diff options
Diffstat (limited to 'docs/tutorial03.txt')
| -rw-r--r-- | docs/tutorial03.txt | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/docs/tutorial03.txt b/docs/tutorial03.txt index 3a830eb76f..c4c1b4c546 100644 --- a/docs/tutorial03.txt +++ b/docs/tutorial03.txt @@ -91,7 +91,7 @@ Finally, it calls that ``detail()`` function like so:: The ``poll_id='23'`` part comes from ``(?P<poll_id>\d+)``. Using parenthesis around a pattern "captures" the text matched by that pattern and sends it as an argument to the view function; the ``?P<poll_id>`` defines the name that will be used to -identify the matched pattern; and ``\d+`` is a regular experession to match a sequence of +identify the matched pattern; and ``\d+`` is a regular expression to match a sequence of digits (i.e., a number). Because the URL patterns are regular expressions, there really is no limit on @@ -189,7 +189,7 @@ publication date:: from django.http import HttpResponse def index(request): - latest_poll_list = Poll.objects.all().order_by('-pub_date') + latest_poll_list = Poll.objects.all().order_by('-pub_date')[:5] output = ', '.join([p.question for p in latest_poll_list]) return HttpResponse(output) @@ -202,7 +202,7 @@ So let's use Django's template system to separate the design from Python:: from django.http import HttpResponse def index(request): - latest_poll_list = Poll.objects.all().order_by('-pub_date') + latest_poll_list = Poll.objects.all().order_by('-pub_date')[:5] t = loader.get_template('polls/index.html') c = Context({ 'latest_poll_list': latest_poll_list, @@ -257,7 +257,7 @@ provides a shortcut. Here's the full ``index()`` view, rewritten:: from mysite.polls.models import Poll def index(request): - latest_poll_list = Poll.objects.all().order_by('-pub_date') + latest_poll_list = Poll.objects.all().order_by('-pub_date')[:5] return render_to_response('polls/index.html', {'latest_poll_list': latest_poll_list}) Note that we no longer need to import ``loader``, ``Context`` or @@ -288,7 +288,7 @@ exception if a poll with the requested ID doesn't exist. A shortcut: get_object_or_404() ------------------------------- -It's a very common idiom to use ``get_object()`` and raise ``Http404`` if the +It's a very common idiom to use ``get()`` and raise ``Http404`` if the object doesn't exist. Django provides a shortcut. Here's the ``detail()`` view, rewritten:: @@ -313,8 +313,8 @@ exist. foremost design goals of Django is to maintain loose coupling. There's also a ``get_list_or_404()`` function, which works just as -``get_object_or_404()`` -- except using ``get_list()`` instead of -``get_object()``. It raises ``Http404`` if the list is empty. +``get_object_or_404()`` -- except using ``filter()`` instead of +``get()``. It raises ``Http404`` if the list is empty. Write a 404 (page not found) view ================================= |