api_fhir/utils/dbManagerUtils.py
from django.core.exceptions import MultipleObjectsReturned
from django.http import Http404
from django.shortcuts import get_object_or_404, get_list_or_404
class DbManagerUtils(object):
__FIRST = 0
@classmethod
def get_object_or_none(cls, model, **kwargs):
try:
result = get_object_or_404(model, **kwargs)
except MultipleObjectsReturned:
result = get_list_or_404(model, **kwargs)[cls.__FIRST]
except Http404:
result = None
return result