Ticket #17165: 1.3.X.diff

django/forms/extras/widgets.py

@@ -139 +139 @@
         s = Select(choices=choices)
         select_html = s.render(field % name, val, local_attrs)
         return select_html
+
+    def _has_changed(self, initial, data):
+        input_format = get_format('DATE_INPUT_FORMATS')[0]
+        data = datetime_safe.datetime(*(time.strptime(data, input_format)[0:6])).date()
+        return super(SelectDateWidget, self)._has_changed(initial, data)

tests/regressiontests/forms/tests/extra.py

@@ -9 +9 @@
 from django.utils import unittest
 from django.utils.encoding import force_unicode
 from django.utils.encoding import smart_unicode
+from django.utils.formats import get_format
 from error_messages import AssertFormErrorsMixin
 
 class GetDate(Form):
@@ -610 +611 @@
 <option value="2016">2016</option>
 </select>""")
 
+        # _has_changed works correctly with a localized date format
+        input_format = get_format('DATE_INPUT_FORMATS')[0]
+        today = datetime.date.today()
+        today_l10n = today.strftime(input_format)
+        tomorrow = today + datetime.timedelta(days=1)
+        self.assertEqual(w._has_changed(today, today_l10n), False)
+        self.assertEqual(w._has_changed(tomorrow, today_l10n), True)
+
         # Years before 1900 work
         w = SelectDateWidget(years=('1899',))
         self.assertEqual(w.value_from_datadict({'date_year': '1899', 'date_month': '8', 'date_day': '13'}, {}, 'date'), '13-08-1899')