#9200: Add a session based form wizard
-----------------------------------------------+----------------------------
Reporter: ddurham | Owner: ddurham
Status: assigned | Milestone:
Component: django.contrib.formtools | Version: SVN
Resolution: | Keywords: session wizard
forms
Stage: Accepted | Has_patch: 1
Needs_docs: 0 | Needs_tests: 0
Needs_better_patch: 0 |
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Comment (by danaspiegel):
I haven't had time to put together a patch (nor am I sure this is the best
way to do this) but here's the code:
{{{
def GET(self, request, page_key):
"""
Initialize a form if necessary, and display the form/page
identified by
page_key.
"""
page_data = self._get_cleaned_data(request, page_key)
if page_data is None:
form = self._get_form_classes(request)[page_key]()
else:
form_class = self._get_form_classes(request)[page_key]
if issubclass(form_class, forms.ModelForm):
# We need to manually create a new instance of the form's
model, since we need to specially handle ManyToMany fields
instance = form_class.Meta.model()
for attribute_name, attribute_value in page_data.items():
if hasattr(instance, attribute_name):
setattr(instance, attribute_name, attribute_value)
if isinstance(attribute_value, base.Model):
# when the related object is a model object,
we need to explicitly set the form field's value
page_data[attribute_name] = attribute_value.pk
elif isinstance(getattr(form_class.Meta.model,
attribute_name), fields.related.ReverseSingleRelatedObjectDescriptor):
page_data[attribute_name] = attribute_value.pk
elif isinstance(getattr(form_class.Meta.model,
attribute_name), fields.related.ReverseManyRelatedObjectsDescriptor):
page_data[attribute_name] = [value.pk for value in
attribute_value]
form = form_class(instance=instance, initial=page_data)
else:
form = form_class(initial=page_data)
return self._show_form(request, page_key, form)
}}}
--
Ticket URL: <http://code.djangoproject.com/ticket/9200#comment:25>
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