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Fixed #16218 -- date_list order in generic CBVs. 

Thanks nnrcschmdt for the report and bpeschier for the initial
version of the patch.
This commit is contained in:
Aymeric Augustin 2012-09-22 11:45:51 +02:00
parent 59afc18f37
commit baa33cd8fa
4 changed files with 61 additions and 22 deletions
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6
django/views/generic/dates.py
View File

@ -377,7 +377,7 @@ class BaseDateListView(MultipleObjectMixin, DateMixin, View):
"""
return self.date_list_period
def get_date_list(self, queryset, date_type=None):
def get_date_list(self, queryset, date_type=None, ordering='ASC'):
"""
Get a date list by calling `queryset.dates()`, checking along the way
for empty lists that aren't allowed.
@ -387,7 +387,7 @@ class BaseDateListView(MultipleObjectMixin, DateMixin, View):
if date_type is None:
date_type = self.get_date_list_period()
date_list = queryset.dates(date_field, date_type)[::-1]
date_list = queryset.dates(date_field, date_type, ordering)
if date_list is not None and not date_list and not allow_empty:
name = force_text(queryset.model._meta.verbose_name_plural)
raise Http404(_("No %(verbose_name_plural)s available") %
@ -409,7 +409,7 @@ class BaseArchiveIndexView(BaseDateListView):
Return (date_list, items, extra_context) for this request.
"""
qs = self.get_dated_queryset(ordering='-%s' % self.get_date_field())
date_list = self.get_date_list(qs)
date_list = self.get_date_list(qs, ordering='DESC')
if not date_list:
qs = qs.none()

12
docs/ref/class-based-views/mixins-date-based.txt
View File

@ -318,12 +318,16 @@ BaseDateListView
Returns the aggregation period for ``date_list``. Returns
:attr:`~BaseDateListView.date_list_period` by default.
.. method:: get_date_list(queryset, date_type=None)
.. method:: get_date_list(queryset, date_type=None, ordering='ASC')
Returns the list of dates of type ``date_type`` for which ``queryset``
contains entries. For example, ``get_date_list(qs, 'year')`` will
return the list of years for which ``qs`` has entries. If
``date_type`` isn't provided, the result of
:meth:`BaseDateListView.get_date_list_period` is used. See
:meth:`~django.db.models.query.QuerySet.dates()` for the ways that the
``date_type`` argument can be used.
:meth:`~BaseDateListView.get_date_list_period` is used. ``date_type``
and ``ordering`` are simply passed to
:meth:`QuerySet.dates()<django.db.models.query.QuerySet.dates>`.
.. versionchanged:: 1.5
The ``ordering`` parameter was added, and the default order was
changed to ascending.

