Update the helper file to exist with the engine application as opposed

to being a library file.

app/helpers/acts_as_taggable_on/tags_helper.rb

@@ -0,0 +1,17 @@
+module ActsAsTaggableOn
+  module TagsHelper
+    # See the README for an example using tag_cloud.
+    def tag_cloud(tags, classes)
+      tags = tags.all if tags.respond_to?(:all)
+
+      return [] if tags.empty?
+
+      max_count = tags.sort_by(&:count).last.count.to_f
+
+      tags.each do |tag|
+        index = ((tag.count / max_count) * (classes.size - 1))
+        yield tag, classes[index.nan? ? 0 : index.round]
+      end
+    end
+  end
+end

lib/acts_as_taggable_on/engine.rb

@@ -5,11 +5,5 @@ class Engine < Rails::Engine
       ActiveRecord::Base.extend ActsAsTaggableOn::Taggable
       ActiveRecord::Base.send :include, ActsAsTaggableOn::Tagger
     end
-
-    #initializer 'ActsAsTaggableOn AcrtionView' do |app|
-      #ActiveSupport.on_load(:action_view) do
-        #include ActsAsTaggableOn::TagsHelper
-      #end
-    #end
   end
 end

lib/acts_as_taggable_on/tags_helper.rb

@@ -1,17 +1,17 @@
-module ActsAsTaggableOn
-  module TagsHelper
-    # See the README for an example using tag_cloud.
-    def tag_cloud(tags, classes)
-      tags = tags.all if tags.respond_to?(:all)
+#module ActsAsTaggableOn
+  #module TagsHelper
+    ## See the README for an example using tag_cloud.
+    #def tag_cloud(tags, classes)
+      #tags = tags.all if tags.respond_to?(:all)
 
-      return [] if tags.empty?
+      #return [] if tags.empty?
 
-      max_count = tags.sort_by(&:count).last.count.to_f
+      #max_count = tags.sort_by(&:count).last.count.to_f
 
-      tags.each do |tag|
-        index = ((tag.count / max_count) * (classes.size - 1))
-        yield tag, classes[index.nan? ? 0 : index.round]
-      end
-    end
-  end
-end
+      #tags.each do |tag|
+        #index = ((tag.count / max_count) * (classes.size - 1))
+        #yield tag, classes[index.nan? ? 0 : index.round]
+      #end
+    #end
+  #end
+#end