Question

I added a configuration variable in application.rb such as

module Www
    class Application < Rails::Application
      ...
      config.myurl = "http://localhost:8443/play"
end

After something is clicked on my page I would like to use the value of this config var in order to come up with my full url such as mypage.js having

function ClickedOnSomething(someid){
    var fullUrl = <value of config.myurl> + '?id='+someid+'.html'; 
    ...
}

so that if for example the id of what I clicked on was 1776 then the fullUrl would be the string
http://localhost:8443/play?id=1776.html

I am using Ruby on Rails 3.2.3 and Ruby 1.9.3

One thing I tried was going through the controller like the following:

In application_controller.rb I added

def before_filter
  # This variable will be available in all controller actions and views
  @url_global = Www::Application.config.myurl
end

In application.html.erb I added

<script type="text/javascript">
  var url_global = "<%= @url_global %>"
</script>

Then in mypage.js I did

function ClickedOnSomething(someid){
    var fullUrl = @url_global + '?id='+someid+'.html'; 
    ...
}

but @url_global is not recognized. I have actually tried many different variations of using the var in javascript but nothing is working for me.

Answer 1

I saw you declare

var url_global = "<%= @url_global %>";

so you have to use url_global in function, not @url_global;

var fullUrl = url_global + '?id='+someid+'.html'; 

Am I correct?