Fixed #4228 -- Removed hardcoding of RadioFieldRenderer in the RadioSelect Widget so that the display of RadioSelects can be more easily customized. BoundField.__unicode__ also no longer special cases RadioSelect since RadioSelect.render() now returns a string like every other Widget.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@5782 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/newforms/widgets.py

@@ -216,7 +216,11 @@ class SelectMultiple(Widget):
         return data.get(name, None)
 
 class RadioInput(StrAndUnicode):
-    "An object used by RadioFieldRenderer that represents a single <input type='radio'>."
+    """
+    An object used by RadioFieldRenderer that represents a single
+    <input type='radio'>.
+    """
+
     def __init__(self, name, value, attrs, choice, index):
         self.name, self.value = name, value
         self.attrs = attrs
@@ -239,7 +243,10 @@ class RadioInput(StrAndUnicode):
         return u'<input%s />' % flatatt(final_attrs)
 
 class RadioFieldRenderer(StrAndUnicode):
-    "An object used by RadioSelect to enable customization of radio widgets."
+    """
+    An object used by RadioSelect to enable customization of radio widgets.
+    """
+
     def __init__(self, name, value, attrs, choices):
         self.name, self.value, self.attrs = name, value, attrs
         self.choices = choices
@@ -253,16 +260,30 @@ class RadioFieldRenderer(StrAndUnicode):
         return RadioInput(self.name, self.value, self.attrs.copy(), choice, idx)
 
     def __unicode__(self):
-        "Outputs a <ul> for this set of radio fields."
+        return self.render()
+
+    def render(self):
+        """Outputs a <ul> for this set of radio fields."""
         return u'<ul>\n%s\n</ul>' % u'\n'.join([u'<li>%s</li>' % force_unicode(w) for w in self])
 
 class RadioSelect(Select):
-    def render(self, name, value, attrs=None, choices=()):
-        "Returns a RadioFieldRenderer instance rather than a Unicode string."
+
+    def __init__(self, *args, **kwargs):
+        self.renderer = kwargs.pop('renderer', None)
+        if not self.renderer:
+            self.renderer = RadioFieldRenderer
+        super(RadioSelect, self).__init__(*args, **kwargs)
+
+    def get_renderer(self, name, value, attrs=None, choices=()):
+        """Returns an instance of the renderer."""
         if value is None: value = ''
         str_value = force_unicode(value) # Normalize to string.
         final_attrs = self.build_attrs(attrs)
-        return RadioFieldRenderer(name, str_value, final_attrs, list(chain(self.choices, choices)))
+        choices = list(chain(self.choices, choices))
+        return self.renderer(name, str_value, final_attrs, choices)
+
+    def render(self, name, value, attrs=None, choices=()):
+        return self.get_renderer(name, value, attrs, choices).render()
 
     def id_for_label(self, id_):
         # RadioSelect is represented by multiple <input type="radio"> fields,