mirror of https://github.com/django/django.git
Fixed #16218 -- date_list order in generic CBVs.
Thanks nnrcschmdt for the report and bpeschier for the initial version of the patch.
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@ -377,7 +377,7 @@ class BaseDateListView(MultipleObjectMixin, DateMixin, View):
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"""
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return self.date_list_period
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def get_date_list(self, queryset, date_type=None):
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def get_date_list(self, queryset, date_type=None, ordering='ASC'):
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"""
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Get a date list by calling `queryset.dates()`, checking along the way
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for empty lists that aren't allowed.
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@ -387,7 +387,7 @@ class BaseDateListView(MultipleObjectMixin, DateMixin, View):
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if date_type is None:
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date_type = self.get_date_list_period()
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date_list = queryset.dates(date_field, date_type)[::-1]
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date_list = queryset.dates(date_field, date_type, ordering)
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if date_list is not None and not date_list and not allow_empty:
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name = force_text(queryset.model._meta.verbose_name_plural)
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raise Http404(_("No %(verbose_name_plural)s available") %
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@ -409,7 +409,7 @@ class BaseArchiveIndexView(BaseDateListView):
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Return (date_list, items, extra_context) for this request.
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"""
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qs = self.get_dated_queryset(ordering='-%s' % self.get_date_field())
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date_list = self.get_date_list(qs)
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date_list = self.get_date_list(qs, ordering='DESC')
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if not date_list:
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qs = qs.none()
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@ -318,12 +318,16 @@ BaseDateListView
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Returns the aggregation period for ``date_list``. Returns
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:attr:`~BaseDateListView.date_list_period` by default.
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.. method:: get_date_list(queryset, date_type=None)
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.. method:: get_date_list(queryset, date_type=None, ordering='ASC')
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Returns the list of dates of type ``date_type`` for which ``queryset``
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contains entries. For example, ``get_date_list(qs, 'year')`` will
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return the list of years for which ``qs`` has entries. If
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``date_type`` isn't provided, the result of
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:meth:`BaseDateListView.get_date_list_period` is used. See
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:meth:`~django.db.models.query.QuerySet.dates()` for the ways that the
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``date_type`` argument can be used.
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:meth:`~BaseDateListView.get_date_list_period` is used. ``date_type``
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and ``ordering`` are simply passed to
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:meth:`QuerySet.dates()<django.db.models.query.QuerySet.dates>`.
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.. versionchanged:: 1.5
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The ``ordering`` parameter was added, and the default order was
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changed to ascending.
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@ -152,6 +152,21 @@ year|date:"Y" }}``.
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``next_year`` and ``previous_year`` were also added in the context. They are
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calculated according to ``allow_empty`` and ``allow_future``.
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Context in year and month archive class-based views
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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:class:`~django.views.generic.dates.YearArchiveView` and
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:class:`~django.views.generic.dates.MonthArchiveView` were documented to
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provide a ``date_list`` sorted in ascending order in the context, like their
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function-based predecessors, but it actually was in descending order. In 1.5,
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the documented order was restored. You may want to add (or remove) the
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``reversed`` keyword when you're iterating on ``date_list`` in a template::
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{% for date in date_list reversed %}
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:class:`~django.views.generic.dates.ArchiveIndexView` still provides a
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``date_list`` in descending order.
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Context in TemplateView
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~~~~~~~~~~~~~~~~~~~~~~~
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@ -23,29 +23,30 @@ requires_tz_support = skipUnless(TZ_SUPPORT,
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"time zone, but your operating system isn't able to do that.")
