Files
awx/awx/main/utils.py
2013-07-26 22:00:44 -04:00

54 lines
1.7 KiB
Python

# Python
import logging
import re
import sys
# Django REST Framework
from rest_framework.exceptions import ParseError, PermissionDenied
__all__ = ['get_object_or_400', 'get_object_or_403', 'camelcase_to_underscore']
def get_object_or_400(klass, *args, **kwargs):
'''
Return a single object from the given model or queryset based on the query
params, otherwise raise an exception that will return in a 400 response.
'''
from django.shortcuts import _get_queryset
queryset = _get_queryset(klass)
try:
return queryset.get(*args, **kwargs)
except queryset.model.DoesNotExist, e:
raise ParseError(*e.args)
except queryset.model.MultipleObjectsReturned, e:
raise ParseError(*e.args)
def get_object_or_403(klass, *args, **kwargs):
'''
Return a single object from the given model or queryset based on the query
params, otherwise raise an exception that will return in a 403 response.
'''
from django.shortcuts import _get_queryset
queryset = _get_queryset(klass)
try:
return queryset.get(*args, **kwargs)
except queryset.model.DoesNotExist, e:
raise PermissionDenied(*e.args)
except queryset.model.MultipleObjectsReturned, e:
raise PermissionDenied(*e.args)
def camelcase_to_underscore(s):
'''
Convert CamelCase names to lowercase_with_underscore.
'''
s = re.sub(r'(((?<=[a-z])[A-Z])|([A-Z](?![A-Z]|$)))', '_\\1', s)
return s.lower().strip('_')
class RequireDebugTrueOrTest(logging.Filter):
'''
Logging filter to output when in DEBUG mode or running tests.
'''
def filter(self, record):
from django.conf import settings
return settings.DEBUG or 'test' in sys.argv