Tbain/253 add tags count

src/library-authoring/library-info/LibraryInfo.test.tsx

@@ -291,7 +291,7 @@ describe('<LibraryInfo />', () => {
     expect(screen.getByText('Settings')).toBeInTheDocument();
   });
 
-  it('renders PublicReadToggle when user can manage team', async () => { 
+  it('renders PublicReadToggle when user can manage team', async () => {
     render();
     const allowSwitch = await screen.findByRole('switch', { name: /allow public read/i });
     expect(allowSwitch).toBeInTheDocument();

src/taxonomy/data/api.ts

@@ -67,12 +67,13 @@ export const apiUrls = {
     pageIndex, pageSize, fullDepth, disablePagination,
   }: { pageIndex: number | null; pageSize: number | null; fullDepth?: boolean; disablePagination?: boolean }) => {
     if (disablePagination) {
-      return makeUrl(`${taxonomyId}/tags/`, { full_depth_threshold: fullDepth ? MAX_TAXONOMY_ITEMS : 0 });
+      return makeUrl(`${taxonomyId}/tags/`, { full_depth_threshold: fullDepth ? MAX_TAXONOMY_ITEMS : 0, include_counts: 'true' });
     }
     return makeUrl(`${taxonomyId}/tags/`, {
       page: (pageIndex ?? 0) + 1,
       page_size: pageSize ?? 10,
       full_depth_threshold: fullDepth ? MAX_TAXONOMY_ITEMS : 0,
+      include_counts: 'true',
     });
   },
   /**

src/taxonomy/data/apiHooks.ts

@@ -13,10 +13,10 @@
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
 import { camelCaseObject } from '@edx/frontend-platform';
 import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
+import { useIntl } from '@edx/frontend-platform/i18n';
 import { apiUrls, ALL_TAXONOMIES, getApiErrorMessage } from './api';
 import * as api from './api';
 import type { QueryOptions, TagListData } from './types';
-import { useIntl } from '@edx/frontend-platform/i18n';
 
 // Query key patterns. Allows an easy way to clear all data related to a given taxonomy.
 // https://github.com/openedx/frontend-app-admin-portal/blob/2ba315d/docs/decisions/0006-tanstack-react-query.rst
@@ -97,6 +97,7 @@ export const useDeleteTaxonomy = () => {
 export const useTaxonomyDetails = (taxonomyId: number) => useQuery({
   queryKey: taxonomyQueryKeys.taxonomyMetadata(taxonomyId),
   queryFn: () => api.getTaxonomy(taxonomyId),
+  refetchOnMount: 'always',
 });
 
 /**
@@ -194,6 +195,7 @@ export const useTagListData = (taxonomyId: number, options: QueryOptions) => {
       return camelCaseObject(data) as TagListData;
     },
     enabled,
+    refetchOnMount: 'always',
   });
 };
 
@@ -228,9 +230,13 @@ export const useCreateTag = (taxonomyId: number) => {
     onSuccess: () => {
       queryClient.invalidateQueries({
         queryKey: taxonomyQueryKeys.taxonomyTagList(taxonomyId),
+        refetchType: 'none',
       });
       // In the metadata, 'tagsCount' (and possibly other fields) will have changed:
-      queryClient.invalidateQueries({ queryKey: taxonomyQueryKeys.taxonomyMetadata(taxonomyId) });
+      queryClient.invalidateQueries({
+        queryKey: taxonomyQueryKeys.taxonomyMetadata(taxonomyId),
+        refetchType: 'none',
+      });
     },
   });
 };

src/taxonomy/tag-list/TagListTable.test.jsx

@@ -61,6 +61,7 @@ const mockTagsResponse = {
       descendant_count: 14,
       _id: 1001,
       sub_tags_url: '/request/to/load/subtags/1',
+      usage_count: 1,
     },
     {
       ...tagDefaults,
@@ -69,6 +70,7 @@ const mockTagsResponse = {
       descendant_count: 10,
       _id: 1002,
       sub_tags_url: '/request/to/load/subtags/2',
+      usage_count: 0,
     },
     {
       ...tagDefaults,
@@ -77,6 +79,7 @@ const mockTagsResponse = {
       descendant_count: 5,
       _id: 1003,
       sub_tags_url: '/request/to/load/subtags/3',
+      usage_count: 3,
     },
     {
       ...tagDefaults,
@@ -86,6 +89,7 @@ const mockTagsResponse = {
       _id: 1111,
       sub_tags_url: null,
       parent_value: 'root tag 1',
+      usage_count: 1,
     },
     {
       ...tagDefaults,
@@ -95,6 +99,7 @@ const mockTagsResponse = {
       _id: 1111,
       sub_tags_url: null,
       parent_value: 'the child tag',
+      usage_count: null,
     },
   ],
 };
@@ -107,7 +112,7 @@ const mockTagsPaginationResponse = {
   start: 0,
   results: [],
 };
-const rootTagsListUrl = 'http://localhost:18010/api/content_tagging/v1/taxonomies/1/tags/?full_depth_threshold=10000';
+const rootTagsListUrl = 'http://localhost:18010/api/content_tagging/v1/taxonomies/1/tags/?full_depth_threshold=10000&include_counts=true';
 const subTagsResponse = {
   next: null,
   previous: null,
@@ -217,6 +222,13 @@ describe('<TagListTable />', () => {
     expect(rows.length).toBe(3 + 1); // 3 items plus header
     expect(within(rows[0]).getAllByRole('columnheader')[0].textContent).toEqual('Tag name');
     expect(within(rows[1]).getAllByRole('cell')[0].textContent).toEqual('root tag 1');
+    expect(within(rows[0]).getAllByRole('columnheader')[1].textContent).toEqual('Usage Count');
+  });
+
+  it('should render usage count correctly for root tag', async () => {
+    const rows = screen.getAllByRole('row');
+    expect(rows.length).toBe(3 + 1); // 3 items plus header
+    expect(within(rows[1]).getAllByRole('cell')[1].textContent).toEqual('1');
   });
 
   it('should render page correctly with subtags', async () => {
@@ -226,6 +238,36 @@ describe('<TagListTable />', () => {
     expect(childTag).toBeInTheDocument();
   });
 
