66 lines
2.2 KiB
Python
66 lines
2.2 KiB
Python
"""
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Phase 1 — Step 1.2: built_melodies (SQLite → Postgres)
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Run on VPS:
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docker compose exec backend python -m migration.migrate_built_melodies
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"""
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import asyncio
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import sys
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from sqlalchemy.dialects.postgresql import insert as pg_insert
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from melodies.orm import BuiltMelody
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from migration.utils import open_sqlite, AsyncPgSession, parse_dt, parse_json, log_run, pg_count
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SCRIPT = "migrate_built_melodies"
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async def run() -> None:
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sqlite = await open_sqlite()
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rows = await sqlite.execute_fetchall("SELECT * FROM built_melodies")
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await sqlite.close()
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source_count = len(rows)
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print(f"Source (SQLite): {source_count} built_melodies rows")
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if source_count == 0:
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print("Nothing to migrate.")
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await log_run(SCRIPT, 0, 0, notes="source empty")
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return
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records = []
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for r in rows:
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records.append({
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"id": r["id"],
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"name": r["name"],
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"pid": r["pid"],
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"steps": parse_json(r["steps"], default=[]),
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"binary_path": r["binary_path"],
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"progmem_code": r["progmem_code"],
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"assigned_melody_ids": parse_json(r["assigned_melody_ids"], default=[]),
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"is_builtin": bool(r["is_builtin"]) if r["is_builtin"] is not None else False,
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"created_at": parse_dt(r["created_at"]),
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"updated_at": parse_dt(r["updated_at"]),
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})
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async with AsyncPgSession() as session:
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async with session.begin():
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stmt = pg_insert(BuiltMelody).values(records)
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stmt = stmt.on_conflict_do_nothing(index_elements=["id"])
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await session.execute(stmt)
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dest_count = await pg_count(session, "built_melodies")
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if dest_count < source_count:
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msg = f"Count mismatch: source={source_count} postgres={dest_count}"
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print(f"ERROR: {msg}", file=sys.stderr)
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await log_run(SCRIPT, source_count, dest_count, success=False, notes=msg)
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sys.exit(1)
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print(f"Postgres: {dest_count} rows ✓")
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await log_run(SCRIPT, source_count, dest_count)
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if __name__ == "__main__":
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asyncio.run(run())
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