#422

backend/app/services/wiki/commit.rb

@@ -43,11 +43,9 @@ module Wiki
 
     def self.content! page:, body:, created_user:, message: nil, base_revision_id: nil
       tag = page.tag_name.tag
-      description = tag && page.tag_name.language_code == 'ja' &&
-          TagDescription.find_by(tag_id: tag.id, language_code: 'ja')
       if tag && page.tag_name.language_code == 'ja'
         return TagDescriptionOperation.update!(
-            description:, page:, body:, updated_by_user: created_user,
+            tag:, body:, updated_by_user: created_user,
             message:, base_revision_id:)
       end
 

backend/app/services/wiki/compatibility_writer.rb

@@ -0,0 +1,33 @@
+module Wiki
+  class CompatibilityWriter
+    def self.create! tag_name:, body:, created_by_user:, message: nil
+      Commit.create_legacy_content!(
+          tag_name:, body:, created_by_user:, message:)
+    end
+
+    def self.update! page:, body:, updated_by_user:, message: nil,
+                     base_revision_id: nil
+      normalised = Commit.normalise_body(body)
+      if normalised.blank?
+        return Commit.legacy_content!(
+            page:, body: normalised, created_user: updated_by_user, message:,
+            base_revision_id:)
+      end
+
+      if base_revision_id.present?
+        current_id = page.wiki_revisions.maximum(:id)
+        if current_id && current_id != base_revision_id.to_i
+          raise Commit::Conflict,
+              "競合が発生してゐます" +
+              "（現在の Id.：#{ current_id }，ベース Id.：#{ base_revision_id }）．"
+        end
+      end
+
+      return if Commit.normalise_body(page.body) == normalised
+
+      Commit.legacy_content!(
+          page:, body: normalised, created_user: updated_by_user, message:,
+          base_revision_id:)
+    end
+  end
+end