41 lines
1.2 KiB
Python
41 lines
1.2 KiB
Python
 
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"""instance-wide default quota for new users
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The per-user ``users.quota_bytes`` stays authoritative for accounts that already
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exist — changing the default must never resize anyone's mailbox retroactively.
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This is only the value handed to the next user created.
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Revision ID: 0017
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Revises: 0016
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Create Date: 2026-09-15
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"""
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from __future__ import annotations
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from collections.abc import Sequence
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from alembic import op
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revision: str = "0017"
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down_revision: str | None = "0016"
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branch_labels: str | Sequence[str] | None = None
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depends_on: str | Sequence[str] | None = None
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# 5 GiB — the same figure users.quota_bytes has defaulted to since 0001.
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_DEFAULT = 5 * 1024**3
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def upgrade() -> None:
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op.execute(
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"ALTER TABLE app_settings ADD COLUMN default_quota_bytes bigint NOT NULL "
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f"DEFAULT {_DEFAULT}"
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)
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op.execute(
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"ALTER TABLE app_settings ADD CONSTRAINT ck_app_settings_quota_positive "
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"CHECK (default_quota_bytes > 0)"
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)
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def downgrade() -> None:
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op.execute("ALTER TABLE app_settings DROP CONSTRAINT IF EXISTS ck_app_settings_quota_positive")
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op.execute("ALTER TABLE app_settings DROP COLUMN IF EXISTS default_quota_bytes")
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