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author | Alex Gaynor <alex.gaynor@gmail.com> | 2010-08-09 21:22:37 +0000 |
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committer | Alex Gaynor <alex.gaynor@gmail.com> | 2010-08-09 21:22:37 +0000 |
commit | 6001ba016a3db4701d56abc6d30868d4e5d88dbf (patch) | |
tree | 7a42c57d802484300c2384d3cd3a968de1804383 /docs/topics/http | |
parent | c7bd48cb9f645e5ff07d1e68b86130e3bb2b043f (diff) | |
download | django-soc2010/query-refactor.tar.gz |
[soc2010/query-refactor] Merged up to trunk r13556, resolved merge conflictsarchive/soc2010/query-refactorsoc2010/query-refactor
git-svn-id: http://code.djangoproject.com/svn/django/branches/soc2010/query-refactor@13565 bcc190cf-cafb-0310-a4f2-bffc1f526a37
Diffstat (limited to 'docs/topics/http')
-rw-r--r-- | docs/topics/http/urls.txt | 78 |
1 files changed, 71 insertions, 7 deletions
diff --git a/docs/topics/http/urls.txt b/docs/topics/http/urls.txt index 5a2980f9d2..d5746c52f2 100644 --- a/docs/topics/http/urls.txt +++ b/docs/topics/http/urls.txt @@ -827,17 +827,80 @@ namespaces into URLs on specific application instances, according to the resolve() --------- -The :func:`django.core.urlresolvers.resolve` function can be used for resolving -URL paths to the corresponding view functions. It has the following signature: +The :func:`django.core.urlresolvers.resolve` function can be used for +resolving URL paths to the corresponding view functions. It has the +following signature: .. function:: resolve(path, urlconf=None) -``path`` is the URL path you want to resolve. As with ``reverse()`` above, you -don't need to worry about the ``urlconf`` parameter. The function returns the -triple (view function, arguments, keyword arguments). +``path`` is the URL path you want to resolve. As with +:func:`~django.core.urlresolvers.reverse`, you don't need to +worry about the ``urlconf`` parameter. The function returns a +:class:`django.core.urlresolvers.ResolverMatch` object that allows you +to access various meta-data about the resolved URL. -For example, it can be used for testing if a view would raise a ``Http404`` -error before redirecting to it:: +.. class:: ResolverMatch() + + .. attribute:: ResolverMatch.func + + The view function that would be used to serve the URL + + .. attribute:: ResolverMatch.args + + The arguments that would be passed to the view function, as + parsed from the URL. + + .. attribute:: ResolverMatch.kwargs + + The keyword arguments that would be passed to the view + function, as parsed from the URL. + + .. attribute:: ResolverMatch.url_name + + The name of the URL pattern that matches the URL. + + .. attribute:: ResolverMatch.app_name + + The application namespace for the URL pattern that matches the + URL. + + .. attribute:: ResolverMatch.namespace + + The instance namespace for the URL pattern that matches the + URL. + + .. attribute:: ResolverMatch.namespaces + + The list of individual namespace components in the full + instance namespace for the URL pattern that matches the URL. + i.e., if the namespace is ``foo:bar``, then namespaces will be + ``[`foo`, `bar`]``. + +A :class:`~django.core.urlresolvers.ResolverMatch` object can then be +interrogated to provide information about the URL pattern that matches +a URL:: + + # Resolve a URL + match = resolve('/some/path/') + # Print the URL pattern that matches the URL + print match.url_name + +A :class:`~django.core.urlresolvers.ResolverMatch` object can also be +assigned to a triple:: + + func, args, kwargs = resolve('/some/path/') + +.. versionchanged:: 1.3 + Triple-assignment exists for backwards-compatibility. Prior to + Django 1.3, :func:`~django.core.urlresolvers.resolve` returned a + triple containing (view function, arguments, keyword arguments); + the :class:`~django.core.urlresolvers.ResolverMatch` object (as + well as the namespace and pattern information it provides) is not + available in earlier Django releases. + +One possible use of :func:`~django.core.urlresolvers.resolve` would be +to testing if a view would raise a ``Http404`` error before +redirecting to it:: from urlparse import urlparse from django.core.urlresolvers import resolve @@ -858,6 +921,7 @@ error before redirecting to it:: return HttpResponseRedirect('/') return response + permalink() ----------- |