#61

backend/app/controllers/posts_controller.rb

@@ -100,23 +100,16 @@ class PostsController < ApplicationController
                          .first
     return head :not_found unless post
 
-    viewed = current_user&.viewed?(post) || false
-
-    render json: PostRepr.base(post).merge(viewed:)
+    render json: PostRepr.base(post, current_user)
   end
 
   def show
     post = Post.includes(tags: { tag_name: :wiki_page }).find_by(id: params[:id])
     return head :not_found unless post
 
-    viewed = current_user&.viewed?(post) || false
-
-    json = post.as_json
-    json['tags'] = build_tag_tree_for(post.tags)
-    json['related'] = post.related(limit: 20)
-    json['viewed'] = viewed
-
-    render json:
+    render json: PostRepr.base(post, current_user)
+                         .merge(tags: build_tag_tree_for(post.tags),
+                                related: post.related(limit: 20))
   end
 
   def create

backend/app/representations/post_repr.rb

@@ -2,15 +2,19 @@
 
 
 module PostRepr
-  BASE = { include: { tags: TagRepr::BASE } }.freeze
+  BASE = { include: { tags: TagRepr::BASE, uploaded_user: UserRepr::BASE } }.freeze
 
   module_function
 
-  def base post
-    post.as_json(BASE)
+  def base post, current_user = nil
+    json = post.as_json(BASE)
+    return json unless current_user
+
+    viewed = current_user.viewed?(post)
+    json.merge(viewed:)
   end
 
-  def many posts
-    posts.map { |p| base(p) }
+  def many posts, current_user = nil
+    posts.map { |p| base(p, current_user) }
   end
 end

backend/app/representations/user_repr.rb

@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+
+module UserRepr
+  BASE = { only: [:id, :name] }.freeze
+
+  module_function
+
+  def base user
+    user.as_json(BASE)
+  end
+
+  def many users
+    users.map { |u| base(u) }
+  end
+end

frontend/src/components/DraggableDroppableTagRow.tsx

@@ -1,5 +1,6 @@
 import { useDraggable, useDroppable } from '@dnd-kit/core'
 import { CSS } from '@dnd-kit/utilities'
+import { motion } from 'framer-motion'
 import { useRef } from 'react'
 
 import TagLink from '@/components/TagLink'
@@ -14,10 +15,11 @@ type Props = {
     nestLevel:        number
     pathKey:          string
     parentTagId?:     number
-    suppressClickRef: MutableRefObject<boolean> }
+    suppressClickRef: MutableRefObject<boolean>
+    sp?:              boolean }
 
 
-export default (({ tag, nestLevel, pathKey, parentTagId, suppressClickRef }: Props) => {
+export default (({ tag, nestLevel, pathKey, parentTagId, suppressClickRef, sp }: Props) => {
   const dndId = `tag-node:${ pathKey }`
 
   const downPosRef = useRef<{ x: number; y: number } | null> (null)
@@ -88,6 +90,8 @@ export default (({ tag, nestLevel, pathKey, parentTagId, suppressClickRef }: Pro
 	  className={cn ('rounded select-none', over && 'ring-2 ring-offset-2')}
 	  {...attributes}
 	  {...listeners}>
-	<TagLink tag={tag} nestLevel={nestLevel}/>
+	<motion.div layoutId={`tag-${ sp ? 'sp-' : '' }${ tag.id }`}>
+	  <TagLink tag={tag} nestLevel={nestLevel}/>
+	</motion.div>
       </div>)
 }) satisfies FC<Props>

frontend/src/components/TagDetailSidebar.tsx

@@ -6,8 +6,8 @@ import { DndContext,
 	 useSensor,
 	 useSensors } from '@dnd-kit/core'
 import { restrictToWindowEdges } from '@dnd-kit/modifiers'
-import { AnimatePresence, motion } from 'framer-motion'
-import { useEffect, useRef, useState } from 'react'
+import { motion } from 'framer-motion'
+import { useEffect, useMemo, useRef, useState } from 'react'
 
