title: 'Connect' a rails app to an already existing MySQL DB?
body: <p>So in my company we are slowly moving to Rails instead of PHP(Code Igniter to be precise).
  So, our actual PHP App is using a Mysql DB and I'd like to connect a new Rails app to this DB but meanwhile our PHP is still running, so I can't change the DB.</p>
  
  <p>I don't really know where I should start to use all the rails features (Or at least as much as possible).</p>