Generic status endpoint fixes (#10530)

* Allow querying for generic status by class name, add schema return type for AllStatusViews

* Bump version api

* Fix tests

src/backend/InvenTree/InvenTree/api_version.py

@@ -1,12 +1,16 @@
 """InvenTree API version information."""
 
 # InvenTree API version
-INVENTREE_API_VERSION = 404
+INVENTREE_API_VERSION = 405
 
 """Increment this API version number whenever there is a significant change to the API that any clients need to know about."""
 
 INVENTREE_API_TEXT = """
 
+v405 -> 2025-10-07: https://github.com/inventree/InvenTree/pull/10530
+    - Add response to generic/status endpoint
+    - Fix logic for generic status model lookup to allow searching by class name string
+
 v404 -> 2025-10-06: https://github.com/inventree/InvenTree/pull/10497
     - Add minimum_stock to PartBrief api response
 

src/backend/InvenTree/generic/states/api.py

@@ -4,6 +4,7 @@ import inspect
 
 from django.urls import include, path
 
+from drf_spectacular.types import OpenApiTypes
 from drf_spectacular.utils import OpenApiResponse, extend_schema
 from rest_framework import serializers
 from rest_framework.generics import GenericAPIView
@@ -14,6 +15,7 @@ import common.serializers
 import InvenTree.permissions
 from data_exporter.mixins import DataExportViewMixin
 from InvenTree.filters import SEARCH_ORDER_FILTER
+from InvenTree.helpers import inheritors
 from InvenTree.mixins import ListCreateAPI, RetrieveUpdateDestroyAPI
 from InvenTree.serializers import EmptySerializer
 
@@ -64,11 +66,20 @@ class StatusView(GenericAPIView):
         """Perform a GET request to learn information about status codes."""
         status_class = self.get_status_model()
 
+        if isinstance(status_class, str):
+            # Attempt to convert string to class
+            status_classes = inheritors(StatusCode)
+
+            for cls in status_classes:
+                if cls.__name__ == status_class:
+                    status_class = cls
+                    break
+
         if not inspect.isclass(status_class):
-            raise NotImplementedError('`status_class` not a class')
+            raise NotImplementedError(f'`{status_class}` not a class')
 
         if not issubclass(status_class, StatusCode):
-            raise NotImplementedError('`status_class` not a valid StatusCode class')
+            raise NotImplementedError(f'`{status_class}` not a valid StatusCode class')
 
         data = {'status_class': status_class.__name__, 'values': status_class.dict()}
 
@@ -99,11 +110,20 @@ class AllStatusViews(StatusView):
     permission_classes = [InvenTree.permissions.IsAuthenticatedOrReadScope]
     serializer_class = EmptySerializer
 
-    @extend_schema(operation_id='generic_status_retrieve_all')
+    # Specifically disable pagination for this view
+    pagination_class = None
+
+    @extend_schema(
+        operation_id='generic_status_retrieve_all',
+        responses={
+            200: OpenApiResponse(
+                description='Mapping from class name to GenericStateClass data',
+                response=OpenApiTypes.OBJECT,
+            )
+        },
+    )
     def get(self, request, *args, **kwargs):
         """Perform a GET request to learn information about status codes."""
-        from InvenTree.helpers import inheritors
-
         data = {}
 
         # Find all inherited status classes

src/backend/InvenTree/generic/states/tests.py

@@ -172,34 +172,37 @@ class GeneralStateTest(InvenTreeTestCase):
         rqst = RequestFactory().get('status/')
         force_authenticate(rqst, user=self.user)
 
-        # Correct call
-        resp = view(rqst, **{StatusView.MODEL_REF: GeneralStatus})
-        self.assertDictEqual(
-            resp.data,
-            {
-                'status_class': 'GeneralStatus',
-                'values': {
-                    'COMPLETE': {
-                        'key': 30,
-                        'name': 'COMPLETE',
-                        'label': 'Complete',
-                        'color': 'success',
-                    },
-                    'PENDING': {
-                        'key': 10,
-                        'name': 'PENDING',
-                        'label': 'Pending',
-                        'color': 'secondary',
-                    },
-                    'PLACED': {
-                        'key': 20,
-                        'name': 'PLACED',
-                        'label': 'Placed',
-                        'color': 'primary',
-                    },
+        expected = {
+            'status_class': 'GeneralStatus',
+            'values': {
+                'COMPLETE': {
+                    'key': 30,
+                    'name': 'COMPLETE',
+                    'label': 'Complete',
+                    'color': 'success',
+                },
+                'PENDING': {
+                    'key': 10,
+                    'name': 'PENDING',
+                    'label': 'Pending',
+                    'color': 'secondary',
+                },
+                'PLACED': {
+                    'key': 20,
+                    'name': 'PLACED',
+                    'label': 'Placed',
+                    'color': 'primary',
                 },
             },
-        )
+        }
+
+        # Correct call (class)
+        resp = view(rqst, **{StatusView.MODEL_REF: GeneralStatus})
+        self.assertDictEqual(resp.data, expected)
+
+        # Correct call (name)
+        resp = view(rqst, **{StatusView.MODEL_REF: 'GeneralStatus'})
+        self.assertDictEqual(resp.data, expected)
 
         # No status defined
         resp = view(rqst, **{StatusView.MODEL_REF: None})
@@ -212,13 +215,13 @@ class GeneralStateTest(InvenTreeTestCase):
         # Invalid call - not a class
         with self.assertRaises(NotImplementedError) as e:
             resp = view(rqst, **{StatusView.MODEL_REF: 'invalid'})
-        self.assertEqual(str(e.exception), '`status_class` not a class')
+        self.assertEqual(str(e.exception), '`invalid` not a class')
 
         # Invalid call - not the right class
         with self.assertRaises(NotImplementedError) as e:
             resp = view(rqst, **{StatusView.MODEL_REF: object})
         self.assertEqual(
-            str(e.exception), '`status_class` not a valid StatusCode class'
+            str(e.exception), "`<class 'object'>` not a valid StatusCode class"
         )