Support form wizard

Hi,

It would be nice if django-crispy-forms could handle form wizards this way :

{% crispy wizard helper %}

Thanks for this great lib!

Olivier

[yekibud]

Here’s some code:

class WizardButton(StrictButton):

    def __init__(self, content, **kwargs):
        kwargs.setdefault('type', 'submit')
        super(WizardButton, self).__init__(content, **kwargs)


class PrevButton(WizardButton):
    step = 'prev'

    def __init__(self, content, **kwargs):
        kwargs['name'] = 'wizard_goto_step'
        super(PrevButton, self).__init__(content, **kwargs)


class NextButton(WizardButton):
    step = 'next'


class FinishButton(WizardButton):
    step = 'finish'


class WizardNavigation(ButtonHolder):
    """
    Layout object for rendering form wizard Previous, Next and Finish buttons::

        Button("button content", css_class="extra")
        WizardNavigation(
            PrevButton('Previous'), NextButton('Next'), FinishButton('Finish')
        )
    """
    template = '%s/layout/wizard_navigation.html' % TEMPLATE_PACK

    def render(self, form, form_style, context, template_pack=TEMPLATE_PACK):
        buttons = {'extra': []} 
        for field in self.fields:
            if getattr(field, 'step', None) == 'prev': 
                buttons['prev'] = field
            elif getattr(field, 'step', None) == 'next': 
                buttons['next'] = field
            elif getattr(field, 'step', None) == 'finish': 
                buttons['finish'] = field
            else:
                buttons['extra'].append(field)

        return render_to_string(
            self.template, 
            Context({
                'buttonholder': self,
                'buttons': buttons,
                'wizard': context['wizard'],
            }),
        )

[carltongibson]

I’m going to close this as Out of Scope for the moment. Happy to consider documented, tested pull requests. We may have capacity to reconsider in the future.