0019_commit_provenance_columns.py
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| 1 | """Promote agent_id, model_id, commit_branch to first-class columns on musehub_commits. |
| 2 | |
| 3 | These were previously buried in the commit_meta JSON blob, making them |
| 4 | unqueryable without JSON extraction. Promoting them enables indexed lookups |
| 5 | and clean UI display. |
| 6 | |
| 7 | Revision ID: 0019 |
| 8 | Revises: 0018 |
| 9 | Create Date: 2026-05-04 |
| 10 | """ |
| 11 | from __future__ import annotations |
| 12 | |
| 13 | from alembic import op |
| 14 | import sqlalchemy as sa |
| 15 | |
| 16 | revision = "0019" |
| 17 | down_revision = "0018" |
| 18 | branch_labels = None |
| 19 | depends_on = None |
| 20 | |
| 21 | |
| 22 | def upgrade() -> None: |
| 23 | op.add_column( |
| 24 | "musehub_commits", |
| 25 | sa.Column("agent_id", sa.String(255), nullable=True, server_default=""), |
| 26 | ) |
| 27 | op.add_column( |
| 28 | "musehub_commits", |
| 29 | sa.Column("model_id", sa.String(255), nullable=True, server_default=""), |
| 30 | ) |
| 31 | op.add_column( |
| 32 | "musehub_commits", |
| 33 | sa.Column("commit_branch", sa.String(255), nullable=True), |
| 34 | ) |
| 35 | # Backfill from commit_meta JSON for all existing rows |
| 36 | op.execute( |
| 37 | """ |
| 38 | UPDATE musehub_commits |
| 39 | SET |
| 40 | agent_id = COALESCE(commit_meta->>'agent_id', ''), |
| 41 | model_id = COALESCE(commit_meta->>'model_id', ''), |
| 42 | commit_branch = NULLIF(commit_meta->>'branch', '') |
| 43 | WHERE agent_id IS NULL OR agent_id = '' |
| 44 | OR model_id IS NULL OR model_id = '' |
| 45 | OR commit_branch IS NULL |
| 46 | """ |
| 47 | ) |
| 48 | |
| 49 | |
| 50 | def downgrade() -> None: |
| 51 | from sqlalchemy import text |
| 52 | for col in ("commit_branch", "model_id", "agent_id"): |
| 53 | op.execute(text(f"ALTER TABLE musehub_commits DROP COLUMN IF EXISTS {col}")) |