 import DraggableDroppableTagRow from '@/components/DraggableDroppableTagRow'
 import PrefetchLink from '@/components/PrefetchLink'
@@ -35,28 +35,27 @@ const renderTagTree = (
     path:             string,
     suppressClickRef: MutableRefObject<boolean>,
     parentTagId?:     number,
+    sp?:              boolean,
 ): ReactNode[] => {
   const key = `${ path }-${ tag.id }`
 
   const self = (
-      <motion.li
-	  key={key}
-	  layout
-	  transition={{ duration: .2, ease: 'easeOut' }}
-	  className="mb-1">
+      <li key={key} className="mb-1">
 	<DraggableDroppableTagRow
 	    tag={tag}
 	    nestLevel={nestLevel}
 	    pathKey={key}
 	    parentTagId={parentTagId}
-	    suppressClickRef={suppressClickRef}/>
-      </motion.li>)
+	    suppressClickRef={suppressClickRef}
+	    sp={sp}/>
+      </li>)
 
   return [
       self,
       ...((tag.children
 	   ?.sort ((a, b) => a.name < b.name ? -1 : 1)
-	   .flatMap (child => renderTagTree (child, nestLevel + 1, key, suppressClickRef, tag.id)))
+	   .flatMap (child =>
+	      renderTagTree (child, nestLevel + 1, key, suppressClickRef, tag.id, sp)))
 	  ?? [])]
 }
 
@@ -147,14 +146,32 @@ const DropSlot = ({ cat }: { cat: Category }) => {
 }
 
 
-type Props = { post: Post | null }
+type Props = { post: Post; sp?: boolean }
+
 
+export default (({ post, sp }: Props) => {
+  sp = Boolean (sp)
+
+  const baseTags = useMemo<TagByCategory> (() => {
+    const tagsTmp = { } as TagByCategory
+
+    for (const tag of post.tags)
+      {
+	if (!(tag.category in tagsTmp))
+	  tagsTmp[tag.category] = []
+	tagsTmp[tag.category].push (tag)
+      }
+
+    for (const cat of Object.keys (tagsTmp) as (keyof typeof tagsTmp)[])
+      tagsTmp[cat].sort ((tagA: Tag, tagB: Tag) => tagA.name < tagB.name ? -1 : 1)
+
+    return tagsTmp
+  }, [post])
 
-export default (({ post }: Props) => {
   const [activeTagId, setActiveTagId] = useState<number | null> (null)
   const [dragging, setDragging] = useState (false)
   const [saving, setSaving] = useState (false)
-  const [tags, setTags] = useState ({ } as TagByCategory)
+  const [tags, setTags] = useState (baseTags)
 
   const suppressClickRef = useRef (false)
 
@@ -163,9 +180,6 @@ export default (({ post }: Props) => {
       useSensor (TouchSensor, { activationConstraint: { delay: 250, tolerance: 8 } }))
 
   const reloadTags = async (): Promise<void> => {
-    if (!(post))
-      return
-
     setTags (buildTagByCategory (await apiGet<Post> (`/posts/${ post.id }`)))
   }
 
@@ -256,23 +270,8 @@ export default (({ post }: Props) => {
   }
 
   useEffect (() => {
-    if (!(post))
-      return
-
-    const tagsTmp = { } as TagByCategory
-
-    for (const tag of post.tags)
-      {
-	if (!(tag.category in tagsTmp))
-	  tagsTmp[tag.category] = []
-	tagsTmp[tag.category].push (tag)
-      }
-
-    for (const cat of Object.keys (tagsTmp) as (keyof typeof tagsTmp)[])
-      tagsTmp[cat].sort ((tagA: Tag, tagB: Tag) => tagA.name < tagB.name ? -1 : 1)
-
-    setTags (tagsTmp)
-  }, [post])
+    setTags (baseTags)
+  }, [baseTags])
 
   return (
       <SidebarComponent>
@@ -305,60 +304,57 @@ export default (({ post }: Props) => {
 	      document.body.style.userSelect = ''
 	    }}
 	    modifiers={[restrictToWindowEdges]}>
-	  <motion.div key={post?.id ?? 0} layout>
-	    {CATEGORIES.map ((cat: Category) => ((tags[cat] ?? []).length > 0 || dragging) && (
-		<motion.div layout className="my-3" key={cat}>
-		  <SubsectionTitle>{CATEGORY_NAMES[cat]}</SubsectionTitle>
-
-		  <motion.ul layout>
-		    <AnimatePresence initial={false}>
-		      {(tags[cat] ?? []).flatMap (tag => (
-			  renderTagTree (tag, 0, `cat-${ cat }`, suppressClickRef, undefined)))}
-		      <DropSlot cat={cat}/>
-		    </AnimatePresence>
-		  </motion.ul>
-		</motion.div>))}
-	    {post && (
-		<div>
-		  <SectionTitle>情報</SectionTitle>
-		  <ul>
-		    <li>Id.: {post.id}</li>
-		    {/* TODO: uploadedUser の取得を対応したらコメント外す */}
-		    {/*
-		    <li>
-		      <>耕作者: </>
-		      {post.uploadedUser
-		       ? (
-			  <PrefetchLink to={`/users/${ post.uploadedUser.id }`}>
-			    {post.uploadedUser.name || '名もなきニジラー'}
-			  </PrefetchLink>)
-		       : 'bot操作'}
-		    </li>
-		    */}
-		    <li>耕作日時: {dateString (post.createdAt)}</li>
-		    <li>
-		      <>リンク: </>
-		      <a
-			  className="break-all"
-			  href={post.url}
-			  target="_blank"
-			  rel="noopener noreferrer nofollow">
-			{post.url}
-		      </a>
-		    </li>
-		    <li>
-		      <>オリジナルの投稿日時: </>
-		      {originalCreatedAtString (post.originalCreatedFrom,
-						post.originalCreatedBefore)}
-		    </li>
-		    <li>
-		      <PrefetchLink to={`/posts/changes?id=${ post.id }`}>
-			履歴
-		      </PrefetchLink>
-		    </li>
-		  </ul>
-		</div>)}
-	  </motion.div>
+	  {CATEGORIES.map ((cat: Category) => ((tags[cat] ?? []).length > 0 || dragging) && (
+	      <div className="my-3" key={cat}>
+		<SubsectionTitle>
+		  <motion.div layoutId={`tag-${ sp ? 'sp-' : '' }${ cat }`}>
+		    {CATEGORY_NAMES[cat]}
+		  </motion.div>
+		</SubsectionTitle>
+
+		<ul>
+		  {(tags[cat] ?? []).flatMap (tag => (
+		      renderTagTree (tag, 0, `cat-${ cat }`, suppressClickRef, undefined, sp)))}
+		  <DropSlot cat={cat}/>
+		</ul>
+	      </div>))}
+	  {post && (
+	      <motion.div layoutId={`post-info-${ sp }`}>
+		<SectionTitle>情報</SectionTitle>
+		<ul>
+		  <li>Id.: {post.id}</li>
+		  <li>
+		    <>耕作者: </>
+		    {post.uploadedUser
+		     ? (
+			<PrefetchLink to={`/users/${ post.uploadedUser.id }`}>
+			  {post.uploadedUser.name || '名もなきニジラー'}
+			</PrefetchLink>)
+		     : 'bot操作'}
+		  </li>
+		  <li>耕作日時: {dateString (post.createdAt)}</li>
+		  <li>
+		    <>リンク: </>
+		    <a
+			className="break-all"
+			href={post.url}
+			target="_blank"
+			rel="noopener noreferrer nofollow">
+		      {post.url}
+		    </a>
+		  </li>
+		  <li>
+		    <>オリジナルの投稿日時: </>
+		    {originalCreatedAtString (post.originalCreatedFrom,
+					      post.originalCreatedBefore)}
+		  </li>
+		  <li>
+		    <PrefetchLink to={`/posts/changes?id=${ post.id }`}>
+		      履歴
+		    </PrefetchLink>
+		  </li>
+		</ul>
+	      </motion.div>)}
 
 	  <DragOverlay adjustScale={false}>
 	    <div className="pointer-events-none">

frontend/src/components/TagSidebar.tsx

@@ -65,30 +65,31 @@ export default (({ posts, onClick }: Props) => {
 	  {CATEGORIES.flatMap (cat => cat in tags ? (
 	      tags[cat].map (tag => (
 		  <li key={tag.id} className="mb-1">
-		    <TagLink tag={tag} prefetch onClick={onClick}/>
+		    <motion.div layoutId={`tag-${ tag.id }`}>
+		      <TagLink tag={tag} prefetch onClick={onClick}/>
+		    </motion.div>
 		  </li>))) : [])}
 	</ul>
 	<SectionTitle>関聯</SectionTitle>
-	{posts.length > 0 && (
-	    <a href="#"
-	       onClick={ev => {
-		 ev.preventDefault ()
-		 void ((async () => {
-		   try
-		   {
-		     const data = await apiGet<Post> ('/posts/random',
-			 { params: { tags: tagsQuery.split (' ').filter (e => e !== '').join (' '),
-				     match: (anyFlg ? 'any' : 'all') } })
-		     navigate (`/posts/${ data.id }`)
-		   }
-		   catch
-		   {
-		     ;
-		   }
-		 }) ())
-	       }}>
-	      ランダム
-	    </a>)}
+	<a href="#"
+	   onClick={ev => {
+	     ev.preventDefault ()
+	     void ((async () => {
+	       try
+	       {
+		 const data = await apiGet<Post> ('/posts/random',
+		     { params: { tags: tagsQuery.split (' ').filter (e => e !== '').join (' '),
+				 match: (anyFlg ? 'any' : 'all') } })
+		 navigate (`/posts/${ data.id }`)
+	       }
+	       catch
+	       {
+		 ;
+	       }
+	     }) ())
+	   }}>
+	  ランダム
+	</a>
       </>)
 
   return (
@@ -96,7 +97,7 @@ export default (({ posts, onClick }: Props) => {
 	<TagSearch/>
 
 	<div className="hidden md:block mt-4">
-	  {TagBlock}
+	  {posts.length > 0 && TagBlock}
 	</div>
 
 	<AnimatePresence initial={false}>
@@ -112,7 +113,7 @@ export default (({ posts, onClick }: Props) => {
 		  animate="visible"
 		  exit="hidden"
 		  transition={{ duration: .2, ease: 'easeOut' }}>
-		{TagBlock}
+		{posts.length > 0 && TagBlock}
 	      </motion.div>)}
 	</AnimatePresence>
 

frontend/src/components/common/Pagination.tsx

@@ -48,7 +48,7 @@ const getPages = (
 }
 
 
-export default (({ page, totalPages, siblingCount = 2 }) => {
+export default (({ page, totalPages, siblingCount = 3 }) => {
   const location = useLocation ()
 
   const buildTo = (p: number) => {
@@ -64,30 +64,64 @@ export default (({ page, totalPages, siblingCount = 2 }) => {
 	<div className="flex items-center gap-2">
 	  {(page > 1)
 	   ? (
-	      <PrefetchLink
-		  className="p-2"
-		  to={buildTo (page - 1)}
-		  aria-label="前のページ">
-		&lt;
-	      </PrefetchLink>)
-	   : <span className="p-2" aria-hidden>&lt;</span>}
+	      <>
+		<PrefetchLink
+		    className="md:hidden p-2"
+		    to={buildTo (1)}
+		    aria-label="最初のページ">
+		  |&lt;
+		</PrefetchLink>
+		<PrefetchLink
+		    className="p-2"
+		    to={buildTo (page - 1)}
+		    aria-label="前のページ">
+		  &lt;
+		</PrefetchLink>
+	      </>)
+	   : (
+	      <>
+		<span className="md:hidden p-2" aria-hidden>
+		  |&lt;
+		</span>
+		<span className="p-2" aria-hidden>
+		  &lt;
+		</span>
+	      </>)}
 
