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Fixed #12620 - Refer to better fieldname in defer docs. Thanks, dwillis. 

git-svn-id: http://code.djangoproject.com/svn/django/trunk@12462 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Jannis Leidel 2010-02-21 23:39:08 +00:00
parent ca9f0879fe
commit 579e8573c8
1 changed files with 3 additions and 3 deletions
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6
docs/ref/models/querysets.txt
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@ -820,7 +820,7 @@ the database.
This is done by passing the names of the fields to not load to ``defer()``::
Entry.objects.defer("lede", "body")
Entry.objects.defer("headline", "body")
A queryset that has deferred fields will still return model instances. Each
deferred field will be retrieved from the database if you access that field
@ -830,7 +830,7 @@ You can make multiple calls to ``defer()``. Each call adds new fields to the
deferred set::
# Defers both the body and lede fields.
Entry.objects.defer("body").filter(headline="Lennon").defer("lede")
Entry.objects.defer("body").filter(rating=5).defer("headline")
The order in which fields are added to the deferred set does not matter. Calling ``defer()`` with a field name that has already been deferred is harmless (the field will still be deferred).
@ -838,7 +838,7 @@ You can defer loading of fields in related models (if the related models are
loading via ``select_related()``) by using the standard double-underscore
notation to separate related fields::
Blog.objects.select_related().defer("entry__lede", "entry__body")
Blog.objects.select_related().defer("entry__headline", "entry__body")
If you want to clear the set of deferred fields, pass ``None`` as a parameter
to ``defer()``::