Ticket #11726: django-11726.diff

django/contrib/formtools/wizard.py

@@ -64 +64 @@
         current_step = self.determine_step(request, *args, **kwargs)
         self.parse_params(request, *args, **kwargs)
 
-        # Sanity check.
-        if current_step >= self.num_steps():
-            raise Http404('Step %s does not exist' % current_step)
-
         # For each previous step, verify the hash and process.
         # TODO: Move "hash_%d" to a method to make it configurable.
         for i in range(current_step):
@@ -83 +79 @@
         else:
             form = self.get_form(current_step)
         if form.is_valid():
+            # Sanity check.
+            if current_step >= self.num_steps():
+                raise Http404('Step %s does not exist' % current_step)
+
             self.process_step(request, form, current_step)
             next_step = current_step + 1