Deleted the last of the rendering logic from Revision (making it a totally anemic entity, by the way)

app/models/page.rb

@@ -13,7 +13,8 @@ class Page < ActiveRecord::Base
     author = Author.new(author.to_s) unless author.is_a?(Author)
 
     # Try to render content to make sure that markup engine can take it,
-    Revision.new(:page => self, :content => content, :author => author, :revised_at => time).force_rendering
+    r = Revision.new(:page => self, :content => content, :author => author, :revised_at => time)
+    PageRenderer.new(r).force_rendering
 
     # A user may change a page, look at it and make some more changes - several times.
     # Not to record every such iteration as a new revision, if the previous revision was done 

app/models/revision.rb

@@ -1,12 +1,4 @@
-require 'diff'
 class Revision < ActiveRecord::Base
   belongs_to :page
   composed_of :author, :mapping => [ %w(author name), %w(ip ip) ]
-
-  after_create :force_rendering
-
-  def force_rendering
-    PageRenderer.new(self).force_rendering
-  end
-
 end

lib/page_renderer.rb

@@ -1,3 +1,4 @@
+require 'diff'
 # Temporary class containing all rendering stuff from a Revision 
 # I want to shift all rendering loguc to the controller eventually