AI: address issue #447

backend/app/controllers/tag_descriptions_controller.rb

@@ -1,34 +1,4 @@
 class TagDescriptionsController < ApplicationController
-  rescue_from TagDescriptionOperation::Conflict, with: :render_conflict
-
-  def index
-    locale = resolve_locale!
-    descriptions = HistoryAccess.current(TagDescription.all, TagDescriptionVersion)
-        .where(language_code: locale.language_code).includes(tag: :tag_names)
-        .order(updated_at: :desc, id: :asc)
-    title = params[:title].to_s.strip
-    if title.present?
-      pattern = "%#{ ApplicationRecord.sanitize_sql_like(title) }%"
-      descriptions = descriptions.joins(tag: :tag_names)
-          .where(tag_names: { language_code: locale.language_code, primary_flg: true })
-          .where('tag_names.name LIKE ?', pattern).limit(20)
-    end
-    render json: descriptions.map { WikiPageRepr.tag_description(locale, _1) }
-  end
-
-  def show_by_id
-    locale = resolve_locale!
-    reference = TagDescription.find_by(id: params[:description_id])
-    return head :not_found unless reference
-
-    HistoryAccess.require_current!(reference, TagDescriptionVersion)
-    description = TagDescription.find_by(tag_id: reference.tag_id,
-                                         language_code: locale.language_code)
-    return head :not_found unless description
-
-    render json: representation(description)
-  end
-
   def show
     locale = resolve_locale!
     description = TagDescription.find_by(tag_id: params[:id], language_code: locale.language_code)
@@ -48,25 +18,6 @@ class TagDescriptionsController < ApplicationController
     render json: representation(description)
   end
 
-  def create
-    return head :unauthorized unless current_user
-    return head :forbidden unless current_user.gte_member?
-
-    locale = resolve_locale!
-    title = params[:title].to_s.strip
-    body = params[:body].to_s
-    return render_unprocessable_entity('タイトルは必須です．', field: :title) if title.blank?
-    return render_unprocessable_entity('本文は必須です．', field: :body) if body.blank?
-    return render_unprocessable_entity field: :title if title.include?(':')
-
-    tag_name = TagName.find_by(language_code: locale.language_code, name: title)
-    return render_unprocessable_entity field: :title unless tag_name&.tag
-
-    description = TagDescriptionOperation.create!(
-        locale, tag: tag_name.tag, body:, created_by_user: current_user)
-    render json: representation(description), status: :created
-  end
-
   def update
     return head :unauthorized unless current_user
     return head :forbidden unless current_user.gte_member?
@@ -81,9 +32,7 @@ class TagDescriptionsController < ApplicationController
     description = TagDescription.find_by(tag:, language_code: locale.language_code)
 
     if description
-      TagDescriptionOperation.update_with_title!(
+      TagDescriptionOperation.update!(locale, tag:, body:, updated_by_user: current_user)
-          locale, tag:, body:, title: params[:title], actor: current_user,
-          base_revision_id: params[:base_revision_id].presence)
       description.reload
       render json: representation(description)
     else
@@ -99,20 +48,8 @@ class TagDescriptionsController < ApplicationController
 
   private
 
-  def render_conflict error
-    render json: { error: 'conflict', message: error.message }, status: :conflict
-  end
-
   def representation description
     HistoryAccess.require_current!(description, TagDescriptionVersion)
-    if params[:document] == '1'
-      locale = resolve_locale!
-      version = HistoryAccess.visible(TagDescriptionVersion.all).find_by!(
-          tag_id: description.tag_id, language_code: description.language_code,
-          version_no: description.version_no)
-      return WikiPageRepr.tag_description(locale, description).merge(revision_id: version.id)
-    end
-
     description.as_json(only: [
         :tag_id,
         :language_code,

backend/app/controllers/tag_groups_controller.rb

@@ -1,22 +1,7 @@
 class TagGroupsController < ApplicationController
-  rescue_from TagGroupMarkdownParser::InvalidDocument,
-              TagGroupMarkdownRenderer::UnsupportedStructure, with: :render_document_error
-
   def index
     locale = resolve_locale!
-    groups = HistoryAccess.current(TagGroup.all, TagGroupVersion)
+    groups = HistoryAccess.current(TagGroup.all, TagGroupVersion).includes(:created_by_user, :updated_by_user).order(:id)
-        .includes(:created_by_user, :updated_by_user)
-    if params[:document] == '1'
-      groups = groups.order(updated_at: :desc, id: :asc)
-      title = params[:title].to_s.strip
-      if title.present?
-        pattern = "%#{ ApplicationRecord.sanitize_sql_like(title) }%"
-        groups = groups.where('CONCAT(?, name) LIKE ? OR CONCAT(?, name) LIKE ?',
-                              TagGroupRepr::PREFIX, pattern, 'tag_group:', pattern).limit(20)
-      end
-      return render json: groups.map { WikiPageRepr.tag_group(_1) }
-    end
-    groups = groups.order(:id)
     render json: TagGroupRepr.many(locale, groups.to_a)
   end
 
@@ -25,15 +10,7 @@ class TagGroupsController < ApplicationController
     group = TagGroup.includes(:created_by_user, :updated_by_user).find_by(id: params[:id])
     return head :not_found unless group
 
-    render json: representation(locale, group)
+    render json: TagGroupRepr.one(locale, group)
-  end
-
-  def show_by_name
-    locale = resolve_locale!
-    group = TagGroup.includes(:created_by_user, :updated_by_user).find_by(name: params[:name])
-    return head :not_found unless group
-
-    render json: representation(locale, group)
   end
 
   def create
@@ -41,8 +18,8 @@ class TagGroupsController < ApplicationController
     return head :forbidden unless current_user.gte_member?
 
     locale = resolve_locale!
-    group = TagGroupOperation.create!(locale, **write_attributes(locale), actor: current_user)
+    group = TagGroupOperation.create!(locale, **write_attributes, actor: current_user)
-    render json: representation(locale, group), status: :created
+    render json: TagGroupRepr.one(locale, group), status: :created
   end
 
   def update
@@ -53,39 +30,13 @@ class TagGroupsController < ApplicationController
     group = TagGroup.find_by(id: params[:id])
     return head :not_found unless group
 
-    TagGroupOperation.update!(locale, group:, **write_attributes(locale, group:), actor: current_user)
+    TagGroupOperation.update!(locale, group:, **write_attributes, actor: current_user)
-    render json: representation(locale, group.reload)
+    render json: TagGroupRepr.one(locale, group.reload)
   end
 
   private
 
-  def render_document_error error
+  def write_attributes
-    render_unprocessable_entity(error.message)
-  end
-
-  def representation locale, group
-    representation = TagGroupRepr.one(locale, group)
-    return representation unless params[:document] == '1'
-
-    version = TagGroupRepr.current_version(group)
-    raise ActiveRecord::RecordNotFound unless version
-
-    TagGroupRepr.document(representation, version)
-  end
-
-  def write_attributes locale, group: nil
-    if params.key?(:body)
-      body = params[:body].to_s
-      if body.blank?
-        group ||= TagGroup.new
-        group.errors.add(:body, :blank)
-        raise ActiveRecord::RecordInvalid, group
-      end
-      parsed = TagGroupMarkdownParser.parse(locale, body:, group:)
-      return parsed.except(:compatibility_body).merge(
-          name: params[:name], require_compatibility: true)
-    end
-
     { name: params[:name], description: params[:description],
       members: params[:members], placements: params[:placements] }
   end

backend/app/controllers/wiki_pages_controller.rb

@@ -6,11 +6,6 @@ class WikiPagesController < ApplicationController
   def index
     locale = resolve_locale!
 
