We needed to override the default QuerySet delete function to deal with a client problem that we were facing
Yes This is monkey-patching, and probably bad practice but if anyone needs to conditionally override the cascading delete that django does at the application level from a queryset, this is how to do it
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | from django.db.models.query import QuerySet
#save original delete method
orrigdelete = QuerySet.delete
def showdelete(self):
#add on to delete method
for test in self:
if isinstance(test, YourObject):
raise Exception('someone tried to delete your object')
return
else:
break
#call original delete
return orrigdelete(self)
#set the queryset delete as our new method
QuerySet.delete = showdelete
|
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