title: Search in Ruby On Rails
body: <p>I have a small site with about 500 photos and 150 visitors per day which is hosted on Dreamhost. I would like to add a simple search engine that does <b>not need to run long time processes</b> which are not allowed on shared host.</p>
  
  <p>The search engine should process different fields belonging to various models: Photo, Photo.author.name, Photo.comments.content and many others</p>
  
  <p>Is there any plugin that can help?</p>