Michael Chihlas
16b9abf2e2
Teaches l1_walk_sessions a new session_kind='ai_build' for AI-generated decision-tree walks. FK shape matches adhoc: both flow_id and flow_proposal_id must be NULL. Drops and recreates the two affected CHECK constraints (session_kind allowlist + target_consistency). Migration beca7464b6b4 chains from b3358ba0e48c. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
49 lines
1.9 KiB
Python
49 lines
1.9 KiB
Python
"""add ai_build session kind
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Revision ID: beca7464b6b4
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Revises: b3358ba0e48c
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Create Date: 2026-05-29 18:41:38.601537
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"""
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from typing import Sequence, Union
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from alembic import op
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import sqlalchemy as sa
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# revision identifiers, used by Alembic.
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revision: str = 'beca7464b6b4'
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down_revision: Union[str, None] = 'b3358ba0e48c'
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branch_labels: Union[str, Sequence[str], None] = None
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depends_on: Union[str, Sequence[str], None] = None
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def upgrade() -> None:
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op.drop_constraint("ck_l1_walk_sessions_session_kind", "l1_walk_sessions", type_="check")
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op.create_check_constraint(
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"ck_l1_walk_sessions_session_kind", "l1_walk_sessions",
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"session_kind IN ('flow', 'proposal', 'adhoc', 'ai_build')",
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)
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op.drop_constraint("ck_l1_walk_sessions_target_consistency", "l1_walk_sessions", type_="check")
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op.create_check_constraint(
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"ck_l1_walk_sessions_target_consistency", "l1_walk_sessions",
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"(session_kind = 'flow' AND flow_id IS NOT NULL AND flow_proposal_id IS NULL) "
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"OR (session_kind = 'proposal' AND flow_proposal_id IS NOT NULL AND flow_id IS NULL) "
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"OR (session_kind IN ('adhoc', 'ai_build') AND flow_id IS NULL AND flow_proposal_id IS NULL)",
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)
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def downgrade() -> None:
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op.drop_constraint("ck_l1_walk_sessions_target_consistency", "l1_walk_sessions", type_="check")
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op.create_check_constraint(
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"ck_l1_walk_sessions_target_consistency", "l1_walk_sessions",
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"(session_kind = 'flow' AND flow_id IS NOT NULL AND flow_proposal_id IS NULL) "
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"OR (session_kind = 'proposal' AND flow_proposal_id IS NOT NULL AND flow_id IS NULL) "
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"OR (session_kind = 'adhoc' AND flow_id IS NULL AND flow_proposal_id IS NULL)",
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)
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op.drop_constraint("ck_l1_walk_sessions_session_kind", "l1_walk_sessions", type_="check")
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op.create_check_constraint(
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"ck_l1_walk_sessions_session_kind", "l1_walk_sessions",
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"session_kind IN ('flow', 'proposal', 'adhoc')",
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)
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