def _create_deliveries(self):
from devilry.apps.core.models import Delivery
for assignmentgroup in self.assignment.assignmentgroups.all().prefetch_related('candidates'):
number_of_deliveries = random.randint(self.mindeliveries, self.maxdeliveries)
self._print_message('Adding {} deliveries to {}'.format(number_of_deliveries, assignmentgroup))
try:
first_canididate = assignmentgroup.candidates.all()[0]
except IndexError:
continue
for deliverynumber in xrange(number_of_deliveries):
files = self._choose_random_files(random.randint(self.minfiles, self.maxfiles))
delivery = Delivery(
deadline=assignmentgroup.last_deadline,
delivered_by=first_canididate,
successful=True,
# NOTE: Set time_of_delivery to ensure sorting is correct (can create multiple deliveries during
# a single second)
time_of_delivery=timezone.now() + timedelta(seconds=deliverynumber))
delivery.save(autoset_time_of_delivery=False)
self._print_message('Adding {} files to {}'.format(len(files), delivery))
for filepath in files:
filename = os.path.relpath(filepath, self.directory)
delivery.add_file(
filename=filename,
iterable_data=open(filepath, 'rb')
)
def __init__(self, **kwargs):
if 'time_of_delivery' not in kwargs:
kwargs['time_of_delivery'] = timezone.now()
self.delivery = Delivery(**kwargs)
if 'number' not in kwargs:
self.delivery.set_number()
self.delivery.save()
def convert_to_delivery(self, deadline, user):
"""
Convert all the UploadedDeliveryFile objects mathing the given deadline and user to a Delivery.
Typical usage::
from django.db import transaction
with transaction.commit_on_success():
delivery, files = UploadedDeliveryFile.objects.convert_to_delivery(mydeadline, myuser)
with transaction.commit_on_success():
files.delete_objects_and_files()
:return:
A (delivery, queryset) tuple where the ``delivery`` is the created Delivery,
the ``queryset` is a :class:`.UploadedDeliveryFileQuerySet` with the
files that was made into a delivery.
"""
queryset = self.filter_for_deadline(deadline, user)
if not queryset.exists():
raise UploadedDeliveryFile.DoesNotExist(
'No UploadedDeliveryFile with the given deadline and user exists.'
)
candidate = deadline.assignment_group.candidates.filter(
relatedstudent__user=user).get()
delivery = Delivery(deadline=deadline,
delivered_by=candidate,
successful=False)
delivery.set_number()
delivery.save()
for uploaded_deliveryfile in queryset:
delivery.add_file(uploaded_deliveryfile.filename,
uploaded_deliveryfile.uploaded_file)
delivery.successful = True
delivery.save()
return delivery, queryset
