views.py 文件源码

def _get_volume_types(self):
        try:
            volume_types = cinder.volume_type_list(self.request)
        except Exception:
            exceptions.handle(self.request,
                              _('Unable to retrieve volume type list.'))

        # check if we have default volume type so we can present the
        # description of no volume type differently
        no_type_description = None
        if self.default_vol_type is None:
            message = \
                _("If \"No volume type\" is selected, the volume will be "
                  "created without a volume type.")

            no_type_description = encoding.force_text(message)

        type_descriptions = [{'name': 'no_type',
                              'description': no_type_description}] + \
                            [{'name': type.name,
                              'description': getattr(type, "description", "")}
                             for type in volume_types]

        return json.dumps(type_descriptions)