782e6
1 changed files with 14 additions and 0 deletions
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docs/ref/contrib/postgres/fields.txt
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@ -157,6 +157,20 @@ the SQL operator ``&&``. For example::
>>> Post.objects.filter(tags__overlap=['thoughts', 'tutorial']) >>> Post.objects.filter(tags__overlap=['thoughts', 'tutorial'])
[<Post: First post>, <Post: Second post>, <Post: Third post>] [<Post: First post>, <Post: Second post>, <Post: Third post>]
.. fieldlookup:: arrayfield.len
len
~~~
Returns the length of the array. The lookups available afterwards are those
available for :class:`~django.db.models.IntegerField`. For example::
>>> Post.objects.create(name='First post', tags=['thoughts', 'django'])
>>> Post.objects.create(name='Second post', tags=['thoughts'])
>>> Post.objects.filter(tags__len=1)
[<Post: Second post>]
.. fieldlookup:: arrayfield.index .. fieldlookup:: arrayfield.index
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