#422

backend/app/controllers/wiki_pages_controller.rb

@@ -118,15 +118,23 @@ class WikiPagesController < ApplicationController
     return render_unprocessable_entity('タイトルは必須です．', field: :title) if title.blank?
     return render_unprocessable_entity('本文は必須です．', field: :body) if body.blank?
 
-    page = ApplicationRecord.transaction do
-      tag_name = TagName.find_or_create_by!(language_code: 'ja', name: title) do |name|
-        name.script_code = 'Jpan'
-        name.primary_flg = true
-        name.auto_generated = false
-      end
+    page = if title.include?(':')
+      ApplicationRecord.transaction do
+        tag_name = TagName.find_or_create_by!(language_code: 'ja', name: title) do |name|
+          name.script_code = 'Jpan'
+          name.primary_flg = true
+          name.auto_generated = false
+        end
 
-      Wiki::Commit.create_content!(
-          tag_name:, body:, created_by_user: current_user, message:)
+        Wiki::Commit.create_legacy_content!(
+            tag_name:, body:, created_by_user: current_user, message:)
+      end
+    else
+      tag_name = TagName.find_by(language_code: 'ja', name: title)
+      return render_unprocessable_entity field: :title unless tag_name&.tag
+
+      TagDescriptionOperation.create!(
+          tag: tag_name.tag, body:, created_by_user: current_user, message:)
     end
 
     render json: WikiPageRepr.base(page), status: :created