47 lines
1.2 KiB
Python
47 lines
1.2 KiB
Python
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from functools import wraps
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import logging
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from typing import Callable, ParamSpec, Tuple, Union
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from werkzeug.wrappers.response import Response
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from .error import error
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logger = logging.getLogger(__name__)
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# Decorator type hinting is hard.
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# What a view can return (str or Response or (Response, xxx))
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ViewReturn = Union[
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str,
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Response,
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Tuple[str | Response, int]
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]
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# View signature (*arg, **kwargs -> (str or Response or (Response, xxx))
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P = ParamSpec('P')
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ViewCallable = Callable[P, ViewReturn]
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# Return the exception template or response if an exception occured
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def exception_handler(
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file: str,
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/,
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json: bool = False,
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post_redirect: str | None = None
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) -> Callable[[ViewCallable], ViewCallable]:
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def outer(function: ViewCallable, /) -> ViewCallable:
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@wraps(function)
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def wrapper(*args, **kwargs) -> ViewReturn:
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try:
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return function(*args, **kwargs)
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# Catch SQLite errors as database errors
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except Exception as e:
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return error(
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e,
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file,
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json=json,
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post_redirect=post_redirect,
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**kwargs,
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)
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return wrapper
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return outer
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