[Bug] Project code fix (#7599)

* Fix project_code serializer field

- Imroperly marked as "read only"

* Add unit test

* Bump API version

* Add project code label to order serializers

- Making it available in exported dataset

src/backend/InvenTree/InvenTree/api_version.py

@@ -1,12 +1,15 @@
 """InvenTree API version information."""
 
 # InvenTree API version
-INVENTREE_API_VERSION = 216
+INVENTREE_API_VERSION = 217
 
 """Increment this API version number whenever there is a significant change to the API that any clients need to know about."""
 
 
 INVENTREE_API_TEXT = """
+v217 - 2024-07-09 : https://github.com/inventree/InvenTree/pull/7599
+    - Fixes bug in "project_code" field for order API endpoints
+
 v216 - 2024-07-08 : https://github.com/inventree/InvenTree/pull/7595
     - Moves API endpoint for contenttype lookup by model name
 

src/backend/InvenTree/build/serializers.py

@@ -54,6 +54,7 @@ class BuildSerializer(NotesFieldMixin, DataImportExportSerializerMixin, InvenTre
             'part_name',
             'part_detail',
             'project_code',
+            'project_code_label',
             'project_code_detail',
             'overdue',
             'reference',
@@ -98,6 +99,8 @@ class BuildSerializer(NotesFieldMixin, DataImportExportSerializerMixin, InvenTre
 
     barcode_hash = serializers.CharField(read_only=True)
 
+    project_code_label = serializers.CharField(source='project_code.code', read_only=True, label=_('Project Code Label'))
+
     project_code_detail = ProjectCodeSerializer(source='project_code', many=False, read_only=True)
 
     @staticmethod

src/backend/InvenTree/order/serializers.py

@@ -104,8 +104,8 @@ class AbstractOrderSerializer(DataImportExportSerializerMixin, serializers.Seria
         source='responsible', read_only=True, many=False
     )
 
-    project_code = serializers.CharField(
+    project_code_label = serializers.CharField(
-        source='project_code.code', label=_('Project Code'), read_only=True
+        source='project_code.code', read_only=True, label='Project Code Label'
     )
 
     # Detail for project code field
@@ -151,6 +151,7 @@ class AbstractOrderSerializer(DataImportExportSerializerMixin, serializers.Seria
             'completed_lines',
             'link',
             'project_code',
+            'project_code_label',
             'project_code_detail',
             'reference',
             'responsible',

src/backend/InvenTree/order/test_api.py

@@ -1978,6 +1978,18 @@ class ReturnOrderTests(InvenTreeAPITestCase):
         self.assertEqual(reference['required'], True)
         self.assertEqual(reference['type'], 'string')
 
+    def test_project_code(self):
+        """Test the 'project_code' serializer field."""
+        self.assignRole('return_order.add')
+        response = self.options(reverse('api-return-order-list'), expected_code=200)
+        project_code = response.data['actions']['POST']['project_code']
+
+        self.assertFalse(project_code['required'])
+        self.assertFalse(project_code['read_only'])
+        self.assertEqual(project_code['type'], 'related field')
+        self.assertEqual(project_code['label'], 'Project Code')
+        self.assertEqual(project_code['model'], 'projectcode')
+
     def test_list(self):
         """Tests for the list endpoint."""
         url = reverse('api-return-order-list')