-    resource_type = params[:resource_type]
-    unless resource_type.nil? || ['tag_description', 'tag_group'].include?(resource_type)
-      return head :bad_request
-    end
-
     title = params[:title].to_s.strip
     descriptions =
         HistoryAccess.current(TagDescription.all, TagDescriptionVersion)
@@ -19,8 +14,6 @@ class WikiPagesController < ApplicationController
 
     descriptions = descriptions.order(updated_at: :desc, id: :asc)
     tag_groups = HistoryAccess.current(TagGroup.all, TagGroupVersion).order(updated_at: :desc, id: :asc)
-    descriptions = descriptions.none if resource_type == 'tag_group'
-    tag_groups = tag_groups.none if resource_type == 'tag_description'
     if title.present?
       pattern = "%#{ ApplicationRecord.sanitize_sql_like(title) }%"
       descriptions =
@@ -253,8 +246,25 @@ class WikiPagesController < ApplicationController
 
     base_revision_id = params[:base_revision_id].presence
 
-    TagDescriptionOperation.update_with_title!(
+    ApplicationRecord.transaction do
-        locale, tag:, body:, title:, actor: current_user, base_revision_id:)
+      SharedResourceIdAllocator.lock_space!(Tag, 'tags')
+      tag.lock!
+      old_title = tag_name.name
+      if title != old_title
+        TagVersioning.ensure_snapshot!(tag, created_by_user: current_user)
+      end
+
+      tag_name.update!(name: title) if title != old_title
+
+      message = params[:message].presence
+      TagDescriptionOperation.update!(locale, tag:, body:, updated_by_user: current_user,
+                                      message:, base_revision_id:)
+
+      if title != old_title
+        tag.reload
+        TagVersionRecorder.record!(tag:, event_type: :update, created_by_user: current_user)
+      end
+    end
 
     head :ok
   rescue ActiveRecord::RecordInvalid => e
@@ -316,9 +326,21 @@ class WikiPagesController < ApplicationController
   end
 
   def render_group_representation representation, version, body: nil, status: :ok
-    document = TagGroupRepr.document(representation, version)
+    body ||= TagGroupMarkdownRenderer.render(representation)
-    document['body'] = body if body
+    versions = HistoryAccess.visible(TagGroupVersion.all).where(tag_group_id: version.tag_group_id)
-    render json: document, status:
+    pred = versions.find_by(version_no: version.version_no - 1)&.id
+    succ = versions.find_by(version_no: version.version_no + 1)&.id
+    updated_at = version.created_at
+    render json: {
+        'id' => version.tag_group_id,
+        'resource_type' => 'tag_group',
+        'title' => "#{ TagGroupRepr::PREFIX }#{ representation.fetch('name') }",
+        'deprecated_at' => nil,
+        'body' => body,
+        'revision_id' => version.id,
+        'pred' => pred,
+        'succ' => succ,
+        'updated_at' => updated_at }, status:
   rescue TagGroupMarkdownRenderer::UnsupportedStructure => error
     render_unprocessable_entity(error.message)
   end

backend/app/representations/tag_group_repr.rb

@@ -56,21 +56,6 @@ module TagGroupRepr
       'updated_at' => wiki_page.updated_at }
   end
 
-  def document representation, version
-    HistoryAccess.require!(version)
-    versions = HistoryAccess.visible(TagGroupVersion.all)
-        .where(tag_group_id: version.tag_group_id)
-    { 'id' => version.tag_group_id,
-      'resource_type' => 'tag_group',
-      'title' => "#{ PREFIX }#{ representation.fetch('name') }",
-      'deprecated_at' => nil,
-      'body' => TagGroupMarkdownRenderer.render(representation),
-      'revision_id' => version.id,
-      'pred' => versions.find_by(version_no: version.version_no - 1)&.id,
-      'succ' => versions.find_by(version_no: version.version_no + 1)&.id,
-      'updated_at' => version.created_at }
-  end
-
   def current_version group
     HistoryAccess.visible(TagGroupVersion.all).find_by(tag_group_id: group.id, version_no: group.version_no)
   end

backend/app/services/counts_candidates.rb

@@ -6,8 +6,14 @@ class CountsCandidates
 
   def initialize(params)
     QueryState.validate!(params, KEYS)
-    raise ArgumentError unless params.fetch('resource') == 'posts'
+    definition = CountsResourceDefinition.new(params.fetch('resource'))
-    raise ArgumentError unless ['tags', 'tags_json'].include?(params.fetch('field'))
+    fields = ['resource_id', 'user']
+    fields += ['tags', 'tags_json', 'tags.id'] if definition.resource == 'posts'
+    fields << 'members' if definition.resource == 'tag_groups'
+    if definition.resource == 'materials'
+      fields += ['updated_by_user_id', 'file_blob_id', 'source_file_id', 'drive_file_id']
+    end
+    raise ArgumentError unless fields.include?(params.fetch('field'))
 
     @params = params
     @page = Integer(params.fetch('page', '1'), 10)
@@ -18,25 +24,27 @@ class CountsCandidates
   end
 
   def call
+    references = ['tags', 'tags_json', 'tags.id', 'members']
+    return resource_candidates unless references.include?(@params['field'])
+
     options = @params.slice('locale', 'at', 'execution_at', 'timezone')
         .merge('definition' => 'latest', 'resource' => 'tags')
     internal = CountsPopulation.new(options)
-    external = CountsPopulation.new(options.merge('resource' => 'nico_tags',
+    groups_flg = @params['field'] == 'members'
+    external = CountsPopulation.new(options.merge(
+        'resource' => groups_flg ? 'tag_groups' : 'nico_tags',
         'execution_at' => internal.at.iso8601(6)))
     connection = TagVersion.connection
     sources = [[internal, 'internal', 'v.category', 'v.names'],
-               [external, 'external', 'NULL', 'JSON_OBJECT()']]
+        [external, groups_flg ? 'group' : 'external', 'NULL', 'JSON_OBJECT()']]
     sources = sources.map do |population, kind, category, names|
       scope = population.scope.except(:select)
-      if @params['query'].present?
+      identity = "v.#{ population.definition.keys.first }"
-        pattern = "%#{ ApplicationRecord.sanitize_sql_like(@params['query']) }%"
+      scope = search(scope, identity, 'v.name', names)
-        scope = scope.where("(v.name LIKE ? OR CAST(v.tag_id AS CHAR) = ? OR EXISTS (" +
+      value = ['tags.id', 'members'].include?(@params['field']) ?
-            "SELECT 1 FROM JSON_TABLE(COALESCE(JSON_EXTRACT(#{ names }, '$**.name'), " +
+          "CAST(#{ identity } AS CHAR)" : "CONCAT('#{ kind }:', #{ identity })"
-            "JSON_ARRAY()), '$[*]' COLUMNS (name TEXT PATH '$')) candidate_name " +
-            'WHERE candidate_name.name LIKE ?))', pattern, @params['query'], pattern)
-      end
       scope.select(Arel.sql(
-          "CONCAT('#{ kind }:', v.tag_id) AS value, v.tag_id AS id, " +
+          "#{ value } AS value, #{ identity } AS id, " +
           "v.name AS name, #{ names } AS names, #{ category } AS category, '#{ kind }' AS kind"))
           .to_sql
     end
@@ -55,4 +63,63 @@ class CountsCandidates
     { rows: rows.first(LIMIT), page: @page, more: rows.length > LIMIT,
       execution_at: internal.at.iso8601(6) }
   end
+
+  private
+
+  def search(scope, identity, name, names)
+    return scope if @params['query'].blank?
+
+    pattern = "%#{ ApplicationRecord.sanitize_sql_like(@params['query']) }%"
+    scope.where("(#{ name } LIKE ? OR CAST(#{ identity } AS CHAR) = ? OR EXISTS (" +
+        "SELECT 1 FROM JSON_TABLE(COALESCE(JSON_EXTRACT(#{ names }, '$**.name'), " +
+        "JSON_ARRAY()), '$[*]' COLUMNS (name TEXT PATH '$')) candidate_name " +
+        'WHERE candidate_name.name LIKE ?))', pattern, @params['query'], pattern)
+  end
+
+  def resource_candidates
+    options = @params.slice('at', 'execution_at', 'timezone')
+        .merge('resource' => @params.fetch('resource'), 'definition' => 'latest')
+    actor_flg = ['user', 'updated_by_user_id'].include?(@params['field'])
+    options['definition'] = 'history' if actor_flg
+    population = CountsPopulation.new(options)
+    scope = population.scope.except(:select)
+    if actor_flg
+      point = population.timestamp(@params['at']) || population.at
+      raise ArgumentError if point > population.at
+
+      column = @params['field'] == 'user' ? 'created_by_user_id' : 'updated_by_user_id'
+      identities = scope.where('v.created_at <= ?', point).select("v.#{ column }")
+      scope = User.where(id: identities)
+      identity = 'users.id'
+      name = 'users.name'
+      names = 'JSON_OBJECT()'
+    else
+      definition = population.definition
+      column = @params['field'] == 'resource_id' ? definition.keys.first : @params['field']
+      if column == 'drive_file_id'
+        column = 'source_file_id'
+        scope = scope.where('v.source_kind' => 'google_drive_file')
+      end
+      identity = "v.#{ column }"
+      label = ['title', 'name', 'url'].find { definition.fields.key?(_1) }
+      name = label ? "v.#{ label }" : 'NULL'
+      names = definition.resource == 'tags' ? 'v.names' : 'JSON_OBJECT()'
+      if ['file_blob_id', 'source_file_id', 'drive_file_id'].include?(@params['field'])
+        scope = scope.where.not("v.#{ column }" => nil).group(Arel.sql(identity))
+        name = 'v.file_filename'
+      end
+    end
+    scope = search(scope, identity, name, names)
+    title = ['file_blob_id', 'source_file_id', 'drive_file_id'].include?(@params['field']) ?
+        "MIN(#{ name })" : name
+    query = scope.optimizer_hints('MAX_EXECUTION_TIME(10000)').distinct
+        .select(Arel.sql("#{ identity } AS id, #{ title } AS name, #{ names } AS names"))
+        .order(Arel.sql(identity)).limit(LIMIT + 1).offset((@page - 1) * LIMIT)
+    rows = scope.klass.connection.select_all(query.to_sql).to_a.map do |values|
+      values['names'] = JSON.parse(values['names']) if values['names'].is_a?(String)
+      values.merge('value' => values.fetch('id').to_s)
+    end
+    { rows: rows.first(LIMIT), page: @page, more: rows.length > LIMIT,
+      execution_at: population.at.iso8601(6) }
+  end
 end

