From 7b9e54be5659e92f21f34c81b81c38eee7a5d053 Mon Sep 17 00:00:00 2001
From: "B. Petersen" <r10s@b44t.com>
Date: Wed, 23 Jun 2021 17:44:39 +0200
Subject: [PATCH] return unique token for new qr codes

as by reviving qr codes,
there may be more than one token for a chat,
ensure, the most recent token and only one token is returned
by the sql-command for looking up tokens
(used for generating new codes)
---
 src/token.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/token.rs b/src/token.rs
index 2433f3f36..9a7086b06 100644
--- a/src/token.rs
+++ b/src/token.rs
@@ -69,7 +69,7 @@ pub async fn lookup(
             context
                 .sql
                 .query_get_value(
-                    "SELECT token FROM tokens WHERE namespc=? AND foreign_id=?;",
+                    "SELECT token FROM tokens WHERE namespc=? AND foreign_id=? ORDER BY timestamp DESC LIMIT 1;",
                     paramsv![namespace, chat_id],
                 )
                 .await?
@@ -79,7 +79,7 @@ pub async fn lookup(
             context
                 .sql
                 .query_get_value(
-                    "SELECT token FROM tokens WHERE namespc=? AND foreign_id=0;",
+                    "SELECT token FROM tokens WHERE namespc=? AND foreign_id=0 ORDER BY timestamp DESC LIMIT 1;",
                     paramsv![namespace],
                 )
                 .await?