zulip/confirmation/migrations/0009_confirmation_expiry_da...

71 lines
2.5 KiB
Python

# Generated by Django 3.1.7 on 2021-03-31 20:47
import time
from datetime import timedelta
from django.conf import settings
from django.db import migrations, transaction
from django.db.backends.postgresql.schema import DatabaseSchemaEditor
from django.db.migrations.state import StateApps
def set_expiry_date_for_existing_confirmations(
apps: StateApps, schema_editor: DatabaseSchemaEditor
) -> None:
Confirmation = apps.get_model("confirmation", "Confirmation")
if not Confirmation.objects.exists():
return
# The values at the time of this migration
INVITATION = 2
UNSUBSCRIBE = 4
MULTIUSE_INVITE = 6
@transaction.atomic
def backfill_confirmations_between(lower_bound: int, upper_bound: int) -> None:
confirmations = Confirmation.objects.filter(id__gte=lower_bound, id__lte=upper_bound)
for confirmation in confirmations:
if confirmation.type in (INVITATION, MULTIUSE_INVITE):
confirmation.expiry_date = confirmation.date_sent + timedelta(
days=settings.INVITATION_LINK_VALIDITY_DAYS
)
elif confirmation.type == UNSUBSCRIBE:
# Unsubscribe links never expire, which we apparently implement as in 1M days.
confirmation.expiry_date = confirmation.date_sent + timedelta(days=1000000)
else:
confirmation.expiry_date = confirmation.date_sent + timedelta(
days=settings.CONFIRMATION_LINK_DEFAULT_VALIDITY_DAYS
)
Confirmation.objects.bulk_update(confirmations, ["expiry_date"])
# Because the ranges in this code are inclusive, subtracting 1 offers round numbers.
BATCH_SIZE = 1000 - 1
first_id = Confirmation.objects.earliest("id").id
last_id = Confirmation.objects.latest("id").id
id_range_lower_bound = first_id
id_range_upper_bound = first_id + BATCH_SIZE
while id_range_lower_bound <= last_id:
print(f"Processed {id_range_lower_bound} / {last_id}")
backfill_confirmations_between(id_range_lower_bound, id_range_upper_bound)
id_range_lower_bound = id_range_upper_bound + 1
id_range_upper_bound = id_range_lower_bound + BATCH_SIZE
time.sleep(0.1)
class Migration(migrations.Migration):
atomic = False
dependencies = [
("confirmation", "0008_confirmation_expiry_date"),
]
operations = [
migrations.RunPython(
set_expiry_date_for_existing_confirmations,
reverse_code=migrations.RunPython.noop,
elidable=True,
),
]