From 01193511d5ec1509b3d55d2a6d077a6ba5b93824 Mon Sep 17 00:00:00 2001
From: oliverpool <oliverpool@hotmail.fr>
Date: Thu, 24 Nov 2016 13:33:20 +0100
Subject: [PATCH] Use the otherKey to update a relation

If the `otherKey` of the relationship was set, the widget was considering the wrong column name.
---
 modules/backend/formwidgets/Relation.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/modules/backend/formwidgets/Relation.php b/modules/backend/formwidgets/Relation.php
index 17aef5e08..3dc4e4f9e 100644
--- a/modules/backend/formwidgets/Relation.php
+++ b/modules/backend/formwidgets/Relation.php
@@ -140,8 +140,8 @@ class Relation extends FormWidgetBase
             }
 
             $field->options = $usesTree
-                ? $result->listsNested($nameFrom, $relationModel->getKeyName())
-                : $result->lists($nameFrom, $relationModel->getKeyName());
+                ? $result->listsNested($nameFrom, $relationObject->getOtherKey())
+                : $result->lists($nameFrom, $relationObject->getOtherKey());
 
             return $field;
         });