Ticket #8556: 74333.patch

django/db/models/fields/__init__.py

@@ -394 +394 @@
 
 # TODO: Maybe move this into contrib, because it's specialized.
 class CommaSeparatedIntegerField(CharField):
-    pass
+    def formfield(self, **kwargs):
+        defaults = {
+            'form_class': forms.RegexField,
+            'regex': '^[\d,]*$',
+            'max_length': self.max_length,
+        }
+        defaults.update(kwargs)
+        return defaults
 
 ansi_date_re = re.compile(r'^\d{4}-\d{1,2}-\d{1,2}$')