def defer(self):
today = datetime.date.today()
if today > self.date:
raise ValueError('unable to defer assignments that have already been completed')
eligible_workers = self.eligible_defer_targets()
weighted_workers = [(w, w.deferral_weight())
for w in eligible_workers]
new_worker = weighted_choice(weighted_workers)
# create the debit
debit = Debit.objects.create(
worker=self.worker,
skipped_assignment=self,
)
# create the credit
credit = Credit.objects.create(
debit=debit,
worker=new_worker,
)
# resassign worker on current assignment
self.worker = new_worker
self.defer_code = generate_uuid()
self.save()
email.defer_notify(debit)
return debit
def defer_to(self, new_worker):
assert isinstance(new_worker, NamelessWorker)
debit = Debit.objects.create(
worker=self.worker,
skipped_assignment=self
)
credit = Credit.objects.create(
debit=debit,
worker=new_worker
)
self.worker = new_worker
self.defer_code = generate_uuid()
self.save()
email.defer_notify(debit)
return debit
