Automatically eager load all integrations when in Rails context

lib/offsite_payments.rb

@@ -32,6 +32,11 @@ def self.integration(name)
     Integrations.const_get("#{name.to_s.downcase}".camelize)
   end
 
+  def self.eager_load!
+    Integrations.eager_load!
+    nil
+  end
+
   mattr_accessor :mode
   self.mode = :production
 
@@ -42,3 +47,5 @@ def self.test?
 
   CURRENCIES_WITHOUT_FRACTIONS = [ 'BIF', 'BYR', 'CLP', 'CVE', 'DJF', 'GNF', 'ISK', 'JPY', 'KMF', 'KRW', 'PYG', 'RWF', 'TWD', 'UGX', 'VND', 'VUV', 'XAF', 'XOF', 'XPF' ]
 end
+
+require "offsite_payments/railtie" if defined? Rails::Railtie

lib/offsite_payments/integrations.rb

@@ -10,5 +10,12 @@ module Integrations
       # Register for autoloading
       autoload integration_class, f
     end
+
+    def self.eager_load!
+      constants.each do |const_name|
+        const_get(const_name)
+      end
+      nil
+    end
   end
 end

lib/offsite_payments/railtie.rb

@@ -0,0 +1,7 @@
+module OffsitePayments
+  class Railtie < Rails::Railtie
+    config.before_eager_load do
+      config.eager_load_namespace << OffsitePayments
+    end
+  end
+end

test/test_helper.rb

@@ -9,6 +9,7 @@
 require 'json'
 require 'nokogiri'
 
+require 'active_support'
 require 'active_support/core_ext/integer/time'
 require 'active_support/core_ext/numeric/time'
 require 'active_support/core_ext/time/acts_like'