backend/app/services/tag_description_operation.rb

@@ -37,37 +37,6 @@ class TagDescriptionOperation
     end
   end
 
-  def self.update_with_title! locale, tag:, body:, title:, actor:, base_revision_id: nil
-    return update!(locale, tag:, body:, updated_by_user: actor,
-                   base_revision_id:) if title.nil?
-
-    title = title.to_s.strip
-    tag_name = tag.tag_name(locale.language_code)
-    if title.blank? || title.include?(':') || !tag_name || tag_name.name.include?(':')
-      tag.errors.add(:title, :invalid)
-      raise ActiveRecord::RecordInvalid, tag
-    end
-
-    ApplicationRecord.transaction do
-      SharedResourceIdAllocator.lock_space!(Tag, 'tags')
-      tag.lock!
-      old_title = tag_name.name
-      if title != old_title
-        TagVersioning.ensure_snapshot!(tag, created_by_user: actor)
-      end
-
-      tag_name.update!(name: title) if title != old_title
-
-      update!(locale, tag:, body:, updated_by_user: actor,
-              base_revision_id:)
-
-      if title != old_title
-        tag.reload
-        TagVersionRecorder.record!(tag:, event_type: :update, created_by_user: actor)
-      end
-    end
-  end
-
   def self.record_version! description:, body:, user:
     creating = description.new_record?
     version_no = creating ? 1 : description.version_no + 1

backend/config/routes.rb

@@ -17,11 +17,7 @@ Rails.application.routes.draw do
   resources :locales, only: [:index]
   resources :sitemap_entries, only: [:index, :show], param: :resource
 
-  resources :tag_groups, only: [:index, :show, :create, :update] do
+  resources :tag_groups, only: [:index, :show, :create, :update]
-    collection do
-      get 'name/:name', action: :show_by_name
-    end
-  end
 
   resources :nico_tags, path: 'tags/nico', only: [:index, :show, :update]
 
@@ -32,9 +28,6 @@ Rails.application.routes.draw do
 
   resources :tags, only: [:index, :show] do
     collection do
-      get :descriptions, to: 'tag_descriptions#index'
-      post :descriptions, to: 'tag_descriptions#create'
-      get 'descriptions/:description_id', to: 'tag_descriptions#show_by_id'
       get :autocomplete
       get :'with-depth', action: :with_depth
       get :versions, to: 'tag_versions#index'

frontend/src/App.tsx

@@ -166,13 +166,7 @@ export const pageRoutes = (
 	    robots: 'noindex', authentication: 'user' } },
 	{ path: ':id', element: <MaterialDetailPage/>,
 	  handle: { preload: MaterialDetailPage.preload, sitemap: ['materials'] } }] },
-    { path: 'wiki', element: <LocaleRedirect to="/tag-descriptions"/>,
+    { path: 'wiki', element: <WikiSearchPage/>,
-      handle: { redirectTo: '/tag-descriptions' } },
-    { path: 'tag-descriptions',
-      element: <WikiSearchPage key="tag_description" resourceType="tag_description"/>,
-      handle: { preload: WikiSearchPage.preload, sitemap: ['static'] } },
-    { path: 'tag-groups',
-      element: <WikiSearchPage key="tag_group" resourceType="tag_group"/>,
       handle: { preload: WikiSearchPage.preload, sitemap: ['static'] } },
     { path: 'wiki/:title', element: <WikiDetailPage/>,
       handle: { preload: WikiDetailPage.preload, switchLocale: switchWikiLocale,

frontend/src/components/PostEditForm.tsx

@@ -1,5 +1,6 @@
 import { useEffect, useMemo, useState } from 'react'
 
+import ResourcePickerButton from '@/components/common/ResourcePickerButton'
 import { useLocale } from '@/lib/useLocale'
 import PostOriginalCreatedTimeField from '@/components/PostOriginalCreatedTimeField'
 import FieldError from '@/components/common/FieldError'
@@ -184,7 +185,12 @@ const PostEditForm: FC<Props> = ({ post, onSave }) => {
 	    value={parentPostIds}
 	    disabled={disabled}
 	    errors={fieldErrors.parentPostIds}
-	    onChange={setParentPostIds}/>
+	    onChange={setParentPostIds}
+	    after={<ResourcePickerButton
+		source={{ resource: 'posts', field: 'resource_id' }}
+		values={parentPostIds.split (/\s+/).filter (Boolean)}
+		maximum={Number.MAX_SAFE_INTEGER} disabled={disabled}
+		onSelect={values => setParentPostIds (values.join (' '))}/>}/>
 
 	<PostTagsField
 	    disabled={disabled}

frontend/src/components/TopNav.tsx

@@ -29,7 +29,7 @@ import { fetchWikiPage } from '@/lib/wiki'
 import type { FC, MouseEvent } from 'react'
 
 import type { AvailableLocale, LocaleCode } from '@/lib/locales'
-import type { Material, Menu, MenuVisibleItem, Tag, User, WikiPage } from '@/types'
+import type { Material, Menu, MenuVisibleItem, Tag, User } from '@/types'
 
 type Props = {
     user: User | null
@@ -39,11 +39,10 @@ type NavDensity = 'auto' | 'comfortable' | 'compact'
 
 
 export const menuOutline = (
-    { tag, material, wikiId, wikiResourceType, user, pathName: fullPathname }: {
+    { tag, material, wikiId, user, pathName: fullPathname }: {
 	tag?: Tag | null
 	material?: Material | null
 	wikiId: number | null
-	wikiResourceType?: WikiPage['resourceType']
 	user: User | null
 	pathName: string },
 ): Menu => {
@@ -100,30 +99,17 @@ export const menuOutline = (
 	    visible: materialFlg && Boolean (material?.tag) },
 	  { ...message ('history'), to: `/materials/changes?material_id=${ material?.id }`,
 	    visible: materialFlg }] },
-      ...([
+      { ...message ('wiki'), to: '/wiki', subMenu: [
-	  { key: 'tagDescriptions', path: '/tag-descriptions', type: 'tag_description' },
+	  { ...message ('search'), to: '/wiki' },
-	  { key: 'tagGroups', path: '/tag-groups', type: 'tag_group' }] as const)
+	  { ...message ('create'), to: '/wiki/new', visible: editable },
-	  .map (({ key, path, type }): MenuVisibleItem => {
+	  { ...message ('allHistory'), to: '/wiki/changes' },
-	    const current = (wikiResourceType ?? 'tag_description') === type
+	  { ...message ('help'), to: '/wiki/ヘルプ:Wiki' },
-	    const detailFlg = wikiPageFlg && current
+	  { component: <Separator/>, visible: wikiPageFlg },
-	    const creationPath =
+	  { ...message ('postsWithCount', { count: postCount }), to: `/posts?tags=${ wikiTitle }`,
-		type === 'tag_group'
+	    visible: wikiPageFlg },
-		? `/wiki/new?title=${ encodeURIComponent ('タググループ:') }` : '/wiki/new'
+	  { ...message ('history'), to: `/wiki/changes?id=${ wikiId }`, visible: wikiPageFlg },
-	    return { ...message (key), to: path,
+	  { ...message ('edit'), to: `/wiki/${ wikiId || wikiTitle }/edit`,
-		base: (pathName.startsWith ('/wiki') && current) ? '/wiki' : path,
+	    visible: wikiPageFlg && editable }] },
-		subMenu: [
-		    { ...message ('search'), to: path },
-		    { ...message ('create'), to: creationPath, visible: editable },
-		    { ...message ('allHistory'), to: '/wiki/changes' },
-		    { ...message ('help'), to: '/wiki/ヘルプ:Wiki' },
-		    { component: <Separator/>, visible: detailFlg },
-		    { ...message ('postsWithCount', { count: postCount }),
-		      to: `/posts?tags=${ wikiTitle }`, visible: detailFlg },
-		    { ...message ('history'), to: `/wiki/changes?id=${ wikiId }`,
-		      visible: detailFlg },
-		    { ...message ('edit'), to: `/wiki/${ wikiId || wikiTitle }/edit`,
-		      visible: detailFlg && editable }] }
-	  }),
       { ...message ('help'), to: '/help/home', base: '/help', subMenu: [
 	  { ...message ('search'), to: '/help' },
 	  { ...message ('allHistory'), to: '/help/changes' },
@@ -243,8 +229,7 @@ const TopNav: FC<Props> = ({ user, locales, resolveLocaleSwitch }) => {
       queryKey: materialsKeys.show (effectiveTitle, locale),
       queryFn: () => fetchMaterial (effectiveTitle, locale) })
 
