Part category parameters (#12165)

* Add parameter support for PartCategory

* Update frontend

* Bump API version

* Update CHANGELOG

src/backend/InvenTree/InvenTree/api_version.py

@@ -1,11 +1,14 @@
 """InvenTree API version information."""
 
 # InvenTree API version
-INVENTREE_API_VERSION = 504
+INVENTREE_API_VERSION = 505
 """Increment this API version number whenever there is a significant change to the API that any clients need to know about."""
 
 INVENTREE_API_TEXT = """
 
+v505 -> 2026-06-15 : https://github.com/inventree/InvenTree/pull/12165
+    - Allow parameters to be specified against the PartCategory model
+
 v504 -> 2026-06-13 : https://github.com/inventree/InvenTree/pull/12139
     - Adjustments to the SelectionList and SelectionListEntry API endpoints to support more efficient queries and data retrieval
 

src/backend/InvenTree/part/models.py

@@ -68,6 +68,7 @@ logger = structlog.get_logger('inventree')
 
 class PartCategory(
     InvenTree.models.PluginValidationMixin,
+    InvenTree.models.InvenTreeParameterMixin,
     InvenTree.models.MetadataMixin,
     InvenTree.models.PathStringMixin,
     InvenTree.models.InvenTreeTree,

src/backend/InvenTree/part/serializers.py

@@ -103,6 +103,8 @@ class CategorySerializer(
             'structural',
             'icon',
             'parent_default_location',
+            # Optional fields
+            'parameters',
         ]
         read_only_fields = ['level', 'pathstring']
 
@@ -176,6 +178,8 @@ class CategorySerializer(
 
     parent_default_location = serializers.IntegerField(read_only=True, allow_null=True)
 
+    parameters = common.filters.enable_parameters_filter()
+
 
 class CategoryTree(InvenTree.serializers.InvenTreeModelSerializer):
     """Serializer for PartCategory tree."""

src/frontend/src/pages/part/CategoryDetail.tsx

@@ -35,6 +35,7 @@ import InstanceDetail from '../../components/nav/InstanceDetail';
 import NavigationTree from '../../components/nav/NavigationTree';
 import { PageDetail } from '../../components/nav/PageDetail';
 import { PanelGroup } from '../../components/panels/PanelGroup';
+import ParametersPanel from '../../components/panels/ParametersPanel';
 import SegmentedControlPanel from '../../components/panels/SegmentedControlPanel';
 import { partCategoryFields } from '../../forms/PartForms';
 import {
@@ -323,9 +324,14 @@ export default function CategoryDetail() {
           />
         )
       },
+      ParametersPanel({
+        model_type: ModelType.partcategory,
+        model_id: category?.pk,
+        hidden: !id || !category.pk
+      }),
       {
         name: 'category_parameters',
-        label: t`Category Parameters`,
+        label: t`Parameter Templates`,
         icon: <IconListCheck />,
         hidden: !id || !category.pk,
         content: <PartCategoryTemplateTable categoryId={category?.pk} />

src/frontend/src/tables/part/PartCategoryTemplateTable.tsx

@@ -1,5 +1,5 @@
 import { t } from '@lingui/core/macro';
-import { Group, Text } from '@mantine/core';
+import { Alert, Group, Stack, Text } from '@mantine/core';
 import { useCallback, useMemo, useState } from 'react';
 
 import { AddItemButton } from '@lib/components/AddItemButton';
@@ -15,6 +15,7 @@ import useTable from '@lib/hooks/UseTable';
 import type { TableFilter } from '@lib/types/Filters';
 import type { ApiFormFieldSet } from '@lib/types/Forms';
 import type { TableColumn } from '@lib/types/Tables';
+import { IconInfoCircle } from '@tabler/icons-react';
 import {
   useCreateApiFormModal,
   useDeleteApiFormModal,
@@ -152,6 +153,15 @@ export default function PartCategoryTemplateTable({
       {newTemplate.modal}
       {editTemplate.modal}
       {deleteTemplate.modal}
+      <Alert
+        color='blue'
+        icon={<IconInfoCircle />}
+        title={t`Part Category Parameters Templates`}
+      >
+        <Stack gap='xs'>
+          <Text>{t`Parts which are created within this category will inherit the default values specified here.`}</Text>
+        </Stack>
+      </Alert>
       <InvenTreeTable
         url={apiUrl(ApiEndpoints.category_parameter_list)}
         tableState={table}