#294

backend/app/models/tag.rb

@@ -98,7 +98,9 @@ class Tag < ApplicationRecord
     @niconico ||= find_or_create_by_tag_name!('ニコニコ', category: :meta)
   end
 
-  def self.normalise_tags tag_names, with_tagme: true, deny_nico: true
+  def self.normalise_tags tag_names, with_tagme: true,
+                                     with_no_deerjikist: true,
+                                     deny_nico: true
     if deny_nico && tag_names.any? { |n| n.downcase.start_with?('nico:') }
       raise NicoTagNormalisationError
     end
@@ -112,7 +114,7 @@ class Tag < ApplicationRecord
     end
 
     tags << Tag.tagme if with_tagme && tags.size < 10 && tags.none?(Tag.tagme)
-    tags << Tag.no_deerjikist if tags.all? { |t| !(t.deerjikist?) }
+    tags << Tag.no_deerjikist if with_no_deerjikist && tags.all? { |t| !(t.deerjikist?) }
     tags.uniq(&:id)
   end