 	  {pages.map ((p, idx) => (
 	      (p === '…')
-	      ? <span key={`dots-${ idx }`} className="p-2">…</span>
+	      ? <span key={`dots-${ idx }`} className="hidden md:block p-2">…</span>
 	      : ((p === page)
 		 ? <span key={p} className="font-bold p-2" aria-current="page">{p}</span>
-		 : <PrefetchLink key={p} className="p-2" to={buildTo (p)}>{p}</PrefetchLink>)))}
+		 : (
+		    <PrefetchLink
+			key={p}
+			className="hidden md:block p-2"
+			to={buildTo (p)}>
+		      {p}
+		    </PrefetchLink>))))}
 
 	  {(page < totalPages)
 	   ? (
-	      <PrefetchLink
-		  className="p-2"
-		  to={buildTo (page + 1)}
-		  aria-label="次のページ">
-		&gt;
-	      </PrefetchLink>)
-	   : <span className="p-2" aria-hidden>&gt;</span>}
+	      <>
+		<PrefetchLink
+		    className="p-2"
+		    to={buildTo (page + 1)}
+		    aria-label="次のページ">
+		  &gt;
+		</PrefetchLink>
+		<PrefetchLink
+		    className="md:hidden p-2"
+		    to={buildTo (totalPages)}
+		    aria-label="最後のページ">
+		  &gt;|
+		</PrefetchLink>
+	      </>)
+	   : (
+	      <>
+		<span className="p-2" aria-hidden>&gt;</span>
+		<span className="md:hidden p-2" aria-hidden>&gt;|</span>
+	      </>)}
 	</div>
       </nav>)
 }) satisfies FC<Props>

frontend/src/pages/posts/PostDetailPage.tsx

@@ -99,7 +99,7 @@ export default (({ user }: Props) => {
 	</Helmet>
 
 	<div className="hidden md:block">
-	  <TagDetailSidebar post={post ?? null}/>
+	  {post && <TagDetailSidebar post={post}/>}
 	</div>
 
 	<MainArea className="relative">
@@ -149,7 +149,7 @@ export default (({ user }: Props) => {
 	</MainArea>
 
 	<div className="md:hidden">
-	  <TagDetailSidebar post={post ?? null}/>
+	  {post && <TagDetailSidebar post={post} sp/>}
 	</div>
       </div>)
 }) satisfies FC<Props>

frontend/src/pages/tags/TagListPage.tsx

@@ -41,8 +41,8 @@ export default (() => {
   const qName = query.get ('name') ?? ''
   const qCategory = (query.get ('category') || null) as Category | null
   const qPostCountGTE = Number (query.get ('post_count_gte') ?? 1)
-  const qPostCountLTE =
-      query.get ('post_count_lte') ? Number (query.get ('post_count_lte')) : null
+  const qPostCountLTERaw = query.get ('post_count_lte')
+  const qPostCountLTE = qPostCountLTERaw ? Number (qPostCountLTERaw) : null
   const qCreatedFrom = query.get ('created_from') ?? ''
   const qCreatedTo = query.get ('created_to') ?? ''
   const qUpdatedFrom = query.get ('updated_from') ?? ''

frontend/src/types.ts

@@ -73,7 +73,8 @@ export type Post = {
     originalCreatedFrom:    string | null
     originalCreatedBefore:  string | null
     createdAt:              string
-    updatedAt:              string }
+    updatedAt:              string
+    uploadedUser:           { id: number; name: string } | null }
 
 export type PostTagChange = {
     post:       Post