#68 テスト・ケース作成

backend/app/controllers/posts_controller.rb

@@ -2,88 +2,41 @@ class PostsController < ApplicationController
   Event = Struct.new(:post, :tag, :user, :change_type, :timestamp, keyword_init: true)
 
   def index
-    url = params[:url].presence
-    title = params[:title].presence
-    original_created_from = params[:original_created_from].presence
-    original_created_to = params[:original_created_to].presence
-    created_between = params[:created_from].presence, params[:created_to].presence
-    updated_between = params[:updated_from].presence, params[:updated_to].presence
-
-    order = params[:order].to_s.split(':', 2).map(&:strip)
-    unless order[0].in?(['title', 'url', 'original_created_at', 'created_at', 'updated_at'])
-      order[0] = 'original_created_at'
-    end
-    unless order[1].in?(['asc', 'desc'])
-      order[1] =
-          if order[0].in?(['title', 'url'])
-            'asc'
-          else
-            'desc'
-          end
-    end
-
     page = (params[:page].presence || 1).to_i
     limit = (params[:limit].presence || 20).to_i
+    cursor = params[:cursor].presence
 
     page = 1 if page < 1
     limit = 1 if limit < 1
 
     offset = (page - 1) * limit
 
-    pt_max_sql =
-        PostTag
-        .select('post_id, MAX(updated_at) AS max_updated_at')
-        .group('post_id')
-        .to_sql
-
-    updated_at_all_sql =
-        'GREATEST(posts.updated_at,' +
-        'COALESCE(pt_max.max_updated_at, posts.updated_at))'
-
-    q =
-        filtered_posts
-        .joins("LEFT JOIN (#{ pt_max_sql }) pt_max ON pt_max.post_id = posts.id")
-        .reselect('posts.*', Arel.sql("#{ updated_at_all_sql } AS updated_at_all"))
-        .preload(tags: { tag_name: :wiki_page })
-        .with_attached_thumbnail
-
-    q = q.where('posts.url LIKE ?', "%#{ url }%") if url
-    q = q.where('posts.title LIKE ?', "%#{ title }%") if title
-    if original_created_from
-      q = q.where('posts.original_created_before > ?', original_created_from)
-    end
-    if original_created_to
-      q = q.where('posts.original_created_from <= ?', original_created_to)
-    end
-    q = q.where('posts.created_at >= ?', created_between[0]) if created_between[0]
-    q = q.where('posts.created_at <= ?', created_between[1]) if created_between[1]
-    if updated_between[0]
-      q = q.where("#{ updated_at_all_sql } >= ?", updated_between[0])
-    end
-    if updated_between[1]
-      q = q.where("#{ updated_at_all_sql } <= ?", updated_between[1])
-    end
-
     sort_sql =
-        case order[0]
-        when 'original_created_at'
-          'COALESCE(posts.original_created_before - INTERVAL 1 MINUTE,' +
+        'COALESCE(posts.original_created_before - INTERVAL 1 SECOND,' +
         'posts.original_created_from,' +
         'posts.created_at)'
-        when 'updated_at'
-          updated_at_all_sql
+    q =
+        filtered_posts
+        .preload(tags: { tag_name: :wiki_page })
+        .with_attached_thumbnail
+        .select("posts.*, #{ sort_sql } AS sort_ts")
+        .order(Arel.sql("#{ sort_sql } DESC"))
+    posts =
+        if cursor
+          q.where("#{ sort_sql } < ?", Time.iso8601(cursor)).limit(limit + 1)
         else
-          "posts.#{ order[0] }"
+          q.limit(limit).offset(offset)
         end
-    posts = q.order(Arel.sql("#{ sort_sql } #{ order[1] }, id #{ order[1] }"))
-             .limit(limit)
-             .offset(offset)
         .to_a
 
-    q = q.except(:select, :order)
+    next_cursor = nil
+    if cursor && posts.length > limit
+      next_cursor = posts.last.read_attribute('sort_ts').iso8601(6)
+      posts = posts.first(limit)
+    end
 
     render json: { posts: posts.map { |post|
-      PostRepr.base(post).merge(updated_at: post.updated_at_all).tap do |json|
+      PostRepr.base(post).tap do |json|
         json['thumbnail'] =
             if post.thumbnail.attached?
               rails_storage_proxy_url(post.thumbnail, only_path: false)
@@ -91,7 +44,11 @@ class PostsController < ApplicationController
               nil
             end
       end
-    }, count: q.group_values.present? ? q.count.size : q.count }
+    }, count: if filtered_posts.group_values.present?
+      filtered_posts.count.size
+    else
+      filtered_posts.count
+    end, next_cursor: }
   end
 
   def random
@@ -106,7 +63,7 @@ class PostsController < ApplicationController
   end
 
   def show
-    post = Post.includes(tags: { tag_name: :wiki_page }).find_by(id: params[:id])
+    post = Post.includes(tags: { tag_name: :wiki_page }).find(params[:id])
     return head :not_found unless post
 
     viewed = current_user&.viewed?(post) || false
@@ -245,18 +202,40 @@ class PostsController < ApplicationController
   end
 
   def filter_posts_by_tags tag_names, match_type
-    tag_names = TagName.canonicalise(tag_names)
+    literals = tag_names.map do |raw_name|
+      { name: TagName.canonicalise(raw_name.sub(/\Anot:/i, '')).first,
+        negative: raw_name.downcase.start_with?('not:') }
+    end
 
-    posts = Post.joins(tags: :tag_name)
+    return Post.all if literals.empty?
 
     if match_type == 'any'
-      posts.where(tag_names: { name: tag_names }).distinct
+      literals.reduce(Post.none) do |posts, literal|
+        posts.or(tag_literal_relation(literal[:name], negative: literal[:negative]))
+      end
     else
-      posts.where(tag_names: { name: tag_names })
-           .group('posts.id')
-           .having('COUNT(DISTINCT tag_names.id) = ?', tag_names.uniq.size)
+      literals.reduce(Post.all) do |posts, literal|
+        ids = tagged_post_ids_for(literal[:name])
+        if literal[:negative]
+          posts.where.not(id: ids)
+        else
+          posts.where(id: ids)
         end
       end
+    end
+  end
+
+  def tag_literal_relation name, negative:
+    ids = tagged_post_ids_for(name)
+    if negative
+      Post.where.not(id: ids)
+    else
+      Post.where(id: ids)
+    end
+  end
+
+  def tagged_post_ids_for(name) =
+      Post.joins(tags: :tag_name).where(tag_names: { name: }).select(:id)
 
   def sync_post_tags! post, desired_tags
     desired_tags.each do |t|

backend/app/controllers/tags_controller.rb

@@ -17,8 +17,7 @@ class TagsController < ApplicationController
   end
 
   def autocomplete
-    q = params[:q].to_s.strip
-    return render json: [] if q.blank?
+    q = params[:q].to_s.strip.sub(/\Anot:/i, '')
 
     with_nico = bool?(:nico, default: true)
     present_only = bool?(:present, default: true)

backend/spec/requests/posts_spec.rb

@@ -1,8 +1,7 @@
-include ActiveSupport::Testing::TimeHelpers
-
 require 'rails_helper'
 require 'set'
 
+
 RSpec.describe 'Posts API', type: :request do
   # create / update で thumbnail.attach は走るが、
   # resized_thumbnail! が MiniMagick 依存でコケやすいので request spec ではスタブしとくのが無難。
@@ -16,7 +15,7 @@ RSpec.describe 'Posts API', type: :request do
   end
 
   let!(:tag_name) { TagName.create!(name: 'spec_tag') }
-  let!(:tag)      { Tag.create!(tag_name: tag_name, category: 'general') }
+  let!(:tag)      { Tag.create!(tag_name: tag_name, category: :general) }
 
   let!(:post_record) do
     Post.create!(title: 'spec post', url: 'https://example.com/spec').tap do |p|
@@ -28,9 +27,9 @@ RSpec.describe 'Posts API', type: :request do
     let!(:user) { create_member_user! }
 
     let!(:tag_name) { TagName.create!(name: "spec_tag") }
-    let!(:tag) { Tag.create!(tag_name:, category: "general") }
+    let!(:tag) { Tag.create!(tag_name:, category: :general) }
     let!(:tag_name2) { TagName.create!(name: 'unko') }
-    let!(:tag2) { Tag.create!(tag_name: tag_name2, category: 'deerjikist') }
+    let!(:tag2) { Tag.create!(tag_name: tag_name2, category: :deerjikist) }
     let!(:alias_tag_name) { TagName.create!(name: 'manko', canonical: tag_name) }
 
     let!(:hit_post) do
@@ -116,201 +115,120 @@ RSpec.describe 'Posts API', type: :request do
       end
     end
 
-    context 'when url is provided' do
-      let!(:url_hit_post) do
-        Post.create!(uploaded_user: user, title: 'url hit',
-                     url: 'https://example.com/needle-url-xyz').tap do |p|
-          PostTag.create!(post: p, tag:)
+    context 'when tags contain not:' do
+      let!(:foo_tag_name) { TagName.create!(name: 'not_spec_foo') }
+      let!(:foo_tag) { Tag.create!(tag_name: foo_tag_name, category: :general) }
+
+      let!(:bar_tag_name) { TagName.create!(name: 'not_spec_bar') }
+      let!(:bar_tag) { Tag.create!(tag_name: bar_tag_name, category: :general) }
+
+      let!(:baz_tag_name) { TagName.create!(name: 'not_spec_baz') }
+      let!(:baz_tag) { Tag.create!(tag_name: baz_tag_name, category: :general) }
+
+      let!(:foo_alias_tag_name) do
+        TagName.create!(name: 'not_spec_foo_alias', canonical: foo_tag_name)
+      end
+
+      let!(:foo_only_post) do
+        Post.create!(uploaded_user: user, title: 'foo only',
+                     url: 'https://example.com/not-spec-foo').tap do |p|
+          PostTag.create!(post: p, tag: foo_tag)
         end
       end
 
-      let!(:url_miss_post) do
-        Post.create!(uploaded_user: user, title: 'url miss',
-                     url: 'https://example.com/other-url').tap do |p|
-          PostTag.create!(post: p, tag:)
+      let!(:bar_only_post) do
+        Post.create!(uploaded_user: user, title: 'bar only',
+                     url: 'https://example.com/not-spec-bar').tap do |p|
+          PostTag.create!(post: p, tag: bar_tag)
         end
       end
 
-      it 'filters posts by url substring' do
-        get '/posts', params: { url: 'needle-url-xyz' }
+      let!(:baz_only_post) do
+        Post.create!(uploaded_user: user, title: 'baz only',
+                     url: 'https://example.com/not-spec-baz').tap do |p|
+          PostTag.create!(post: p, tag: baz_tag)
+        end
+      end
+
+      let!(:foo_bar_post) do
+        Post.create!(uploaded_user: user, title: 'foo bar',
+                     url: 'https://example.com/not-spec-foo-bar').tap do |p|
+          PostTag.create!(post: p, tag: foo_tag)
+          PostTag.create!(post: p, tag: bar_tag)
+        end
+      end
+
+      let!(:foo_baz_post) do
+        Post.create!(uploaded_user: user, title: 'foo baz',
+                     url: 'https://example.com/not-spec-foo-baz').tap do |p|
+          PostTag.create!(post: p, tag: foo_tag)
+          PostTag.create!(post: p, tag: baz_tag)
+        end
+      end
+
+      let(:controlled_ids) do
+        [foo_only_post.id, bar_only_post.id, baz_only_post.id,
+         foo_bar_post.id, foo_baz_post.id]
+      end
+
+      it 'supports not search' do
+        get '/posts', params: { tags: 'not:not_spec_foo' }
 
         expect(response).to have_http_status(:ok)
-        ids = json.fetch('posts').map { |p| p['id'] }
 
-        expect(ids).to include(url_hit_post.id)
-        expect(ids).not_to include(url_miss_post.id)
-        expect(json.fetch('count')).to eq(1)
-      end
+        expect(json.fetch('posts').map { |p| p['id'] } & controlled_ids).to match_array(
+          [bar_only_post.id, baz_only_post.id]
+        )
       end
 
-    context 'when title is provided' do
-      let!(:title_hit_post) do
-        Post.create!(uploaded_user: user, title: 'needle-title-xyz',
-                     url: 'https://example.com/title-hit').tap do |p|
-          PostTag.create!(post: p, tag:)
-        end
-      end
-
-      let!(:title_miss_post) do
-        Post.create!(uploaded_user: user, title: 'other title',
-                     url: 'https://example.com/title-miss').tap do |p|
-          PostTag.create!(post: p, tag:)
-        end
-      end
-
-      it 'filters posts by title substring' do
-        get '/posts', params: { title: 'needle-title-xyz' }
+      it 'supports alias in not search' do
+        get '/posts', params: { tags: 'not:not_spec_foo_alias' }
 
         expect(response).to have_http_status(:ok)
-        ids = json.fetch('posts').map { |p| p['id'] }
 
-        expect(ids).to include(title_hit_post.id)
-        expect(ids).not_to include(title_miss_post.id)
-        expect(json.fetch('count')).to eq(1)
-      end
+        expect(json.fetch('posts').map { |p| p['id'] } & controlled_ids).to match_array(
+          [bar_only_post.id, baz_only_post.id]
+        )
       end
 
-    context 'when created_from/created_to are provided' do
-      let(:t_created_hit) { Time.zone.local(2010, 1, 5, 12, 0, 0) }
-      let(:t_created_miss) { Time.zone.local(2012, 1, 5, 12, 0, 0) }
-
-      let!(:created_hit_post) do
-        travel_to(t_created_hit) do
-          Post.create!(uploaded_user: user, title: 'created hit',
-                       url: 'https://example.com/created-hit').tap do |p|
-            PostTag.create!(post: p, tag:)
-          end
-        end
-      end
-
-      let!(:created_miss_post) do
-        travel_to(t_created_miss) do
-          Post.create!(uploaded_user: user, title: 'created miss',
-                       url: 'https://example.com/created-miss').tap do |p|
-            PostTag.create!(post: p, tag:)
-          end
-        end
-      end
-
-      it 'filters posts by created_at range' do
-        get '/posts', params: {
-          created_from: Time.zone.local(2010, 1, 1, 0, 0, 0).iso8601,
-          created_to: Time.zone.local(2010, 12, 31, 23, 59, 59).iso8601
-        }
+      it 'treats multiple not terms as AND when match is omitted' do
+        get '/posts', params: { tags: 'not:not_spec_foo not:not_spec_bar' }
 
         expect(response).to have_http_status(:ok)
-        ids = json.fetch('posts').map { |p| p['id'] }
 
-        expect(ids).to include(created_hit_post.id)
-        expect(ids).not_to include(created_miss_post.id)
-        expect(json.fetch('count')).to eq(1)
-      end
+        expect(json.fetch('posts').map { |p| p['id'] } & controlled_ids).to match_array(
+          [baz_only_post.id]
+        )
       end
 
-    context 'when updated_from/updated_to are provided' do
-      let(:t0) { Time.zone.local(2011, 2, 1, 12, 0, 0) }
-      let(:t1) { Time.zone.local(2011, 2, 10, 12, 0, 0) }
-
-      let!(:updated_hit_post) do
-        p = nil
-        travel_to(t0) do
-          p = Post.create!(uploaded_user: user, title: 'updated hit',
-                           url: 'https://example.com/updated-hit').tap do |pp|
-            PostTag.create!(post: pp, tag:)
-          end
-        end
-        travel_to(t1) do
-          p.update!(title: 'updated hit v2')
-        end
-        p
-      end
-
-      let!(:updated_miss_post) do
-        travel_to(Time.zone.local(2013, 1, 1, 12, 0, 0)) do
-          Post.create!(uploaded_user: user, title: 'updated miss',
-                       url: 'https://example.com/updated-miss').tap do |p|
-            PostTag.create!(post: p, tag:)
-          end
-        end
-      end
-
-      it 'filters posts by updated_at range' do
-        get '/posts', params: {
-          updated_from: Time.zone.local(2011, 2, 5, 0, 0, 0).iso8601,
-          updated_to: Time.zone.local(2011, 2, 20, 23, 59, 59).iso8601
-        }
+      it 'treats multiple not terms as OR when match=any' do
+        get '/posts', params: { tags: 'not:not_spec_foo not:not_spec_bar', match: 'any' }
 
         expect(response).to have_http_status(:ok)
-        ids = json.fetch('posts').map { |p| p['id'] }
 
-        expect(ids).to include(updated_hit_post.id)
-        expect(ids).not_to include(updated_miss_post.id)
-        expect(json.fetch('count')).to eq(1)
-      end
+        expect(json.fetch('posts').map { |p| p['id'] } & controlled_ids).to match_array(
+          [foo_only_post.id, bar_only_post.id, baz_only_post.id, foo_baz_post.id]
+        )
       end
 
-    context 'when original_created_from/original_created_to are provided' do
-      # 注意: controller の現状ロジックに合わせてる
-      # original_created_from は `original_created_before > ?`
-      # original_created_to   は `original_created_from <= ?`
-
-      let!(:oc_hit_post) do
-        Post.create!(uploaded_user: user, title: 'oc hit',
-                     url: 'https://example.com/oc-hit',
-                     original_created_from: Time.zone.local(2015, 1, 1, 0, 0, 0),
-                     original_created_before: Time.zone.local(2015, 1, 10, 0, 0, 0)).tap do |p|
-          PostTag.create!(post: p, tag:)
-        end
-      end
-
-      # original_created_from の条件は「original_created_before > param」なので、
-      # before が param 以下になるようにする（ただし before >= from は守る）
-      let!(:oc_miss_post_for_from) do
-        Post.create!(
-          uploaded_user: user,
-          title: 'oc miss for from',
-          url: 'https://example.com/oc-miss-from',
-          original_created_from: Time.zone.local(2014, 12, 1, 0, 0, 0),
-          original_created_before: Time.zone.local(2015, 1, 1, 0, 0, 0)
-        ).tap { |p| PostTag.create!(post: p, tag:) }
-      end
-
-      # original_created_to の条件は「original_created_from <= param」なので、
-      # from が param より後になるようにする（before >= from は守る）
-      let!(:oc_miss_post_for_to) do
-        Post.create!(
-          uploaded_user: user,
-          title: 'oc miss for to',
-          url: 'https://example.com/oc-miss-to',
-          original_created_from: Time.zone.local(2015, 2, 1, 0, 0, 0),
-          original_created_before: Time.zone.local(2015, 2, 10, 0, 0, 0)
-        ).tap { |p| PostTag.create!(post: p, tag:) }
-      end
-
-      it 'filters posts by original_created_from (current controller behavior)' do
-        get '/posts', params: {
-          original_created_from: Time.zone.local(2015, 1, 5, 0, 0, 0).iso8601
-        }
+      it 'supports mixed positive and negative search with AND' do
+        get '/posts', params: { tags: 'not_spec_foo not:not_spec_bar' }
 
         expect(response).to have_http_status(:ok)
-        ids = json.fetch('posts').map { |p| p['id'] }
 
-        expect(ids).to include(oc_hit_post.id)
-        expect(ids).not_to include(oc_miss_post_for_from.id)
-        expect(json.fetch('count')).to eq(2)
+        expect(json.fetch('posts').map { |p| p['id'] } & controlled_ids).to match_array(
+          [foo_only_post.id, foo_baz_post.id]
+        )
       end
 
-      it 'filters posts by original_created_to (current controller behavior)' do
-        get '/posts', params: {
-          original_created_to: Time.zone.local(2015, 1, 15, 0, 0, 0).iso8601
-        }
+      it 'supports mixed positive and negative search with OR when match=any' do
+        get '/posts', params: { tags: 'not_spec_foo not:not_spec_bar', match: 'any' }
 
         expect(response).to have_http_status(:ok)
-        ids = json.fetch('posts').map { |p| p['id'] }
 
-        expect(ids).to include(oc_hit_post.id)
-        expect(ids).not_to include(oc_miss_post_for_to.id)
-        expect(json.fetch('count')).to eq(2)
+        expect(json.fetch('posts').map { |p| p['id'] } & controlled_ids).to match_array(
+          [foo_only_post.id, baz_only_post.id, foo_bar_post.id, foo_baz_post.id]
+        )
       end
     end
   end
@@ -409,7 +327,7 @@ RSpec.describe 'Posts API', type: :request do
     context "when nico tag already exists in tags" do
       before do
         Tag.find_or_create_by!(tag_name: TagName.find_or_create_by!(name: 'nico:nico_tag'),
-                               category: 'nico')
+                               category: :nico)
       end
 
       it 'return 400' do
@@ -475,7 +393,7 @@ RSpec.describe 'Posts API', type: :request do
 
       # 追加で別タグも作って、更新時に入れ替わることを見る
       tn2 = TagName.create!(name: 'spec_tag_2')
-      Tag.create!(tag_name: tn2, category: 'general')
+      Tag.create!(tag_name: tn2, category: :general)
 
       put "/posts/#{post_record.id}", params: {
         title: 'updated title',
@@ -494,7 +412,7 @@ RSpec.describe 'Posts API', type: :request do
     context "when nico tag already exists in tags" do
       before do
         Tag.find_or_create_by!(tag_name: TagName.find_or_create_by!(name: 'nico:nico_tag'),
-                               category: 'nico')
+                               category: :nico)
       end
 
       it 'return 400' do
@@ -531,7 +449,7 @@ RSpec.describe 'Posts API', type: :request do
     it 'returns add/remove events (history) for a post' do
       # add
       tn2 = TagName.create!(name: 'spec_tag2')
-      tag2 = Tag.create!(tag_name: tn2, category: 'general')
+      tag2 = Tag.create!(tag_name: tn2, category: :general)
       pt = PostTag.create!(post: post_record, tag: tag2, created_user: member)
 
       # remove (discard)

frontend/src/App.tsx

@@ -16,7 +16,6 @@ import PostDetailPage from '@/pages/posts/PostDetailPage'
 import PostHistoryPage from '@/pages/posts/PostHistoryPage'
 import PostListPage from '@/pages/posts/PostListPage'
 import PostNewPage from '@/pages/posts/PostNewPage'
-import PostSearchPage from '@/pages/posts/PostSearchPage'
 import ServiceUnavailable from '@/pages/ServiceUnavailable'
 import SettingPage from '@/pages/users/SettingPage'
 import WikiDetailPage from '@/pages/wiki/WikiDetailPage'
@@ -43,7 +42,6 @@ const RouteTransitionWrapper = ({ user, setUser }: {
 	    <Route path="/" element={<Navigate to="/posts" replace/>}/>
 	    <Route path="/posts" element={<PostListPage/>}/>
 	    <Route path="/posts/new" element={<PostNewPage user={user}/>}/>
-	    <Route path="/posts/search" element={<PostSearchPage/>}/>
 	    <Route path="/posts/:id" element={<PostDetailRoute user={user}/>}/>
 	    <Route path="/posts/changes" element={<PostHistoryPage/>}/>
 	    <Route path="/tags/nico" element={<NicoTagListPage user={user}/>}/>

frontend/src/components/PostFormTagsArea.tsx

@@ -1,5 +1,3 @@
-// TODO: TagSearch と共通化する．
-
 import { useRef, useState } from 'react'
 
 import TagSearchBox from '@/components/TagSearchBox'
@@ -83,7 +81,9 @@ export default (({ tags, setTags }: Props) => {
 	      const pos = (ev.target as HTMLTextAreaElement).selectionStart
 	      await recompute (pos)
 	    }}
-	    onFocus={() => setFocused (true)}
+	    onFocus={() => {
+	      setFocused (true)
+	    }}
 	    onBlur={() => {
 	      setFocused (false)
 	      setSuggestionsVsbl (false)

frontend/src/components/TagDetailSidebar.tsx

@@ -19,7 +19,6 @@ import SidebarComponent from '@/components/layout/SidebarComponent'
 import { toast } from '@/components/ui/use-toast'
 import { CATEGORIES } from '@/consts'
 import { apiDelete, apiGet, apiPatch, apiPost } from '@/lib/api'
-import { dateString, originalCreatedAtString } from '@/lib/utils'
 
 import type { DragEndEvent } from '@dnd-kit/core'
 import type { FC, MutableRefObject, ReactNode } from 'react'
@@ -344,7 +343,7 @@ export default (({ post }: Props) => {
 		       : 'bot操作'}
 		    </li>
 		    */}
-		    <li>耕作日時: {dateString (post.createdAt)}</li>
+		    <li>耕作日時: {(new Date (post.createdAt)).toLocaleString ()}</li>
 		    <li>
 		      <>リンク: </>
 		      <a
@@ -356,14 +355,20 @@ export default (({ post }: Props) => {
 		      </a>
 		    </li>
 		    <li>
+		      {/* TODO: 表示形式きしょすぎるので何とかする */}
 		      <>オリジナルの投稿日時: </>
-		      {originalCreatedAtString (post.originalCreatedFrom,
-						post.originalCreatedBefore)}
+		      {!(post.originalCreatedFrom) && !(post.originalCreatedBefore)
+		       ? '不明'
+		       : (
+			  <>
+			    {post.originalCreatedFrom
+			     && `${ (new Date (post.originalCreatedFrom)).toLocaleString () } 以降 `}
+			    {post.originalCreatedBefore
+			     && `${ (new Date (post.originalCreatedBefore)).toLocaleString () } より前`}
+			  </>)}
 		    </li>
 		    <li>
-		      <PrefetchLink to={`/posts/changes?id=${ post.id }`}>
-			履歴
-		      </PrefetchLink>
+		      <PrefetchLink to={`/posts/changes?id=${ post.id }`}>履歴</PrefetchLink>
 		    </li>
 		  </ul>
 		</div>)}

frontend/src/components/TagSearch.tsx

@@ -1,5 +1,3 @@
-// TODO: タグ入力系すべてに同様の処理あるため共通化する．
-
 import { useEffect, useState } from 'react'
 import { useNavigate, useLocation } from 'react-router-dom'
 
@@ -56,8 +54,11 @@ export default (() => {
       if (activeIndex < 0)
 	break
       ev.preventDefault ()
+      {
 	const selected = suggestions[activeIndex]
-      selected && handleTagSelect (selected)
+	if (selected)
+	  handleTagSelect (selected)
+      }
       break
 
     case 'Escape':
@@ -67,14 +68,25 @@ export default (() => {
     }
     if (ev.key === 'Enter' && (!(suggestionsVsbl) || activeIndex < 0))
       {
-	navigate (`/posts?${ (new URLSearchParams ({ tags: search })).toString () }`)
+	const parts = search.split (' ')
+	const match = parts.map (t => t.toLowerCase ()).includes ('type:or') ? 'any' : 'all'
+	navigate (`/posts?${
+	    (new URLSearchParams ({
+		tags: parts.map (t => t.toLowerCase ())
+			   .filter (t => t !== 'type:or')
+			   .join (' '),
+		match }))
+	    .toString () }`)
 	setSuggestionsVsbl (false)
       }
   }
 
   const handleTagSelect = (tag: Tag) => {
     const parts = search.split (' ')
-    parts[parts.length - 1] = tag.name
+    parts[parts.length - 1] = (
+	(parts[parts.length - 1].slice(0, 4).toLowerCase () === 'not:')
+	? ('not:' + tag.name)
+	: tag.name)
     setSearch (parts.join (' ') + ' ')
     setSuggestions ([])
     setActiveIndex (-1)
@@ -82,7 +94,8 @@ export default (() => {
 
   useEffect (() => {
     const query = new URLSearchParams (location.search)
-    const tagsQuery = query.get ('tags') ?? ''
+    const anyFlg = query.get ('match') === 'any'
+    const tagsQuery = `${ query.get ('tags') ?? '' }${ anyFlg ? ' type:or' : '' }`
     setSearch (tagsQuery)
   }, [location.search])
 

frontend/src/components/TopNav.tsx

@@ -69,9 +69,8 @@ export default (({ user }: Props) => {
   const menu: Menu = [
       { name: '広場', to: '/posts', subMenu: [
 	  { name: '一覧', to: '/posts' },
-	  { name: '検索', to: '/posts/search' },
 	  { name: '投稿追加', to: '/posts/new' },
-	  { name: '履歴', to: '/posts/changes' },
+	  { name: '耕作履歴', to: '/posts/changes' },
 	  { name: 'ヘルプ', to: '/wiki/ヘルプ:広場' }] },
       { name: 'タグ', to: '/tags', subMenu: [
 	  { name: 'タグ一覧', to: '/tags', visible: false },

frontend/src/consts.ts

@@ -3,23 +3,13 @@ import type { Category } from 'types'
 export const LIGHT_COLOUR_SHADE = 800
 export const DARK_COLOUR_SHADE = 300
 
-export const CATEGORIES = [
-    'deerjikist',
+export const CATEGORIES = ['deerjikist',
 			   'meme',
 			   'character',
 			   'general',
 			   'material',
 			   'meta',
-    'nico',
-    ] as const
-
-export const FETCH_POSTS_ORDER_FIELDS = [
-    'title',
-    'url',
-    'original_created_at',
-    'created_at',
-    'updated_at',
-    ] as const
+			   'nico'] as const
 
 export const TAG_COLOUR = {
     deerjikist: 'rose',
@@ -28,13 +18,10 @@ export const TAG_COLOUR = {
     general:    'cyan',
     material:   'orange',
     meta:       'yellow',
-    nico:       'gray',
-    } as const satisfies Record<Category, string>
+    nico:       'gray' } as const satisfies Record<Category, string>
 
 export const USER_ROLES = ['admin', 'member', 'guest'] as const
 
-export const ViewFlagBehavior = {
-    OnShowedDetail: 1,
+export const ViewFlagBehavior = { OnShowedDetail: 1,
 				  OnClickedLink:  2,
-    NotAuto:        3,
-    } as const
+				  NotAuto:        3 } as const

frontend/src/lib/posts.ts

@@ -1,28 +1,25 @@
 import { apiDelete, apiGet, apiPost } from '@/lib/api'
 
-import type { FetchPostsParams, Post, PostTagChange } from '@/types'
+import type { Post, PostTagChange } from '@/types'
 
 
 export const fetchPosts = async (
-    { url, title, tags, match, createdFrom, createdTo, updatedFrom, updatedTo,
-      originalCreatedFrom, originalCreatedTo, page, limit, order }: FetchPostsParams
+    { tags, match, page, limit, cursor }: {
+	tags:     string
+	match:    'any' | 'all'
+	page?:    number
+	limit?:   number
+	cursor?:  string }
 ): Promise<{
     posts:      Post[]
-    count:  number }> =>
+    count:      number
+    nextCursor: string }> =>
 	await apiGet ('/posts', { params: {
-	    ...(url && { url }),
-	    ...(title && { title }),
-	    ...(tags && { tags }),
-	    ...(match && { match }),
-	    ...(createdFrom && { created_from: createdFrom }),
-	    ...(createdTo && { created_to: createdTo }),
-	    ...(updatedFrom && { updated_from: updatedFrom }),
-	    ...(updatedTo && { updated_to: updatedTo }),
-	    ...(originalCreatedFrom && { original_created_from: originalCreatedFrom }),
-	    ...(originalCreatedTo && { original_created_to: originalCreatedTo }),
+	    tags,
+	    match,
 	    ...(page && { page }),
 	    ...(limit && { limit }),
-	    ...(order && { order }) } })
+	    ...(cursor && { cursor }) } })
 
 
 export const fetchPost = async (id: string): Promise<Post> => await apiGet (`/posts/${ id }`)

frontend/src/lib/prefetchers.ts

@@ -8,8 +8,6 @@ import { fetchWikiPage,
 	 fetchWikiPageByTitle,
 	 fetchWikiPages } from '@/lib/wiki'
 
-import type { FetchPostsOrder } from '@/types'
-
 type Prefetcher = (qc: QueryClient, url: URL) => Promise<void>
 
 const mPost = match<{ id: string }> ('/posts/:id')
@@ -61,20 +59,7 @@ const prefetchWikiPageShow: Prefetcher = async (qc, url) => {
   if (version)
     return
 
-  const p = {
-      tags: effectiveTitle,
-      match: 'all',
-      page: 1,
-      limit: 8,
-      url: '',
-      title: '',
-      originalCreatedFrom: '',
-      originalCreatedTo: '',
-      createdFrom: '',
-      createdTo: '',
-      updatedFrom: '',
-      updatedTo: '',
-      order: 'original_created_at:desc' } as const
+  const p = { tags: effectiveTitle, match: 'all', page: 1, limit: 8 } as const
   await qc.prefetchQuery ({
       queryKey: postsKeys.index (p),
       queryFn:  () => fetchPosts (p) })
@@ -83,27 +68,13 @@ const prefetchWikiPageShow: Prefetcher = async (qc, url) => {
 
 const prefetchPostsIndex: Prefetcher = async (qc, url) => {
   const tags = url.searchParams.get ('tags') ?? ''
-  const qURL = url.searchParams.get ('url') ?? ''
-  const title = url.searchParams.get ('title') ?? ''
-  const originalCreatedFrom = url.searchParams.get ('original_created_from') ?? ''
-  const originalCreatedTo = url.searchParams.get ('original_created_to') ?? ''
-  const createdFrom = url.searchParams.get ('created_from') ?? ''
-  const createdTo = url.searchParams.get ('created_to') ?? ''
-  const updatedFrom = url.searchParams.get ('updated_from') ?? ''
-  const updatedTo = url.searchParams.get ('updated_to') ?? ''
-  const m: 'all' | 'any' = url.searchParams.get ('match') === 'any' ? 'any' : 'all'
+  const m = url.searchParams.get ('match') === 'any' ? 'any' : 'all'
   const page = Number (url.searchParams.get ('page') || 1)
   const limit = Number (url.searchParams.get ('limit') || 20)
-  const order = (url.searchParams.get ('order') ?? 'original_created_at:desc') as FetchPostsOrder
-
-  const keys = {
-      tags, match: m, page, limit, url: qURL, title,
-      originalCreatedFrom, originalCreatedTo, createdFrom, createdTo,
-      updatedFrom, updatedTo, order }
 
   await qc.prefetchQuery ({
-      queryKey: postsKeys.index (keys),
-      queryFn:  () => fetchPosts (keys) })
+      queryKey: postsKeys.index ({ tags, match: m, page, limit }),
+      queryFn:  () => fetchPosts ({ tags, match: m, page, limit }) })
 }
 
 
@@ -132,9 +103,8 @@ const prefetchPostChanges: Prefetcher = async (qc, url) => {
 
 
 export const routePrefetchers: { test: (u: URL) => boolean; run: Prefetcher }[] = [
-    { test: u => ['/', '/posts', '/posts/search'].includes (u.pathname),
-      run: prefetchPostsIndex },
-    { test: u => (!(['/posts/new', '/posts/changes', '/posts/search'].includes (u.pathname))
+    { test: u => u.pathname === '/' || u.pathname === '/posts', run: prefetchPostsIndex },
+    { test: u => (!(['/posts/new', '/posts/changes'].includes (u.pathname))
 		  && Boolean (mPost (u.pathname))),
       run: prefetchPostShow },
     { test: u => u.pathname === '/posts/changes', run: prefetchPostChanges },
@@ -149,6 +119,5 @@ export const prefetchForURL = async (qc: QueryClient, urlLike: string): Promise<
   const r = routePrefetchers.find (x => x.test (u))
   if (!(r))
     return
-
   await r.run (qc, u)
 }

frontend/src/lib/queryKeys.ts

@@ -1,8 +1,7 @@
-import type { FetchPostsParams } from '@/types'
-
 export const postsKeys = {
     root:     ['posts'] as const,
-    index:    (p: FetchPostsParams) => ['posts', 'index', p] as const,
+    index:    (p: { tags: string; match: 'any' | 'all'; page: number; limit: number }) =>
+		  ['posts', 'index', p] as const,
     show:     (id: string) => ['posts', id] as const,
     related:  (id: string) => ['related', id] as const,
     changes:  (p: { id?: string; page: number; limit: number }) =>

frontend/src/lib/utils.ts

@@ -4,23 +4,4 @@ import { twMerge } from 'tailwind-merge'
 import type { ClassValue } from 'clsx'
 
 
-export const toDate = (d: string | Date): Date => typeof d === 'string' ? new Date (d) : d
-
-
 export const cn = (...inputs: ClassValue[]) => twMerge (clsx (...inputs))
-
-
-export const dateString = (d: string | Date): string =>
-    toDate (d).toLocaleString ('ja-JP-u-ca-japanese')
-
-
-// TODO: 表示形式きしょすぎるので何とかする
-export const originalCreatedAtString = (
-    f:  string | Date | null,
-    b:  string | Date | null,
-): string =>
-    ([f ? `${ dateString (f) } 以降` : '',
-      b ? `${ dateString (b) } より前` : '']
-     .filter (Boolean)
-     .join (' '))
-    || '不明'

frontend/src/pages/posts/PostHistoryPage.tsx

@@ -1,6 +1,4 @@
 import { useQuery } from '@tanstack/react-query'
-import { motion } from 'framer-motion'
-import { useEffect } from 'react'
 import { Helmet } from 'react-helmet-async'
 import { useLocation } from 'react-router-dom'
 
@@ -12,7 +10,7 @@ import MainArea from '@/components/layout/MainArea'
 import { SITE_TITLE } from '@/config'
 import { fetchPostChanges } from '@/lib/posts'
 import { postsKeys } from '@/lib/queryKeys'
-import { cn, dateString } from '@/lib/utils'
+import { cn } from '@/lib/utils'
 
 import type { FC } from 'react'
 
@@ -33,10 +31,6 @@ export default (() => {
   const changes = data?.changes ?? []
   const totalPages = data ? Math.ceil (data.count / limit) : 0
 
-  useEffect (() => {
-    document.querySelector ('table')?.scrollIntoView ({ behavior: 'smooth' })
-  }, [location.search])
-
   return (
       <MainArea>
 	<Helmet>
@@ -78,17 +72,10 @@ export default (() => {
 			      <td className="align-top p-2 bg-white dark:bg-[#242424] border-r"
 				  rowSpan={rowsCnt}>
 				<PrefetchLink to={`/posts/${ change.post.id }`}>
-				  <motion.div
-				      layoutId={`page-${ change.post.id }`}
-				      transition={{ type: 'spring',
-						    stiffness: 500,
-						    damping: 40,
-						    mass: .5 }}>
 				  <img src={change.post.thumbnail || change.post.thumbnailBase || undefined}
 				       alt={change.post.title || change.post.url}
 				       title={change.post.title || change.post.url || undefined}
 				       className="w-40"/>
-				  </motion.div>
 				</PrefetchLink>
 			      </td>)}
 			  <td className="p-2">
@@ -96,14 +83,12 @@ export default (() => {
 			    {`を${ change.changeType === 'add' ? '記載' : '消除' }`}
 			  </td>
 			  <td className="p-2">
-			    {change.user
-			     ? (
+			    {change.user ? (
 				<PrefetchLink to={`/users/${ change.user.id }`}>
 				  {change.user.name}
-				</PrefetchLink>)
-			     : 'bot 操作'}
+				</PrefetchLink>) : 'bot 操作'}
 			    <br/>
-			    {dateString (change.timestamp)}
+			    {change.timestamp}
 			  </td>
 			</tr>)
 		  })}

frontend/src/pages/posts/PostListPage.tsx

@@ -35,16 +35,11 @@ export default (() => {
   const page = Number (query.get ('page') ?? 1)
   const limit = Number (query.get ('limit') ?? 20)
 
-  const keys = {
-      tags: tagsKey, match, page, limit,
-      url: '', title: '', originalCreatedFrom: '', originalCreatedTo: '',
-      createdFrom: '', createdTo: '', updatedFrom: '', updatedTo: '',
-      order: 'original_created_at:desc' } as const
   const { data, isLoading: loading } = useQuery ({
-      queryKey: postsKeys.index (keys),
-      queryFn:  () => fetchPosts (keys) })
+      queryKey: postsKeys.index ({ tags: tagsKey, match, page, limit }),
+      queryFn:  () => fetchPosts ({ tags: tagsKey, match, page, limit }) })
   const posts = data?.posts ?? []
-  const cursor = ''
+  const cursor = data?.nextCursor ?? ''
   const totalPages = data ? Math.ceil (data.count / limit) : 0
 
   useLayoutEffect (() => {

frontend/src/pages/posts/PostSearchPage.tsx

@@ -1,410 +0,0 @@
-import { useQuery } from '@tanstack/react-query'
-import { motion } from 'framer-motion'
-import { useEffect, useMemo, useState } from 'react'
-import { Helmet } from 'react-helmet-async'
-import { useLocation, useNavigate } from 'react-router-dom'
-
-import PrefetchLink from '@/components/PrefetchLink'
-import TagLink from '@/components/TagLink'
-import TagSearchBox from '@/components/TagSearchBox'
-import DateTimeField from '@/components/common/DateTimeField'
-import Label from '@/components/common/Label'
-import PageTitle from '@/components/common/PageTitle'
-import Pagination from '@/components/common/Pagination'
-import MainArea from '@/components/layout/MainArea'
-import { SITE_TITLE } from '@/config'
-import { apiGet } from '@/lib/api'
-import { fetchPosts } from '@/lib/posts'
-import { postsKeys } from '@/lib/queryKeys'
-import { dateString, originalCreatedAtString } from '@/lib/utils'
-
-import type { FC, ChangeEvent, FormEvent, KeyboardEvent } from 'react'
-
-import type { FetchPostsOrder,
-	      FetchPostsOrderField,
-	      FetchPostsParams,
-	      Tag } from '@/types'
-
-
-const setIf = (qs: URLSearchParams, k: string, v: string | null) => {
-  const t = v?.trim ()
-  if (t)
-    qs.set (k, t)
-}
-
-
-export default (() => {
-  const location = useLocation ()
-
-  const navigate = useNavigate ()
-
-  const query = useMemo (() => new URLSearchParams (location.search),
-			 [location.search])
-
-  const page = Number (query.get ('page') ?? 1)
-  const limit = Number (query.get ('limit') ?? 20)
-
-  const qURL = query.get ('url') ?? ''
-  const qTitle = query.get ('title') ?? ''
-  const qTags = query.get ('tags') ?? ''
-  const qMatch: 'all' | 'any' = query.get ('match') === 'any' ? 'any' : 'all'
-  const qOriginalCreatedFrom = query.get ('original_created_from') ?? ''
-  const qOriginalCreatedTo = query.get ('original_created_to') ?? ''
-  const qCreatedFrom = query.get ('created_from') ?? ''
-  const qCreatedTo = query.get ('created_to') ?? ''
-  const qUpdatedFrom = query.get ('updated_from') ?? ''
-  const qUpdatedTo = query.get ('updated_to') ?? ''
-  const order = (query.get ('order') || 'original_created_at:desc') as FetchPostsOrder
-
-  const [activeIndex, setActiveIndex] = useState (-1)
-  const [createdFrom, setCreatedFrom] = useState<string | null> (null)
-  const [createdTo, setCreatedTo] = useState<string | null> (null)
-  const [matchType, setMatchType] = useState<'all' | 'any'> ('all')
-  const [originalCreatedFrom, setOriginalCreatedFrom] = useState<string | null> (null)
-  const [originalCreatedTo, setOriginalCreatedTo] = useState<string | null> (null)
-  const [suggestions, setSuggestions] = useState<Tag[]> ([])
-  const [suggestionsVsbl, setSuggestionsVsbl] = useState (false)
-  const [tagsStr, setTagsStr] = useState ('')
-  const [title, setTitle] = useState ('')
-  const [updatedFrom, setUpdatedFrom] = useState<string | null> (null)
-  const [updatedTo, setUpdatedTo] = useState<string | null> (null)
-  const [url, setURL] = useState ('')
-
-  const keys: FetchPostsParams = {
-      tags: qTags, match: qMatch, page, limit,
-      url: qURL,
-      title: qTitle,
-      originalCreatedFrom: qOriginalCreatedFrom,
-      originalCreatedTo: qOriginalCreatedTo,
-      createdFrom: qCreatedFrom,
-      createdTo: qCreatedTo,
-      updatedFrom: qUpdatedFrom,
-      updatedTo: qUpdatedTo,
-      order }
-  const { data, isLoading: loading } = useQuery ({
-      queryKey: postsKeys.index (keys),
-      queryFn: () => fetchPosts (keys) })
-  const results = data?.posts ?? []
-  const totalPages = data ? Math.ceil (data.count / limit) : 0
-
-  useEffect (() => {
-    setURL (qURL ?? '')
-    setTitle (qTitle ?? '')
-    setTagsStr (qTags ?? '')
-    setMatchType (qMatch ?? 'all')
-    setOriginalCreatedFrom (qOriginalCreatedFrom)
-    setOriginalCreatedTo (qOriginalCreatedTo)
-    setCreatedFrom (qCreatedFrom)
-    setCreatedTo (qCreatedTo)
-    setUpdatedFrom (qUpdatedFrom)
-    setUpdatedTo (qUpdatedTo)
-
-    document.querySelector ('table')?.scrollIntoView ({ behavior: 'smooth' })
-  }, [location.search])
-
-  const SortHeader = ({ by, label }: { by: FetchPostsOrderField; label: string }) => {
-    const [fld, dir] = order.split (':')
-
-    const qs = new URLSearchParams (location.search)
-    const nextDir =
-	(by === fld)
-	? (dir === 'asc' ? 'desc' : 'asc')
-	: (['title', 'url'].includes (by) ? 'asc' : 'desc')
-    qs.set ('order', `${ by }:${ nextDir }`)
-    qs.set ('page', '1')
-
-    return (
-	<PrefetchLink
-	    className="text-inherit visited:text-inherit hover:text-inherit"
-	    to={`${ location.pathname }?${ qs.toString () }`}>
-	  <span className="font-bold">
-	    {label}
-	    {by === fld && (dir === 'asc' ? ' ▲' : ' ▼')}
-	  </span>
-	</PrefetchLink>)
-  }
-
-  // TODO: TagSearch からのコピペのため，共通化を考へる．
-  const whenChanged = async (ev: ChangeEvent<HTMLInputElement>) => {
-    setTagsStr (ev.target.value)
-
-    const q = ev.target.value.trim ().split (' ').at (-1)
-    if (!(q))
-      {
-	setSuggestions ([])
-	return
-      }
-
-    const data = await apiGet<Tag[]> ('/tags/autocomplete', { params: { q } })
-    setSuggestions (data.filter (t => t.postCount > 0))
-    if (suggestions.length > 0)
-      setSuggestionsVsbl (true)
-  }
-
-  // TODO: TagSearch からのコピペのため，共通化を考へる．
-  const handleKeyDown = (ev: KeyboardEvent<HTMLInputElement>) => {
-    switch (ev.key)
-    {
-    case 'ArrowDown':
-      ev.preventDefault ()
-      setActiveIndex (i => Math.min (i + 1, suggestions.length - 1))
-      setSuggestionsVsbl (true)
-      break
-
-    case 'ArrowUp':
-      ev.preventDefault ()
-      setActiveIndex (i => Math.max (i - 1, -1))
-      setSuggestionsVsbl (true)
-      break
-
-    case 'Enter':
-      if (activeIndex < 0)
-	break
-      ev.preventDefault ()
-      const selected = suggestions[activeIndex]
-      selected && handleTagSelect (selected)
-      break
-
-    case 'Escape':
-      ev.preventDefault ()
-      setSuggestionsVsbl (false)
-      break
-    }
-    if (ev.key === 'Enter' && (!(suggestionsVsbl) || activeIndex < 0))
-      {
-	setSuggestionsVsbl (false)
-      }
-  }
-
-  const search = async () => {
-    const qs = new URLSearchParams ()
-    setIf (qs, 'tags', tagsStr)
-    setIf (qs, 'url', url)
-    setIf (qs, 'title', title)
-    setIf (qs, 'original_created_from', originalCreatedFrom)
-    setIf (qs, 'original_created_to', originalCreatedTo)
-    setIf (qs, 'created_from', createdFrom)
-    setIf (qs, 'created_to', createdTo)
-    setIf (qs, 'updated_from', updatedFrom)
-    setIf (qs, 'updated_to', updatedTo)
-    qs.set ('match', matchType)
-    qs.set ('page', String ('1'))
-    qs.set ('order', order)
-    navigate (`${ location.pathname }?${ qs.toString () }`)
-  }
-
-  // TODO: TagSearch からのコピペのため，共通化を考へる．
-  const handleTagSelect = (tag: Tag) => {
-    const parts = tagsStr.split (' ')
-    parts[parts.length - 1] = tag.name
-    setTagsStr (parts.join (' ') + ' ')
-    setSuggestions ([])
-    setActiveIndex (-1)
-  }
-
-  const handleSearch = (e: FormEvent) => {
-    e.preventDefault ()
-    search ()
-  }
-
-  return (
-      <MainArea>
-	<Helmet>
-	  <title>広場検索 | {SITE_TITLE}</title>
-	</Helmet>
-
-	<div className="max-w-xl">
-	  <PageTitle>広場検索</PageTitle>
-
-	  <form onSubmit={handleSearch} className="space-y-2">
-	    {/* タイトル */}
-	    <div>
-	      <Label>タイトル</Label>
-	      <input
-		  type="text"
-		  value={title}
-		  onChange={e => setTitle (e.target.value)}
-		  className="w-full border p-2 rounded"/>
-	    </div>
-
-	    {/* URL */}
-	    <div>
-	      <Label>URL</Label>
-	      <input
-		  type="text"
-		  value={url}
-		  onChange={e => setURL (e.target.value)}
-		  className="w-full border p-2 rounded"/>
-	    </div>
-
-	    {/* タグ */}
-	    <div className="relative">
-	      <Label>タグ</Label>
-	      <input
-		  type="text"
-		  value={tagsStr}
-		  onChange={whenChanged}
-		  onFocus={() => setSuggestionsVsbl (true)}
-		  onBlur={() => setSuggestionsVsbl (false)}
-		  onKeyDown={handleKeyDown}
-		  className="w-full border p-2 rounded"/>
-	      <TagSearchBox
-		  suggestions={
-		      suggestionsVsbl && suggestions.length > 0 ? suggestions : [] as Tag[]}
-		  activeIndex={activeIndex}
-		  onSelect={handleTagSelect}/>
-	      <fieldset className="w-full my-2">
-		<label>検索区分：</label>
-		<label className="mx-2">
-		  <input
-		      type="radio"
-		      name="match-type"
-		      checked={matchType === 'all'}
-		      onChange={() => setMatchType ('all')}/>
-		  AND
-		</label>
-		<label className="mx-2">
-		  <input
-		      type="radio"
-		      name="match-type"
-		      checked={matchType === 'any'}
-		      onChange={() => setMatchType ('any')}/>
-		  OR
-		</label>
-	      </fieldset>
-	    </div>
-
-	    {/* オリジナルの投稿日時 */}
-	    <div>
-	      <Label>オリジナルの投稿日時</Label>
-	      <DateTimeField
-		  value={originalCreatedFrom ?? undefined}
-		  onChange={setOriginalCreatedFrom}/>
-	      <span className="mx-1">〜</span>
-	      <DateTimeField
-		  value={originalCreatedTo ?? undefined}
-		  onChange={setOriginalCreatedTo}/>
-	    </div>
-
-	    {/* 投稿日時 */}
-	    <div>
-	      <Label>投稿日時</Label>
-	      <DateTimeField
-		  value={createdFrom ?? undefined}
-		  onChange={setCreatedFrom}/>
-	      <span className="mx-1">〜</span>
-	      <DateTimeField
-		  value={createdTo ?? undefined}
-		  onChange={setCreatedTo}/>
-	    </div>
-
-	    {/* 更新日時 */}
-	    <div>
-	      <Label>更新日時</Label>
-	      <DateTimeField
-		  value={updatedFrom ?? undefined}
-		  onChange={setUpdatedFrom}/>
-	      <span className="mx-1">〜</span>
-	      <DateTimeField
-		  value={updatedTo ?? undefined}
-		  onChange={setUpdatedTo}/>
-	    </div>
-
-	    {/* 検索 */}
-	    <div className="py-3">
-	      <button
-		  type="submit"
-		  className="bg-blue-500 text-white px-4 py-2 rounded">
-		検索
-	      </button>
-	    </div>
-	  </form>
-	</div>
-
-	{loading ? 'Loading...' : (results.length > 0 ? (
-	    <div className="mt-4">
-	      <div className="overflow-x-auto">
-		<table className="w-full min-w-[1200px] table-fixed border-collapse">
-		  <colgroup>
-		    <col className="w-14"/>
-		    <col className="w-72"/>
-		    <col className="w-80"/>
-		    <col className="w-[24rem]"/>
-		    <col className="w-60"/>
-		    <col className="w-44"/>
-		    <col className="w-44"/>
-		  </colgroup>
-
-		  <thead className="border-b-2 border-black dark:border-white">
-		    <tr>
-		      <th className="p-2 text-left whitespace-nowrap">投稿</th>
-		      <th className="p-2 text-left whitespace-nowrap">
-			<SortHeader by="title" label="タイトル"/>
-		      </th>
-		      <th className="p-2 text-left whitespace-nowrap">
-			<SortHeader by="url" label="URL"/>
-		      </th>
-		      <th className="p-2 text-left whitespace-nowrap">タグ</th>
-		      <th className="p-2 text-left whitespace-nowrap">
-			<SortHeader by="original_created_at" label="オリジナルの投稿日時"/>
-		      </th>
-		      <th className="p-2 text-left whitespace-nowrap">
-			<SortHeader by="created_at" label="投稿日時"/>
-		      </th>
-		      <th className="p-2 text-left whitespace-nowrap">
-			<SortHeader by="updated_at" label="更新日時"/>
-		      </th>
-		    </tr>
-		  </thead>
-		  <tbody>
-		    {results.map (row => (
-			<tr key={row.id} className={'even:bg-gray-100 dark:even:bg-gray-700'}>
-			  <td className="p-2">
-			    <PrefetchLink to={`/posts/${ row.id }`} title={row.title}>
-			      <motion.div
-				  layoutId={`page-${ row.id }`}
-				  transition={{ type: 'spring',
-						stiffness: 500,
-						damping: 40,
-						mass: .5 }}>
-				<img src={row.thumbnail || row.thumbnailBase || undefined}
-				     alt={row.title || row.url}
-				     title={row.title || row.url || undefined}
-				     className="w-8"/>
-			      </motion.div>
-			    </PrefetchLink>
-			  </td>
-			  <td className="p-2 truncate">
-			    <PrefetchLink to={`/posts/${ row.id }`} title={row.title}>
-			      {row.title}
-			    </PrefetchLink>
-			  </td>
-			  <td className="p-2 truncate">
-			    <a href={row.url}
-			       title={row.url}
-			       target="_blank"
-			       rel="noopener noreferrer nofollow">
-			      {row.url}
-			    </a>
-			  </td>
-			  <td className="p-2">
-			    {row.tags.map (t => (
-				<span key={t.id} className="mr-2">
-				  <TagLink tag={t} withWiki={false} withCount={false}/>
-				</span>))}
-			  </td>
-			  <td className="p-2">
-			    {originalCreatedAtString (row.originalCreatedFrom,
-						      row.originalCreatedBefore)}
-			  </td>
-			  <td className="p-2">{dateString (row.createdAt)}</td>
-			  <td className="p-2">{dateString (row.updatedAt)}</td>
-			</tr>))}
-		  </tbody>
-		</table>
-	      </div>
-
-	      <Pagination page={page} totalPages={totalPages}/>
-	    </div>) : '結果ないよ（笑）')}
-      </MainArea>)
-}) satisfies FC

