common.py 文件源码

def check(*callback_tuples):
    """
    Voluptuous wrapper function to raise our APIException

    Args:
        callback_tuples: a callback_tuple should contain (status, msg, callbacks)
    Returns:
        Returns a function callback for the Schema
    """

    def v(value):
        """
        Trys to validate the value with the given callbacks.

        Args:
            value: the item to validate
        Raises:
            APIException with the given error code and msg.
        Returns:
            The value if the validation callbacks are satisfied.
        """

        for msg, callbacks in callback_tuples:
            for callback in callbacks:
                try:
                    result = callback(value)
                    if not result and type(result) == bool:
                        raise Invalid()
                except Exception:
                    raise WebException(msg)
        return value
    return v