data_serializer.py 文件源码

def to_representation(self, obj):
        request = self.context.get('request')

        if not isinstance(obj, XForm):
            return super(DataListSerializer, self).to_representation(obj)

        query_params = (request and request.query_params) or {}
        query = {
            ParsedInstance.USERFORM_ID:
            u'%s_%s' % (obj.user.username, obj.id_string)
        }

        try:
            query.update(json.loads(query_params.get('query', '{}')))
        except ValueError:
            raise ParseError(_("Invalid query: %(query)s"
                             % {'query': query_params.get('query')}))

        query_kwargs = {
            'query': json.dumps(query),
            'fields': query_params.get('fields'),
            'sort': query_params.get('sort')
        }
        cursor = ParsedInstance.query_mongo_minimal(**query_kwargs)
        return list(cursor)