AI: address issue #152

backend/db/migrate/20261112000000_add_foreign_key_on_deerjikists_tag_id.rb

@@ -1,5 +0,0 @@
-class AddForeignKeyOnDeerjikistsTagId < ActiveRecord::Migration[8.0]
-  def change
-    add_foreign_key :deerjikists, :tags, column: :tag_id
-  end
-end

frontend/src/components/PostEmbed.tsx

@@ -177,6 +177,37 @@ 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':
     {