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class ArchiveIndexViewTests(TestCase):
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fixtures = ['generic-views-test-data.json']
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urls = 'regressiontests.generic_views.urls'
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def _make_books(self, n, base_date):
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def _make_books(n, base_date):
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for i in range(n):
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b = Book.objects.create(
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name='Book %d' % i,
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slug='book-%d' % i,
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pages=100+i,
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pubdate=base_date - datetime.timedelta(days=1))
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pubdate=base_date - datetime.timedelta(days=i))
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class ArchiveIndexViewTests(TestCase):
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fixtures = ['generic-views-test-data.json']
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urls = 'regressiontests.generic_views.urls'
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def test_archive_view(self):
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res = self.client.get('/dates/books/')
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self.assertEqual(res.status_code, 200)
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self.assertEqual(res.context['date_list'], Book.objects.dates('pubdate', 'year')[::-1])
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self.assertEqual(list(res.context['date_list']), list(Book.objects.dates('pubdate', 'year', 'DESC')))
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self.assertEqual(list(res.context['latest']), list(Book.objects.all()))
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self.assertTemplateUsed(res, 'generic_views/book_archive.html')
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def test_archive_view_context_object_name(self):
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res = self.client.get('/dates/books/context_object_name/')
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self.assertEqual(res.status_code, 200)
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self.assertEqual(res.context['date_list'], Book.objects.dates('pubdate', 'year')[::-1])
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self.assertEqual(list(res.context['date_list']), list(Book.objects.dates('pubdate', 'year', 'DESC')))
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self.assertEqual(list(res.context['thingies']), list(Book.objects.all()))
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self.assertFalse('latest' in res.context)
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self.assertTemplateUsed(res, 'generic_views/book_archive.html')
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@ -65,14 +66,14 @@ class ArchiveIndexViewTests(TestCase):
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def test_archive_view_template(self):
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res = self.client.get('/dates/books/template_name/')
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self.assertEqual(res.status_code, 200)
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self.assertEqual(res.context['date_list'], Book.objects.dates('pubdate', 'year')[::-1])
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self.assertEqual(list(res.context['date_list']), list(Book.objects.dates('pubdate', 'year', 'DESC')))
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self.assertEqual(list(res.context['latest']), list(Book.objects.all()))
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self.assertTemplateUsed(res, 'generic_views/list.html')
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def test_archive_view_template_suffix(self):
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res = self.client.get('/dates/books/template_name_suffix/')
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self.assertEqual(res.status_code, 200)
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self.assertEqual(res.context['date_list'], Book.objects.dates('pubdate', 'year')[::-1])
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self.assertEqual(list(res.context['date_list']), list(Book.objects.dates('pubdate', 'year', 'DESC')))
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self.assertEqual(list(res.context['latest']), list(Book.objects.all()))
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self.assertTemplateUsed(res, 'generic_views/book_detail.html')
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@ -82,13 +83,13 @@ class ArchiveIndexViewTests(TestCase):
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def test_archive_view_by_month(self):
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res = self.client.get('/dates/books/by_month/')
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self.assertEqual(res.status_code, 200)
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self.assertEqual(res.context['date_list'], Book.objects.dates('pubdate', 'month')[::-1])
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self.assertEqual(list(res.context['date_list']), list(Book.objects.dates('pubdate', 'month', 'DESC')))
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def test_paginated_archive_view(self):
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self._make_books(20, base_date=datetime.date.today())
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_make_books(20, base_date=datetime.date.today())
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res = self.client.get('/dates/books/paginated/')
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self.assertEqual(res.status_code, 200)
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self.assertEqual(res.context['date_list'], Book.objects.dates('pubdate', 'year')[::-1])
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self.assertEqual(list(res.context['date_list']), list(Book.objects.dates('pubdate', 'year', 'DESC')))
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self.assertEqual(list(res.context['latest']), list(Book.objects.all()[0:10]))
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self.assertTemplateUsed(res, 'generic_views/book_archive.html')
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@ -99,7 +100,7 @@ class ArchiveIndexViewTests(TestCase):
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def test_paginated_archive_view_does_not_load_entire_table(self):
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# Regression test for #18087
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self._make_books(20, base_date=datetime.date.today())
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_make_books(20, base_date=datetime.date.today())
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# 1 query for years list + 1 query for books
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with self.assertNumQueries(2):
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self.client.get('/dates/books/')
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@ -124,6 +125,13 @@ class ArchiveIndexViewTests(TestCase):
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res = self.client.get('/dates/booksignings/')
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self.assertEqual(res.status_code, 200)
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def test_date_list_order(self):
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"""date_list should be sorted descending in index"""
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_make_books(5, base_date=datetime.date(2011, 12, 25))
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res = self.client.get('/dates/books/')
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self.assertEqual(res.status_code, 200)
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self.assertEqual(list(res.context['date_list']), list(reversed(sorted(res.context['date_list']))))
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class YearArchiveViewTests(TestCase):
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fixtures = ['generic-views-test-data.json']
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@ -202,6 +210,12 @@ class YearArchiveViewTests(TestCase):
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res = self.client.get('/dates/booksignings/2008/')
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self.assertEqual(res.status_code, 200)
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def test_date_list_order(self):
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"""date_list should be sorted ascending in year view"""
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_make_books(10, base_date=datetime.date(2011, 12, 25))
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res = self.client.get('/dates/books/2011/')
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self.assertEqual(list(res.context['date_list']), list(sorted(res.context['date_list'])))
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class MonthArchiveViewTests(TestCase):
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fixtures = ['generic-views-test-data.json']
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@ -322,6 +336,12 @@ class MonthArchiveViewTests(TestCase):
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res = self.client.get('/dates/booksignings/2008/apr/')
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self.assertEqual(res.status_code, 200)
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def test_date_list_order(self):
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"""date_list should be sorted ascending in month view"""
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_make_books(10, base_date=datetime.date(2011, 12, 25))
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res = self.client.get('/dates/books/2011/dec/')
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self.assertEqual(list(res.context['date_list']), list(sorted(res.context['date_list'])))
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class WeekArchiveViewTests(TestCase):
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fixtures = ['generic-views-test-data.json']
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