Andrey Butenko whitespy

🏠

Working from home

I'm a Python developer. I build web applications based on Django, Django REST framework and FastAPI.

whitespy / gist:e3f14853128a76cca298823afbcb1a35

Last active February 11, 2025 09:42

singleton issue

	if __name__ == "__main__":
	base_manager = RedisBaseManager()
	print(id(base_manager))
	print(id(base_manager.redis_connection))

	base_manager = RedisBaseManager()
	print(id(base_manager))
	print(id(base_manager.redis_connection))

whitespy / py

Created January 23, 2025 14:03

pubsub.py

	async with app["redis_connection"].pubsub() as pubsub:
	await pubsub.psubscribe("applicants:*")

	try:
	while True:
	message = await pubsub.get_message(ignore_subscribe_messages=True)
	if message is not None:
	for ws in app["websockets"].get(message["channel"], []):
	if not ws.closed:
	await ws.send_json(message["data"])

whitespy / Redis.py

Last active June 17, 2024 09:11

	# Ця таска буде працюати у фоні.
	# Приклад https://docs.aiohttp.org/en/stable/web_advanced.html#background-tasks
	async def dispatch_redis_pubsub_messages(app):
	async with app["redis_connection"].pubsub() as pubsub:
	await pubsub.psubscribe("user:*")

	try:
	while True:
	try:
	message = await pubsub.get_message(ignore_subscribe_messages=True)

whitespy / 1.txt

Created August 30, 2022 12:26

whitespy / models.py

Created May 12, 2022 14:42

	class AssignmentCellSubmission(CoreModel):
	assignment_submission = models.ForeignKey(
	AssignmentSubmission,
	on_delete=models.CASCADE,
	related_name="cell_submissions",
	verbose_name=_("assignment submission"),
	)
	assignment_cell = models.ForeignKey(
	"courses.AssignmentCell",
	on_delete=models.CASCADE,

whitespy / cells.json

Created May 6, 2022 16:57

whitespy / courses.py

Created April 21, 2022 17:19

	class CourseQuerySet(CoreQuerySet):
	def annotate_by_user_flags(self, user):
	return self.annotate(
	is_user_course_editor=Case(
	When(
	Exists(
	OrganizationMember.objects.filter(
	organization=OuterRef("campus__organization"), user=user, role=UserRole.ADMIN
	)
	)

whitespy / 2.py

Created April 5, 2022 15:38

	class OrganizationViewSet(mixins.CreateModelMixin, mixins.RetrieveModelMixin, mixins.ListModelMixin, GenericViewSet):
	lookup_field = "slug"
	lookup_url_kwarg = "organization_slug"
	queryset = Organization.objects.none()
	permission_classes = [IsAuthenticated]
	serializer_class = OrganizationSerializer

	def get_queryset(self):
	return self.request.user.membership_organizations.all()

whitespy / 1.py

Created April 5, 2022 15:36

	class OrganizationCreateListAPIView(GenericAPIView):
	queryset = Organization.objects.all()
	serializer_class = OrganizationSerializer
	response_serializer_class = OrganizationSerializer
	permission_classes = [IsAuthenticated]

	def get(self, request, args, *kwargs):
	organization_service = OrganizationService()
	organizations = organization_service.get_organizations(self.request.user.pk)
	serializer = OrganizationSerializer(organizations, many=True)

whitespy / json

Created February 24, 2021 11:27

	"third_party_services":[
	{
	"name": "Spotlight",
	"uuid": "2ebebb64-e98b-4a6c-8fd4-d26592f74a25",
	"provider":{
	"name": "Spotlight Verlag",
	"currency":{"code": "CHF", "name": "Schweizer Franken"}
	},
	"subscription_option":{
	"name": "E-Paper",