bvandeusenandClaude Opus 5.5
8c9bb000fa
0121 keeps the ARM_BORN date beside the constant it justifies. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
83 lines
3.0 KiB
Python
83 lines
3.0 KiB
Python
"""drop rulebook subscriptions and per-project suppressions
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Revision ID: 0101
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Revises: 0100
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Create Date: 2026-09-15
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A rule lives in a rulebook topic, where it is GLOBAL, or on one project, and
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retrieval reads that home directly. Subscriptions were the last thing that
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pretended a rulebook reached some projects and not others, and with no
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always-on tier they changed nothing a session received — only what a
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project's rule LISTING showed. Global and project-scoped rules cover what
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subscriptions were for.
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WHAT GOES
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- ``project_rulebook_subscriptions`` (migration 0058).
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- ``project_rule_suppressions`` and ``project_topic_suppressions``. They let a
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project mute rules from a rulebook it subscribed to. With no subscription
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there is nothing to mute; a project that departs from a global rule writes
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a project rule with an ``overrides`` relation, which says why.
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- The ``subscribe_rulebooks`` key inside ``projects.inception.choices``, and
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the ``exclude_always_on_rulebooks`` key the retired always-on tier left
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in the same place. Both describe decisions that can no longer be made; a stored
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record carrying them would be read back as a choice the product offers.
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IRREVERSIBLE, AND THE DOWNGRADE SAYS SO
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The downgrade recreates the three tables empty. Which projects subscribed to
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which rulebooks, and what they muted, is in what this drops. Restore a backup
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taken before this ran if the prior state matters.
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"""
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import sqlalchemy as sa
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from alembic import op
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revision = "0101"
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down_revision = "0100"
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branch_labels = None
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depends_on = None
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def upgrade() -> None:
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op.drop_table("project_topic_suppressions")
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op.drop_table("project_rule_suppressions")
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op.drop_table("project_rulebook_subscriptions")
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op.execute(
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"""
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UPDATE projects
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SET inception = jsonb_set(
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inception, '{choices}',
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(inception->'choices') - 'subscribe_rulebooks' - 'exclude_always_on_rulebooks'
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)
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WHERE inception IS NOT NULL
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AND jsonb_typeof(inception->'choices') = 'object'
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"""
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)
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def _join_table(name: str, other: str, other_table: str) -> None:
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op.create_table(
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name,
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sa.Column(
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"project_id", sa.BigInteger(),
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sa.ForeignKey("projects.id", ondelete="CASCADE"),
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primary_key=True, nullable=False,
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),
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sa.Column(
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other, sa.BigInteger(),
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sa.ForeignKey(f"{other_table}.id", ondelete="CASCADE"),
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primary_key=True, nullable=False,
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),
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sa.Column(
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"created_at", sa.DateTime(timezone=True),
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server_default=sa.text("now()"), nullable=True,
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),
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)
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def downgrade() -> None:
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"""Structure only. See the module docstring — the rows are gone."""
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_join_table("project_rulebook_subscriptions", "rulebook_id", "rulebooks")
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_join_table("project_rule_suppressions", "rule_id", "rules")
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_join_table("project_topic_suppressions", "topic_id", "rulebook_topics")
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