Ticket #17162: 17162.diff

docs/ref/contrib/formtools/form-wizard.txt

@@ -318 +318 @@
         def get_wizard_name(self):
             return normalize_name(self.__class__.__name__)
 
-.. method:: WizardView.get_prefix()
+.. method:: WizardView.get_prefix(request, *args, **kwargs)
 
-    This method returns a prefix for the storage backends. These backends use
-    the prefix to fetch the correct data for the wizard. (Multiple wizards
-    could save their data in one session)
+    This method returns a prefix for use by the storage backends. Backends use
+    the prefix as a mechanism to allow data to be stored separately for each
+    wizard. This allows wizards to store their data in a single backend
+    without overwriting each other.
 
     You can change this method to make the wizard data prefix more unique to,
     e.g. have multiple instances of one wizard in one session.
 
     Default implementation::
 
-        def get_prefix(self):
-            return self.wizard_name
+        def get_prefix(self, request, *args, **kwargs):
+            # use the lowercase underscore version of the class name
+            return normalize_name(self.__class__.__name__)
 
 .. method:: WizardView.get_form(step=None, data=None, files=None)
 

django/contrib/formtools/wizard/views.py

@@ -14 +14 @@
 
 
 def normalize_name(name):
+    """
+    Converts camel-case style names into underscore seperated words. Example::
+
+        >>> normalize_name('oneTwoThree')
+        'one_two_three'
+        >>> normalize_name('FourFiveSix')
+        'four_five_six'
+
+    """
     new = re.sub('(((?<=[a-z])[A-Z])|([A-Z](?![A-Z]|$)))', '_\\1', name)
     return new.lower().strip('_')
 
@@ -169 +178 @@
         kwargs['form_list'] = init_form_list
         return kwargs
 
-    def get_wizard_name(self):
+    def get_prefix(self, request, *args, **kwargs):
+        # TODO: Add some kind of unique id to prefix
         return normalize_name(self.__class__.__name__)
 
-    def get_prefix(self):
-        # TODO: Add some kind of unique id to prefix
-        return self.wizard_name
-
     def get_form_list(self):
         """
         This method returns a form_list based on the initial form list but
@@ -210 +216 @@
         response gets updated by the storage engine (for example add cookies).
         """
         # add the storage engine to the current formwizard instance
-        self.wizard_name = self.get_wizard_name()
-        self.prefix = self.get_prefix()
+        self.prefix = self.get_prefix(request, *args, **kwargs)
         self.storage = get_storage(self.storage_name, self.prefix, request,
             getattr(self, 'file_storage', None))
         self.steps = StepsHelper(self)
@@ -683 +688 @@
     A NamedUrlFormWizard with pre-configured CookieStorageBackend.
     """
     storage_name = 'django.contrib.formtools.wizard.storage.cookie.CookieStorage'
-