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Code Issues 32 Releases Wiki Activity

Added a note about not using 'pk' as a field name for a non-primary-key field.

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git-svn-id: http://code.djangoproject.com/svn/django/branches/queryset-refactor@6114 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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Malcolm Tredinnick 2007-09-13 02:48:06 +00:00
parent 2d07a19c19
commit 4751fd9ba7
1 changed files with 5 additions and 0 deletions
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docs/db-api.txt
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@ -1348,6 +1348,11 @@ equivalent::
Entry.objects.filter(blog__id=3) # __exact is implied Entry.objects.filter(blog__id=3) # __exact is implied
Entry.objects.filter(blog__pk=3) # __pk implies __id__exact Entry.objects.filter(blog__pk=3) # __pk implies __id__exact
.. note::
Because of this shortcut, you cannot have a field in your model called
``pk`` that is not the primary key of the model. It will always be
replaced by the name of the model's primary key in queries.
Lookups that span relationships Lookups that span relationships
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~