Fixed #13560 -- Fixed localization of widgets.

Particularly this fixes the SplitDateTimeField and the AdminDateWidget by localizating the widget's value in its render method instead of the form field. Thanks to David Danier for the report and Russell for help with the patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@13296 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/forms/widgets.py

@@ -10,7 +10,7 @@ from django.utils.html import escape, conditional_escape
 from django.utils.translation import ugettext
 from django.utils.encoding import StrAndUnicode, force_unicode
 from django.utils.safestring import mark_safe
-from django.utils import formats
+from django.utils import datetime_safe, formats
 import time
 import datetime
 from util import flatatt
@@ -133,6 +133,7 @@ class Widget(object):
     __metaclass__ = MediaDefiningClass
     is_hidden = False          # Determines whether this corresponds to an <input type="hidden">.
     needs_multipart_form = False # Determines does this widget need multipart-encrypted form
+    is_localized = False
 
     def __init__(self, attrs=None):
         if attrs is not None:
@@ -208,12 +209,18 @@ class Input(Widget):
     """
     input_type = None # Subclasses must define this.
 
+    def _format_value(self, value):
+        if self.is_localized:
+            return formats.localize_input(value)
+        return value
+
     def render(self, name, value, attrs=None):
-        if value is None: value = ''
+        if value is None:
+            value = ''
         final_attrs = self.build_attrs(attrs, type=self.input_type, name=name)
         if value != '':
             # Only add the 'value' attribute if a value is non-empty.
-            final_attrs['value'] = force_unicode(value)
+            final_attrs['value'] = force_unicode(self._format_value(value))
         return mark_safe(u'<input%s />' % flatatt(final_attrs))
 
 class TextInput(Input):
@@ -295,7 +302,7 @@ class Textarea(Widget):
 
 class DateInput(Input):
     input_type = 'text'
-    format = None
+    format = '%Y-%m-%d'     # '2006-10-25'
 
     def __init__(self, attrs=None, format=None):
         super(DateInput, self).__init__(attrs)
@@ -303,16 +310,13 @@ class DateInput(Input):
             self.format = format
 
     def _format_value(self, value):
-        if value is None:
-            return ''
+        if self.is_localized:
+            return formats.localize_input(value)
         elif hasattr(value, 'strftime'):
-            return formats.localize_input(value, self.format)
+            value = datetime_safe.new_date(value)
+            return value.strftime(self.format)
         return value
 
-    def render(self, name, value, attrs=None):
-        value = self._format_value(value)
-        return super(DateInput, self).render(name, value, attrs)
-
     def _has_changed(self, initial, data):
         # If our field has show_hidden_initial=True, initial will be a string
         # formatted by HiddenInput using formats.localize_input, which is not
@@ -326,7 +330,7 @@ class DateInput(Input):
 
 class DateTimeInput(Input):
     input_type = 'text'
-    format = None
+    format = '%Y-%m-%d %H:%M:%S'     # '2006-10-25 14:30:59'
 
     def __init__(self, attrs=None, format=None):
         super(DateTimeInput, self).__init__(attrs)
@@ -334,16 +338,13 @@ class DateTimeInput(Input):
             self.format = format
 
     def _format_value(self, value):
-        if value is None:
-            return ''
+        if self.is_localized:
+            return formats.localize_input(value)
         elif hasattr(value, 'strftime'):
-            return formats.localize_input(value, self.format)
+            value = datetime_safe.new_datetime(value)
+            return value.strftime(self.format)
         return value
 
-    def render(self, name, value, attrs=None):
-        value = self._format_value(value)
-        return super(DateTimeInput, self).render(name, value, attrs)
-
     def _has_changed(self, initial, data):
         # If our field has show_hidden_initial=True, initial will be a string
         # formatted by HiddenInput using formats.localize_input, which is not
@@ -357,7 +358,7 @@ class DateTimeInput(Input):
 
 class TimeInput(Input):
     input_type = 'text'
-    format = None
+    format = '%H:%M:%S'     # '14:30:59'
 
     def __init__(self, attrs=None, format=None):
         super(TimeInput, self).__init__(attrs)
@@ -365,16 +366,12 @@ class TimeInput(Input):
             self.format = format
 
     def _format_value(self, value):
-        if value is None:
-            return ''
+        if self.is_localized:
+            return formats.localize_input(value)
         elif hasattr(value, 'strftime'):
-            return formats.localize_input(value, self.format)
+            return value.strftime(self.format)
         return value
 
-    def render(self, name, value, attrs=None):
-        value = self._format_value(value)
-        return super(TimeInput, self).render(name, value, attrs)
-
     def _has_changed(self, initial, data):
         # If our field has show_hidden_initial=True, initial will be a string
         # formatted by HiddenInput using formats.localize_input, which is not
@@ -674,6 +671,9 @@ class MultiWidget(Widget):
         super(MultiWidget, self).__init__(attrs)
 
     def render(self, name, value, attrs=None):
+        if self.is_localized:
+            for widget in self.widgets:
+                widget.is_localized = self.is_localized
         # value is a list of values, each corresponding to a widget
         # in self.widgets.
         if not isinstance(value, list):