mirror of https://github.com/zulip/zulip.git
41 lines
1.2 KiB
Python
41 lines
1.2 KiB
Python
import uuid
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from django.db import migrations, models
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from django.db.backends.postgresql.schema import DatabaseSchemaEditor
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from django.db.migrations.state import StateApps
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def backfill_user_profile_uuid(apps: StateApps, schema_editor: DatabaseSchemaEditor) -> None:
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UserProfile = apps.get_model("zerver", "UserProfile")
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max_id = UserProfile.objects.aggregate(models.Max("id"))["id__max"]
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if max_id is None:
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# Nothing to do if there are no users yet.
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return
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BATCH_SIZE = 10000
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lower_bound = 0
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while lower_bound < max_id:
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user_profiles_to_update = []
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for user_profile in UserProfile.objects.filter(
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id__gt=lower_bound, id__lte=lower_bound + BATCH_SIZE, uuid=None
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).only("id", "uuid"):
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user_profile.uuid = uuid.uuid4()
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user_profiles_to_update.append(user_profile)
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lower_bound += BATCH_SIZE
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UserProfile.objects.bulk_update(user_profiles_to_update, ["uuid"])
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class Migration(migrations.Migration):
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atomic = False
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dependencies = [
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("zerver", "0379_userprofile_uuid"),
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]
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operations = [
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migrations.RunPython(backfill_user_profile_uuid, reverse_code=migrations.RunPython.noop),
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]
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