1 files changed, 8 insertions, 0 deletions
diff --git a/activemodel/lib/active_model/railtie.rb b/activemodel/lib/active_model/railtie.rb
index 1671eb7bd4..0ed70bd473 100644
--- a/activemodel/lib/active_model/railtie.rb
+++ b/activemodel/lib/active_model/railtie.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "active_model"
 require "rails"
 
@@ -5,8 +7,14 @@ module ActiveModel
   class Railtie < Rails::Railtie # :nodoc:
     config.eager_load_namespaces << ActiveModel
 
+    config.active_model = ActiveSupport::OrderedOptions.new
+
     initializer "active_model.secure_password" do
       ActiveModel::SecurePassword.min_cost = Rails.env.test?
     end
+
+    initializer "active_model.i18n_full_message" do
+      ActiveModel::Errors.i18n_full_message = config.active_model.delete(:i18n_full_message) || false
+    end
   end
 end