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Fixed several bugs in docs/url_dispatch.txt, and made several clarifications 

git-svn-id: http://code.djangoproject.com/svn/django/trunk@1453 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Adrian Holovaty 2005-11-27 14:35:18 +00:00
parent 0cb2a00369
commit 501b06c7b4
1 changed files with 29 additions and 17 deletions
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46
docs/url_dispatch.txt
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@ -56,10 +56,10 @@ Here's a sample URLconf::
from django.conf.urls.defaults import * from django.conf.urls.defaults import *
urlpatterns = patterns('', urlpatterns = patterns('',
(r'^/articles/2003/$', 'news.views.special_case_2003'), (r'^articles/2003/$', 'news.views.special_case_2003'),
(r'^/articles/(?P<year>\d{4})/$', 'news.views.year_archive'), (r'^articles/(?P<year>\d{4})/$', 'news.views.year_archive'),
(r'^/articles/(?P<year>\d{4})/(?P<month>\d{2})/$', 'news.views.month_archive'), (r'^articles/(?P<year>\d{4})/(?P<month>\d{2})/$', 'news.views.month_archive'),
(r'^/articles/(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d+)/$', 'news.views.article_detail'), (r'^articles/(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d+)/$', 'news.views.article_detail'),
) )
Notes: Notes:
@ -71,6 +71,9 @@ Notes:
where ``name`` is the name for that value and ``pattern`` is some pattern where ``name`` is the name for that value and ``pattern`` is some pattern
to match. to match.
* There's no need to add a leading slash, because every URL has that. For
example, it's ``^articles``, not ``^/articles``.
* The ``"r"`` in front of each regular expression string is optional but * The ``"r"`` in front of each regular expression string is optional but
recommended. It tells Python that a string is "raw" -- that nothing in recommended. It tells Python that a string is "raw" -- that nothing in
the string should be escaped. See `Dive Into Python's explanation`_. the string should be escaped. See `Dive Into Python's explanation`_.
@ -168,7 +171,7 @@ Each captured argument is sent to the view as a plain Python string, regardless
of what sort of match the regular expression makes. For example, in this of what sort of match the regular expression makes. For example, in this
URLconf:: URLconf::
(r'^/articles/(?P<year>\d{4})/$', 'news.views.year_archive'), (r'^articles/(?P<year>\d{4})/$', 'news.views.year_archive'),
...the ``year`` argument to ``news.views.year_archive()`` will be a string, not ...the ``year`` argument to ``news.views.year_archive()`` will be a string, not
an integer, even though the ``\d{4}`` will only match integer strings. an integer, even though the ``\d{4}`` will only match integer strings.
@ -178,8 +181,8 @@ Here's an example URLconf and view::
# URLconf # URLconf
urlpatterns = patterns('', urlpatterns = patterns('',
(r'^/blog/$', 'blog.views.page'), (r'^blog/$', 'blog.views.page'),
(r'^/blog/page(?P<num>\d+)/$', 'blog.views.page'), (r'^blog/page(?P<num>\d+)/$', 'blog.views.page'),
) )
# View (in blog/views.py) # View (in blog/views.py)
@ -209,9 +212,9 @@ Here's the example URLconf from the `Django overview`_::
from django.conf.urls.defaults import * from django.conf.urls.defaults import *
urlpatterns = patterns('', urlpatterns = patterns('',
(r'^/articles/(?P<year>\d{4})/$', 'myproject.news.views.year_archive'), (r'^articles/(?P<year>\d{4})/$', 'myproject.news.views.year_archive'),
(r'^/articles/(?P<year>\d{4})/(?P<month>\d{2})/$', 'myproject.news.views.month_archive'), (r'^articles/(?P<year>\d{4})/(?P<month>\d{2})/$', 'myproject.news.views.month_archive'),
(r'^/articles/(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d+)/$', 'myproject.news.views.article_detail'), (r'^articles/(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d+)/$', 'myproject.news.views.article_detail'),
) )
In this example, each view has a common prefix -- ``"myproject.news.views"``. In this example, each view has a common prefix -- ``"myproject.news.views"``.
@ -224,9 +227,9 @@ With this in mind, the above example can be written more concisely as::
from django.conf.urls.defaults import * from django.conf.urls.defaults import *
urlpatterns = patterns('myproject.news.views', urlpatterns = patterns('myproject.news.views',
(r'^/articles/(?P<year>\d{4})/$', 'year_archive'), (r'^articles/(?P<year>\d{4})/$', 'year_archive'),
(r'^/articles/(?P<year>\d{4})/(?P<month>\d{2})/$', 'month_archive'), (r'^articles/(?P<year>\d{4})/(?P<month>\d{2})/$', 'month_archive'),
(r'^/articles/(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d+)/$', 'article_detail'), (r'^articles/(?P<year>\d{4})/(?P<month>\d{2})/(?P<day>\d+)/$', 'article_detail'),
) )
Note that you don't put a trailing dot (``"."``) in the prefix. Django puts Note that you don't put a trailing dot (``"."``) in the prefix. Django puts
@ -252,8 +255,19 @@ number of other URLconfs::
(r'^rss/', include('django.conf.urls.rss')), (r'^rss/', include('django.conf.urls.rss')),
) )
Note that an included URLconf receives any captured parameters from parent Note that the regular expressions in this example don't have a ``$``
URLconfs, so the following example is valid:: (end-of-string match character) but do include a trailing slash. Whenever
Django encounters ``include()``, it chops off whatever part of the URL matched
up to that point and sends the remaining string to the included URLconf for
further processing.
.. _`Django website`: http://www.djangoproject.com/
Captured parameters
-------------------
An included URLconf receives any captured parameters from parent URLconfs, so
the following example is valid::
# In settings/urls/main.py # In settings/urls/main.py
urlpatterns = patterns('', urlpatterns = patterns('',
@ -269,8 +283,6 @@ URLconfs, so the following example is valid::
In the above example, the captured ``"username"`` variable is passed to the In the above example, the captured ``"username"`` variable is passed to the
included URLconf, as expected. included URLconf, as expected.
.. _`Django website`: http://www.djangoproject.com/
Passing extra options to view functions Passing extra options to view functions
======================================= =======================================