+  it('should render usage count correctly for sub tag', async () => {
+    // Expand all tags and await for child tag to render
+    const expandButton = screen.getAllByText('Expand All')[0];
+    fireEvent.click(expandButton);
+    const childTag = await screen.findByText('the child tag');
+    expect(childTag).toBeInTheDocument();
+
+    const rows = screen.getAllByRole('row');
+    expect(rows.length).toBe(5 + 1); // 5 items plus header
+    expect(within(rows[2]).getAllByRole('cell')[1].textContent).toEqual('1');
+  });
+
+  it('should render usage count as empty/no content when usage count is "0"', async () => {
+    const rows = screen.getAllByRole('row');
+    expect(rows.length).toBe(3 + 1); // 3 items plus header
+    expect(within(rows[2]).getAllByRole('cell')[1].textContent).toEqual('');
+  });
+
+  it('should render usage count as empty/no when usage count is "null"', async () => {
+    // Expand all tags and await for child tag to render
+    const expandButton = screen.getAllByText('Expand All')[0];
+    fireEvent.click(expandButton);
+    const childTag = await screen.findByText('the child tag');
+    expect(childTag).toBeInTheDocument();
+
+    const rows = screen.getAllByRole('row');
+    expect(rows.length).toBe(5 + 1); // 5 items plus header
+    expect(within(rows[4]).getAllByRole('cell')[1].textContent).toEqual('');
+  });
+
   it('should not render pagination footer if too few results', async () => {
     axiosMock.onGet(rootTagsListUrl).reply(200, mockTagsResponse);
     renderTagListTable();

src/taxonomy/tag-list/TagListTable.tsx

@@ -3,7 +3,6 @@ import React, {
   useMemo,
   useEffect,
 } from 'react';
-import { useIntl } from '@edx/frontend-platform/i18n';
 import type { PaginationState } from '@tanstack/react-table';
 import { useTagListData, useCreateTag } from '../data/apiHooks';
 import { TagTree } from './tagTree';
@@ -40,7 +39,6 @@ const TagListTable = ({ taxonomyId, maxDepth }: TagListTableProps) => {
   // TODO: Simpler approaches have been suggested. Two options are to just use simple React state:
   // `isCurrentlyEditingTag` and `lastCreatedTag`, or to use optimistic updates.
   // For reference, see https://github.com/openedx/frontend-app-authoring/pull/2872#discussion_r2880965005.
-  const intl = useIntl();
 
   const [creatingParentId, setCreatingParentId] = useState<RowId | null>(null);
   const [editingRowId, setEditingRowId] = useState<RowId | null>(null);

src/taxonomy/tag-list/messages.ts

@@ -5,6 +5,10 @@ const messages = defineMessages({
     id: 'course-authoring.tag-list.column.value.header',
     defaultMessage: 'Tag name',
   },
+  tagListColumnCountHeader: {
+    id: 'course-authoring.tag-list.column.count.header',
+    defaultMessage: 'Usage Count',
+  },
   tagListError: {
     id: 'course-authoring.tag-list.error',
     defaultMessage: 'Error: unable to load child tags',

src/taxonomy/tag-list/tagColumns.tsx

@@ -1,4 +1,5 @@
 import {
+  Bubble,
   Button,
   Icon,
   IconButton,
@@ -24,6 +25,7 @@ interface TagListRowData extends TreeRowData {
   depth: number;
   childCount: number;
   descendantCount: number;
+  usageCount?: number;
   isNew?: boolean;
   isEditing?: boolean;
 }
@@ -47,6 +49,17 @@ interface GetColumnsArgs {
   creatingParentId: RowId | null;
 }
 
+const UsageCountDisplay = ({ row }: { row: Row<TreeRowData> }) => {
+  const count = asTagListRowData(row).usageCount ?? 0;
+  return (
+    count > 0 && (
+      <Bubble expandable>
+        {count}
+      </Bubble>
+    )
+  );
+};
+
 interface ActionsHeaderProps {
   onStartDraft: () => void;
   setDraftError: (error: string) => void;
@@ -120,7 +133,7 @@ const ActionsMenu = ({ rowData, startSubtagDraft, disableAddSubtag }: ActionsMen
       </Dropdown.Menu>
     </Dropdown>
   );
-}
+};
 
 function getColumns({
   setIsCreatingTopTag,
@@ -135,6 +148,7 @@ function getColumns({
 }: GetColumnsArgs): TreeColumnDef[] {
   const canAddSubtag = (row: Row<TreeRowData>) => row.depth < maxDepth;
   const draftInProgressHintId = 'tag-list-draft-in-progress-hint';
+  const intl = useIntl();
 
   return [
     {
@@ -153,6 +167,11 @@ function getColumns({
         );
       },
     },
+    {
+      id: 'count',
+      header: intl.formatMessage(messages.tagListColumnCountHeader),
+      cell: UsageCountDisplay,
+    },
     {
       id: 'actions',
       header: () => (