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Fixed #16079: Clarified (for real this time) how handler404 and handler500 work, and that they only work in a root URLconf.

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git-svn-id: http://code.djangoproject.com/svn/django/trunk@16804 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
James Bennett
2011-09-11 04:01:41 +00:00
parent a829f85b94
commit 94524fbfef
3 changed files with 41 additions and 21 deletions
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18
docs/intro/tutorial03.txt
View File

@@ -356,11 +356,13 @@ the list is empty.
Write a 404 (page not found) view
=================================
When you raise :exc:`~django.http.Http404` from within a view, Django will load
a special view devoted to handling 404 errors. It finds it by looking for the
variable ``handler404``, which is a string in Python dotted syntax -- the same
format the normal URLconf callbacks use. A 404 view itself has nothing special:
It's just a normal view.
When you raise :exc:`~django.http.Http404` from within a view, Django
will load a special view devoted to handling 404 errors. It finds it
by looking for the variable ``handler404`` in your root URLconf (and
only in your root URLconf; setting ``handler404`` anywhere else will
have no effect), which is a string in Python dotted syntax -- the same
format the normal URLconf callbacks use. A 404 view itself has nothing
special: It's just a normal view.
You normally won't have to bother with writing 404 views. By default, URLconfs
have the following line up top::
@@ -392,9 +394,9 @@ Four more things to note about 404 views:
Write a 500 (server error) view
===============================
Similarly, URLconfs may define a ``handler500``, which points to a view to call
in case of server errors. Server errors happen when you have runtime errors in
view code.
Similarly, your root URLconf may define a ``handler500``, which points
to a view to call in case of server errors. Server errors happen when
you have runtime errors in view code.
Use the template system
=======================