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Added an example of using a form wizard with different templates; thanks Lorin Hochstein for the patch.
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@ -155,7 +155,8 @@ or the
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:meth:`~django.views.generic.base.TemplateResponseMixin.get_template_names()`
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method, which are documented in the
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:class:`~django.views.generic.base.TemplateResponseMixin` documentation. The
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latter one allows you to use a different template for each form.
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latter one allows you to use a different template for each form (:ref:`see the
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example below <wizard-template-for-each-form>`).
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This template expects a ``wizard`` object that has various items attached to
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it:
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@ -238,6 +239,65 @@ wizard's :meth:`as_view` method takes a list of your
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(r'^contact/$', ContactWizard.as_view([ContactForm1, ContactForm2])),
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)
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.. _wizard-template-for-each-form:
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Using a different template for each form
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----------------------------------------
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As mentioned above, you may specify a different template for each form.
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Consider an example using a form wizard to implement a multi-step checkout
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process for an online store. In the first step, the user specifies a billing
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and shipping address. In the second step, the user chooses payment type. If
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they chose to pay by credit card, they will enter credit card information in
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the next step. In the final step, they will confirm the purchase.
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Here's what the view code might look like::
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from django.http import HttpResponseRedirect
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from django.contrib.formtools.wizard.views import SessionWizardView
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FORMS = [("address", myapp.forms.AddressForm),
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("paytype", myapp.forms.PaymentChoiceForm),
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("cc", myapp.forms.CreditCardForm),
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("confirmation", myapp.forms.OrderForm)]
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TEMPLATES = {"address": "checkout/billingaddress.html",
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"paytype": "checkout/paymentmethod.html",
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"cc": "checkout/creditcard.html",
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"confirmation": "checkout/confirmation.html"}
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def pay_by_credit_card(wizard):
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"""Return true if user opts to pay by credit card"""
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# Get cleaned data from payment step
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cleaned_data = wizard.get_cleaned_data_for_step('paytype') or {'method': 'none'}
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# Return true if the user selected credit card
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return cleaned_data['method'] == 'cc'
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class OrderWizard(SessionWizardView):
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def get_template_names(self):
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return [TEMPLATES[self.steps.current]]
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def done(self, form_list, **kwargs):
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do_something_with_the_form_data(form_list)
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return HttpResponseRedirect('/page-to-redirect-to-when-done/')
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...
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The ``urls.py`` file would contain something like::
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urlpatterns = patterns('',
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(r'^checkout/$', OrderWizard.as_view(FORMS, condition_dict={'cc': pay_by_credit_card})),
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)
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Note that the ``OrderWizard`` object is initialized with a list of pairs.
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The first element in the pair is a string that corresponds to the name of the
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step and the second is the form class.
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In this example, the
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:meth:`~django.views.generic.base.TemplateResponseMixin.get_template_names()`
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method returns a list containing a single template, which is selected based on
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the name of the current step.
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.. _wizardview-advanced-methods:
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Advanced ``WizardView`` methods
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