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Code Issues 32 Releases Wiki Activity

queryset-refactor: Implemented slicing to end of querysets.

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Refs #2150, #5012.


git-svn-id: http://code.djangoproject.com/svn/django/branches/queryset-refactor@7147 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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Malcolm Tredinnick
2008-02-23 01:34:49 +00:00
parent e2f524ca09
commit 7355fa6b72
8 changed files with 38 additions and 6 deletions
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docs/db-api.txt
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@@ -422,6 +422,14 @@ This returns the sixth through tenth objects (``OFFSET 5 LIMIT 5``)::
Entry.objects.all()[5:10]
You can also slice from the item ''N'' to the end of the queryset. For
example, to return everything from the fixth item onwards::
Entry.objects.all()[5:]
How this last example is implemented in SQL varies depending upon the database
used, but it is supported in all cases.
Generally, slicing a ``QuerySet`` returns a new ``QuerySet`` -- it doesn't
evaluate the query. An exception is if you use the "step" parameter of Python
slice syntax. For example, this would actually execute the query in order to