Phase 1 of Migration. Running Scripts

backend/migration/migrate_crm_quotation_items.py

@@ -0,0 +1,85 @@
+"""
+Phase 1 — Step 1.7: crm_quotation_items  (SQLite → Postgres)
+
+FK to crm_quotations(id) — quotations must be migrated first (step 1.6).
+FK enforcement suppressed via session_replication_role for the same reason
+as in migrate_crm_quotations (parent crm_customers not yet in PG).
+
+Run on VPS:
+    docker compose exec backend python -m migration.migrate_crm_quotation_items
+"""
+
+import asyncio
+import sys
+from decimal import Decimal
+
+from sqlalchemy import text
+from sqlalchemy.dialects.postgresql import insert as pg_insert
+
+from crm.orm import CrmQuotationItem
+from migration.utils import open_sqlite, AsyncPgSession, log_run, pg_count
+
+SCRIPT = "migrate_crm_quotation_items"
+
+
+def _dec(val, default="0") -> Decimal:
+    try:
+        return Decimal(str(val)) if val is not None else Decimal(default)
+    except Exception:
+        return Decimal(default)
+
+
+async def run() -> None:
+    sqlite = await open_sqlite()
+    rows = await sqlite.execute_fetchall(
+        "SELECT * FROM crm_quotation_items ORDER BY quotation_id, sort_order"
+    )
+    await sqlite.close()
+
+    source_count = len(rows)
+    print(f"Source (SQLite): {source_count} crm_quotation_items rows")
+
+    if source_count == 0:
+        print("Nothing to migrate.")
+        await log_run(SCRIPT, 0, 0, notes="source empty")
+        return
+
+    records = []
+    for r in rows:
+        records.append({
+            "id":               r["id"],
+            "quotation_id":     r["quotation_id"],
+            "product_id":       r["product_id"],
+            "description":      r["description"],
+            "description_en":   r["description_en"],
+            "description_gr":   r["description_gr"],
+            "unit_type":        r["unit_type"] or "pcs",
+            "unit_cost":        _dec(r["unit_cost"]),
+            "discount_percent": _dec(r["discount_percent"]),
+            "vat_percent":      _dec(r["vat_percent"], "24"),
+            "quantity":         _dec(r["quantity"], "1"),
+            "line_total":       _dec(r["line_total"]),
+            "sort_order":       int(r["sort_order"]) if r["sort_order"] is not None else 0,
+        })
+
+    async with AsyncPgSession() as session:
+        await session.execute(text("SET session_replication_role = replica"))
+        async with session.begin():
+            stmt = pg_insert(CrmQuotationItem).values(records)
+            stmt = stmt.on_conflict_do_nothing(index_elements=["id"])
+            await session.execute(stmt)
+            dest_count = await pg_count(session, "crm_quotation_items")
+        await session.execute(text("SET session_replication_role = DEFAULT"))
+
+    if dest_count < source_count:
+        msg = f"Count mismatch: source={source_count}  postgres={dest_count}"
+        print(f"ERROR: {msg}", file=sys.stderr)
+        await log_run(SCRIPT, source_count, dest_count, success=False, notes=msg)
+        sys.exit(1)
+
+    print(f"Postgres: {dest_count} rows ✓")
+    await log_run(SCRIPT, source_count, dest_count)
+
+
+if __name__ == "__main__":
+    asyncio.run(run())