Move YoutubeTitles callback into module

app/models/comment.rb

@@ -25,7 +25,6 @@ class Comment < ActiveRecord::Base
 
   serialize :youtube_titles, Hash
   before_save do
-    get_youtube_title text
     self.text.strip! unless self.text.nil?
   end
   def diaspora_handle

app/models/request.rb

@@ -71,7 +71,7 @@ class Request
   private
 
   def not_already_connected
-    if sender && recipient && Contact.where(:user_id => self.recipient.owner_id, :person_id => self.sender.id).count > 0
+    if sender && recipient && Contact.where(:user_id => self.recipient.owner_id, :person_id => self.sender.id).exists?
       errors[:base] << 'You have already connected to this person'
     end
   end

app/models/status_message.rb

@@ -23,9 +23,6 @@ class StatusMessage < Post
   attr_accessible :text
 
   serialize :youtube_titles, Hash
-  before_save do
-    get_youtube_title text
-  end
 
   before_create :build_tags
 

lib/youtube_titles.rb

@@ -1,4 +1,12 @@
 module YoutubeTitles
+  def self.included(model)
+    model.class_eval do
+      before_save do
+        get_youtube_title text
+      end
+    end if model.respond_to?(:before_save)
+  end
+
   def youtube_title_for video_id
     http = Net::HTTP.new('gdata.youtube.com', 80)
     path = "/feeds/api/videos/#{video_id}?v=2"