title: Rails 3: How to make an Ajax call?
body: <p>I would like to have a link (is there a better option?) on my page which will make an Ajax request when clicked. (I would like to update a field in my database when the link is clicked.)</p>
  
  <p>What is the simplest way to achieve this ?</p>
  
  <p>Could you refer me to some tutorials ?</p>