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Code Issues 32 Releases Wiki Activity

Made the @cached_property example more consistent.

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Bryan Helmig
2017-08-10 11:54:19 -04:00
committed by Tim Graham
parent 9ecf280394
commit 68f0bcb012
1 changed files with 7 additions and 7 deletions
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14
docs/ref/utils.txt
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@@ -471,16 +471,16 @@ https://web.archive.org/web/20110718035220/http://diveintomark.org/archives/2004
{% for friend in person.friends %} {% for friend in person.friends %}
Here, ``friends()`` will be called twice. Since the instance ``person`` in Here, ``friends()`` will be called twice. Since the instance ``person`` in
the view and the template are the same, ``@cached_property`` can avoid the view and the template are the same, decorating the ``friends()`` method
that:: with ``@cached_property`` can avoid that::
from django.utils.functional import cached_property from django.utils.functional import cached_property
@cached_property class Person(models.Model):
def friends(self):
# expensive computation @cached_property
... def friends(self):
return friends ...
Note that as the method is now a property, in Python code it will need to Note that as the method is now a property, in Python code it will need to
be invoked appropriately:: be invoked appropriately::