title: Rails auto reload page when some record change?
body: <p>I have a rails app, some pages show data from DB, does any way that when I change specify DB record(almost use phone app calls web API),and if my web idle on page which related the change data, the specify page will <code>auto reload or refresh?</code> does it can use <code>ajax</code> or <code>javascript</code> to achieve?</p>
  
  <p>I use rails 4.2.2 &amp; mysql</p>