Done what the docs suggested in c31a9e0 — actually installed
excel-azmin/frappe_pg on prod erp.gigafibre.ca (1.0.0, master pinned
at commit a237f5995b). Hit one compat bug along the way and fixed it.
The bug
frappe_pg monkey-patches PostgresDatabase.commit() and .rollback()
with wrappers that have the OLD `(self)` signature. Frappe 16.12+
now calls `db.rollback(chain=True)` from app.py:sync_database(),
which makes every HTTP request crash with:
TypeError: patched_rollback() got an unexpected keyword argument 'chain'
Symptom: HTTP 500 on /api/method/ping, Sales Invoice list, etc.
Customer Server Scripts that don't return through sync_database
(like our customer_balance) still worked, which is why the bug
only surfaced after the post-install restart.
The fix
Two-part: signatures take `*args, **kwargs`, and the wrapped call
forwards them to the original. Idempotent sed.
-def patched_rollback(self):
+def patched_rollback(self, *args, **kwargs):
- return _original_rollback(self)
+ return _original_rollback(self, *args, **kwargs)
Both files in frappe_pg need it: postgres/database_patches.py and
patches/postgres_fix.py. Same fix for patched_commit.
Saved as patches/fix_frappe_pg_signatures.sh so we can re-apply after
every `bench update` or fresh install. The comment block in the
script documents why it exists and links the upstream issue (TODO:
file PR at excel-azmin/frappe_pg). docs/SETUP.md §7 was updated to
mention the post-install patch step, the nginx-IP-cache gotcha that
will produce a confusing 502 if you only restart the backend, and
the correct repo (excel-azmin, not the-commit-company that I had
hallucinated in the previous commit).
Smoke test results post-install:
ping, Customer list, Sales Invoice list, Service Location list,
customer_balance Server Script, ops SPA, hub /health — all 200.
a6974e2443