15
docs/releases/1.5.txt
View File

@ -152,6 +152,21 @@ year|date:"Y" }}``.
``next_year`` and ``previous_year`` were also added in the context. They are
calculated according to ``allow_empty`` and ``allow_future``.
Context in year and month archive class-based views
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
:class:`~django.views.generic.dates.YearArchiveView` and
:class:`~django.views.generic.dates.MonthArchiveView` were documented to
provide a ``date_list`` sorted in ascending order in the context, like their
function-based predecessors, but it actually was in descending order. In 1.5,
the documented order was restored. You may want to add (or remove) the
``reversed`` keyword when you're iterating on ``date_list`` in a template::
{% for date in date_list reversed %}
:class:`~django.views.generic.dates.ArchiveIndexView` still provides a
``date_list`` in descending order.
Context in TemplateView
~~~~~~~~~~~~~~~~~~~~~~~

50
tests/regressiontests/generic_views/dates.py
View File

@ -23,29 +23,30 @@ requires_tz_support = skipUnless(TZ_SUPPORT,
"time zone, but your operating system isn't able to do that.")
def _make_books(n, base_date):
for i in range(n):
b = Book.objects.create(
name='Book %d' % i,
slug='book-%d' % i,
pages=100+i,
pubdate=base_date - datetime.timedelta(days=i))
class ArchiveIndexViewTests(TestCase):
fixtures = ['generic-views-test-data.json']
urls = 'regressiontests.generic_views.urls'
def _make_books(self, n, base_date):
for i in range(n):
b = Book.objects.create(
name='Book %d' % i,
slug='book-%d' % i,
pages=100+i,
pubdate=base_date - datetime.timedelta(days=1))
def test_archive_view(self):
res = self.client.get('/dates/books/')
self.assertEqual(res.status_code, 200)
self.assertEqual(res.context['date_list'], Book.objects.dates('pubdate', 'year')[::-1])
self.assertEqual(list(res.context['date_list']), list(Book.objects.dates('pubdate', 'year', 'DESC')))
self.assertEqual(list(res.context['latest']), list(Book.objects.all()))
self.assertTemplateUsed(res, 'generic_views/book_archive.html')
def test_archive_view_context_object_name(self):
res = self.client.get('/dates/books/context_object_name/')
self.assertEqual(res.status_code, 200)
self.assertEqual(res.context['date_list'], Book.objects.dates('pubdate', 'year')[::-1])
self.assertEqual(list(res.context['date_list']), list(Book.objects.dates('pubdate', 'year', 'DESC')))
self.assertEqual(list(res.context['thingies']), list(Book.objects.all()))
self.assertFalse('latest' in res.context)
self.assertTemplateUsed(res, 'generic_views/book_archive.html')
@ -65,14 +66,14 @@ class ArchiveIndexViewTests(TestCase):
def test_archive_view_template(self):
res = self.client.get('/dates/books/template_name/')
self.assertEqual(res.status_code, 200)
self.assertEqual(res.context['date_list'], Book.objects.dates('pubdate', 'year')[::-1])
self.assertEqual(list(res.context['date_list']), list(Book.objects.dates('pubdate', 'year', 'DESC')))
self.assertEqual(list(res.context['latest']), list(Book.objects.all()))
self.assertTemplateUsed(res, 'generic_views/list.html')
def test_archive_view_template_suffix(self):
res = self.client.get('/dates/books/template_name_suffix/')
self.assertEqual(res.status_code, 200)
self.assertEqual(res.context['date_list'], Book.objects.dates('pubdate', 'year')[::-1])
self.assertEqual(list(res.context['date_list']), list(Book.objects.dates('pubdate', 'year', 'DESC')))
self.assertEqual(list(res.context['latest']), list(Book.objects.all()))
self.assertTemplateUsed(res, 'generic_views/book_detail.html')
@ -82,13 +83,13 @@ class ArchiveIndexViewTests(TestCase):
def test_archive_view_by_month(self):
res = self.client.get('/dates/books/by_month/')
self.assertEqual(res.status_code, 200)
self.assertEqual(res.context['date_list'], Book.objects.dates('pubdate', 'month')[::-1])
self.assertEqual(list(res.context['date_list']), list(Book.objects.dates('pubdate', 'month', 'DESC')))
def test_paginated_archive_view(self):
self._make_books(20, base_date=datetime.date.today())
_make_books(20, base_date=datetime.date.today())
res = self.client.get('/dates/books/paginated/')
self.assertEqual(res.status_code, 200)
self.assertEqual(res.context['date_list'], Book.objects.dates('pubdate', 'year')[::-1])
self.assertEqual(list(res.context['date_list']), list(Book.objects.dates('pubdate', 'year', 'DESC')))
self.assertEqual(list(res.context['latest']), list(Book.objects.all()[0:10]))
self.assertTemplateUsed(res, 'generic_views/book_archive.html')
@ -99,7 +100,7 @@ class ArchiveIndexViewTests(TestCase):
def test_paginated_archive_view_does_not_load_entire_table(self):
# Regression test for #18087
self._make_books(20, base_date=datetime.date.today())
_make_books(20, base_date=datetime.date.today())
# 1 query for years list + 1 query for books
with self.assertNumQueries(2):
self.client.get('/dates/books/')
@ -124,6 +125,13 @@ class ArchiveIndexViewTests(TestCase):
res = self.client.get('/dates/booksignings/')
self.assertEqual(res.status_code, 200)
def test_date_list_order(self):
"""date_list should be sorted descending in index"""
_make_books(5, base_date=datetime.date(2011, 12, 25))
res = self.client.get('/dates/books/')
self.assertEqual(res.status_code, 200)
self.assertEqual(list(res.context['date_list']), list(reversed(sorted(res.context['date_list']))))
class YearArchiveViewTests(TestCase):
fixtures = ['generic-views-test-data.json']
@ -202,6 +210,12 @@ class YearArchiveViewTests(TestCase):
res = self.client.get('/dates/booksignings/2008/')
self.assertEqual(res.status_code, 200)
def test_date_list_order(self):
"""date_list should be sorted ascending in year view"""
_make_books(10, base_date=datetime.date(2011, 12, 25))
res = self.client.get('/dates/books/2011/')
self.assertEqual(list(res.context['date_list']), list(sorted(res.context['date_list'])))
class MonthArchiveViewTests(TestCase):
fixtures = ['generic-views-test-data.json']
@ -322,6 +336,12 @@ class MonthArchiveViewTests(TestCase):
res = self.client.get('/dates/booksignings/2008/apr/')
self.assertEqual(res.status_code, 200)
def test_date_list_order(self):
"""date_list should be sorted ascending in month view"""
_make_books(10, base_date=datetime.date(2011, 12, 25))
res = self.client.get('/dates/books/2011/dec/')
self.assertEqual(list(res.context['date_list']), list(sorted(res.context['date_list'])))
class WeekArchiveViewTests(TestCase):
fixtures = ['generic-views-test-data.json']