From b9555efe600fad0533af85340143e15cf6c414c1 Mon Sep 17 00:00:00 2001
From: Denis Chenu <denis@sondages.pro>
Date: Sat, 3 Apr 2021 23:08:52 +0200
Subject: [PATCH] Fixed issue #17208: avoid column name must be either a string
 or an array during survey taking (#1825)

Dev: some response table can have broken primaryKey, avoid public DB issue
---
 application/models/Response.php | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/application/models/Response.php b/application/models/Response.php
index 2eaa4007a4a..582dc33294c 100644
--- a/application/models/Response.php
+++ b/application/models/Response.php
@@ -36,6 +36,15 @@ public static function create($surveyId, $scenario = 'insert')
             return parent::create($surveyId, $scenario);
         }
 
+        /** @inheritdoc
+         * Must be set by DB, adding by security here
+         * @see https://bugs.limesurvey.org/view.php?id=17208
+         **/
+        public function primaryKey()
+        {
+            return 'id';
+        }
+
         /**
          * Get all files related to this response and (optionally) question ID.
          *