title: How to get automatically meta description and keywords in Rails?
body: <p>I am developing an application with Rails 3, one of requeriments is unique meta descriptions and keywords on each page to improve the SEO.</p>
  
  <p>The client needs that this do automatically. How do you do this? Is better do this with Rails, Ruby or directly with Javascript?</p>
  
  <p>Thanks. </p>