-  const menu = menuOutline ({ tag, material, wikiId,
+  const menu = menuOutline ({ tag, material, wikiId, user, pathName: location.pathname })
-      wikiResourceType: wikiPage?.resourceType, user, pathName: location.pathname })
   const visibleMenu = menu.filter ((item): item is MenuVisibleItem => item.visible ?? true)
   const menuLabels = visibleMenu.map (item => item.name).join ('\u0000')
   const moreMenu = menu.filter (item =>

frontend/src/components/common/CandidatePicker.tsx

@@ -10,16 +10,19 @@ import { useUITranslation } from '@/lib/useUITranslation'
 import { inputClass } from '@/lib/utils'
 
 import type { DialogueFormControls } from '@/lib/dialogues/useDialogue'
-import type { CountsCandidate, CountsDefinition, CountsFieldMetadata }
+import type { CountsResource } from '@/lib/counts'
-    from '@/lib/countsDefinitions'
+import type { CountsCandidate } from '@/lib/countsDefinitions'
 
 
-const CountsCandidatePicker = (
+type CandidateSource = {
-    { field, definition, params, initial, maximum, controls, save }: {
+    resource: CountsResource; field: string; params?: URLSearchParams }
-	field: CountsFieldMetadata; params: URLSearchParams
+
-	definition: CountsDefinition
+const CandidatePicker = (
+    { source, choices = [], categories = [], initial, maximum, controls, onSelect }: {
+	source?: CandidateSource; choices?: CountsCandidate[]
+	categories?: { value: string; label: string }[]
 	initial: (string | number | boolean)[]; maximum: number
-	controls: DialogueFormControls; save: (values: string[]) => void },
+	controls: DialogueFormControls; onSelect: (values: string[]) => void },
 ) => {
   const { label, message } = useUITranslation ('counts')
   const locale = useLocale ()
@@ -29,49 +32,58 @@ const CountsCandidatePicker = (
   const [search, setSearch] = useState ('')
   const [category, setCategory] = useState ('')
   const [page, setPage] = useState (1)
+  const params = source?.params ?? new URLSearchParams ()
   const point = useRef (params.get ('execution_at'))
-  const request = new URLSearchParams ({ field: field.key, query: search, page: String (page) })
+  const resource = source?.resource ?? 'posts'
+  const request = new URLSearchParams ({
+      field: source?.field ?? '', query: search, page: String (page) })
   for (const key of ['timezone', 'at', 'execution_at'])
     if (params.has (key)) request.set (key, params.get (key)!)
   if (countsUseLatest (params)) request.delete ('at')
   if (category) request.set ('category', category)
-  const dynamic = field.candidateSource === 'tags'
+  const dynamic = source != null
   const { data, isFetching: fetching, isError: errorFlg } = useQuery ({
-      queryKey: countsKeys.candidates (request.toString (), locale), enabled: dynamic,
+      queryKey: countsKeys.candidates (resource, request.toString (), locale), enabled: dynamic,
       queryFn: ({ signal }) => {
 	const pinned = new URLSearchParams (request)
 	if (point.current != null) pinned.set ('execution_at', point.current)
-	return fetchCountsCandidates (pinned, locale, signal)
+	return fetchCountsCandidates (resource, pinned, locale, signal)
-      }, retry: false })
+      }, retry: false, staleTime: 0, gcTime: 0 })
   useEffect (() => {
     if (data != null) point.current = data.executionAt
   }, [data])
   useEffect (() => {
     controls.setActions ([{ label: label ('counts:pattern.selection'),
-	onSelect: () => save ([...selected]) }])
+	onSelect: () => onSelect ([...selected]) }])
-  }, [controls, label, save, selected])
+  }, [controls, label, onSelect, selected])
-  const fixed: CountsCandidate[] = (field.choices ?? []).map (choice => ({
+  const rows = dynamic ? data?.rows ?? [] : choices.filter (row =>
-      value: choice.value, name: message (choice.label).text }))
-  const rows = dynamic ? data?.rows ?? [] : fixed.filter (row =>
       row.name?.includes (search))
   const headings: Record<string, string> = {
       id: 'columns.resourceId', name: 'columns.name', category: 'common:categoryLabel',
       kind: 'columns.kind' }
-  const available = dynamic ? ['id', 'name', 'category', 'kind'] : ['name']
+  const referenceFlg = ['tags', 'tags_json', 'tags.id', 'members'].includes (source?.field ?? '')
+  const available =
+      dynamic
+      ? (referenceFlg ? ['id', 'name', 'category', 'kind'] : ['id', 'name']) : ['name']
   const visible = available.filter (column => columns.includes (column))
-  const categories = definition.filterFields?.find (field =>
-      field.candidateSource === 'categories')?.choices ?? []
   const cell = (row: CountsCandidate, column: string) => {
-    if (column === 'category') return row.category == null ? ''
+    if (column === 'category')
-	: message (`common:categories.${row.category}`).text
+      return row.category == null ? '' : message (`common:categories.${row.category}`).text
-    if (column === 'kind') return row.kind == null ? '' : message (`kinds.${row.kind}`).text
+    if (column === 'kind')
+    {
+      const key = row.kind === 'group' ? 'resources.tag_groups' : `kinds.${row.kind}`
+      return row.kind == null ? '' : message (key).text
+    }
     return column === 'id' ? row.id : row.name
   }
   return <div className="min-w-0 space-y-2">
     <div className="flex min-w-0 items-center gap-2">
       <input className={inputClass (false, 'h-9 min-w-0 flex-1')}
-	  aria-label={message ('common:search').text} value={draft}
+	  aria-label={message ('common:search').text} value={draft} maxLength={1000}
-	  onChange={event => setDraft (event.target.value)}
+	  onChange={event => {
+	    const value = event.target.value
+	    if (new TextEncoder ().encode (value).length <= 1000) setDraft (value)
+	  }}
 	  onKeyDown={event => {
 	    if (event.key !== 'Enter') return
 	    event.preventDefault ()
@@ -81,7 +93,7 @@ const CountsCandidatePicker = (
       <Button type="button" onClick={() => { setSearch (draft); setPage (1) }}>
 	{label ('common:search')}</Button>
     </div>
-    {dynamic && <select className={inputClass (false, 'h-9 w-full')}
+    {categories.length > 0 && <select className={inputClass (false, 'h-9 w-full')}
 	aria-label={message ('common:categoryLabel').text} value={category}
 	onChange={event => { setCategory (event.target.value); setPage (1) }}>
       <option value=""/>
@@ -108,12 +120,13 @@ const CountsCandidatePicker = (
 	  {visible.map (column => <th key={column} className="p-2">
 	    {label (headings[column])}</th>)}
 	</tr></thead>
-	<tbody>{rows.map (row => <tr key={row.value} className="border-t dark:border-slate-700">
+	<tbody>{rows.map (row => <tr key={`${row.kind ?? ''}:${row.value}`}
+	    className="border-t dark:border-slate-700">
 	  <td className="p-2"><input type="checkbox" checked={selected.has (row.value)}
 	      aria-label={row.name ?? String (row.id ?? '')}
-	      disabled={!selected.has (row.value) && selected.size >= maximum}
+	      disabled={maximum !== 1 && !selected.has (row.value) && selected.size >= maximum}
 	      onChange={event => setSelected (previous => {
-		const next = new Set (previous)
+		const next = new Set (maximum === 1 ? [] : previous)
 		if (event.target.checked) next.add (row.value)
 		else next.delete (row.value)
 		return next
@@ -128,7 +141,8 @@ const CountsCandidatePicker = (
 	  onClick={() => setPage (previous => previous - 1)}>
 	{label ('common:pagination.previous')}</Button>
       <span>{page}</span>
-      <Button type="button" variant="outline" disabled={!data?.more || fetching}
+      <Button type="button" variant="outline"
+	  disabled={!data?.more || page >= 100_000 || fetching}
 	  onClick={() => setPage (previous => previous + 1)}>
 	{label ('common:pagination.next')}</Button>
     </div>}
@@ -136,4 +150,5 @@ const CountsCandidatePicker = (
 }
 
