views.py 文件源码

def post(self, **kwargs):
        """Get statistics."""
        data = request.get_json(force=False)
        if data is None:
            data = {}
        result = {}
        for query_name, config in data.items():
            if config is None or not isinstance(config, dict) \
                    or (set(config.keys()) != {'stat', 'params'} and
                        set(config.keys()) != {'stat'}):
                raise InvalidRequestInputError(
                    'Invalid Input. It should be of the form '
                    '{ STATISTIC_NAME: { "stat": STAT_TYPE, '
                    '"params": STAT_PARAMS \}}'
                )
            stat = config['stat']
            params = config.get('params', {})
            try:
                query_cfg = current_stats.queries[stat]
            except KeyError:
                raise UnknownQueryError(stat)

            permission = current_stats.permission_factory(stat, params)
            if permission is not None and not permission.can():
                message = ('You do not have a permission to query the '
                           'statistic "{}" with those '
                           'parameters'.format(stat))
                if current_user.is_authenticated:
                    abort(403, message)
                abort(401, message)
            try:
                query = query_cfg.query_class(**query_cfg.query_config)
                result[query_name] = query.run(**params)
            except ValueError as e:
                raise InvalidRequestInputError(e.args[0])
            except NotFoundError as e:
                return None
        return self.make_response(result)