Tomek Wójcik
8b86145519
A journey to fix `ValidationError` in Pocket imports turned service layer refactoring :D
90 lines
2.5 KiB
Python
90 lines
2.5 KiB
Python
# -*- coding: utf-8 -*-
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from __future__ import annotations
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import typing
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from hotpocket_soa.constants import BackendServiceErrorCode
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if typing.TYPE_CHECKING:
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from django.core.exceptions import ValidationError
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VALIDATION_CODE_INVALID = 'invalid'
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def get_validation_error_data(validation_error: typing.Any) -> typing.Any: # Heh
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if hasattr(validation_error, 'error_dict') is True:
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return {
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field: [
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get_validation_error_data(inner_error)
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for inner_error
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in inner_errors
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]
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for field, inner_errors in validation_error.error_dict.items()
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}
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elif hasattr(validation_error, 'error_list') is True and len(validation_error.error_list) > 1:
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return [
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get_validation_error_data(inner_error)
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for inner_error
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in validation_error.error_list
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]
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elif hasattr(validation_error, 'code') is True:
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return validation_error.code
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elif isinstance(validation_error, (tuple, list)) is True:
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return [
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get_validation_error_data(inner_error)
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for inner_error
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in validation_error
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]
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elif isinstance(validation_error, dict) is True:
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return {
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field: [
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get_validation_error_data(inner_error)
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for inner_error
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in inner_errors
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]
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for field, inner_errors in validation_error.items()
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}
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else:
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return VALIDATION_CODE_INVALID
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class BackendServiceError(Exception):
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CODE = BackendServiceErrorCode.INTERNAL
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def __init__(self, message: str, *args):
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super().__init__(message, *args)
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self.message = message
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self.data: typing.Any = None
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if len(args) > 0:
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self.data = args[0]
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class InternalError(BackendServiceError):
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pass
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class NotFound(BackendServiceError):
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CODE = BackendServiceErrorCode.NOT_FOUND
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class AccessDenied(BackendServiceError):
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CODE = BackendServiceErrorCode.ACCESS_DENIED
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class Invalid(BackendServiceError):
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CODE = BackendServiceErrorCode.INVALID
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@classmethod
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def from_django_validation_error(cls: type[typing.Self],
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exception: ValidationError,
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message: str | None = None,
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) -> typing.Self:
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data = get_validation_error_data(exception)
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result = cls(message or 'Invalid', data)
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result.__cause__ = exception
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return result
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