Ticket #3515: forms.2.diff

django/newforms/forms.py

@@ -167 +167 @@
                 if hasattr(self, 'clean_%s' % name):
                     value = getattr(self, 'clean_%s' % name)()
                 self.clean_data[name] = value
+                # Revert field css class back to initial value
+                if field.widget.attrs.has_key('class'):
+                    if field.css:
+                        field.widget.attrs.update({'class': str(field.css)})
+                    else:
+                        del field.widget.attrs['class']
             except ValidationError, e:
                 errors[name] = e.messages
+                # Prepend 'error' to field css class
+                field.widget.attrs.update({'class': ('error ' + str(field.css)).rstrip()})
         try:
             self.clean_data = self.clean()
         except ValidationError, e: