ajax, link_to remote in ruby on rails

Question

i am new to ruby on rails. i am following a tutorial to understand how ajax works on rails using link_to and remote=true. i have the following codes.

// in view/home/sample.html.erb

<head> <%= javascript_include_tag "prototype.js" %> </head>
<body>
<div id="time_div">
 <%= link_to("click here",  :update=>'time_div' ,:url=>{:action => :say_when} , :remote => true) %>
</div>
</body>

// in /controllers/home_controller.rb

def sample
end

def say_when
   render_text "<p>The time is <b>" + DateTime.now.to_s + "</b></p>"
end

i've put prototype.js in assets/javascripts folder. But i am not getting the time on browser. plz someone help

Answer 1

You're missing the javascript that will update the div content with the result of the Ajax request. You can try like this:

create say_when.js.erb with the following content

$("time_div").update('<%= escape_javascript("<p>The time is <b>#{DateTime.now.to_s}</b></p>")%>');

You can remove the method say_when from the controller, there is no code needed in it anymore, Rails will call directly the say_when.js.erb file.

Look at this #205 Unobtrusive Javascript Railscast that might explain things.

ajax, link_to remote in ruby on rails

Question

1 answers

solution1
1 ACCPTED 2013-03-17 18:25:41

ajax, link_to remote in ruby on rails

Question

1 answers

solution1 1 ACCPTED 2013-03-17 18:25:41

solution1
1 ACCPTED 2013-03-17 18:25:41