From 7f81b01d88d7298e8c4467246d63b21944015e0a Mon Sep 17 00:00:00 2001
From: "Ronald A. Richardson" <me@ron.dev>
Date: Tue, 19 May 2026 15:23:06 +0800
Subject: [PATCH 1/2] make `order_config` relationship async: false

---
 addon/models/order.js           | 2 +-
 tests/unit/models/order-test.js | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/addon/models/order.js b/addon/models/order.js
index a33f1dd..a444b72 100644
--- a/addon/models/order.js
+++ b/addon/models/order.js
@@ -32,7 +32,7 @@ export default class OrderModel extends Model {
 
     /** @relationships */
     @belongsTo('company') company;
-    @belongsTo('order-config') order_config;
+    @belongsTo('order-config', { async: false }) order_config;
     @belongsTo('customer', { polymorphic: true, async: false }) customer;
     @belongsTo('facilitator', { polymorphic: true, async: false }) facilitator;
     @belongsTo('transaction', { async: false }) transaction;
diff --git a/tests/unit/models/order-test.js b/tests/unit/models/order-test.js
index 5592973..4084264 100644
--- a/tests/unit/models/order-test.js
+++ b/tests/unit/models/order-test.js
@@ -11,4 +11,11 @@ module('Unit | Model | order', function (hooks) {
         let model = store.createRecord('order', {});
         assert.ok(model);
     });
+
+    test('order config is embedded synchronously', function (assert) {
+        let store = this.owner.lookup('service:store');
+        let relationship = store.modelFor('order').relationshipsByName.get('order_config');
+
+        assert.strictEqual(relationship.options.async, false);
+    });
 });

From 6b291880022e59169c15c88446916ed402173971 Mon Sep 17 00:00:00 2001
From: "Ronald A. Richardson" <me@ron.dev>
Date: Tue, 19 May 2026 17:48:19 +0800
Subject: [PATCH 2/2] fix order_config serialization

---
 addon/serializers/order.js           | 10 ++++++++
 tests/unit/serializers/order-test.js | 35 ++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+)

diff --git a/addon/serializers/order.js b/addon/serializers/order.js
index d74b467..d8f41f2 100644
--- a/addon/serializers/order.js
+++ b/addon/serializers/order.js
@@ -36,6 +36,8 @@ export default class OrderSerializer extends ApplicationSerializer.extend(Embedd
      */
     serialize(snapshot, options) {
         const json = super.serialize(snapshot, options);
+        const selectedOrderConfigUuid = snapshot.attr('order_config_uuid');
+        const selectedType = snapshot.attr('type');
         const unshiftAttributes = [
             'order_config',
             'driver_name',
@@ -59,6 +61,14 @@ export default class OrderSerializer extends ApplicationSerializer.extend(Embedd
             delete json[attr];
         });
 
+        if (!isBlank(selectedOrderConfigUuid)) {
+            json.order_config_uuid = selectedOrderConfigUuid;
+        }
+
+        if (!isBlank(selectedType)) {
+            json.type = selectedType;
+        }
+
         return json;
     }
 
diff --git a/tests/unit/serializers/order-test.js b/tests/unit/serializers/order-test.js
index 30a23f2..808ddca 100644
--- a/tests/unit/serializers/order-test.js
+++ b/tests/unit/serializers/order-test.js
@@ -20,4 +20,39 @@ module('Unit | Serializer | order', function (hooks) {
 
         assert.ok(serializedRecord);
     });
+
+    test('selected order config scalar fields win over a stale relationship snapshot', function (assert) {
+        let store = this.owner.lookup('service:store');
+        let transport = store.push({
+            data: {
+                type: 'order-config',
+                id: 'transport-config-uuid',
+                attributes: {
+                    key: 'transport',
+                    name: 'Transport',
+                },
+            },
+        });
+        let haulage = store.push({
+            data: {
+                type: 'order-config',
+                id: 'haulage-config-uuid',
+                attributes: {
+                    key: 'haulage',
+                    name: 'Haulage',
+                },
+            },
+        });
+        let record = store.createRecord('order', {
+            order_config: transport,
+            order_config_uuid: haulage.id,
+            type: haulage.key,
+        });
+
+        let serializedRecord = record.serialize();
+
+        assert.strictEqual(serializedRecord.order_config_uuid, haulage.id);
+        assert.strictEqual(serializedRecord.type, haulage.key);
+        assert.notOk(serializedRecord.order_config);
+    });
 });