MaxKB/apps/common/handle/handle_exception.py

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# coding=utf-8
"""
@project: qabot
@Author
@file handle_exception.py
@date2023/9/5 19:29
@desc:
"""
import django.core.exceptions
from psycopg2 import IntegrityError
from rest_framework.exceptions import ValidationError, ErrorDetail, APIException
from rest_framework.views import exception_handler
from common.exception.app_exception import AppApiException
from common.response import result
import traceback
def to_result(key, args, parent_key=None):
"""
将校验异常 args转换为统一数据
:param key: 校验key
:param args: 校验异常参数
:param parent_key 父key
:return: 接口响应对象
"""
error_detail = list(filter(
lambda d: True if isinstance(d, ErrorDetail) else True if isinstance(d, dict) and len(
d.keys()) > 0 else False,
(args[0] if len(args) > 0 else {key: [ErrorDetail('未知异常', code='unknown')]}).get(key)))[0]
if isinstance(error_detail, dict):
return list(map(lambda k: to_result(k, args=[error_detail],
parent_key=key if parent_key is None else parent_key + '.' + key),
error_detail.keys() if len(error_detail) > 0 else []))[0]
return result.Result(500 if isinstance(error_detail.code, str) else error_detail.code,
message=f"{key if parent_key is None else parent_key + '.' + key}】为必填参数" if str(
error_detail) == "This field is required." else f"{key if parent_key is None else parent_key + '.' + key}" + error_detail)
def validation_error_to_result(exc: ValidationError):
"""
校验异常转响应对象
:param exc: 校验异常
:return: 接口响应对象
"""
try:
res = list(map(lambda key: to_result(key, args=exc.args),
exc.args[0].keys() if len(exc.args) > 0 else []))
except Exception as e:
return result.error(str(exc.detail))
if len(res) > 0:
return res[0]
else:
return result.error("未知异常")
def handle_exception(exc, context):
exception_class = exc.__class__
# 先调用REST framework默认的异常处理方法获得标准错误响应对象
response = exception_handler(exc, context)
traceback.print_exc()
# 在此处补充自定义的异常处理
if issubclass(exception_class, ValidationError):
return validation_error_to_result(exc)
if issubclass(exception_class, AppApiException):
return result.Result(exc.code, exc.message, response_status=exc.status_code)
if issubclass(exception_class, APIException):
return result.error(exc.detail)
if response is None:
return result.error(str(exc))
return response