Possible EditInPlaceMixin for Django's class-based views. Useful for AJAX requests where on successful POST you render a detail template rather than doing a redirect. Unsuccessful POSTs return the form template as normal but with a 400 response code. Should work with Django's existing FormView and ModelFormView, as well as all the formset-relate…

gistfile1.py

from django.core.exceptions import ImproperlyConfigured


class EditInPlaceMixin(object):
    detail_template_name = None

    def get_detail_template_names(self):
        """
        Returns a list of template names to be used for the request. Must return
        a list. May not be called if render_to_detail_response is overridden.
        """
        if self.detail_template_name is None:
            raise ImproperlyConfigured(
                "EditInPlaceMixin requires either a definition of "
                "'detail_template_name' or an implementation of 'get_detail_template_name()'")
        else:
            return [self.detail_template_name]    

    def render_to_detail_response(self, context, **response_kwargs):
        return self.response_class(
            request = self.request,
            template = [self.detail_template_name],
            context = context,
            **response_kwargs
        )

    def form_valid(self, form):
        try:
            self.object = form.save()
        except AttributeError:
            pass
        return self.render_to_detail_response(self.get_context_data())

    def form_invalid(self, form):
        return self.render_to_response(self.get_context_data(form=form), status_code=400)

    def forms_valid(self, form, formsets):
        try:
            self.object = form.save()
        except AttributeError:
            pass
        for formset in inlines:
            try:
                formset.save()
            except AttributeError:
                pass
        return self.render_to_detail_response(self.get_context_data())

    def forms_invalid(self form, formsets):
        return self.render_to_response(self.get_context_data(form=form, formsets=formsets), status_code=400)

    def formset_valid(self, formset):
        try:
            self.object_list = formset.save()
        except AttributeError:
            pass
        return self.render_to_detail_response(self.get_context_data())

    def formset_invalid(self, formset):
        return self.render_to_response(self.get_context_data(formsets=formsets), status_code=400)