0049_proposal_snapshot_anchors.py
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| 1 | """Add from_snapshot_id and to_snapshot_id to musehub_proposals. |
| 2 | |
| 3 | Captures the HEAD commit ID of each branch at proposal creation time, |
| 4 | providing cryptographic anchors for FROM STATE and TO STATE. |
| 5 | |
| 6 | Revision ID: 0049 |
| 7 | Revises: 0048 |
| 8 | """ |
| 9 | from __future__ import annotations |
| 10 | |
| 11 | import sqlalchemy as sa |
| 12 | from alembic import op |
| 13 | |
| 14 | revision: str = "0049" |
| 15 | down_revision: str = "0048" |
| 16 | branch_labels = None |
| 17 | depends_on = None |
| 18 | |
| 19 | |
| 20 | def upgrade() -> None: |
| 21 | op.add_column( |
| 22 | "musehub_proposals", |
| 23 | sa.Column("from_snapshot_id", sa.String(128), nullable=True), |
| 24 | ) |
| 25 | op.add_column( |
| 26 | "musehub_proposals", |
| 27 | sa.Column("to_snapshot_id", sa.String(128), nullable=True), |
| 28 | ) |
| 29 | |
| 30 | |
| 31 | def downgrade() -> None: |
| 32 | op.drop_column("musehub_proposals", "to_snapshot_id") |
| 33 | op.drop_column("musehub_proposals", "from_snapshot_id") |