frontend/src/pages/wiki/WikiDetailPage.tsx

@@ -44,15 +44,10 @@ export default () => {
       queryKey: tagsKeys.show (effectiveTitle),
       queryFn:  () => fetchTagByName (effectiveTitle) })
 
-  const keys = {
-      tags: effectiveTitle, match: 'all', page: 1, limit: 8, url: '', title: '',
-      originalCreatedFrom: '', originalCreatedTo: '',
-      createdFrom: '', createdTo: '', updatedFrom: '', updatedTo: '',
-      order: 'original_created_at:desc' } as const
   const { data } = useQuery ({
       enabled:  Boolean (effectiveTitle) && !(version),
-      queryKey: postsKeys.index (keys),
-      queryFn:  () => fetchPosts (keys) })
+      queryKey: postsKeys.index ({ tags: effectiveTitle, match: 'all', page: 1, limit: 8 }),
+      queryFn:  () => fetchPosts ({ tags: effectiveTitle, match: 'all', page: 1, limit: 8 }) })
   const posts = data?.posts || []
 
   useEffect (() => {

frontend/src/pages/wiki/WikiHistoryPage.tsx

@@ -7,7 +7,6 @@ import PageTitle from '@/components/common/PageTitle'
 import MainArea from '@/components/layout/MainArea'
 import { SITE_TITLE } from '@/config'
 import { apiGet } from '@/lib/api'
-import { dateString } from '@/lib/utils'
 
 import type { WikiPageChange } from '@/types'
 
@@ -66,7 +65,7 @@ export default () => {
 		      {change.user.name}
 		    </PrefetchLink>
 		    <br/>
-		    {dateString (change.timestamp)}
+		    {change.timestamp}
 		  </td>
 		</tr>))}
 	  </tbody>

frontend/src/pages/wiki/WikiSearchPage.tsx

@@ -6,7 +6,6 @@ import PageTitle from '@/components/common/PageTitle'
 import MainArea from '@/components/layout/MainArea'
 import { SITE_TITLE } from '@/config'
 import { apiGet } from '@/lib/api'
-import { dateString } from '@/lib/utils'
 
 import type { FormEvent } from 'react'
 
@@ -85,7 +84,7 @@ export default () => {
 		      </PrefetchLink>
 		    </td>
 		    <td className="p-2">
-		      {dateString (page.updatedAt)}
+		      {page.updatedAt}
 		    </td>
 		  </tr>))}
 	    </tbody>

frontend/src/types.ts

@@ -1,31 +1,9 @@
-import { CATEGORIES,
-	 FETCH_POSTS_ORDER_FIELDS,
-	 USER_ROLES,
-	 ViewFlagBehavior } from '@/consts'
+import { CATEGORIES, USER_ROLES, ViewFlagBehavior } from '@/consts'
 
 import type { ReactNode } from 'react'
 
 export type Category = typeof CATEGORIES[number]
 
-export type FetchPostsOrder = `${ FetchPostsOrderField }:${ 'asc' | 'desc' }`
-
-export type FetchPostsOrderField = typeof FETCH_POSTS_ORDER_FIELDS[number]
-
-export type FetchPostsParams = {
-    url:                  string
-    title:                string
-    tags:                 string
-    match:                'all' | 'any'
-    originalCreatedFrom:  string
-    originalCreatedTo:    string
-    createdFrom:          string
-    createdTo:            string
-    updatedFrom:          string
-    updatedTo:            string
-    page:                 number
-    limit:                number
-    order:                FetchPostsOrder }
-
 export type Menu = MenuItem[]
 
 export type MenuItem = {
@@ -47,10 +25,9 @@ export type Post = {
     tags:                   Tag[]
     viewed:                 boolean
     related:                Post[]
-    originalCreatedFrom:    string | null
-    originalCreatedBefore:  string | null
     createdAt:              string
-    updatedAt:              string }
+    originalCreatedFrom:    string | null
+    originalCreatedBefore:  string | null }
 
 export type PostTagChange = {
     post:       Post