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[1.6.x] Fixed #21137 -- Documented best practice for URLconfs with repeated pattern prefixes. 

Backport of 222460a994 from master
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Michael DiBernardo 2013-09-21 11:22:45 -04:00 committed by Tim Graham
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commit bb8a087949
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docs/topics/http/urls.txt
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@ -365,6 +365,32 @@ instead. For example, consider this URLconf::
In this example, the ``/credit/reports/`` URL will be handled by the
``credit.views.report()`` Django view.
This can be used to remove redundancy from URLconfs where a single pattern
prefix is used repeatedly. For example, consider this URLconf::
from django.conf.urls import patterns, url
urlpatterns = patterns('wiki.views',
url(r'^(?P<page_slug>\w+)-(?P<page_id>\w+)/history/$', 'history'),
url(r'^(?P<page_slug>\w+)-(?P<page_id>\w+)/edit/$', 'edit'),
url(r'^(?P<page_slug>\w+)-(?P<page_id>\w+)/discuss/$', 'discuss'),
url(r'^(?P<page_slug>\w+)-(?P<page_id>\w+)/permissions/$', 'permissions'),
)
We can improve this by stating the common path prefix only once and grouping
the suffixes that differ::
from django.conf.urls import include, patterns, url
urlpatterns = patterns('wiki.views',
url(r'^(?P<page_slug>\w+)-(?P<page_id>\w+)/', include(patterns('',
url(r'^history/$', 'history'),
url(r'^edit/$', 'edit'),
url(r'^discuss/$', 'discuss'),
url(r'^permissions/$', 'permissions'),
))),
)
.. _`Django Web site`: https://www.djangoproject.com/
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