 
-export default CountsCandidatePicker
+export default CandidatePicker
+export type { CandidateSource }

frontend/src/components/common/ResourcePickerButton.tsx

@@ -0,0 +1,27 @@
+import CandidatePicker from '@/components/common/CandidatePicker'
+import { Button } from '@/components/ui/button'
+import useDialogue from '@/lib/dialogues/useDialogue'
+import { useUITranslation } from '@/lib/useUITranslation'
+
+import type { CandidateSource } from '@/components/common/CandidatePicker'
+
+
+const ResourcePickerButton = (
+    { source, values, maximum = 1, disabled, onSelect }: {
+	source: CandidateSource; values: (string | number | boolean)[]
+	maximum?: number; disabled?: boolean
+	onSelect: (values: string[]) => void },
+) => {
+  const dialogue = useDialogue ()
+  const { label } = useUITranslation ('counts')
+  return <Button type="button" variant="outline" disabled={disabled || maximum === 0}
+      onClick={() => void dialogue.form ({
+	  title: label ('pattern.link'), size: 'large', footerLayout: 'inline',
+	  body: controls => <CandidatePicker source={source} initial={values}
+	      maximum={maximum} controls={controls} onSelect={onSelect}/> })}>
+    {label ('pattern.selection')}
+  </Button>
+}
+
+
+export default ResourcePickerButton

frontend/src/components/counts/CountsAdditionalConditions.tsx

@@ -2,9 +2,10 @@ import { useEffect, useState } from 'react'
 
 import CountsConditionValues from '@/components/counts/CountsConditionValues'
 import DateTimeField from '@/components/common/DateTimeField'
+import ResourcePickerButton from '@/components/common/ResourcePickerButton'
 import { Button } from '@/components/ui/button'
-import { countsConditionInputs, countsEventTypes, countsFieldLabel, countsFilterFields,
+import { countsCandidateSource, countsConditionInputs, countsEventTypes, countsFieldLabel,
-	 countsSetOperators, useCountsDefinition }
+	 countsFilterFields, countsSetOperators, useCountsDefinition }
     from '@/lib/countsDefinitions'
 import useDialogue from '@/lib/dialogues/useDialogue'
 import { countsConditionValue } from '@/lib/countsDisplay'
@@ -15,7 +16,7 @@ import { useUITranslation } from '@/lib/useUITranslation'
 
 import { readCountState, encodeCountState } from '@/lib/queryState'
 
-import type { CountsResult } from '@/lib/counts'
+import type { CountsResource, CountsResult } from '@/lib/counts'
 import type { DialogueFormControls } from '@/lib/dialogues/useDialogue'
 import type { CountsCondition, CountsDefinition } from '@/lib/countsDefinitions'
 
@@ -94,10 +95,12 @@ const ConditionEditor = (
 }
 
 
-const CountsAdditionalConditions = ({ params, update, conditionLabels }: {
+const CountsAdditionalConditions = (
-    conditionLabels?: CountsResult['conditionLabels']
+    { resource, params, update, conditionLabels }: {
-    params: URLSearchParams
+	resource: CountsResource
-    update: (key: string, value: string) => void },
+	conditionLabels?: CountsResult['conditionLabels']
+	params: URLSearchParams
+	update: (key: string, value: string) => void },
 ) => {
   const { label, message } = useUITranslation ('counts')
   const definition = useCountsDefinition ()
@@ -149,11 +152,19 @@ const CountsAdditionalConditions = ({ params, update, conditionLabels }: {
 	  value={condition[key] == null ? '' : String (condition[key])} disabled={condition.blank}
 	  aria-label={aria.text} lang={aria.language}
 	  onChange={value => patch (index, { [key]: value ?? '' })}/>
-    return <input value={condition[key] == null ? '' : String (condition[key])} disabled={condition.blank}
+    const source = countsCandidateSource (resource, condition.field, params)
-	type={(type === 'integer' || type === 'interval') ? 'number' : 'text'}
+    const value = condition[key]
-	className={inputClass (false, 'h-10 w-36 min-w-0 max-w-full py-1')}
+    return <>
-	aria-label={aria.text} lang={aria.language}
+      <input value={condition[key] == null ? '' : String (condition[key])}
-	onChange={event => patch (index, { [key]: event.target.value })}/>
+	  disabled={condition.blank}
+	  type={(type === 'integer' || type === 'interval') ? 'number' : 'text'}
+	  className={inputClass (false, 'h-10 w-36 min-w-0 max-w-full py-1')}
+	  aria-label={aria.text} lang={aria.language}
+	  onChange={event => patch (index, { [key]: event.target.value })}/>
+      {source != null && <ResourcePickerButton source={source} disabled={condition.blank}
+	  values={value == null ? [] : [value]}
+	  onSelect={values => patch (index, { [key]: values[0] ?? '' })}/>}
+    </>
   }
   return <fieldset className="min-w-0 space-y-1">
     <legend className="flex items-center gap-2">{label ('additionalConditions')}
@@ -182,7 +193,7 @@ const CountsAdditionalConditions = ({ params, update, conditionLabels }: {
 	  </Button>
 	  {countsSetOperators.includes (condition.operator) ? (
 	      <CountsConditionValues key={`${condition.field}:${condition.operator}`}
-		  condition={condition}
+		  condition={condition} resource={resource}
 		  field={metadata.find (field => field.key === condition.field)!}
 		  definition={definition} params={params}
 		  maximum={Math.max (0, 100 - conditions.reduce ((sum, item, position) =>

frontend/src/components/counts/CountsConditionValues.tsx

@@ -1,18 +1,22 @@
 import { useState } from 'react'
 
-import CountsCandidatePicker from '@/components/counts/CountsCandidatePicker'
+import CandidatePicker from '@/components/common/CandidatePicker'
 import DateTimeField from '@/components/common/DateTimeField'
+import ResourcePickerButton from '@/components/common/ResourcePickerButton'
 import { Button } from '@/components/ui/button'
+import { countsCandidateSource } from '@/lib/countsDefinitions'
 import useDialogue from '@/lib/dialogues/useDialogue'
 import { inputClass } from '@/lib/utils'
 import { useUITranslation } from '@/lib/useUITranslation'
 
+import type { CountsResource } from '@/lib/counts'
 import type { CountsCondition, CountsDefinition, CountsFieldMetadata }
     from '@/lib/countsDefinitions'
 
 
 const CountsConditionValues = (
-    { condition, field, definition, params, maximum, change }: {
+    { resource, condition, field, definition, params, maximum, change }: {
+	resource: CountsResource
 	condition: CountsCondition; field: CountsFieldMetadata; definition: CountsDefinition
 	params: URLSearchParams; maximum: number
 	change: (values: (string | number | boolean)[]) => void },
@@ -21,11 +25,21 @@ const CountsConditionValues = (
   const dialogue = useDialogue ()
   const [draft, setDraft] = useState ('')
   const values = condition.values ?? []
+  const source = countsCandidateSource (resource, field.key, params)
   const pick = () => {
     void dialogue.form ({ title: label (field.candidateSource === 'tags'
 	? 'counts:pattern.link' : 'counts:pattern.pattern'), size: 'large', footerLayout: 'inline',
-	body: controls => <CountsCandidatePicker field={field} definition={definition}
+	body: controls => <CandidatePicker
-	    params={params} initial={values} maximum={maximum} controls={controls} save={change}/> })
+	    source={
+		field.candidateSource === 'tags'
+		? { resource: 'posts', field: field.key, params } : undefined}
+	    choices={(field.choices ?? []).map (choice => ({
+		value: choice.value, name: message (choice.label).text }))}
+	    categories={
+		field.candidateSource === 'tags'
+		? definition.filterFields?.find (field =>
+		    field.candidateSource === 'categories')?.choices : undefined}
+	    initial={values} maximum={maximum} controls={controls} onSelect={change}/> })
   }
   if (condition.input === 'list' || field.candidateSource === 'tags')
     return <Button type="button" variant="outline" disabled={condition.blank} onClick={pick}>
@@ -73,6 +87,8 @@ const CountsConditionValues = (
 	  onClick={() => change (values.filter ((_, position) => position !== index))}>×</Button>
     </span>)}
     {input ()}
+    {source != null && <ResourcePickerButton source={source} values={values}
+	maximum={maximum} disabled={condition.blank} onSelect={change}/>}
     <Button type="button" variant="outline" disabled={condition.blank || draft === ''
 	|| values.length >= maximum} onClick={append}>{label ('add')}</Button>
     <Button type="button" variant="ghost" disabled={condition.blank}

