Ticket #11404: formset-has-changed.diff

django/forms/formsets.py

@@ -263 +263 @@
         """
         pass
 
+    def has_changed(self):
+        """
+        Returns true if data in any form differs from initial.
+        """
+        for form in self.forms:
+            if form.has_changed():
+                return True
+        return False
+
     def add_fields(self, form, index):
         """A hook for adding extra fields on to each form instance."""
         if self.can_order: