Passing a Ruby session variable to a JavaScript tag: a step-by-step guide

I'm currently collaborating with a vendor who utilizes a JavaScript tag for sale attribution, and I need to pass session variables to the tag. The tag appears to be firing properly, as I can see the variables in the logs, but they aren't reflected in the tag itself.

To troubleshoot, I confirmed that the session variable is set by adding puts{variable} to the controller, which displays the correct values in the log. However, I am unable to retrieve these variables within the JavaScript tag.

Here is the Tag code:

:javascript

  /* Extole Script */
  (function(c,e,k,l,a){c[e]=c[e]||{};for(c[e].q=c[e].q||[];a<l.length;)k(l[a++],c[e])})(window,"extole",function(c,e){e[c]=e[c]||function(){e.q.push([c,arguments])}},["createZone"],0);
  /* End Extole Script */
   extole.createZone({
     name: 'conversion',
     data: {
       "first_name" = <%= fist_name %>,
       "last_name" = <%= last_name%>,
       "email" = <%= email_address>,

     }
  });

This is the Controller code:

  def index

    if session['cart_products'] == nil
      session['cart_products'] = {}
    end
    puts "\n\nCoupon\n\n"
    puts session['coupon_code']
    puts session['email_address']
    puts session['first_name']
    puts session['last_name']
    puts session['carttotal']
    puts "\n\n"
    @cart_size = session['cart_products'].length

  

The logs display the session['first_name'] value.

Answer №1

Have you attempted to implement the identical code within the view, such as:

"name" = <%= session["name"] %>

Answer №2

It appears that your template is using HAML based on the presence of the :javascript filter, but you are attempting to use ERB interpolation within it.

You should utilize proper HAML interpolation instead:

:javascript

  /* Extole Script */
  (function(c,e,k,l,a){c[e]=c[e]||{};for(c[e].q=c[e].q||[];a<l.length;)k(l[a++],c[e])})(window,"extole",function(c,e){e[c]=e[c]||function(){e.q.push([c,arguments])}},["createZone"],0);
  /* End Extole Script */
   extole.createZone({
     name: 'conversion',
     data: {
       "first_name" = '#{fist_name}',
       "last_name" = '#{last_name}',
       "email" = '#{email_address}',

     }
  });

The single quotes around the variables are necessary for JavaScript to interpret them as strings.

For more information, refer to the documentation:

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