frontend/src/components/counts/CountsControls.tsx

@@ -7,6 +7,7 @@ import AnimatedCollapse from '@/components/common/AnimatedCollapse'
 import DateTimeField from '@/components/common/DateTimeField'
 import FormField from '@/components/common/FormField'
 import HelpPopover from '@/components/common/HelpPopover'
+import ResourcePickerButton from '@/components/common/ResourcePickerButton'
 import TagInput from '@/components/common/TagInput'
 import { Button } from '@/components/ui/button'
 import { countsRequestParams, countsUseLatest, fieldsForCounts, normaliseCountsParams, readCountSort,
@@ -223,11 +224,17 @@ const CountsControls = (
             {['resource_id', 'user_id'].map (key => <FormField key={key}
                 label={label (key === 'resource_id' ? 'columns.resourceId'
                     : 'fields.actor')}>
-              {() => <input value={draft.get (key) ?? ''}
+              {() => <div className="flex flex-wrap items-center gap-1">
-                  aria-label={message (key === 'resource_id' ? 'columns.resourceId'
+		<input value={draft.get (key) ?? ''}
-                      : 'fields.actor').text}
+		    aria-label={message (key === 'resource_id' ? 'columns.resourceId'
-                  className={inputClass (false, 'w-28 py-1')}
+			: 'fields.actor').text}
-                  onChange={event => update (key, event.target.value)}/>}
+		    className={inputClass (false, 'w-28 py-1')}
+		    onChange={event => update (key, event.target.value)}/>
+		<ResourcePickerButton source={{ resource,
+		    field: key === 'resource_id' ? key : 'user', params: draft }}
+		    values={draft.get (key) ? [draft.get (key)!] : []}
+		    onSelect={values => update (key, values[0] ?? '')}/>
+	      </div>}
             </FormField>)}
           </div>
           {resource === 'posts' && <FormField label={label ('columns.tags')}>
@@ -263,7 +270,7 @@ const CountsControls = (
               </>}
             </div>}
           </FormField>}
-	  <CountsAdditionalConditions params={draft} update={update}
+	  <CountsAdditionalConditions resource={resource} params={draft} update={update}
               conditionLabels={(labelParams != null
                   && draft.get ('current') === labelParams.get ('current')
                   && draft.get ('at') === labelParams.get ('at')

frontend/src/components/dialogues/DialogueProvider.tsx

@@ -227,11 +227,13 @@ const DialogueProvider: FC<Props> = ({ children }) => {
 		       </DialogHeader>
 
 		       <div className="min-h-0 flex-1 overflow-y-auto overscroll-contain">
-			 {active.options.body (
+			 <DialogueProvider key={active.id}>
-			     formControls.current[active.id] ??= {
+			   {active.options.body (
+			       formControls.current[active.id] ??= {
 				 close: () => closeRequest (active.id),
 				 setActions: actions => setRequestActions (active.id, actions),
 				 confirm: options => openNestedConfirm (active.id, options) })}
+			 </DialogueProvider>
 		       </div>
 
 		       <DialogFooter

frontend/src/components/posts/PostCoreDataFields.tsx

@@ -1,3 +1,4 @@
+import ResourcePickerButton from '@/components/common/ResourcePickerButton'
 import PostOriginalCreatedTimeField from '@/components/PostOriginalCreatedTimeField'
 import PostTagsField from '@/components/posts/PostTagsField'
 import PostTextField from '@/components/posts/PostTextField'
@@ -88,7 +89,12 @@ const PostCoreDataFields: FC<PostCoreDataFieldsProps> = (
           disabled={parentPostIds.disabled}
           warnings={parentPostIds.warnings}
           errors={parentPostIds.errors}
-          onChange={parentPostIds.onChange}/>
+          onChange={parentPostIds.onChange}
+	  after={<ResourcePickerButton
+	      source={{ resource: 'posts', field: 'resource_id' }}
+	      values={parentPostIds.value.split (/\s+/).filter (Boolean)}
+	      maximum={Number.MAX_SAFE_INTEGER} disabled={parentPostIds.disabled}
+	      onSelect={values => parentPostIds.onChange (values.join (' '))}/>}/>
     </>)
 
 export default PostCoreDataFields

frontend/src/lib/countsDefinitions.ts

@@ -89,18 +89,19 @@ export const fetchCountsDefinition = (
     .then (definition => localiseCountsDefinition (definition, locale))
 
 export type CountsCandidate = {
-    value: string; id?: number; name: string | null; category?: string | null
+    value: string; id?: number | string; name: string | null; category?: string | null
     names?: Record<string, unknown>
-    kind?: 'internal' | 'external' }
+    kind?: 'internal' | 'external' | 'group' }
 export type CountsCandidatesResult = {
     rows: CountsCandidate[]; page: number; more: boolean; executionAt: string }
 
 export const fetchCountsCandidates = (
+    resource: CountsResource,
     params: URLSearchParams,
     locale: LocaleCode,
     signal?: AbortSignal,
 ): Promise<CountsCandidatesResult> => apiGet (
-    '/counts/definitions/posts/candidates', {
+    `/counts/definitions/${encodeURIComponent (resource)}/candidates`, {
 	params: Object.fromEntries (params), locale, signal })
 
 export const countsSetOperators = ['in', 'not_in', 'any', 'all', 'none']
@@ -155,3 +156,25 @@ export const countsAxisFields = (
     history: boolean,
 ): CountField[] => definition.axes[history ? 'history' : 'latest']
     .map (key => ({ key, label: countsFieldLabel (key) }))
+
+
+export const countsCandidateSource = (
+    resource: CountsResource,
+    field: string,
+    params: URLSearchParams,
+): { resource: CountsResource; field: string; params: URLSearchParams } | undefined => {
+  if (['resource_id', 'user', 'updated_by_user_id', 'file_blob_id', 'source_file_id']
+      .includes (field)) return { resource, field, params }
+  if (field === 'user.id') return { resource, field: 'user', params }
+  if ((field === 'tags.id' && resource === 'posts')
+      || (field === 'members' && resource === 'tag_groups'))
+    return { resource, field, params }
+  const leaf = field.split ('.').at (-1) ?? ''
+  const targets: Record<string, CountsResource> = {
+      tagGroupId: 'tag_groups', tagId: 'tags', tag_id: 'tags', parent_id: 'materials',
+      parents: resource === 'posts' ? 'posts' : 'tags',
+      'parents.id': resource === 'posts' ? 'posts' : 'tags',
+      parent_post_ids: 'posts', parent_tag_ids: 'tags' }
+  const target = targets[field] ?? targets[leaf]
+  return target == null ? undefined : { resource: target, field: 'resource_id', params }
+}

frontend/src/lib/prefetchers.ts

@@ -100,11 +100,10 @@ const prefetchHelpDiff: Prefetcher = async (qc, url, locale) => {
 
 const prefetchWikiPagesIndex: Prefetcher = async (qc, url, locale) => {
   const title = url.searchParams.get ('title') ?? ''
-  const resourceType = url.pathname === '/tag-groups' ? 'tag_group' : 'tag_description'
 
   await qc.prefetchQuery ({
-      queryKey: wikiKeys.index ({ title, resourceType }, locale),
+      queryKey: wikiKeys.index ({ title }, locale),
-      queryFn: () => fetchWikiPages ({ title, resourceType }, locale) })
+      queryFn:  () => fetchWikiPages ({ title }, locale) })
 }
 
 
@@ -311,8 +310,7 @@ export const routePrefetchers: { test: (u: URL) => boolean; run: Prefetcher }[]
 		  && Boolean (mPost (u.pathname))),
       run: prefetchPostShow },
     { test: u => u.pathname === '/posts/changes', run: prefetchPostChanges },
-    { test: u => ['/wiki', '/tag-descriptions', '/tag-groups'].includes (u.pathname),
+    { test: u => u.pathname === '/wiki', run: prefetchWikiPagesIndex },
-      run: prefetchWikiPagesIndex },
     { test: u => (!(['/wiki/new', '/wiki/changes'].includes (u.pathname))
 		  && Boolean (mWiki (u.pathname))),
       run: prefetchWikiPageShow },

frontend/src/lib/queryKeys.ts

@@ -5,7 +5,6 @@ import type {
     FetchPostsParams,
     FetchTagsParams,
     MaterialFilter,
-    WikiPage,
     WikiTagReference } from '@/types'
 
 export const localesKeys = {
@@ -131,7 +130,7 @@ export const wikiKeys = {
     autolinkCandidates: (language: string, locale: LocaleCode) =>
 	['wiki', 'autolink', locale, language] as const,
     index:  (
-    p: { title?: string, resourceType?: WikiPage['resourceType'] },
+    p: { title?: string },
     locale: LocaleCode = 'ja',
 ) => ['wiki', locale, 'index', p] as const,
     show:   (
@@ -175,6 +174,7 @@ export const theatresKeys = {
 export const countsKeys = {
     definition: (resource: string, locale: LocaleCode = 'ja') =>
 	['counts', 'definition', resource, locale] as const,
-    candidates: (params: string, locale: LocaleCode) => ['counts', 'candidates', locale, params] as const,
+    candidates: (resource: string, params: string, locale: LocaleCode) =>
+	['counts', 'candidates', resource, locale, params] as const,
     index: (resource: string, params: string, locale: LocaleCode) =>
 	['counts', resource, locale, params] as const }

frontend/src/lib/wiki.ts

@@ -1,6 +1,6 @@
 import { isAxiosError } from 'axios'
 
-import { apiGet, apiPost, apiPut } from '@/lib/api'
+import { apiGet } from '@/lib/api'
 import { switchLocalePath } from '@/lib/locales'
 import { fetchTag, fetchTagByName } from '@/lib/tags'
 
