Updates Request object with flows forms.

def update_request(self, request, form):
        """Updates Request object with flows forms."""
        forms_key = '%s_forms' % self.flow_type

        # Use ordered forms dict in case _formNode wants to fetch the first defined.
        flow_dict = OrderedDict()
        try:
            flow_dict = request.sitegate[forms_key]
        except AttributeError:
            request.sitegate = {}
        except KeyError:
            pass

        flow_dict[self.get_flow_name()] = form
        request.sitegate[forms_key] = flow_dict