AI: address review on PR #468

backend/app/controllers/posts_controller.rb

@@ -314,7 +314,9 @@ class PostsController < ApplicationController
   def viewed
     return head :unauthorized unless current_user
 
-    current_user.viewed_posts << Post.find(params[:id])
+    UserPostView.create_or_find_by!(
+        user: current_user,
+        post: Post.find(params[:id]))
     head :no_content
   end
 

backend/spec/requests/posts_spec.rb

@@ -2559,6 +2559,21 @@ RSpec.describe 'Posts API', type: :request do
 
       expect(user.reload.viewed?(post_record)).to be(true)
     end
+
+    it '204 and keeps one view on repeated requests' do
+      sign_in_as(user)
+
+      expect {
+        post "/posts/#{ post_record.id }/viewed"
+      }.to change(UserPostView, :count).by(1)
+      expect(response).to have_http_status(:no_content)
+
+      expect {
+        post "/posts/#{ post_record.id }/viewed"
+      }.not_to change(UserPostView, :count)
+      expect(response).to have_http_status(:no_content)
+      expect(user.reload.viewed?(post_record)).to be(true)
+    end
   end
 
   describe 'DELETE /posts/:id/viewed' do

frontend/src/components/PostEmbed.tsx

@@ -177,37 +177,6 @@ const PostEmbed: FC<Props> = (
 	      onError={onError}/>)
     }
 
-  case 'pixiv.net':
-    {
-      if (url.hostname !== 'pixiv.net' && url.hostname !== 'www.pixiv.net')
-	break
-
-      const artworkId =
-	  url.pathname === '/member_illust.php'
-	  ? url.searchParams.get ('illust_id')
-	  : url.pathname.match (
-	      /^\/(?:[a-z]{2}(?:-[A-Za-z]{2})?\/)?artworks\/(\d+)\/?$/)?.[1]
-
-      if (!(artworkId) || !(/^\d+$/.test (artworkId)))
-	break
-
-      if (embedAutoLoadMode === 'off')
-	return externalLink
-      if (shouldLoadEmbed === false)
-	return manualLoadControl
-
-      const embedUrl =
-	  `https://embed.pixiv.net/oembed_iframe.php?type=illust&id=${ artworkId }`
-
-      return (
-	  <iframe
-	      src={embedUrl}
-	      title={post.title || post.url}
-	      width={600}
-	      height={315}
-	      className="max-w-full"/>)
-    }
-
   case 'twitter.com':
   case 'x.com':
     {