api.py 文件源码

def get_pagination_options(params, default):
    try:
        opts = voluptuous.Schema({
            voluptuous.Required(
                "limit", default=pecan.request.conf.api.max_limit):
            voluptuous.All(voluptuous.Coerce(int),
                           voluptuous.Range(min=1),
                           voluptuous.Clamp(
                               min=1, max=pecan.request.conf.api.max_limit)),
            "marker": six.text_type,
            voluptuous.Required("sort", default=default):
            voluptuous.All(
                voluptuous.Coerce(arg_to_list),
                [six.text_type]),
        }, extra=voluptuous.REMOVE_EXTRA)(params)
    except voluptuous.Invalid as e:
        abort(400, {"cause": "Argument value error",
                    "reason": str(e)})
    opts['sorts'] = opts['sort']
    del opts['sort']
    return opts