From ae3f88cc7253a29c5fca87113ec88bd84de9c292 Mon Sep 17 00:00:00 2001
From: Stefano Pigozzi <ste.pigozzi@gmail.com>
Date: Fri, 31 Jul 2020 16:16:18 +0200
Subject: [PATCH] Prevent duplicate mmresponses from being inserted

---
 royalpack/utils/mmtask.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/royalpack/utils/mmtask.py b/royalpack/utils/mmtask.py
index 0d0f3cbc..3c92f076 100644
--- a/royalpack/utils/mmtask.py
+++ b/royalpack/utils/mmtask.py
@@ -5,6 +5,7 @@ import logging
 import datetime
 import enum
 import asyncio as aio
+import psycopg2
 
 from telegram import InlineKeyboardMarkup as InKM
 from telegram import InlineKeyboardButton as InKB
@@ -179,7 +180,10 @@ class MMTask:
             else:
                 # Change their response
                 mmresponse.choice = choice
-            await data.session_commit()
+            try:
+                await data.session_commit()
+            except psycopg2.Error:
+                raise rc.UserError("Hai già risposto nello stesso modo a questo matchmaking.")
 
             await self.telegram_channel_message_update()