@@ -24,54 +24,19 @@ export const fetchWikiChanges = (
 
 
 export const fetchWikiPages = async (
-    { title, resourceType = 'tag_description' }: {
+    { title }:  { title?: string },
-	title?: string, resourceType?: WikiPage['resourceType'] },
     locale: LocaleCode = 'ja',
-): Promise<WikiPage[]> => apiGet (
+): Promise<WikiPage[]> =>
-    resourceType === 'tag_group' ? '/tag_groups' : '/tags/descriptions',
+    await apiGet ('/wiki', { locale, params: { title } })
-    { locale, params: { title, document: '1' } })
 
 
 export const fetchWikiPage = async (
-    id: string,
+    id:           string,
-    { version }: { version?: string },
+    { version }:  { version?: string },
     locale: LocaleCode = 'ja',
-): Promise<WikiPage> => {
+): Promise<WikiPage> =>
-  if (version != null)
+    await apiGet (`/wiki/${ encodeURIComponent (id) }`, {
-    return apiGet (`/wiki/${encodeURIComponent (id)}`, { locale, params: { version } })
+	locale, params: version ? { version } : { } })
-  try
-  {
-    return await apiGet (`/tags/descriptions/${encodeURIComponent (id)}`,
-	{ locale, params: { document: '1' } })
-  }
-  catch (error)
-  {
-    if (!isAxiosError (error) || error.response?.status !== 404)
-      throw error
-    return apiGet (`/tag_groups/${encodeURIComponent (id)}`,
-	{ locale, params: { document: '1' } })
-  }
-}
-
-
-export const saveTagDocument = async (
-    { title, body, page }: { title: string, body: string, page?: WikiPage },
-    locale: LocaleCode,
-): Promise<WikiPage> => {
-  const groupName = /^(?:タググループ:|tag_group:)(.*)$/i.exec (title.trim ())?.[1]
-  const options = { locale, params: { document: '1' } }
-  if (page?.resourceType === 'tag_group' || (page == null && groupName != null))
-  {
-    const attributes = { name: groupName ?? title.trim (), body }
-    return page == null
-	? apiPost ('/tag_groups', attributes, options)
-	: apiPut (`/tag_groups/${encodeURIComponent (String (page.id))}`, attributes, options)
-  }
-  if (page == null)
-    return apiPost ('/tags/descriptions', { title, body }, options)
-  return apiPut (`/tags/${encodeURIComponent (String (page.tagId))}/description`,
-      { title, body }, options)
-}
 
 
 export const fetchWikiPageByTitle = async (
@@ -81,14 +46,7 @@ export const fetchWikiPageByTitle = async (
 ): Promise<WikiPage | null> => {
   try
   {
-    if (version != null)
+    return await apiGet (`/wiki/title/${ encodeURIComponent (title) }`, { locale, params: { version } })
-      return await apiGet (`/wiki/title/${encodeURIComponent (title)}`,
-	  { locale, params: { version } })
-    const groupName = /^(?:タググループ:|tag_group:)(.*)$/i.exec (title.trim ())?.[1]
-    const path = groupName == null
-	? `/tags/name/${encodeURIComponent (title)}/description`
-	: `/tag_groups/name/${encodeURIComponent (groupName)}`
-    return await apiGet (path, { locale, params: { document: '1' } })
   }
   catch (error)
   {
@@ -114,7 +72,7 @@ export const fetchWikiPageByReference = async (
   {
     if (!isAxiosError (error) || error.response?.status !== 404)
       throw error
-    const tag = await fetchTagByName (reference, locale)
+    const tag = await fetchWikiTag ({ wikiId: reference }, locale)
     return tag == null ? null : fetchWikiPageByTitle (tag.name, params, locale)
   }
 }
@@ -128,9 +86,7 @@ export const fetchWikiTag = async (
     return fetchTagByName (reference.name, locale)
   try
   {
-    const page = await fetchWikiPage (reference.wikiId, { }, locale)
+    return await apiGet (`/wiki/${encodeURIComponent (reference.wikiId)}/tag`, { locale })
-    return (page.resourceType === 'tag_description' && page.tagId != null)
-	? fetchTag (String (page.tagId), locale) : null
   }
   catch (error)
   {

frontend/src/locales/ain-Kana/navigation.json

@@ -14,8 +14,6 @@
   "materials": "チカㇻペ",
   "suppressions": "アエアイカㇷ゚テㇷ゚",
   "wiki": "Wiki",
-  "tagDescriptions": "$t(counts:resources.tag_descriptions)",
-  "tagGroups": "$t(counts:resources.tag_groups)",
   "create": "アシㇼ",
   "edit": "イヌイェㇷ゚",
   "entertainment": "シノッ",

frontend/src/locales/ja/navigation.json

@@ -13,8 +13,6 @@
   "materials": "素材",
   "suppressions": "抑止",
   "wiki": "Wiki",
-  "tagDescriptions": "$t(counts:resources.tag_descriptions)",
-  "tagGroups": "$t(counts:resources.tag_groups)",
   "create": "新規",
   "edit": "編輯",
   "entertainment": "おたのしみ",

frontend/src/pages/materials/MaterialDetailPage.tsx

@@ -135,7 +135,7 @@ const MaterialDetailPage: FC = () => {
 
 	      <TabGroup>
 		{material.tag && (
-		    <Tab name={label ('navigation:tagDescriptions')}>
+		    <Tab name={label ('navigation:wiki')}>
 		      <WikiBody
 			  title={material.tag.name}
 			  language={localeLanguage (locale)}

frontend/src/pages/materials/MaterialHistoryPage.tsx

@@ -6,6 +6,7 @@ import { useLocale, useLocaleNavigate } from '@/lib/useLocale'
 import PrefetchLink from '@/components/PrefetchLink'
 import FormField from '@/components/common/FormField'
 import PageTitle from '@/components/common/PageTitle'
+import ResourcePickerButton from '@/components/common/ResourcePickerButton'
 import Pagination from '@/components/common/Pagination'
 import MainArea from '@/components/layout/MainArea'
 import PageHead from '@/components/common/PageHead'
@@ -96,13 +97,19 @@ const MaterialHistoryPage: FC = () => {
 	    <div className="space-y-3">
 	      <FormField label={label ('materialId')}>
 		{({ invalid }) => (
-		    <input
+		    <>
+		      <input
 			type="text"
 			value={materialIdInput}
 			aria-label={message ('materialId').text}
 			lang={message ('materialId').language}
 			onChange={e => setMaterialIdInput (e.target.value)}
-			className={inputClass (invalid)}/>)}
+			className={inputClass (invalid)}/>
+		      <ResourcePickerButton
+			source={{ resource: 'materials', field: 'resource_id' }}
+			values={materialIdInput === '' ? [] : [materialIdInput]}
+			onSelect={values => setMaterialIdInput (values[0] ?? '')}/>
+		    </>)}
 	      </FormField>
 
 	      <FormField label={label ('tagName')}>

frontend/src/pages/materials/MaterialSyncSuppressionsPage.tsx

@@ -4,6 +4,7 @@ import { useState } from 'react'
 import { useLocale } from '@/lib/useLocale'
 import FormField from '@/components/common/FormField'
 import PageTitle from '@/components/common/PageTitle'
+import ResourcePickerButton from '@/components/common/ResourcePickerButton'
 import MainArea from '@/components/layout/MainArea'
 import { Button } from '@/components/ui/button'
 import { toast } from '@/components/ui/use-toast'
@@ -126,11 +127,17 @@ const MaterialSyncSuppressionsPage: FC = () => {
 
 	      <FormField label={label ('suppressions.driveFileId')}>
 		{({ invalid }) => (
-		    <input
+		    <>
+		      <input
 			type="text"
 			value={driveFileId}
 			onChange={e => setDriveFileId (e.target.value)}
-			className={inputClass (invalid)}/>)}
+			className={inputClass (invalid)}/>
+		      <ResourcePickerButton
+			source={{ resource: 'materials', field: 'drive_file_id' }}
+			values={driveFileId === '' ? [] : [driveFileId]}
+			onSelect={values => setDriveFileId (values[0] ?? '')}/>
+		    </>)}
 	      </FormField>
 
