From 2387761f73bd3909572093697bf5b0d6432f9233 Mon Sep 17 00:00:00 2001
From: Martin Mares <mj@ucw.cz>
Date: Tue, 14 Apr 2020 12:59:03 +0200
Subject: [PATCH] Hook: Reset DB transaction at the end of each request
---
hook/hook.wsgi | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/hook/hook.wsgi b/hook/hook.wsgi
index d0828e6..36ea076 100644
--- a/hook/hook.wsgi
+++ b/hook/hook.wsgi
@@ -38,6 +38,15 @@ def db_query(query, args=()):
db_connect()
db.execute(query, args)
+def db_reset():
+ # At the end of every request, we have to close the implicitly opened
+ # transaction. Otherwise we end up with serving stale data.
+ if db_connection is not None:
+ try:
+ db_connection.rollback()
+ except:
+ pass
+
### Utilities ###
def parse_time(iso_time):
@@ -279,3 +288,5 @@ def application(env, start_response):
except Exception as exc:
app.log(traceback.print_exception(etype=None, value=exc, tb=exc.__traceback__))
return app.http_error(500, "Internal server error")
+ finally:
+ db_reset()
--
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