Created
August 22, 2019 14:55
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# HANDLER | |
from django.utils.translation import ugettext_lazy as _ | |
from rest_framework.exceptions import ErrorDetail | |
from rest_framework.views import exception_handler | |
non_field_errors = 'non_field_errors' | |
def set_custome_errors(errors): | |
for key, values in errors.items(): | |
errors[key] = values[0] if len(values) == 1 else values | |
return errors | |
def append_errors_collection(field_errors, errors, field_name=None): | |
if isinstance(errors, dict): | |
if errors.get('custome'): | |
field_errors['state'][field_name] = set_custome_errors(errors) | |
return field_errors | |
for _field_name, _errors in errors.items(): | |
if not field_name: | |
local_field_name = _field_name | |
elif field_name is not non_field_errors: | |
local_field_name = f"{field_name}__{_field_name}" | |
else: | |
local_field_name = field_name | |
append_errors_collection( | |
field_errors, | |
_errors, | |
local_field_name | |
) | |
return field_errors | |
for error in errors: | |
if not isinstance(error, dict): | |
field_errors['state'][field_name] = { | |
'reason': getattr(error, 'code'), | |
'message': str(error) | |
} | |
else : | |
append_errors_collection( | |
field_errors, | |
error, | |
field_name | |
) | |
def custom_exception_handler(exc, context): | |
response = exception_handler(exc, context) | |
if response is not None and hasattr(exc, 'detail'): | |
general_message = _('Bad request') | |
response.data = {} | |
errors = exc.detail | |
dumped_errors = [] | |
if isinstance(errors, dict): | |
if errors.get('custom'): | |
dumped_errors.append(set_custome_errors(errors)) | |
else: | |
field_errors = append_errors_collection( | |
{'message': 'Request is invalid', 'state': {}}, | |
errors) | |
dumped_errors.append(field_errors) | |
else: | |
response.data['errors'] = dumped_errors | |
if isinstance(errors, list): | |
for error in errors: | |
dumped_errors.append({'message': str(error), 'reason': error.code}) | |
else: | |
dumped_errors.append({'message': str(errors), 'reason': errors.code}) | |
response.data['errors'] = dumped_errors | |
response.data['code'] = response.status_code | |
response.data['message'] = general_message | |
return response | |
# settings.py | |
REST_FRAMEWORK = { | |
'EXCEPTION_HANDLER': 'path.to.custom_exception_handler' | |
} |
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