From 98330b00bb515cecadc7c8932008d1f3929396a1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E3=81=BF=E3=81=A6=E3=82=8B=E3=81=9E?= <miteruzo@naver.com>
Date: Thu, 5 Mar 2026 23:10:37 +0900
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#276

Co-authored-by: miteruzo <miteruzo@naver.com>
Reviewed-on: https://git.miteruzo.com/miteruzo/btrc-hub/pulls/277
---
 backend/lib/tasks/sync_nico.rake | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/backend/lib/tasks/sync_nico.rake b/backend/lib/tasks/sync_nico.rake
index b3596cb..b726ac1 100644
--- a/backend/lib/tasks/sync_nico.rake
+++ b/backend/lib/tasks/sync_nico.rake
@@ -47,7 +47,6 @@ namespace :nico do
     data = JSON.parse(stdout)
     data.each do |datum|
       code = datum['code']
-
       post =
           Post
           .where('url REGEXP ?', "nicovideo\\.jp/watch/#{ Regexp.escape(code) }([^0-9]|$)")
@@ -94,14 +93,15 @@ namespace :nico do
         sync_post_tags!(post, [Tag.tagme.id, Tag.bot.id, Tag.niconico.id, Tag.video.id])
       end
 
-      kept_ids = PostTag.kept.where(post_id: post.id).pluck(:tag_id).to_set
-      kept_non_nico_ids = post.tags.where.not(category: 'nico').pluck(:id).to_set
+      kept_ids = post.tags.pluck(:id).to_set
+      kept_non_nico_ids = post.tags.not_nico.pluck(:id).to_set
 
       desired_nico_ids = []
       desired_non_nico_ids = []
+
       datum['tags'].each do |raw|
         name = "nico:#{ raw }"
-        tag = Tag.find_or_create_by_tag_name!(name, category: 'nico')
+        tag = Tag.find_or_create_by_tag_name!(name, category: :nico)
         desired_nico_ids << tag.id
         unless tag.id.in?(kept_ids)
           linked_ids = tag.linked_tags.pluck(:id)
@@ -109,6 +109,13 @@ namespace :nico do
           desired_nico_ids.concat(linked_ids)
         end
       end
+
+      deerjikist = Deerjikist.find_by(platform: :nico, code: datum['user'])
+      if deerjikist
+        desired_non_nico_ids << deerjikist.tag_id
+        desired_nico_ids << deerjikist.tag_id
+      end
+
       desired_nico_ids.uniq!
 
       desired_all_ids = kept_non_nico_ids.to_a + desired_nico_ids