カラムマッパの初期化処理をgem読み込みと同時に行うように変更

lib/comable/engine.rb

@@ -3,5 +3,10 @@
 module Comable
   class Engine < ::Rails::Engine
     isolate_namespace Comable
+
+    # Bulletと競合するため、Bulletよりあとに有効になるよう初期化順序を調整
+    initializer :comable_columns_mapper do
+      config.after_initialize { Comable::ColumnsMapper.enable }
+    end
   end
 end

spec/dummy/config/application.rb

@@ -24,16 +24,5 @@ class Application < Rails::Application
     # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
     config.i18n.default_locale = :ja
     I18n.enforce_available_locales = true
-
-    config.after_initialize do
-      # for Bullet
-      if Rails.env.test?
-        Bullet.enable = true
-        Bullet.bullet_logger = true
-        Bullet.raise = true
-      end
-
-      Comable::ColumnsMapper.enable
-    end
   end
 end

spec/dummy/config/environments/test.rb

@@ -33,4 +33,11 @@
 
   # Print deprecation notices to the stderr.
   config.active_support.deprecation = :stderr
+
+  # for Bullet
+  config.after_initialize do
+    Bullet.enable = true
+    Bullet.bullet_logger = true
+    Bullet.raise = true
+  end
 end