From 786f27fbbfea2253893e6a40ddc45a985588bd6a Mon Sep 17 00:00:00 2001
From: Sven Slootweg <admin@cryto.net>
Date: Thu, 1 Aug 2024 19:02:55 +0200
Subject: [PATCH] Correctly handle null relations on local relation fields

---
 src/index.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/index.js b/src/index.js
index 71c5520..c537af1 100644
--- a/src/index.js
+++ b/src/index.js
@@ -216,7 +216,13 @@ module.exports = {
 
 			if (remoteTableLayout[foreignKey.column].isPrimaryKey === true) {
 				let field = [ localField, async function (_, { $make, $getProperty }) {
-					return $make(`dlayer-knex.${foreignKey.table}`, { id: await $getProperty(this, name) })
+					let id = await $getProperty(this, name);
+
+					if (id != null) {
+						return $make(`dlayer-knex.${foreignKey.table}`, { id: id });
+					} else {
+						return null;
+					}
 				}];
 
 				selfRelationFields.push(field);