 	      <FormField label={label ('suppressions.reason')}>

frontend/src/pages/posts/PostListPage.tsx

@@ -176,7 +176,7 @@ const PostListPage: FC = () => {
 	      {loading && label ('common:loading')}
 	    </Tab>
 	    {tags.length === 1 && (
-		<Tab name={label ('navigation:tagDescriptions')}>
+		<Tab name={label ('navigation:wiki')}>
 		  <WikiBody title={tags[0]} body={wikiPage?.body}
 		      language={wikiPage?.languageCode ?? (wikiPage?.resourceType === 'tag_description'
 			  ? localeLanguage (locale) : 'und')}/>

frontend/src/pages/wiki/WikiDetailPage.tsx

@@ -51,8 +51,7 @@ const WikiDetailPage: FC = () => {
       queryKey: helpKeys.titles ('ja'),
       queryFn: () => getHelpTitleIndex ('ja'),
       staleTime: Infinity })
-  const lookupTitle = title.trim ().normalize ('NFKC').toLowerCase ()
+  const lookupTitle = title.trim ().normalize ('NFKC').toLowerCase ().replace (/^ヘルプ:/, '')
-      .replace (/^(?:ヘルプ|手引):/, '')
   const identifiers = useMemo (() => (
       (titleIndex != null && Object.hasOwn (titleIndex, lookupTitle))
       ? titleIndex[lookupTitle] : []), [titleIndex, lookupTitle])

frontend/src/pages/wiki/WikiEditPage.tsx

@@ -11,8 +11,8 @@ import FormField from '@/components/common/FormField'
 import MainArea from '@/components/layout/MainArea'
 import { toast } from '@/components/ui/use-toast'
 import PageHead from '@/components/common/PageHead'
-import { fetchWikiPage, saveTagDocument } from '@/lib/wiki'
+import { apiGet, apiPut } from '@/lib/api'
-import { tagsKeys, wikiKeys } from '@/lib/queryKeys'
+import { wikiKeys } from '@/lib/queryKeys'
 import { canEditContent } from '@/lib/users'
 import { inputClass } from '@/lib/utils'
 import { useValidationErrors } from '@/lib/useValidationErrors'
@@ -33,7 +33,7 @@ const FIXED_WIKI_EDITOR_VIEW = { menu: true, md: true, html: true } as const
 
 type Props = { user: User | null }
 
-type WikiFormField = 'title' | 'name' | 'body'
+type WikiFormField = 'title' | 'body'
 
 
 const WikiEditPage: FC<Props> = ({ user }) => {
@@ -50,7 +50,7 @@ const WikiEditPage: FC<Props> = ({ user }) => {
   const source = `${locale}:${id}`
   const { data: wiki, isPending: loading } = useQuery ({
       queryKey: wikiKeys.show (id ?? '', { }, locale),
-      queryFn: () => fetchWikiPage (id ?? '', { }, locale),
+      queryFn: () => apiGet<WikiPage> (`/wiki/${ encodeURIComponent (id ?? '') }`, { locale }),
       enabled: editable })
   const [body, setBody] = useState (wiki?.body ?? '')
   const [loadedSource, setLoadedSource] = useState (wiki == null ? '' : source)
@@ -60,19 +60,22 @@ const WikiEditPage: FC<Props> = ({ user }) => {
       useValidationErrors<WikiFormField> ()
 
   const handleSubmit = async () => {
-    if (pending || !editable || wiki == null)
+    if (pending || !editable)
       return
     clearValidationErrors ()
 
+    const formData = new FormData ()
+    formData.append ('title', title)
+    formData.append ('body', body)
+
     try
     {
-      await saveTagDocument ({ title, body, page: wiki }, locale)
+      await apiPut (`/wiki/${ id }`, formData,
+		    { locale, headers: { 'Content-Type': 'multipart/form-data' } })
       qc.setQueryData (wikiKeys.show (title, { }, locale),
 		       (prev: WikiPage | undefined) =>
 			   prev == null ? prev : { ...prev, title, body })
-      await Promise.all ([
+      qc.invalidateQueries ({ queryKey: wikiKeys.root })
-	  qc.invalidateQueries ({ queryKey: wikiKeys.root }),
-	  qc.invalidateQueries ({ queryKey: tagsKeys.root })])
       toast ({ title: label ('shared:messages.postSuccess') })
       navigate (`/wiki/${ encodeURIComponent (title) }`)
     }
@@ -107,7 +110,7 @@ const WikiEditPage: FC<Props> = ({ user }) => {
 
 		{/* タイトル */}
 		{/* TODO: タグ補完 */}
-		<FormField label={label ('shared:labels.title')} messages={fieldErrors.title ?? fieldErrors.name}>
+		<FormField label={label ('shared:labels.title')} messages={fieldErrors.title}>
 		  {({ describedBy, invalid }) => (
 		      <input type="text"
 			     value={title}

frontend/src/pages/wiki/WikiNewPage.tsx

@@ -12,7 +12,7 @@ import FormField from '@/components/common/FormField'
 import MainArea from '@/components/layout/MainArea'
 import { toast } from '@/components/ui/use-toast'
 import PageHead from '@/components/common/PageHead'
-import { saveTagDocument } from '@/lib/wiki'
+import { apiPost } from '@/lib/api'
 import { tagsKeys, wikiKeys } from '@/lib/queryKeys'
 import { canEditContent } from '@/lib/users'
 import { inputClass } from '@/lib/utils'
@@ -21,7 +21,7 @@ import Forbidden from '@/pages/Forbidden'
 
 import type { FC } from 'react'
 
-import type { User } from '@/types'
+import type { User, WikiPage } from '@/types'
 
 const mdParser = new MarkdownIt
 const FIXED_WIKI_EDITOR_VIEW = { menu: true, md: true, html: true } as const
@@ -32,7 +32,7 @@ const FIXED_WIKI_EDITOR_VIEW = { menu: true, md: true, html: true } as const
 
 type Props = { user: User | null }
 
-type WikiFormField = 'title' | 'name' | 'body'
+type WikiFormField = 'title' | 'body'
 
 
 const WikiNewPage: FC<Props> = ({ user }) => {
@@ -55,9 +55,14 @@ const WikiNewPage: FC<Props> = ({ user }) => {
   const handleSubmit = async () => {
     clearValidationErrors ()
 
+    const formData = new FormData
+    formData.append ('title', title)
+    formData.append ('body', body)
+
     try
     {
-      const data = await saveTagDocument ({ title, body }, locale)
+      const data = await apiPost<WikiPage> ('/wiki', formData,
+				  { locale, headers: { 'Content-Type': 'multipart/form-data' } })
       await qc.cancelQueries ({ queryKey: wikiKeys.root })
       qc.setQueryData (wikiKeys.show (data.title, { }, locale), data)
       await Promise.all ([
@@ -86,7 +91,7 @@ const WikiNewPage: FC<Props> = ({ user }) => {
 
 	  {/* タイトル */}
 	  {/* TODO: タグ補完 */}
-	  <FormField label={label ('shared:labels.title')} messages={fieldErrors.title ?? fieldErrors.name}>
+	  <FormField label={label ('shared:labels.title')} messages={fieldErrors.title}>
 	    {({ describedBy, invalid }) => (
 		<input type="text"
 		       value={title}

frontend/src/pages/wiki/WikiSearchPage.tsx

@@ -8,7 +8,7 @@ import FormField from '@/components/common/FormField'
 import PageTitle from '@/components/common/PageTitle'
 import MainArea from '@/components/layout/MainArea'
 import PageHead from '@/components/common/PageHead'
-import { fetchWikiPages } from '@/lib/wiki'
+import { apiGet } from '@/lib/api'
 import { wikiKeys } from '@/lib/queryKeys'
 import { dateString, inputClass } from '@/lib/utils'
 
@@ -17,20 +17,16 @@ import type { FormEvent , FC } from 'react'
 import type { WikiPage } from '@/types'
 
 
-const WikiSearchPage: FC<{ resourceType?: WikiPage['resourceType'] }> = (
+const WikiSearchPage: FC = () => {
-    { resourceType = 'tag_description' },
-) => {
   const { message, label } = useUITranslation ('shared')
   const locale = useLocale ()
-  const heading =
-      resourceType === 'tag_group'
-      ? 'navigation:tagGroups' : 'navigation:tagDescriptions'
   const [title, setTitle] = useState ('')
   const [text, setText] = useState ('')
   const [submittedTitle, setSubmittedTitle] = useState ('')
   const { data: results = [], refetch } = useQuery ({
-      queryKey: wikiKeys.index ({ title: submittedTitle, resourceType }, locale),
+      queryKey: wikiKeys.index ({ title: submittedTitle }, locale),
-      queryFn: () => fetchWikiPages ({ title: submittedTitle, resourceType }, locale) })
+      queryFn: () => apiGet<WikiPage[]> ('/wiki', {
+	  locale, params: { title: submittedTitle } }) })
 
   const handleSearch = (ev: FormEvent) => {
     ev.preventDefault ()
@@ -46,10 +42,10 @@ const WikiSearchPage: FC<{ resourceType?: WikiPage['resourceType'] }> = (
 
   return (
       <MainArea>
-	<PageHead title={message (heading)}/>
+	<PageHead title={message ('navigation:wiki')}/>
 
 	<div className="max-w-xl">
-	  <PageTitle>{label (heading)}</PageTitle>
+	  <PageTitle>{label ('navigation:wiki')}</PageTitle>
 	  <form onSubmit={handleSearch} className="space-y-2">
 	    {/* タイトル */}
 	    <FormField label={label ('labels.title')}>