#309

backend/app/services/nico_tag_version_recorder.rb

@@ -12,5 +12,8 @@ class NicoTagVersionRecorder < VersionRecorder
   def version_class = NicoTagVersion
   def version_association = :nico_tag_versions
   def record_key = :tag
-  def snapshot_attributes = { name: @tag.name, linked_tags: @tag.snapshot_linked_tags.join(' ') }
+
+  def snapshot_attributes
+    { name: @record.name, linked_tags: @record.snapshot_linked_tags.join(' ') }
+  end
 end

backend/app/services/post_version_recorder.rb

@@ -1,4 +1,4 @@
-class PostVersionRecorder
+class PostVersionRecorder < VersionRecorder
   def self.record! post:, event_type:, created_by_user:
     new(post:, event_type:, created_by_user:).record!
   end
@@ -14,12 +14,12 @@ class PostVersionRecorder
   def record_key = :post
 
   def snapshot_attributes
-    { title: @post.title,
-      url: @post.url,
-      thumbnail_base: @post.thumbnail_base,
-      tags: @post.snapshot_tag_names.join(' '),
-      parent: @post.parent,
-      original_created_from: @post.original_created_from,
-      original_created_before: @post.original_created_before }
+    { title: @record.title,
+      url: @record.url,
+      thumbnail_base: @record.thumbnail_base,
+      tags: @record.snapshot_tag_names.join(' '),
+      parent: @record.parent,
+      original_created_from: @record.original_created_from,
+      original_created_before: @record.original_created_before }
   end
 end

backend/app/services/tag_version_recorder.rb

@@ -14,9 +14,9 @@ class TagVersionRecorder < VersionRecorder
   def record_key = :tag
 
   def snapshot_attributes
-    { name: @tag.name,
-      category: @tag.category,
-      aliases: @tag.snapshot_aliases.join(' '),
-      parent_tag_ids: @tag.snapshot_parent_tag_ids.join(' ') }
+    { name: @record.name,
+      category: @record.category,
+      aliases: @record.snapshot_aliases.join(' '),
+      parent_tag_ids: @record.snapshot_parent_tag_ids.join(' ') }
   end
 end

backend/app/services/tag_versioning.rb

@@ -0,0 +1,26 @@
+class TagVersioning
+  def self.record! tag, event_type:, created_by_user:
+    if tag.nico?
+      NicoTagVersionRecorder.record!(tag:, event_type:, created_by_user:)
+    else
+      TagVersionRecorder.record!(tag:, event_type:, created_by_user:)
+    end
+  end
+
+  def self.record_tag_snapshot! tag, created_by_user:
+    event_type =
+        if tag.nico?
+          tag.nico_tag_versions.exists? ? :update : :create
+        else
+          tag.tag_versions.exists? ? :update : :create
+        end
+
+    record!(tag, event_type:, created_by_user:)
+  end
+
+  def self.record_tag_snapshots! tags, created_by_user:
+    tags.each do |tag|
+      record_tag_snapshot!(tag, created_by_user:)
+    end
+  end
+end

backend/app/services/version_recorder.rb

@@ -9,7 +9,7 @@ class VersionRecorder
     validate_event_type!
   end
 
-  def record! record, event_type:, created_by_user:
+  def record!
     @record.with_lock do
       latest = latest_version