Simplify installation by using a helper to include the javascript loader in application layout.

Author: kpheasey

lib/generators/rails_script/install/install_generator.rb

@@ -22,26 +22,9 @@ def create_controllers
 
       def insert_layout_javascript
         say <<-RUBY
-In order to complete installation, you must add the following JavaScript snippet before the CLOSING body tag in your application layout.
+In order to complete installation, you must include the following helper BEFORE the closing body tag in the application layout:
 
-ERB:
-<script>
-  jQuery(function() {
-    window.$this = new (App.<%= controller_path.split(/\\/|_/).map(&:capitalize).join('') %> || App.Base)();
-    if (typeof $this.<%= action_name %> === 'function') {
-      return $this.<%= action_name%>.call();
-    }
-  });
-</script>
-
-HAML:
-:javascript
-  jQuery(function() {
-    window.$this = new (App.\#{controller_path.split(/\\/|_/).map(&:capitalize).join('')} || App.Base)();
-    if (typeof $this.\#{action_name} === 'function') {
-      return $this.\#{action_name}.call();
-    }
-  });
+<%= include_rails_script %>
         RUBY
       end
 

lib/rails_script.rb

@@ -1,4 +1,5 @@
 require 'rails_script/version'
+require 'rails_script/loader_helper'
 require 'rails_script/railtie' if defined?(Rails)
 
 module RailsScript

lib/rails_script/loader_helper.rb

@@ -0,0 +1,16 @@
+module RailsScript
+  module LoaderHelper
+
+    def include_rails_script
+      javascript_tag <<-RUBY
+  jQuery(function() {
+    window.$this = new (App.#{ controller_path.split(/\/|_/).map(&:capitalize).join('') } || App.Base)();
+    if (typeof $this.#{ action_name } === 'function') {
+      return $this.#{ action_name }.call();
+    }
+  });
+      RUBY
+    end
+
+  end
+end

lib/rails_script/railtie.rb

@@ -3,5 +3,9 @@ class Railtie < Rails::Railtie
     config.app_generators do |g|
       g.templates.unshift File::expand_path('../../templates', __FILE__)
     end
+
+    initializer 'rails_Script.loader_helper' do
+      ActionView::Base.send :include, LoaderHelper
+    end
   end
 end