Fixed #22684 -- Added `empty_label` option on `django.forms.extras.widets.SelectDateWidget`

Thanks danielsamuels for the report

AUTHORS

@@ -484,6 +484,7 @@ answer newbie questions, and generally made Django that much better:
     oggy <ognjen.maric@gmail.com>
     Tomek Paczkowski <tomek@hauru.eu>
     Jens Page
+    Guillaume Pannatier <guillaume.pannatier@gmail.com>
     Jay Parlar <parlar@gmail.com>
     Carlos Eduardo de Paula <carlosedp@gmail.com>
     John Paulett <john@paulett.org>

django/forms/extras/widgets.py

@@ -48,7 +48,7 @@ class SelectDateWidget(Widget):
     day_field = '%s_day'
     year_field = '%s_year'
 
-    def __init__(self, attrs=None, years=None, months=None):
+    def __init__(self, attrs=None, years=None, months=None, empty_label=None):
         self.attrs = attrs or {}
 
         # Optional list or tuple of years to use in the "year" select box.
@@ -64,6 +64,9 @@ class SelectDateWidget(Widget):
         else:
             self.months = MONTHS
 
+        if empty_label is not None:
+            self.none_value = (0, empty_label)
+
     def render(self, name, value, attrs=None):
         try:
             year_val, month_val, day_val = value.year, value.month, value.day

docs/ref/forms/widgets.txt

@@ -781,3 +781,15 @@ Composite widgets
                 5:_('may'), 6:_('jun'), 7:_('jul'), 8:_('aug'),
                 9:_('sep'), 10:_('oct'), 11:_('nov'), 12:_('dec')
             }
+
+    .. attribute:: SelectDateWidget.empty_label
+
+        .. versionadded:: 1.8
+
+        If the :class:`~django.forms.DateField` is not required,
+        :class:`SelectDateWidget` will have an empty choice at the top of
+        the list. You can change the text of this label
+        (which is ``---`` by default) with the ``empty_label`` attribute::
+
+            # A custom empty label
+            field1 = forms.DateField(widget=SelectDateWidget(empty_label="Nothing"))

docs/releases/1.8.txt

@@ -136,6 +136,10 @@ Forms
   a form's :attr:`~django.forms.Form.label_suffix` while using  shortcuts such
   as ``{{ form.as_p }}`` in templates.
 
+* :class:`~django.forms.extras.widgets.SelectDateWidget` now accepts an
+  :attr:`~django.forms.extras.widgets.SelectDateWidget.empty_label` argument, which will
+  override the top list choice label when :class:`~django.forms.DateField` is not required.
+
 Internationalization
 ^^^^^^^^^^^^^^^^^^^^
 

tests/forms_tests/tests/test_extra.py

@@ -297,6 +297,11 @@ class FormsExtraTestCase(TestCase, AssertFormErrorsMixin):
 <option value="2013">2013</option>
 </select>""")
 
+        w = SelectDateWidget(years=('2014',), empty_label='empty_label')
+
+        # Rendering the default state with empty_label setted.
+        self.assertInHTML('<option value="0">empty_label</option>', w.render('mydate', ''), count=3)
+
         a = GetDate({'mydate_month': '4', 'mydate_day': '1', 'mydate_year': '2008'})
         self.assertTrue(a.is_valid())
         self.assertEqual(a.cleaned_data['mydate'], datetime.date(2008, 4, 1))