title: Implementing Observer Pattern for my Rails App
body: <p>I am currently using rails 3.0.7 and ruby 1.9.2 and making a rails App which contains a video being loaded from a database while being rendered by FlowPlayer. and a set of slides based on the video. Now, I wanted to synchronize the slides with the video. For the timings, I am asking the user to enter the timings of each slide. So, I was wondering if i could use observer pattern for this by making a sort of central time as the subject and the video and slides as the observers?</p>
  
  <p>While, the concept seems correct after going through a number of tutorials on the net, I am not able to proceed or ge ideas on coding it.</p>
  
  <p>Any help would be greatly appreciated.</p>