frontend/src/components/common/PageTitle.tsx

@@ -4,7 +4,7 @@ import { cn } from '@/lib/utils'
 
 import type { FC } from 'react'
 
-type Props = { children: React.ReactNode }
+type Props = { children: React.ReactNode; className?: string }
 
 
 const PageTitle: FC<Props> = ({ children, className, ...rest }) => (

frontend/src/pages/materials/MaterialDetailPage.tsx

@@ -8,7 +8,6 @@ import WikiBody from '@/components/WikiBody'
 import FieldError from '@/components/common/FieldError'
 import FormField from '@/components/common/FormField'
 import PageTitle from '@/components/common/PageTitle'
-import PrefetchLink from '@/components/PrefetchLink'
 import TabGroup, { Tab } from '@/components/common/TabGroup'
 import TagInput from '@/components/common/TagInput'
 import MainArea from '@/components/layout/MainArea'

frontend/src/pages/materials/MaterialListPage.tsx

@@ -52,10 +52,6 @@ const SORT_LABELS: Record<MaterialIndexSort, string> = {
     version_no:     'バージョン',
     id:             'ID'}
 
-const GROUP_BY_LABELS: Record<MaterialIndexGroupBy, string> = {
-    none:       'オフ',
-    parent_tag: '親タグ'}
-
 
 const setIf = (qs: URLSearchParams, key: string, value: string | null) => {
   const next = value?.trim ()
@@ -94,14 +90,16 @@ const groupedTagPath = (
 
 const materialNewPath = (
     tagName: string,
-    returnTo: string): string =>
+    returnTo: string,
+): string =>
     `/materials/new?tag=${ encodeURIComponent (tagName) }`
     + `&return_to=${ encodeURIComponent (returnTo) }`
 
 
 const clearedTagSelectionPath = (
     locationSearch: string,
-    materialFilter: MaterialFilter): string => {
+    materialFilter: MaterialFilter,
+): string => {
     const qs = new URLSearchParams (locationSearch)
     qs.delete ('tag_id')
     qs.delete ('include_descendants')
@@ -190,10 +188,9 @@ const MaterialListItem: FC<{ material: Material }> = ({ material }) => (
 const GroupHeading: FC<{
     count:          number
     materialFilter: MaterialFilter
-    returnTo:       string
     title:          string
     tagId:          number
-}> = ({ count, materialFilter, returnTo, title, tagId }) => (
+}> = ({ count, materialFilter, title, tagId }) => (
     <div className="flex items-center gap-2 border-b border-stone-200 pb-2
 		    dark:border-stone-700">
       <PrefetchLink
@@ -378,8 +375,7 @@ const MaterialListPage: FC = () => {
 		    tagId={group.tag.id}
 		    title={group.tag.name}
 		    count={group.count}
-		    materialFilter={materialFilter}
-		    returnTo={location.pathname + location.search}/>
+		    materialFilter={materialFilter}/>
 		{renderMaterialCollection (groupMaterials)}
 	      </section>)
 	})}
@@ -601,7 +597,7 @@ const MaterialListPage: FC = () => {
 	  {(!isLoading && !isError && materials.length === 0) && (
 	      <p>
 		素材はありません。
-		{['character', 'material'].includes (tagScope?.tag.category) && (
+		{(tagScope && ['character', 'material'].includes (tagScope.tag.category)) && (
 		    <>
 		      <PrefetchLink
 			  to={materialNewPath (tagScope.tag.name, location.pathname + location.search)}