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50 lines
1.4 KiB
Python
50 lines
1.4 KiB
Python
from celery import shared_task
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@shared_task(name="chatrooms_cleansing")
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def chatrooms_cleansing():
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"""
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Deletes chatrooms and encrypted messages of orders
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that have completely finished more than 3 days ago.
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"""
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from datetime import timedelta
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from django.utils import timezone
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from api.models import Order
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from chat.models import ChatRoom
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finished_states = [
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Order.Status.SUC,
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Order.Status.TLD,
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Order.Status.MLD,
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Order.Status.CCA,
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Order.Status.UCA,
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]
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# Orders that have expired more than 3 days ago
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# Usually expiry takes place 1 day after a finished order. So, ~4 days
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# until encrypted messages are deleted.
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finished_time = timezone.now() - timedelta(days=3)
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queryset = Order.objects.filter(
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status__in=finished_states, expires_at__lt=finished_time
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)
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# And do not have an active trade, any past contract or any reward.
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deleted_chatrooms = []
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for order in queryset:
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# Try an except. In case some chatroom is already missing.
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try:
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chatroom = ChatRoom.objects.get(id=order.id)
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deleted_chatrooms.append(str(chatroom))
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chatroom.delete()
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except Exception:
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pass
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results = {
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"num_deleted": len(deleted_chatrooms),
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"deleted_chatrooms": deleted_chatrooms,
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}
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return results
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